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
14°C maximum daytime temperature in October in Bangor14
10°C maximum daytime temperature in November in Bangor10
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
7°C minimum night-time temperature in May in Bangor7
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
10°C minimum night-time temperature in September in Bangor10
8°C minimum night-time temperature in October in Bangor8
5°C minimum night-time temperature in November in Bangor5
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

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

Sunshine & UV index 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
16 hours of daylight per day in July in Bangor16
15 hours of daylight per day in August in Bangor15
13 hours of daylight per day in September in Bangor13
11 hours of daylight per day in October in Bangor11
9 hours of daylight per day in November in Bangor9
8 hours of daylight per day in December in Bangor8
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 4 (Moderate) in April in Bangor4
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 4 (Moderate) in September in Bangor4
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
21 days with some rainfall in January in Bangor21
16 days with some rainfall in February in Bangor16
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
14 days with some rainfall in July in Bangor14
16 days with some rainfall in August in Bangor16
17 days with some rainfall in September in Bangor17
20 days with some rainfall in October in Bangor20
21 days with some rainfall in November in Bangor21
21 days with some rainfall in December in Bangor21
Average monthly rainfall (mm)
139 mm monthly rainfall in January in Bangor139
93 mm monthly rainfall in February in Bangor93
109 mm monthly rainfall in March in Bangor109
79 mm monthly rainfall in April in Bangor79
79 mm monthly rainfall in May in Bangor79
82 mm monthly rainfall in June in Bangor82
83 mm monthly rainfall in July in Bangor83
109 mm monthly rainfall in August in Bangor109
121 mm monthly rainfall in September in Bangor121
148 mm monthly rainfall in October in Bangor148
161 mm monthly rainfall in November in Bangor161
157 mm monthly rainfall in December in Bangor157

More about Bangor

Bangor by month

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

Recommended for Wales

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  • Travel before 20th March 2026 (inclusive)

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The climate guide for Wales (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, 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 139 mm of rainfall in the month.

  • 7°C maximum daytime temperature in January in Bangor7
    7°C max day temperature
  • 1 hour of sunshine per day
  • 21 days with some rainfall in January in Bangor21
    21 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
  • 139 mm monthly rainfall in January in Bangor139
    139 mm of monthly rainfall
  • No UV (maximum) index in January in Bangor0
    No UV (Maximum) Index UV index

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Bangor weather in February

Expect daytime maximum temperatures of 7°C in Bangor, Wales in February based on long-term weather averages. There are 3 hours of sunshine per day on average with 16 days with some rainfall and typically 93 mm of rainfall in the month.

  • 7°C maximum daytime temperature in February in Bangor7
    7°C max day temperature
  • 3 hours of sunshine per day
  • 16 days with some rainfall in February in Bangor16
    16 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
  • 93 mm monthly rainfall in February in Bangor93
    93 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Bangor1
    1 (Low) UV index

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Bangor weather in March

Expect daytime maximum temperatures of 9°C in Bangor, Wales 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 109 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
  • 109 mm monthly rainfall in March in Bangor109
    109 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Bangor2
    2 (Low) UV index

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Bangor weather in April

Expect daytime maximum temperatures of 11°C in Bangor, 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 79 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
  • 79 mm monthly rainfall in April in Bangor79
    79 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Bangor4
    4 (Moderate) UV index

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Bangor weather in May

Expect daytime maximum temperatures of 14°C in Bangor, 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 79 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
  • 7°C minimum night-time temperature in May in Bangor7
    7°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
  • 79 mm monthly rainfall in May in Bangor79
    79 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Bangor5
    5 (Moderate) UV index

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Bangor weather in June

Expect daytime maximum temperatures of 17°C in Bangor, Wales 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 82 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
  • 82 mm monthly rainfall in June in Bangor82
    82 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Bangor6
    6 (High) UV index

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Bangor weather in July

Expect daytime maximum temperatures of 18°C in Bangor, Wales in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 83 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
  • 14 days with some rainfall in July in Bangor14
    14 days with some rainfall
  • 11°C minimum night-time temperature in July in Bangor11
    11°C min night temperature
  • 16 hours of daylight per day in July in Bangor16
    16 hours of daylight per day
  • No heat & humidity in July in Bangor0
    No heat & humidity
  • 83 mm monthly rainfall in July in Bangor83
    83 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Bangor6
    6 (High) UV index

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Bangor weather in August

Expect daytime maximum temperatures of 18°C in Bangor, 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 109 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
  • 16 days with some rainfall in August in Bangor16
    16 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
  • 109 mm monthly rainfall in August in Bangor109
    109 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Bangor5
    5 (Moderate) UV index

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Bangor weather in September

Expect daytime maximum temperatures of 16°C in Bangor, Wales 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 121 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
  • 10°C minimum night-time temperature in September in Bangor10
    10°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
  • 121 mm monthly rainfall in September in Bangor121
    121 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Bangor4
    4 (Moderate) UV index

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Bangor weather in October

Expect daytime maximum temperatures of 14°C in Bangor, Wales in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 20 days with some rainfall and typically 148 mm of rainfall in the month.

  • 14°C maximum daytime temperature in October in Bangor14
    14°C max day temperature
  • 3 hours of sunshine per day
  • 20 days with some rainfall in October in Bangor20
    20 days with some rainfall
  • 8°C minimum night-time temperature in October in Bangor8
    8°C min night temperature
  • 11 hours of daylight per day in October in Bangor11
    11 hours of daylight per day
  • No heat & humidity in October in Bangor0
    No heat & humidity
  • 148 mm monthly rainfall in October in Bangor148
    148 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Bangor2
    2 (Low) UV index

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Bangor weather in November

Expect daytime maximum temperatures of 10°C in Bangor, Wales in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 21 days with some rainfall and typically 161 mm of rainfall in the month.

  • 10°C maximum daytime temperature in November in Bangor10
    10°C max day temperature
  • 2 hours of sunshine per day
  • 21 days with some rainfall in November in Bangor21
    21 days with some rainfall
  • 5°C minimum night-time temperature in November in Bangor5
    5°C min night temperature
  • 9 hours of daylight per day in November in Bangor9
    9 hours of daylight per day
  • No heat & humidity in November in Bangor0
    No heat & humidity
  • 161 mm monthly rainfall in November in Bangor161
    161 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Bangor1
    1 (Low) UV index

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Bangor weather in December

Expect daytime maximum temperatures of 8°C in Bangor, Wales in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 21 days with some rainfall and typically 157 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
  • 21 days with some rainfall in December in Bangor21
    21 days with some rainfall
  • 3°C minimum night-time temperature in December in Bangor3
    3°C min night temperature
  • 8 hours of daylight per day in December in Bangor8
    8 hours of daylight per day
  • No heat & humidity in December in Bangor0
    No heat & humidity
  • 157 mm monthly rainfall in December in Bangor157
    157 mm of monthly rainfall
  • No UV (maximum) index in December in Bangor0
    No UV (Maximum) Index UV index

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More about Bangor

Bangor 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

TravelodgeHotel deal finder

The climate guide for Wales (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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Compare Bangor weather with the UK

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

Maximum daytime temperature (°C)

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

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

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