Westbourne weather
The Westbourne weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Westbourne, West Sussex, England in 2026/2027.
Westbourne weather averages
Check the Westbourne 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 Westbourne, West Sussex, England.
Westbourne weather by month
Check the weather for Westbourne, 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.
Westbourne weather in January
The average maximum daytime temperature in Westbourne 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 Westbourne 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 - 93 mm of monthly rainfall
93
On average 93 mm (3.7 inches) of rain normally falls in Westbourne during January with rain falling on 16 days of the month.
Westbourne weather in February
The average maximum daytime temperature in Westbourne 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 Westbourne during February.
- 7°C max day temperature7
- 3 hours of sunshine per day
3 - 13 days with some rainfall
13 - 2°C min night temperature2
- 63 mm of monthly rainfall
63
On average 63 mm (2.5 inches) of rain normally falls in Westbourne during February with rain falling on 13 days of the month.
Westbourne weather in March
The average maximum daytime temperature in Westbourne 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 Westbourne 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
- 69 mm of monthly rainfall69
On average 69 mm (2.7 inches) of rain normally falls in Westbourne during March with rain falling on 15 days of the month.
Westbourne weather in April
The average maximum daytime temperature in Westbourne 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 Westbourne 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 Westbourne during April with rain falling on 12 days of the month.
Westbourne weather in May
The average maximum daytime temperature in Westbourne in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 7 hours of sunshine a day in Westbourne during May.
- 15°C max day temperature
15 - 7 hours of sunshine per day
7 - 12 days with some rainfall12
- 8°C min night temperature8
- 49 mm of monthly rainfall49
On average 49 mm (1.9 inches) of rain normally falls in Westbourne during May with rain falling on 12 days of the month.
Westbourne weather in June
The average maximum daytime temperature in Westbourne 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 Westbourne during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day7
- 11 days with some rainfall11
- 11°C min night temperature11
- 53 mm of monthly rainfall53
On average 53 mm (2.1 inches) of rain normally falls in Westbourne during June with rain falling on 11 days of the month.
Westbourne weather in July
The average maximum daytime temperature in Westbourne 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 Westbourne during July.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 9 days with some rainfall
9 - 13°C min night temperature13
- 45 mm of monthly rainfall45
On average 45 mm (1.8 inches) of rain normally falls in Westbourne during July with rain falling on 9 days of the month.
Westbourne weather in August
The average maximum daytime temperature in Westbourne in August 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 Westbourne during August.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 10 days with some rainfall10
- 13°C min night temperature13
- 55 mm of monthly rainfall55
On average 55 mm (2.2 inches) of rain normally falls in Westbourne during August with rain falling on 10 days of the month.
Westbourne weather in September
The average maximum daytime temperature in Westbourne in September 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 5 hours of sunshine a day in Westbourne during September.
- 18°C max day temperature18
- 5 hours of sunshine per day
5 - 12 days with some rainfall12
- 11°C min night temperature11
- 76 mm of monthly rainfall76
On average 76 mm (3 inches) of rain normally falls in Westbourne during September with rain falling on 12 days of the month.
Westbourne weather in October
The average maximum daytime temperature in Westbourne in October is a comfortable 14°C (57°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 Westbourne during October.
- 14°C max day temperature14
- 4 hours of sunshine per day4
- 14 days with some rainfall14
- 9°C min night temperature9
- 93 mm of monthly rainfall93
On average 93 mm (3.7 inches) of rain normally falls in Westbourne during October with rain falling on 14 days of the month.
Westbourne weather in November
The average maximum daytime temperature in Westbourne in November is a cool 11°C (52°F), while the average minimum night-time temperature is a cold 5°C (41°F). You can expect on average 3 hours of sunshine a day in Westbourne during November.
- 11°C max day temperature11
- 3 hours of sunshine per day3
- 15 days with some rainfall15
- 5°C min night temperature5
- 97 mm of monthly rainfall97
On average 97 mm (3.8 inches) of rain normally falls in Westbourne during November with rain falling on 15 days of the month.
Westbourne weather in December
The average maximum daytime temperature in Westbourne 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 Westbourne during December.
- 8°C max day temperature8
- 2 hours of sunshine per day2
- 16 days with some rainfall16
- 4°C min night temperature4
- 93 mm of monthly rainfall93
On average 93 mm (3.7 inches) of rain normally falls in Westbourne during December with rain falling on 16 days of the month.