Bangor weather by month

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

Temperature in Bangor (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
7°C maximum daytime temperature in January in Bangor7
7°C maximum daytime temperature in February in Bangor7
9°C maximum daytime temperature in March in Bangor9
11°C maximum daytime temperature in April in Bangor11
14°C maximum daytime temperature in May in Bangor14
17°C maximum daytime temperature in June in Bangor17
18°C maximum daytime temperature in July in Bangor18
18°C maximum daytime temperature in August in Bangor18
16°C maximum daytime temperature in September in Bangor16
13°C maximum daytime temperature in October in Bangor13
9°C maximum daytime temperature in November in Bangor9
8°C maximum daytime temperature in December in Bangor8
Min temperature (night-time)
2°C minimum night-time temperature in January in Bangor2
2°C minimum night-time temperature in February in Bangor2
3°C minimum night-time temperature in March in Bangor3
4°C minimum night-time temperature in April in Bangor4
6°C minimum night-time temperature in May in Bangor6
9°C minimum night-time temperature in June in Bangor9
11°C minimum night-time temperature in July in Bangor11
11°C minimum night-time temperature in August in Bangor11
9°C minimum night-time temperature in September in Bangor9
7°C minimum night-time temperature in October in Bangor7
4°C minimum night-time temperature in November in Bangor4
3°C minimum night-time temperature in December in Bangor3
Heat & Humidity
No heat & humidity in January in Bangor0
No heat & humidity in February in Bangor0
No heat & humidity in March in Bangor0
No heat & humidity in April in Bangor0
No heat & humidity in May in Bangor0
No heat & humidity in June in Bangor0
No heat & humidity in July in Bangor0
No heat & humidity in August in Bangor0
No heat & humidity in September in Bangor0
No heat & humidity in October in Bangor0
No heat & humidity in November in Bangor0
No heat & humidity in December in Bangor0
Sea temperature
9°C sea temperature in January in Bangor9
8°C sea temperature in February in Bangor8
7°C sea temperature in March in Bangor7
8°C sea temperature in April in Bangor8
9°C sea temperature in May in Bangor9
11°C sea temperature in June in Bangor11
13°C sea temperature in July in Bangor13
13°C sea temperature in August in Bangor13
14°C sea temperature in September in Bangor14
13°C sea temperature in October in Bangor13
12°C sea temperature in November in Bangor12
10°C sea temperature in December in Bangor10

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

Sunshine & Daylight in Bangor

  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 Bangor8
10 hours of daylight per day in February in Bangor10
12 hours of daylight per day in March in Bangor12
14 hours of daylight per day in April in Bangor14
16 hours of daylight per day in May in Bangor16
17 hours of daylight per day in June in Bangor17
17 hours of daylight per day in July in Bangor17
15 hours of daylight per day in August in Bangor15
13 hours of daylight per day in September in Bangor13
10 hours of daylight per day in October in Bangor10
8 hours of daylight per day in November in Bangor8
7 hours of daylight per day in December in Bangor7
UV Index (Maximum)
No UV (maximum) index in January in Bangor0
UV (maximum) index 1 (Low) in February in Bangor1
UV (maximum) index 2 (Low) in March in Bangor2
UV (maximum) index 3 (Moderate) in April in Bangor3
UV (maximum) index 5 (Moderate) in May in Bangor5
UV (maximum) index 6 (High) in June in Bangor6
UV (maximum) index 6 (High) in July in Bangor6
UV (maximum) index 5 (Moderate) in August in Bangor5
UV (maximum) index 3 (Moderate) in September in Bangor3
UV (maximum) index 2 (Low) in October in Bangor2
UV (maximum) index 1 (Low) in November in Bangor1
No UV (maximum) index in December in Bangor0

Rainfall in Bangor

  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 Bangor20
15 days with some rainfall in February in Bangor15
19 days with some rainfall in March in Bangor19
15 days with some rainfall in April in Bangor15
16 days with some rainfall in May in Bangor16
15 days with some rainfall in June in Bangor15
15 days with some rainfall in July in Bangor15
17 days with some rainfall in August in Bangor17
17 days with some rainfall in September in Bangor17
19 days with some rainfall in October in Bangor19
19 days with some rainfall in November in Bangor19
20 days with some rainfall in December in Bangor20
Average monthly rainfall (mm)
98 mm monthly rainfall in January in Bangor98
69 mm monthly rainfall in February in Bangor69
74 mm monthly rainfall in March in Bangor74
58 mm monthly rainfall in April in Bangor58
62 mm monthly rainfall in May in Bangor62
64 mm monthly rainfall in June in Bangor64
57 mm monthly rainfall in July in Bangor57
84 mm monthly rainfall in August in Bangor84
88 mm monthly rainfall in September in Bangor88
97 mm monthly rainfall in October in Bangor97
90 mm monthly rainfall in November in Bangor90
88 mm monthly rainfall in December in Bangor88

More about Bangor

Bangor by month

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

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The climate guide for Northern Ireland (Bangor) 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 Bangor?

