Barmouth weather by month

Check out Barmouth weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Barmouth (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
43°F maximum daytime temperature in January in Barmouth43
43°F maximum daytime temperature in February in Barmouth43
46°F maximum daytime temperature in March in Barmouth46
52°F maximum daytime temperature in April in Barmouth52
57°F maximum daytime temperature in May in Barmouth57
61°F maximum daytime temperature in June in Barmouth61
64°F maximum daytime temperature in July in Barmouth64
64°F maximum daytime temperature in August in Barmouth64
61°F maximum daytime temperature in September in Barmouth61
55°F maximum daytime temperature in October in Barmouth55
48°F maximum daytime temperature in November in Barmouth48
45°F maximum daytime temperature in December in Barmouth45
Min temperature (night-time)
34°F minimum night-time temperature in January in Barmouth34
34°F minimum night-time temperature in February in Barmouth34
36°F minimum night-time temperature in March in Barmouth36
37°F minimum night-time temperature in April in Barmouth37
43°F minimum night-time temperature in May in Barmouth43
48°F minimum night-time temperature in June in Barmouth48
52°F minimum night-time temperature in July in Barmouth52
52°F minimum night-time temperature in August in Barmouth52
48°F minimum night-time temperature in September in Barmouth48
45°F minimum night-time temperature in October in Barmouth45
39°F minimum night-time temperature in November in Barmouth39
36°F minimum night-time temperature in December in Barmouth36
Heat & Humidity
No heat & humidity in January in Barmouth0
No heat & humidity in February in Barmouth0
No heat & humidity in March in Barmouth0
No heat & humidity in April in Barmouth0
No heat & humidity in May in Barmouth0
No heat & humidity in June in Barmouth0
No heat & humidity in July in Barmouth0
No heat & humidity in August in Barmouth0
No heat & humidity in September in Barmouth0
No heat & humidity in October in Barmouth0
No heat & humidity in November in Barmouth0
No heat & humidity in December in Barmouth0
Sea temperature
45°F sea temperature in January in Barmouth45
45°F sea temperature in February in Barmouth45
45°F sea temperature in March in Barmouth45
48°F sea temperature in April in Barmouth48
54°F sea temperature in May in Barmouth54
57°F sea temperature in June in Barmouth57
61°F sea temperature in July in Barmouth61
63°F sea temperature in August in Barmouth63
61°F sea temperature in September in Barmouth61
57°F sea temperature in October in Barmouth57
52°F sea temperature in November in Barmouth52
48°F sea temperature in December in Barmouth48

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Barmouth

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in Barmouth8
10 hours of daylight per day in February in Barmouth10
12 hours of daylight per day in March in Barmouth12
14 hours of daylight per day in April in Barmouth14
16 hours of daylight per day in May in Barmouth16
17 hours of daylight per day in June in Barmouth17
16 hours of daylight per day in July in Barmouth16
15 hours of daylight per day in August in Barmouth15
13 hours of daylight per day in September in Barmouth13
11 hours of daylight per day in October in Barmouth11
9 hours of daylight per day in November in Barmouth9
8 hours of daylight per day in December in Barmouth8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Barmouth1
UV (maximum) index 1 (Low) in February in Barmouth1
UV (maximum) index 2 (Low) in March in Barmouth2
UV (maximum) index 4 (Moderate) in April in Barmouth4
UV (maximum) index 5 (Moderate) in May in Barmouth5
UV (maximum) index 6 (High) in June in Barmouth6
UV (maximum) index 6 (High) in July in Barmouth6
UV (maximum) index 5 (Moderate) in August in Barmouth5
UV (maximum) index 4 (Moderate) in September in Barmouth4
UV (maximum) index 2 (Low) in October in Barmouth2
UV (maximum) index 1 (Low) in November in Barmouth1
No UV (maximum) index in December in Barmouth0

Rainfall in Barmouth

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
21 days with some rainfall in January in Barmouth21
16 days with some rainfall in February in Barmouth16
18 days with some rainfall in March in Barmouth18
15 days with some rainfall in April in Barmouth15
16 days with some rainfall in May in Barmouth16
14 days with some rainfall in June in Barmouth14
13 days with some rainfall in July in Barmouth13
16 days with some rainfall in August in Barmouth16
16 days with some rainfall in September in Barmouth16
18 days with some rainfall in October in Barmouth18
20 days with some rainfall in November in Barmouth20
20 days with some rainfall in December in Barmouth20
Average monthly rainfall (inches)
7.4 inches monthly rainfall in January in Barmouth7.4
5.0 inches monthly rainfall in February in Barmouth5.0
5.9 inches monthly rainfall in March in Barmouth5.9
4.2 inches monthly rainfall in April in Barmouth4.2
4.0 inches monthly rainfall in May in Barmouth4.0
4.2 inches monthly rainfall in June in Barmouth4.2
4.3 inches monthly rainfall in July in Barmouth4.3
5.7 inches monthly rainfall in August in Barmouth5.7
6.3 inches monthly rainfall in September in Barmouth6.3
7.6 inches monthly rainfall in October in Barmouth7.6
8.1 inches monthly rainfall in November in Barmouth8.1
8.4 inches monthly rainfall in December in Barmouth8.4

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Barmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Wales (Barmouth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Barmouth?

