West Grinstead weather
The West Grinstead weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in West Grinstead, West Sussex, England in 2026/2027.
West Grinstead weather averages
Check the West Grinstead weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for West Grinstead, West Sussex, England.
West Grinstead weather by month
Check the weather for West Grinstead, West Sussex, England for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.
West Grinstead weather in January
The average maximum daytime temperature in West Grinstead in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in West Grinstead during January.
- 7°C max day temperature
7 - 2 hours of sunshine per day
2 - 16 days with some rainfall
16 - 3°C min night temperature
3 - 99 mm of monthly rainfall
99
On average 99 mm (3.9 inches) of rain normally falls in West Grinstead during January with rain falling on 16 days of the month.
West Grinstead weather in February
The average maximum daytime temperature in West Grinstead in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 3 hours of sunshine a day in West Grinstead during February.
- 7°C max day temperature7
- 3 hours of sunshine per day
3 - 14 days with some rainfall
14 - 2°C min night temperature2
- 61 mm of monthly rainfall
61
On average 61 mm (2.4 inches) of rain normally falls in West Grinstead during February with rain falling on 14 days of the month.
West Grinstead weather in March
The average maximum daytime temperature in West Grinstead in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 4 hours of sunshine a day in West Grinstead during March.
- 9°C max day temperature
9 - 4 hours of sunshine per day
4 - 15 days with some rainfall15
- 4°C min night temperature4
- 67 mm of monthly rainfall67
On average 67 mm (2.6 inches) of rain normally falls in West Grinstead during March with rain falling on 15 days of the month.
West Grinstead weather in April
The average maximum daytime temperature in West Grinstead in April is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 6 hours of sunshine a day in West Grinstead during April.
- 12°C max day temperature
12 - 6 hours of sunshine per day
6 - 12 days with some rainfall
12 - 5°C min night temperature5
- 57 mm of monthly rainfall
57
On average 57 mm (2.2 inches) of rain normally falls in West Grinstead during April with rain falling on 12 days of the month.
West Grinstead weather in May
The average maximum daytime temperature in West Grinstead in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 7 hours of sunshine a day in West Grinstead during May.
- 15°C max day temperature
15 - 7 hours of sunshine per day
7 - 12 days with some rainfall12
- 9°C min night temperature9
- 52 mm of monthly rainfall52
On average 52 mm (2 inches) of rain normally falls in West Grinstead during May with rain falling on 12 days of the month.
West Grinstead weather in June
The average maximum daytime temperature in West Grinstead in June is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 7 hours of sunshine a day in West Grinstead during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day7
- 11 days with some rainfall11
- 11°C min night temperature11
- 63 mm of monthly rainfall63
On average 63 mm (2.5 inches) of rain normally falls in West Grinstead during June with rain falling on 11 days of the month.
West Grinstead weather in July
The average maximum daytime temperature in West Grinstead in July is a comfortable 20°C (68°F), while the average minimum night-time temperature is a cool 13°C (55°F). You can expect on average 7 hours of sunshine a day in West Grinstead during July.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 10 days with some rainfall10
- 13°C min night temperature13
- 43 mm of monthly rainfall43
On average 43 mm (1.7 inches) of rain normally falls in West Grinstead during July with rain falling on 10 days of the month.
West Grinstead weather in August
The average maximum daytime temperature in West Grinstead in August is a comfortable 21°C (70°F), while the average minimum night-time temperature is a comfortable 14°C (57°F). You can expect on average 7 hours of sunshine a day in West Grinstead during August.
- 21°C max day temperature21
- 7 hours of sunshine per day7
- 10 days with some rainfall10
- 14°C min night temperature14
- 55 mm of monthly rainfall55
On average 55 mm (2.2 inches) of rain normally falls in West Grinstead during August with rain falling on 10 days of the month.
West Grinstead weather in September
The average maximum daytime temperature in West Grinstead in September is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 5 hours of sunshine a day in West Grinstead during September.
- 18°C max day temperature18
- 5 hours of sunshine per day
5 - 12 days with some rainfall12
- 12°C min night temperature12
- 84 mm of monthly rainfall84
On average 84 mm (3.3 inches) of rain normally falls in West Grinstead during September with rain falling on 12 days of the month.
West Grinstead weather in October
The average maximum daytime temperature in West Grinstead in October is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 4 hours of sunshine a day in West Grinstead during October.
- 15°C max day temperature15
- 4 hours of sunshine per day4
- 14 days with some rainfall14
- 9°C min night temperature9
- 103 mm of monthly rainfall
103
On average 103 mm (4.1 inches) of rain normally falls in West Grinstead during October with rain falling on 14 days of the month.
West Grinstead weather in November
The average maximum daytime temperature in West Grinstead in November is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 3 hours of sunshine a day in West Grinstead during November.
- 11°C max day temperature11
- 3 hours of sunshine per day3
- 15 days with some rainfall15
- 6°C min night temperature6
- 102 mm of monthly rainfall102
On average 102 mm (4 inches) of rain normally falls in West Grinstead during November with rain falling on 15 days of the month.
West Grinstead weather in December
The average maximum daytime temperature in West Grinstead in December is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in West Grinstead during December.
- 8°C max day temperature8
- 2 hours of sunshine per day2
- 16 days with some rainfall16
- 4°C min night temperature4
- 97 mm of monthly rainfall97
On average 97 mm (3.8 inches) of rain normally falls in West Grinstead during December with rain falling on 16 days of the month.