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

Bangor weather in January

Expect daytime maximum temperatures of 7°C in Bangor, Northern Ireland 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 98 mm of rainfall in the month.

  • 7°C maximum daytime temperature in January in Bangor7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in January in Bangor20
    20 days with some rainfall
  • 2°C minimum night-time temperature in January in Bangor2
    2°C min night temperature
  • 8 hours of daylight per day in January in Bangor8
    8 hours of daylight per day
  • No heat & humidity in January in Bangor0
    No heat & humidity
  • 98 mm monthly rainfall in January in Bangor98
    98 mm of monthly rainfall
  • No UV (maximum) index in January in Bangor0
    No UV (Maximum) Index UV index
  • 9°C sea temperature in January in Bangor9
    9°C sea temperature

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Bangor weather in February

Expect daytime maximum temperatures of 7°C in Bangor, Northern Ireland in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 69 mm of rainfall in the month.

  • 7°C maximum daytime temperature in February in Bangor7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 15 days with some rainfall in February in Bangor15
    15 days with some rainfall
  • 2°C minimum night-time temperature in February in Bangor2
    2°C min night temperature
  • 10 hours of daylight per day in February in Bangor10
    10 hours of daylight per day
  • No heat & humidity in February in Bangor0
    No heat & humidity
  • 69 mm monthly rainfall in February in Bangor69
    69 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Bangor1
    1 (Low) UV index
  • 8°C sea temperature in February in Bangor8
    8°C sea temperature

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Bangor weather in March

Expect daytime maximum temperatures of 9°C in Bangor, Northern Ireland in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 19 days with some rainfall and typically 74 mm of rainfall in the month.

  • 9°C maximum daytime temperature in March in Bangor9
    9°C max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in March in Bangor19
    19 days with some rainfall
  • 3°C minimum night-time temperature in March in Bangor3
    3°C min night temperature
  • 12 hours of daylight per day in March in Bangor12
    12 hours of daylight per day
  • No heat & humidity in March in Bangor0
    No heat & humidity
  • 74 mm monthly rainfall in March in Bangor74
    74 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Bangor2
    2 (Low) UV index
  • 7°C sea temperature in March in Bangor7
    7°C sea temperature

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Bangor weather in April

Expect daytime maximum temperatures of 11°C in Bangor, Northern Ireland 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 58 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Bangor11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in April in Bangor15
    15 days with some rainfall
  • 4°C minimum night-time temperature in April in Bangor4
    4°C min night temperature
  • 14 hours of daylight per day in April in Bangor14
    14 hours of daylight per day
  • No heat & humidity in April in Bangor0
    No heat & humidity
  • 58 mm monthly rainfall in April in Bangor58
    58 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in April in Bangor3
    3 (Moderate) UV index
  • 8°C sea temperature in April in Bangor8
    8°C sea temperature

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Bangor weather in May

Expect daytime maximum temperatures of 14°C in Bangor, Northern Ireland 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 62 mm of rainfall in the month.

  • 14°C maximum daytime temperature in May in Bangor14
    14°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in May in Bangor16
    16 days with some rainfall
  • 6°C minimum night-time temperature in May in Bangor6
    6°C min night temperature
  • 16 hours of daylight per day in May in Bangor16
    16 hours of daylight per day
  • No heat & humidity in May in Bangor0
    No heat & humidity
  • 62 mm monthly rainfall in May in Bangor62
    62 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Bangor5
    5 (Moderate) UV index
  • 9°C sea temperature in May in Bangor9
    9°C sea temperature

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Bangor weather in June

Expect daytime maximum temperatures of 17°C in Bangor, Northern Ireland in June based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 64 mm of rainfall in the month.

  • 17°C maximum daytime temperature in June in Bangor17
    17°C max day temperature
  • 6 hours of sunshine per day
  • 15 days with some rainfall in June in Bangor15
    15 days with some rainfall
  • 9°C minimum night-time temperature in June in Bangor9
    9°C min night temperature
  • 17 hours of daylight per day in June in Bangor17
    17 hours of daylight per day
  • No heat & humidity in June in Bangor0
    No heat & humidity
  • 64 mm monthly rainfall in June in Bangor64
    64 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Bangor6
    6 (High) UV index
  • 11°C sea temperature in June in Bangor11
    11°C sea temperature

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Bangor weather in July

Expect daytime maximum temperatures of 18°C in Bangor, Northern Ireland in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 57 mm of rainfall in the month.