Barmouth has a temperate climate with warm summers and some rainfall in all months.

Barmouth weather in January

Expect daytime maximum temperatures of 43°F in Barmouth, Wales in January based on long-term weather averages. There is 1 hour of sunshine per day on average with 21 days with some rainfall and typically 7.4 inches of rainfall in the month.

  • 43°F maximum daytime temperature in January in Barmouth43
    43°F max day temperature
  • 1 hour of sunshine per day
  • 21 days with some rainfall in January in Barmouth21
    21 days with some rainfall
  • 34°F minimum night-time temperature in January in Barmouth34
    34°F min night temperature
  • 8 hours of daylight per day in January in Barmouth8
    8 hours of daylight per day
  • No heat & humidity in January in Barmouth0
    No heat & humidity
  • 7.4 inches monthly rainfall in January in Barmouth7.4
    7.4 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Barmouth1
    1 (Low) UV index
  • 45°F sea temperature in January in Barmouth45
    45°F sea temperature

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Barmouth weather in February

Expect daytime maximum temperatures of 43°F in Barmouth, Wales in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 16 days with some rainfall and typically 5.0 inches of rainfall in the month.

  • 43°F maximum daytime temperature in February in Barmouth43
    43°F max day temperature
  • 2 hours of sunshine per day
  • 16 days with some rainfall in February in Barmouth16
    16 days with some rainfall
  • 34°F minimum night-time temperature in February in Barmouth34
    34°F min night temperature
  • 10 hours of daylight per day in February in Barmouth10
    10 hours of daylight per day
  • No heat & humidity in February in Barmouth0
    No heat & humidity
  • 5.0 inches monthly rainfall in February in Barmouth5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Barmouth1
    1 (Low) UV index
  • 45°F sea temperature in February in Barmouth45
    45°F sea temperature

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Barmouth weather in March

Expect daytime maximum temperatures of 46°F in Barmouth, Wales in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 5.9 inches of rainfall in the month.

  • 46°F maximum daytime temperature in March in Barmouth46
    46°F max day temperature
  • 3 hours of sunshine per day
  • 18 days with some rainfall in March in Barmouth18
    18 days with some rainfall
  • 36°F minimum night-time temperature in March in Barmouth36
    36°F min night temperature
  • 12 hours of daylight per day in March in Barmouth12
    12 hours of daylight per day
  • No heat & humidity in March in Barmouth0
    No heat & humidity
  • 5.9 inches monthly rainfall in March in Barmouth5.9
    5.9 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Barmouth2
    2 (Low) UV index
  • 45°F sea temperature in March in Barmouth45
    45°F sea temperature

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Barmouth weather in April

Expect daytime maximum temperatures of 52°F in Barmouth, Wales in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 4.2 inches of rainfall in the month.

  • 52°F maximum daytime temperature in April in Barmouth52
    52°F max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in April in Barmouth15
    15 days with some rainfall
  • 37°F minimum night-time temperature in April in Barmouth37
    37°F min night temperature
  • 14 hours of daylight per day in April in Barmouth14
    14 hours of daylight per day
  • No heat & humidity in April in Barmouth0
    No heat & humidity
  • 4.2 inches monthly rainfall in April in Barmouth4.2
    4.2 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Barmouth4
    4 (Moderate) UV index
  • 48°F sea temperature in April in Barmouth48
    48°F sea temperature

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Barmouth weather in May

Expect daytime maximum temperatures of 57°F in Barmouth, Wales in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 4.0 inches of rainfall in the month.

  • 57°F maximum daytime temperature in May in Barmouth57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Barmouth16
    16 days with some rainfall
  • 43°F minimum night-time temperature in May in Barmouth43
    43°F min night temperature
  • 16 hours of daylight per day in May in Barmouth16
    16 hours of daylight per day
  • No heat & humidity in May in Barmouth0
    No heat & humidity
  • 4.0 inches monthly rainfall in May in Barmouth4.0
    4.0 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Barmouth5
    5 (Moderate) UV index
  • 54°F sea temperature in May in Barmouth54
    54°F sea temperature

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Barmouth weather in June

Expect daytime maximum temperatures of 61°F in Barmouth, Wales in June based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 4.2 inches of rainfall in the month.

  • 61°F maximum daytime temperature in June in Barmouth61
    61°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in June in Barmouth14
    14 days with some rainfall
  • 48°F minimum night-time temperature in June in Barmouth48
    48°F min night temperature
  • 17 hours of daylight per day in June in Barmouth17
    17 hours of daylight per day
  • No heat & humidity in June in Barmouth0
    No heat & humidity
  • 4.2 inches monthly rainfall in June in Barmouth4.2
    4.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in June in Barmouth6
    6 (High) UV index
  • 57°F sea temperature in June in Barmouth57
    57°F sea temperature

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Barmouth weather in July

Expect daytime maximum temperatures of 64°F in Barmouth, Wales in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 4.3 inches of rainfall in the month.

