Camarthen weather by month

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

Temperature in Camarthen (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
45°F maximum daytime temperature in January in Camarthen45
45°F maximum daytime temperature in February in Camarthen45
48°F maximum daytime temperature in March in Camarthen48
52°F maximum daytime temperature in April in Camarthen52
57°F maximum daytime temperature in May in Camarthen57
63°F maximum daytime temperature in June in Camarthen63
66°F maximum daytime temperature in July in Camarthen66
66°F maximum daytime temperature in August in Camarthen66
63°F maximum daytime temperature in September in Camarthen63
57°F maximum daytime temperature in October in Camarthen57
50°F maximum daytime temperature in November in Camarthen50
46°F maximum daytime temperature in December in Camarthen46
Min temperature (night-time)
36°F minimum night-time temperature in January in Camarthen36
34°F minimum night-time temperature in February in Camarthen34
36°F minimum night-time temperature in March in Camarthen36
39°F minimum night-time temperature in April in Camarthen39
45°F minimum night-time temperature in May in Camarthen45
48°F minimum night-time temperature in June in Camarthen48
52°F minimum night-time temperature in July in Camarthen52
52°F minimum night-time temperature in August in Camarthen52
48°F minimum night-time temperature in September in Camarthen48
45°F minimum night-time temperature in October in Camarthen45
39°F minimum night-time temperature in November in Camarthen39
36°F minimum night-time temperature in December in Camarthen36
Heat & Humidity
No heat & humidity in January in Camarthen0
No heat & humidity in February in Camarthen0
No heat & humidity in March in Camarthen0
No heat & humidity in April in Camarthen0
No heat & humidity in May in Camarthen0
No heat & humidity in June in Camarthen0
No heat & humidity in July in Camarthen0
No heat & humidity in August in Camarthen0
No heat & humidity in September in Camarthen0
No heat & humidity in October in Camarthen0
No heat & humidity in November in Camarthen0
No heat & humidity in December in Camarthen0

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

Sunshine & UV index in Camarthen

  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 Camarthen8
10 hours of daylight per day in February in Camarthen10
12 hours of daylight per day in March in Camarthen12
14 hours of daylight per day in April in Camarthen14
16 hours of daylight per day in May in Camarthen16
17 hours of daylight per day in June in Camarthen17
16 hours of daylight per day in July in Camarthen16
15 hours of daylight per day in August in Camarthen15
13 hours of daylight per day in September in Camarthen13
11 hours of daylight per day in October in Camarthen11
9 hours of daylight per day in November in Camarthen9
8 hours of daylight per day in December in Camarthen8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Camarthen1
UV (maximum) index 1 (Low) in February in Camarthen1
UV (maximum) index 2 (Low) in March in Camarthen2
UV (maximum) index 4 (Moderate) in April in Camarthen4
UV (maximum) index 5 (Moderate) in May in Camarthen5
UV (maximum) index 6 (High) in June in Camarthen6
UV (maximum) index 6 (High) in July in Camarthen6
UV (maximum) index 5 (Moderate) in August in Camarthen5
UV (maximum) index 4 (Moderate) in September in Camarthen4
UV (maximum) index 2 (Low) in October in Camarthen2
UV (maximum) index 1 (Low) in November in Camarthen1
No UV (maximum) index in December in Camarthen0

Rainfall in Camarthen

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
20 days with some rainfall in January in Camarthen20
15 days with some rainfall in February in Camarthen15
17 days with some rainfall in March in Camarthen17
14 days with some rainfall in April in Camarthen14
14 days with some rainfall in May in Camarthen14
14 days with some rainfall in June in Camarthen14
13 days with some rainfall in July in Camarthen13
15 days with some rainfall in August in Camarthen15
16 days with some rainfall in September in Camarthen16
19 days with some rainfall in October in Camarthen19
19 days with some rainfall in November in Camarthen19
20 days with some rainfall in December in Camarthen20
Average monthly rainfall (inches)
6.1 inches monthly rainfall in January in Camarthen6.1
4.0 inches monthly rainfall in February in Camarthen4.0
4.4 inches monthly rainfall in March in Camarthen4.4
3.3 inches monthly rainfall in April in Camarthen3.3
3.3 inches monthly rainfall in May in Camarthen3.3
3.4 inches monthly rainfall in June in Camarthen3.4
3.4 inches monthly rainfall in July in Camarthen3.4
4.4 inches monthly rainfall in August in Camarthen4.4
5.0 inches monthly rainfall in September in Camarthen5.0
6.1 inches monthly rainfall in October in Camarthen6.1
6.1 inches monthly rainfall in November in Camarthen6.1
6.4 inches monthly rainfall in December in Camarthen6.4

More about Camarthen

Camarthen by month

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

Recommended for Wales

  • Book hotels in the UK for £35 or less (London from £49)
  • Prices based on lowest saver room rates. T&Cs apply
  • Travel before 20th March 2026 (inclusive)

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The climate guide for Wales (Camarthen) 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 Camarthen?

