Grimsby weather by month

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

Temperature in Grimsby (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
6°C maximum daytime temperature in January in Grimsby6
7°C maximum daytime temperature in February in Grimsby7
9°C maximum daytime temperature in March in Grimsby9
11°C maximum daytime temperature in April in Grimsby11
15°C maximum daytime temperature in May in Grimsby15
18°C maximum daytime temperature in June in Grimsby18
20°C maximum daytime temperature in July in Grimsby20
20°C maximum daytime temperature in August in Grimsby20
18°C maximum daytime temperature in September in Grimsby18
14°C maximum daytime temperature in October in Grimsby14
9°C maximum daytime temperature in November in Grimsby9
7°C maximum daytime temperature in December in Grimsby7
Min temperature (night-time)
1°C minimum night-time temperature in January in Grimsby1
1°C minimum night-time temperature in February in Grimsby1
3°C minimum night-time temperature in March in Grimsby3
4°C minimum night-time temperature in April in Grimsby4
7°C minimum night-time temperature in May in Grimsby7
10°C minimum night-time temperature in June in Grimsby10
12°C minimum night-time temperature in July in Grimsby12
12°C minimum night-time temperature in August in Grimsby12
10°C minimum night-time temperature in September in Grimsby10
8°C minimum night-time temperature in October in Grimsby8
4°C minimum night-time temperature in November in Grimsby4
2°C minimum night-time temperature in December in Grimsby2
Heat & Humidity
No heat & humidity in January in Grimsby0
No heat & humidity in February in Grimsby0
No heat & humidity in March in Grimsby0
No heat & humidity in April in Grimsby0
No heat & humidity in May in Grimsby0
No heat & humidity in June in Grimsby0
No heat & humidity in July in Grimsby0
No heat & humidity in August in Grimsby0
No heat & humidity in September in Grimsby0
No heat & humidity in October in Grimsby0
No heat & humidity in November in Grimsby0
No heat & humidity in December in Grimsby0
Sea temperature
6°C sea temperature in January in Grimsby6
6°C sea temperature in February in Grimsby6
6°C sea temperature in March in Grimsby6
7°C sea temperature in April in Grimsby7
9°C sea temperature in May in Grimsby9
12°C sea temperature in June in Grimsby12
14°C sea temperature in July in Grimsby14
15°C sea temperature in August in Grimsby15
14°C sea temperature in September in Grimsby14
12°C sea temperature in October in Grimsby12
10°C sea temperature in November in Grimsby10
8°C sea temperature in December in Grimsby8

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

Sunshine & UV index in Grimsby

  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 Grimsby8
10 hours of daylight per day in February in Grimsby10
12 hours of daylight per day in March in Grimsby12
14 hours of daylight per day in April in Grimsby14
16 hours of daylight per day in May in Grimsby16
17 hours of daylight per day in June in Grimsby17
16 hours of daylight per day in July in Grimsby16
15 hours of daylight per day in August in Grimsby15
13 hours of daylight per day in September in Grimsby13
11 hours of daylight per day in October in Grimsby11
9 hours of daylight per day in November in Grimsby9
8 hours of daylight per day in December in Grimsby8
UV Index (Maximum)
No UV (maximum) index in January in Grimsby0
UV (maximum) index 1 (Low) in February in Grimsby1
UV (maximum) index 2 (Low) in March in Grimsby2
UV (maximum) index 4 (Moderate) in April in Grimsby4
UV (maximum) index 5 (Moderate) in May in Grimsby5
UV (maximum) index 6 (High) in June in Grimsby6
UV (maximum) index 6 (High) in July in Grimsby6
UV (maximum) index 5 (Moderate) in August in Grimsby5
UV (maximum) index 4 (Moderate) in September in Grimsby4
UV (maximum) index 2 (Low) in October in Grimsby2
UV (maximum) index 1 (Low) in November in Grimsby1
No UV (maximum) index in December in Grimsby0

Rainfall in Grimsby

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
18 days with some rainfall in January in Grimsby18
14 days with some rainfall in February in Grimsby14
17 days with some rainfall in March in Grimsby17
15 days with some rainfall in April in Grimsby15
14 days with some rainfall in May in Grimsby14
13 days with some rainfall in June in Grimsby13
12 days with some rainfall in July in Grimsby12
13 days with some rainfall in August in Grimsby13
13 days with some rainfall in September in Grimsby13
15 days with some rainfall in October in Grimsby15
18 days with some rainfall in November in Grimsby18
18 days with some rainfall in December in Grimsby18
Average monthly rainfall (mm)
56 mm monthly rainfall in January in Grimsby56
43 mm monthly rainfall in February in Grimsby43
49 mm monthly rainfall in March in Grimsby49
47 mm monthly rainfall in April in Grimsby47
50 mm monthly rainfall in May in Grimsby50
51 mm monthly rainfall in June in Grimsby51
51 mm monthly rainfall in July in Grimsby51
62 mm monthly rainfall in August in Grimsby62
53 mm monthly rainfall in September in Grimsby53
52 mm monthly rainfall in October in Grimsby52
63 mm monthly rainfall in November in Grimsby63
61 mm monthly rainfall in December in Grimsby61

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Grimsby by month

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

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The climate guide for England (Grimsby) 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 Grimsby?

