Grantham weather by month

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

Temperature
Rainfall
Sunshine & UV index

Temperature in Grantham (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	6	6	9	12	16	19	21	21	18	14	9	7
Min temperature (night-time)	0	0	2	3	6	9	11	11	9	6	3	1
Heat & Humidity	0	0	0	0	0	0	0	0	0	0	0	0

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

Sunshine & UV index in Grantham

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	2	2	3	4	6	7	6	5	5	3	2	2
Daily hours of daylight	8	10	12	14	16	17	16	15	13	11	9	8
UV Index (Maximum)	1	1	2	4	5	6	6	5	4	2	1	0

Rainfall in Grantham

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	17	14	15	14	14	12	11	13	12	14	15	15
Average monthly rainfall (mm)	51	41	49	51	53	54	49	62	49	47	55	54

More about Grantham

Grantham by month

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

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The climate guide for England (Grantham) 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 Grantham?

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

Grantham weather in January

Expect daytime maximum temperatures of 6°C in Grantham, England in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 17 days with some rainfall and typically 51 mm of rainfall in the month.

6
6°C max day temperature
2
2 hours of sunshine per day
17
17 days with some rainfall
0
0°C min night temperature
8
8 hours of daylight per day
0
No heat & humidity
51
51 mm of monthly rainfall
1
1 (Low) UV index

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Grantham weather in February

Expect daytime maximum temperatures of 6°C in Grantham, 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 41 mm of rainfall in the month.

6
6°C max day temperature
2
2 hours of sunshine per day
14
14 days with some rainfall
0
0°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
41
41 mm of monthly rainfall
1
1 (Low) UV index

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Grantham weather in March

Expect daytime maximum temperatures of 9°C in Grantham, England in March based on long-term weather averages. There are 3 hours of sunshine per day on average with 15 days with some rainfall and typically 49 mm of rainfall in the month.

9
9°C max day temperature
3
3 hours of sunshine per day
15
15 days with some rainfall
2
2°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
49
49 mm of monthly rainfall
2
2 (Low) UV index

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Grantham weather in April

Expect daytime maximum temperatures of 12°C in Grantham, England in April based on long-term weather averages. There are 4 hours of sunshine per day on average with 14 days with some rainfall and typically 51 mm of rainfall in the month.

12
12°C max day temperature
4
4 hours of sunshine per day
14
14 days with some rainfall
3
3°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
51
51 mm of monthly rainfall
4
4 (Moderate) UV index

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Grantham weather in May

Expect daytime maximum temperatures of 16°C in Grantham, 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 53 mm of rainfall in the month.

16
16°C max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
6
6°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
53
53 mm of monthly rainfall
5
5 (Moderate) UV index

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Grantham weather in June

Expect daytime maximum temperatures of 19°C in Grantham, England in June based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 54 mm of rainfall in the month.

19
19°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
9
9°C min night temperature
17
17 hours of daylight per day
0
No heat & humidity
54
54 mm of monthly rainfall
6
6 (High) UV index

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Grantham weather in July

Expect daytime maximum temperatures of 21°C in Grantham, England in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 49 mm of rainfall in the month.

21
21°C max day temperature
6
6 hours of sunshine per day
11
11 days with some rainfall
11
11°C min night temperature
16
16 hours of daylight per day
0
No heat & humidity
49
49 mm of monthly rainfall
6
6 (High) UV index

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Grantham weather in August

Expect daytime maximum temperatures of 21°C in Grantham, England in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 62 mm of rainfall in the month.

21
21°C max day temperature
5
5 hours of sunshine per day
13
13 days with some rainfall
11
11°C min night temperature
15
15 hours of daylight per day
0
No heat & humidity
62
62 mm of monthly rainfall
5
5 (Moderate) UV index

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Grantham weather in September

Expect daytime maximum temperatures of 18°C in Grantham, England in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 49 mm of rainfall in the month.

18
18°C max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
9
9°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
49
49 mm of monthly rainfall
4
4 (Moderate) UV index

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Grantham weather in October

Expect daytime maximum temperatures of 14°C in Grantham, England in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 47 mm of rainfall in the month.

14
14°C max day temperature
3
3 hours of sunshine per day
14
14 days with some rainfall
6
6°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
47
47 mm of monthly rainfall
2
2 (Low) UV index

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Grantham weather in November

Expect daytime maximum temperatures of 9°C in Grantham, England in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 55 mm of rainfall in the month.

9
9°C max day temperature
2
2 hours of sunshine per day
15
15 days with some rainfall
3
3°C min night temperature
9
9 hours of daylight per day
0
No heat & humidity
55
55 mm of monthly rainfall
1
1 (Low) UV index

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Grantham weather in December

Expect daytime maximum temperatures of 7°C in Grantham, England in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 54 mm of rainfall in the month.