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

Camarthen weather in January

Expect daytime maximum temperatures of 45°F in Camarthen, Wales in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 6.1 inches of rainfall in the month.

  • 45°F maximum daytime temperature in January in Camarthen45
    45°F max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in January in Camarthen20
    20 days with some rainfall
  • 36°F minimum night-time temperature in January in Camarthen36
    36°F min night temperature
  • 8 hours of daylight per day in January in Camarthen8
    8 hours of daylight per day
  • No heat & humidity in January in Camarthen0
    No heat & humidity
  • 6.1 inches monthly rainfall in January in Camarthen6.1
    6.1 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Camarthen1
    1 (Low) UV index

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Camarthen weather in February

Expect daytime maximum temperatures of 45°F in Camarthen, Wales in February based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 4.0 inches of rainfall in the month.

  • 45°F maximum daytime temperature in February in Camarthen45
    45°F max day temperature
  • 3 hours of sunshine per day
  • 15 days with some rainfall in February in Camarthen15
    15 days with some rainfall
  • 34°F minimum night-time temperature in February in Camarthen34
    34°F min night temperature
  • 10 hours of daylight per day in February in Camarthen10
    10 hours of daylight per day
  • No heat & humidity in February in Camarthen0
    No heat & humidity
  • 4.0 inches monthly rainfall in February in Camarthen4.0
    4.0 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Camarthen1
    1 (Low) UV index

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Camarthen weather in March

Expect daytime maximum temperatures of 48°F in Camarthen, Wales in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 17 days with some rainfall and typically 4.4 inches of rainfall in the month.

  • 48°F maximum daytime temperature in March in Camarthen48
    48°F max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in March in Camarthen17
    17 days with some rainfall
  • 36°F minimum night-time temperature in March in Camarthen36
    36°F min night temperature
  • 12 hours of daylight per day in March in Camarthen12
    12 hours of daylight per day
  • No heat & humidity in March in Camarthen0
    No heat & humidity
  • 4.4 inches monthly rainfall in March in Camarthen4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Camarthen2
    2 (Low) UV index

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Camarthen weather in April

Expect daytime maximum temperatures of 52°F in Camarthen, Wales in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 3.3 inches of rainfall in the month.

  • 52°F maximum daytime temperature in April in Camarthen52
    52°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in April in Camarthen14
    14 days with some rainfall
  • 39°F minimum night-time temperature in April in Camarthen39
    39°F min night temperature
  • 14 hours of daylight per day in April in Camarthen14
    14 hours of daylight per day
  • No heat & humidity in April in Camarthen0
    No heat & humidity
  • 3.3 inches monthly rainfall in April in Camarthen3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Camarthen4
    4 (Moderate) UV index

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Camarthen weather in May

Expect daytime maximum temperatures of 57°F in Camarthen, Wales in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 3.3 inches of rainfall in the month.

  • 57°F maximum daytime temperature in May in Camarthen57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in May in Camarthen14
    14 days with some rainfall
  • 45°F minimum night-time temperature in May in Camarthen45
    45°F min night temperature
  • 16 hours of daylight per day in May in Camarthen16
    16 hours of daylight per day
  • No heat & humidity in May in Camarthen0
    No heat & humidity
  • 3.3 inches monthly rainfall in May in Camarthen3.3
    3.3 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Camarthen5
    5 (Moderate) UV index

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Camarthen weather in June

Expect daytime maximum temperatures of 63°F in Camarthen, 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 3.4 inches of rainfall in the month.

  • 63°F maximum daytime temperature in June in Camarthen63
    63°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in June in Camarthen14
    14 days with some rainfall
  • 48°F minimum night-time temperature in June in Camarthen48
    48°F min night temperature
  • 17 hours of daylight per day in June in Camarthen17
    17 hours of daylight per day
  • No heat & humidity in June in Camarthen0
    No heat & humidity
  • 3.4 inches monthly rainfall in June in Camarthen3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 6 (High) in June in Camarthen6
    6 (High) UV index

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Camarthen weather in July

Expect daytime maximum temperatures of 66°F in Camarthen, Wales in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 3.4 inches of rainfall in the month.