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

Grimsby weather in January

Expect daytime maximum temperatures of 6°C in Grimsby, England in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 56 mm of rainfall in the month.

  • 6°C maximum daytime temperature in January in Grimsby6
    6°C max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in January in Grimsby18
    18 days with some rainfall
  • 1°C minimum night-time temperature in January in Grimsby1
    1°C min night temperature
  • 8 hours of daylight per day in January in Grimsby8
    8 hours of daylight per day
  • No heat & humidity in January in Grimsby0
    No heat & humidity
  • 56 mm monthly rainfall in January in Grimsby56
    56 mm of monthly rainfall
  • No UV (maximum) index in January in Grimsby0
    No UV (Maximum) Index UV index
  • 6°C sea temperature in January in Grimsby6
    6°C sea temperature

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Grimsby weather in February

Expect daytime maximum temperatures of 7°C in Grimsby, England in February based on long-term weather averages. There are 2 hours of sunshine per day on average with 14 days with some rainfall and typically 43 mm of rainfall in the month.

  • 7°C maximum daytime temperature in February in Grimsby7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 14 days with some rainfall in February in Grimsby14
    14 days with some rainfall
  • 1°C minimum night-time temperature in February in Grimsby1
    1°C min night temperature
  • 10 hours of daylight per day in February in Grimsby10
    10 hours of daylight per day
  • No heat & humidity in February in Grimsby0
    No heat & humidity
  • 43 mm monthly rainfall in February in Grimsby43
    43 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Grimsby1
    1 (Low) UV index
  • 6°C sea temperature in February in Grimsby6
    6°C sea temperature

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Grimsby weather in March

Expect daytime maximum temperatures of 9°C in Grimsby, England in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 17 days with some rainfall and typically 49 mm of rainfall in the month.

  • 9°C maximum daytime temperature in March in Grimsby9
    9°C max day temperature
  • 3 hours of sunshine per day
  • 17 days with some rainfall in March in Grimsby17
    17 days with some rainfall
  • 3°C minimum night-time temperature in March in Grimsby3
    3°C min night temperature
  • 12 hours of daylight per day in March in Grimsby12
    12 hours of daylight per day
  • No heat & humidity in March in Grimsby0
    No heat & humidity
  • 49 mm monthly rainfall in March in Grimsby49
    49 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Grimsby2
    2 (Low) UV index
  • 6°C sea temperature in March in Grimsby6
    6°C sea temperature

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Grimsby weather in April

Expect daytime maximum temperatures of 11°C in Grimsby, England 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 47 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Grimsby11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in April in Grimsby15
    15 days with some rainfall
  • 4°C minimum night-time temperature in April in Grimsby4
    4°C min night temperature
  • 14 hours of daylight per day in April in Grimsby14
    14 hours of daylight per day
  • No heat & humidity in April in Grimsby0
    No heat & humidity
  • 47 mm monthly rainfall in April in Grimsby47
    47 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Grimsby4
    4 (Moderate) UV index
  • 7°C sea temperature in April in Grimsby7
    7°C sea temperature

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Grimsby weather in May

Expect daytime maximum temperatures of 15°C in Grimsby, England 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 50 mm of rainfall in the month.

  • 15°C maximum daytime temperature in May in Grimsby15
    15°C max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in May in Grimsby14
    14 days with some rainfall
  • 7°C minimum night-time temperature in May in Grimsby7
    7°C min night temperature
  • 16 hours of daylight per day in May in Grimsby16
    16 hours of daylight per day
  • No heat & humidity in May in Grimsby0
    No heat & humidity
  • 50 mm monthly rainfall in May in Grimsby50
    50 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Grimsby5
    5 (Moderate) UV index
  • 9°C sea temperature in May in Grimsby9
    9°C sea temperature

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Grimsby weather in June

Expect daytime maximum temperatures of 18°C in Grimsby, England in June based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 51 mm of rainfall in the month.

  • 18°C maximum daytime temperature in June in Grimsby18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in June in Grimsby13
    13 days with some rainfall
  • 10°C minimum night-time temperature in June in Grimsby10
    10°C min night temperature
  • 17 hours of daylight per day in June in Grimsby17
    17 hours of daylight per day
  • No heat & humidity in June in Grimsby0
    No heat & humidity
  • 51 mm monthly rainfall in June in Grimsby51
    51 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Grimsby6
    6 (High) UV index
  • 12°C sea temperature in June in Grimsby12
    12°C sea temperature

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Grimsby weather in July

Expect daytime maximum temperatures of 20°C in Grimsby, England in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 51 mm of rainfall in the month.