  • 18°C maximum daytime temperature in July in Bangor18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in July in Bangor15
    15 days with some rainfall
  • 11°C minimum night-time temperature in July in Bangor11
    11°C min night temperature
  • 17 hours of daylight per day in July in Bangor17
    17 hours of daylight per day
  • No heat & humidity in July in Bangor0
    No heat & humidity
  • 57 mm monthly rainfall in July in Bangor57
    57 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Bangor6
    6 (High) UV index
  • 13°C sea temperature in July in Bangor13
    13°C sea temperature

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Bangor weather in August

Expect daytime maximum temperatures of 18°C in Bangor, Northern Ireland in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 84 mm of rainfall in the month.

  • 18°C maximum daytime temperature in August in Bangor18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in August in Bangor17
    17 days with some rainfall
  • 11°C minimum night-time temperature in August in Bangor11
    11°C min night temperature
  • 15 hours of daylight per day in August in Bangor15
    15 hours of daylight per day
  • No heat & humidity in August in Bangor0
    No heat & humidity
  • 84 mm monthly rainfall in August in Bangor84
    84 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Bangor5
    5 (Moderate) UV index
  • 13°C sea temperature in August in Bangor13
    13°C sea temperature

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Bangor weather in September

Expect daytime maximum temperatures of 16°C in Bangor, Northern Ireland in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 17 days with some rainfall and typically 88 mm of rainfall in the month.

  • 16°C maximum daytime temperature in September in Bangor16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 17 days with some rainfall in September in Bangor17
    17 days with some rainfall
  • 9°C minimum night-time temperature in September in Bangor9
    9°C min night temperature
  • 13 hours of daylight per day in September in Bangor13
    13 hours of daylight per day
  • No heat & humidity in September in Bangor0
    No heat & humidity
  • 88 mm monthly rainfall in September in Bangor88
    88 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Bangor3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Bangor14
    14°C sea temperature

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Bangor weather in October

Expect daytime maximum temperatures of 13°C in Bangor, Northern Ireland 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 97 mm of rainfall in the month.

  • 13°C maximum daytime temperature in October in Bangor13
    13°C max day temperature
  • 3 hours of sunshine per day
  • 19 days with some rainfall in October in Bangor19
    19 days with some rainfall
  • 7°C minimum night-time temperature in October in Bangor7
    7°C min night temperature
  • 10 hours of daylight per day in October in Bangor10
    10 hours of daylight per day
  • No heat & humidity in October in Bangor0
    No heat & humidity
  • 97 mm monthly rainfall in October in Bangor97
    97 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Bangor2
    2 (Low) UV index
  • 13°C sea temperature in October in Bangor13
    13°C sea temperature

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Bangor weather in November

Expect daytime maximum temperatures of 9°C in Bangor, Northern Ireland 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 90 mm of rainfall in the month.

  • 9°C maximum daytime temperature in November in Bangor9
    9°C max day temperature
  • 2 hours of sunshine per day
  • 19 days with some rainfall in November in Bangor19
    19 days with some rainfall
  • 4°C minimum night-time temperature in November in Bangor4
    4°C min night temperature
  • 8 hours of daylight per day in November in Bangor8
    8 hours of daylight per day
  • No heat & humidity in November in Bangor0
    No heat & humidity
  • 90 mm monthly rainfall in November in Bangor90
    90 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Bangor1
    1 (Low) UV index
  • 12°C sea temperature in November in Bangor12
    12°C sea temperature

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Bangor weather in December

Expect daytime maximum temperatures of 8°C in Bangor, Northern Ireland 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 88 mm of rainfall in the month.

  • 8°C maximum daytime temperature in December in Bangor8
    8°C max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Bangor20
    20 days with some rainfall
  • 3°C minimum night-time temperature in December in Bangor3
    3°C min night temperature
  • 7 hours of daylight per day in December in Bangor7
    7 hours of daylight per day
  • No heat & humidity in December in Bangor0
    No heat & humidity
  • 88 mm monthly rainfall in December in Bangor88
    88 mm of monthly rainfall
  • No UV (maximum) index in December in Bangor0
    No UV (Maximum) Index UV index
  • 10°C sea temperature in December in Bangor10
    10°C sea temperature

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More about Bangor

Bangor by month

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

Recommended for Northern Ireland

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  • Travel before 31st December 2026 (inclusive)

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The climate guide for Northern Ireland (Bangor) 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 / mm)  |  Imperial (°F / inches)

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More about the UK

Compare Bangor with the UK

Below the Bangor chart shows average maximum daytime temperature for Bangor, North Down, Northern Ireland and the UK (London).

Maximum daytime temperature (°C)

Bangor, North Down, Northern Ireland
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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