  • 66°F maximum daytime temperature in July in Camarthen66
    66°F max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in July in Camarthen13
    13 days with some rainfall
  • 52°F minimum night-time temperature in July in Camarthen52
    52°F min night temperature
  • 16 hours of daylight per day in July in Camarthen16
    16 hours of daylight per day
  • No heat & humidity in July in Camarthen0
    No heat & humidity
  • 3.4 inches monthly rainfall in July in Camarthen3.4
    3.4 inches of monthly rainfall
  • UV (maximum) index 6 (High) in July in Camarthen6
    6 (High) UV index

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Camarthen weather in August

Expect daytime maximum temperatures of 66°F in Camarthen, Wales in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 4.4 inches of rainfall in the month.

  • 66°F maximum daytime temperature in August in Camarthen66
    66°F max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in August in Camarthen15
    15 days with some rainfall
  • 52°F minimum night-time temperature in August in Camarthen52
    52°F min night temperature
  • 15 hours of daylight per day in August in Camarthen15
    15 hours of daylight per day
  • No heat & humidity in August in Camarthen0
    No heat & humidity
  • 4.4 inches monthly rainfall in August in Camarthen4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Camarthen5
    5 (Moderate) UV index

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Camarthen weather in September

Expect daytime maximum temperatures of 63°F in Camarthen, 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 5.0 inches of rainfall in the month.

  • 63°F maximum daytime temperature in September in Camarthen63
    63°F max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Camarthen16
    16 days with some rainfall
  • 48°F minimum night-time temperature in September in Camarthen48
    48°F min night temperature
  • 13 hours of daylight per day in September in Camarthen13
    13 hours of daylight per day
  • No heat & humidity in September in Camarthen0
    No heat & humidity
  • 5.0 inches monthly rainfall in September in Camarthen5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Camarthen4
    4 (Moderate) UV index

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Camarthen weather in October

Expect daytime maximum temperatures of 57°F in Camarthen, Wales in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 19 days with some rainfall and typically 6.1 inches of rainfall in the month.

  • 57°F maximum daytime temperature in October in Camarthen57
    57°F max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in October in Camarthen19
    19 days with some rainfall
  • 45°F minimum night-time temperature in October in Camarthen45
    45°F min night temperature
  • 11 hours of daylight per day in October in Camarthen11
    11 hours of daylight per day
  • No heat & humidity in October in Camarthen0
    No heat & humidity
  • 6.1 inches monthly rainfall in October in Camarthen6.1
    6.1 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Camarthen2
    2 (Low) UV index

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Camarthen weather in November

Expect daytime maximum temperatures of 50°F in Camarthen, Wales in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 19 days with some rainfall and typically 6.1 inches of rainfall in the month.

  • 50°F maximum daytime temperature in November in Camarthen50
    50°F max day temperature
  • 2 hours of sunshine per day
  • 19 days with some rainfall in November in Camarthen19
    19 days with some rainfall
  • 39°F minimum night-time temperature in November in Camarthen39
    39°F min night temperature
  • 9 hours of daylight per day in November in Camarthen9
    9 hours of daylight per day
  • No heat & humidity in November in Camarthen0
    No heat & humidity
  • 6.1 inches monthly rainfall in November in Camarthen6.1
    6.1 inches of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Camarthen1
    1 (Low) UV index

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Camarthen weather in December

Expect daytime maximum temperatures of 46°F in Camarthen, 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 6.4 inches of rainfall in the month.

  • 46°F maximum daytime temperature in December in Camarthen46
    46°F max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Camarthen20
    20 days with some rainfall
  • 36°F minimum night-time temperature in December in Camarthen36
    36°F min night temperature
  • 8 hours of daylight per day in December in Camarthen8
    8 hours of daylight per day
  • No heat & humidity in December in Camarthen0
    No heat & humidity
  • 6.4 inches monthly rainfall in December in Camarthen6.4
    6.4 inches of monthly rainfall
  • No UV (maximum) index in December in Camarthen0
    No UV (Maximum) Index UV index

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More about Camarthen

Camarthen by month

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

Recommended for Wales

  • Book hotels in the UK for £35 or less (London from £49)
  • Prices based on lowest saver room rates. T&Cs apply
  • Travel before 20th March 2026 (inclusive)

Expires at 23:59 on Friday 20th Mar 2026 · View all Travelodge offers

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The climate guide for Wales (Camarthen) 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 Camarthen weather with the UK

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

Maximum daytime temperature (°F)

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

Metric (°C)  |  Imperial (°F)

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