  • 20°C maximum daytime temperature in July in Grimsby20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in July in Grimsby12
    12 days with some rainfall
  • 12°C minimum night-time temperature in July in Grimsby12
    12°C min night temperature
  • 16 hours of daylight per day in July in Grimsby16
    16 hours of daylight per day
  • No heat & humidity in July in Grimsby0
    No heat & humidity
  • 51 mm monthly rainfall in July in Grimsby51
    51 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Grimsby6
    6 (High) UV index
  • 14°C sea temperature in July in Grimsby14
    14°C sea temperature

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Grimsby weather in August

Expect daytime maximum temperatures of 20°C in Grimsby, England in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 62 mm of rainfall in the month.

  • 20°C maximum daytime temperature in August in Grimsby20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in August in Grimsby13
    13 days with some rainfall
  • 12°C minimum night-time temperature in August in Grimsby12
    12°C min night temperature
  • 15 hours of daylight per day in August in Grimsby15
    15 hours of daylight per day
  • No heat & humidity in August in Grimsby0
    No heat & humidity
  • 62 mm monthly rainfall in August in Grimsby62
    62 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Grimsby5
    5 (Moderate) UV index
  • 15°C sea temperature in August in Grimsby15
    15°C sea temperature

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Grimsby weather in September

Expect daytime maximum temperatures of 18°C in Grimsby, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 53 mm of rainfall in the month.

  • 18°C maximum daytime temperature in September in Grimsby18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in September in Grimsby13
    13 days with some rainfall
  • 10°C minimum night-time temperature in September in Grimsby10
    10°C min night temperature
  • 13 hours of daylight per day in September in Grimsby13
    13 hours of daylight per day
  • No heat & humidity in September in Grimsby0
    No heat & humidity
  • 53 mm monthly rainfall in September in Grimsby53
    53 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Grimsby4
    4 (Moderate) UV index
  • 14°C sea temperature in September in Grimsby14
    14°C sea temperature

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Grimsby weather in October

Expect daytime maximum temperatures of 14°C in Grimsby, England in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 52 mm of rainfall in the month.

  • 14°C maximum daytime temperature in October in Grimsby14
    14°C max day temperature
  • 3 hours of sunshine per day
  • 15 days with some rainfall in October in Grimsby15
    15 days with some rainfall
  • 8°C minimum night-time temperature in October in Grimsby8
    8°C min night temperature
  • 11 hours of daylight per day in October in Grimsby11
    11 hours of daylight per day
  • No heat & humidity in October in Grimsby0
    No heat & humidity
  • 52 mm monthly rainfall in October in Grimsby52
    52 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Grimsby2
    2 (Low) UV index
  • 12°C sea temperature in October in Grimsby12
    12°C sea temperature

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Grimsby weather in November

Expect daytime maximum temperatures of 9°C in Grimsby, England in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 63 mm of rainfall in the month.

  • 9°C maximum daytime temperature in November in Grimsby9
    9°C max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in November in Grimsby18
    18 days with some rainfall
  • 4°C minimum night-time temperature in November in Grimsby4
    4°C min night temperature
  • 9 hours of daylight per day in November in Grimsby9
    9 hours of daylight per day
  • No heat & humidity in November in Grimsby0
    No heat & humidity
  • 63 mm monthly rainfall in November in Grimsby63
    63 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Grimsby1
    1 (Low) UV index
  • 10°C sea temperature in November in Grimsby10
    10°C sea temperature

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Grimsby weather in December

Expect daytime maximum temperatures of 7°C in Grimsby, England in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 18 days with some rainfall and typically 61 mm of rainfall in the month.

  • 7°C maximum daytime temperature in December in Grimsby7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 18 days with some rainfall in December in Grimsby18
    18 days with some rainfall
  • 2°C minimum night-time temperature in December in Grimsby2
    2°C min night temperature
  • 8 hours of daylight per day in December in Grimsby8
    8 hours of daylight per day
  • No heat & humidity in December in Grimsby0
    No heat & humidity
  • 61 mm monthly rainfall in December in Grimsby61
    61 mm of monthly rainfall
  • No UV (maximum) index in December in Grimsby0
    No UV (Maximum) Index UV index
  • 8°C sea temperature in December in Grimsby8
    8°C sea temperature

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More about Grimsby

Grimsby by month

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

Recommended for England

  • Save 8% on spa breaks, spa days & gift vouchers
  • Check out latest offers on over 550 spas across the UK
  • A guaranteed experience to suit your budget & occasion
Show discount codeShow discount code ******SB8

Expires at 23:59 on Thursday 31st Dec 2026 · View all Spabreaks.com offers

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The climate guide for England (Grimsby) 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.

Compare Grimsby weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Grimsby, North East Lincolnshire, England and the UK (London).

Maximum daytime temperature (°C)

Grimsby, North East Lincolnshire, England
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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