  • 64°F maximum daytime temperature in July in Barmouth64
    64°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in July in Barmouth13
    13 days with some rainfall
  • 52°F minimum night-time temperature in July in Barmouth52
    52°F min night temperature
  • 16 hours of daylight per day in July in Barmouth16
    16 hours of daylight per day
  • No heat & humidity in July in Barmouth0
    No heat & humidity
  • 4.3 inches monthly rainfall in July in Barmouth4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 6 (High) in July in Barmouth6
    6 (High) UV index
  • 61°F sea temperature in July in Barmouth61
    61°F sea temperature

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Barmouth weather in August

Expect daytime maximum temperatures of 64°F in Barmouth, Wales in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 5.7 inches of rainfall in the month.

  • 64°F maximum daytime temperature in August in Barmouth64
    64°F max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in August in Barmouth16
    16 days with some rainfall
  • 52°F minimum night-time temperature in August in Barmouth52
    52°F min night temperature
  • 15 hours of daylight per day in August in Barmouth15
    15 hours of daylight per day
  • No heat & humidity in August in Barmouth0
    No heat & humidity
  • 5.7 inches monthly rainfall in August in Barmouth5.7
    5.7 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Barmouth5
    5 (Moderate) UV index
  • 63°F sea temperature in August in Barmouth63
    63°F sea temperature

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Barmouth weather in September

Expect daytime maximum temperatures of 61°F in Barmouth, Wales in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 6.3 inches of rainfall in the month.

  • 61°F maximum daytime temperature in September in Barmouth61
    61°F max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Barmouth16
    16 days with some rainfall
  • 48°F minimum night-time temperature in September in Barmouth48
    48°F min night temperature
  • 13 hours of daylight per day in September in Barmouth13
    13 hours of daylight per day
  • No heat & humidity in September in Barmouth0
    No heat & humidity
  • 6.3 inches monthly rainfall in September in Barmouth6.3
    6.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Barmouth4
    4 (Moderate) UV index
  • 61°F sea temperature in September in Barmouth61
    61°F sea temperature

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Barmouth weather in October

Expect daytime maximum temperatures of 55°F in Barmouth, Wales in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 7.6 inches of rainfall in the month.

  • 55°F maximum daytime temperature in October in Barmouth55
    55°F max day temperature
  • 3 hours of sunshine per day
  • 18 days with some rainfall in October in Barmouth18
    18 days with some rainfall
  • 45°F minimum night-time temperature in October in Barmouth45
    45°F min night temperature
  • 11 hours of daylight per day in October in Barmouth11
    11 hours of daylight per day
  • No heat & humidity in October in Barmouth0
    No heat & humidity
  • 7.6 inches monthly rainfall in October in Barmouth7.6
    7.6 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Barmouth2
    2 (Low) UV index
  • 57°F sea temperature in October in Barmouth57
    57°F sea temperature

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Barmouth weather in November

Expect daytime maximum temperatures of 48°F in Barmouth, Wales in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 8.1 inches of rainfall in the month.

  • 48°F maximum daytime temperature in November in Barmouth48
    48°F max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in November in Barmouth20
    20 days with some rainfall
  • 39°F minimum night-time temperature in November in Barmouth39
    39°F min night temperature
  • 9 hours of daylight per day in November in Barmouth9
    9 hours of daylight per day
  • No heat & humidity in November in Barmouth0
    No heat & humidity
  • 8.1 inches monthly rainfall in November in Barmouth8.1
    8.1 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Barmouth1
    1 (Low) UV index
  • 52°F sea temperature in November in Barmouth52
    52°F sea temperature

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Barmouth weather in December

Expect daytime maximum temperatures of 45°F in Barmouth, Wales in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 20 days with some rainfall and typically 8.4 inches of rainfall in the month.

  • 45°F maximum daytime temperature in December in Barmouth45
    45°F max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Barmouth20
    20 days with some rainfall
  • 36°F minimum night-time temperature in December in Barmouth36
    36°F min night temperature
  • 8 hours of daylight per day in December in Barmouth8
    8 hours of daylight per day
  • No heat & humidity in December in Barmouth0
    No heat & humidity
  • 8.4 inches monthly rainfall in December in Barmouth8.4
    8.4 inches of monthly rainfall
  • No UV (maximum) index in December in Barmouth0
    No UV (Maximum) Index UV index
  • 48°F sea temperature in December in Barmouth48
    48°F sea temperature

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More about Barmouth

Barmouth by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Wales (Barmouth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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Compare Barmouth weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Barmouth, Gwynedd, Wales and the UK (London).

Maximum daytime temperature (°F)

Barmouth, Gwynedd, Wales
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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