Thornton Heath weather
The Thornton Heath weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Thornton Heath, Surrey, England in 2026/2027.
Thornton Heath weather averages
Check the Thornton Heath 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 Thornton Heath, Surrey, England.
Thornton Heath weather by month
Check the weather for Thornton Heath, Surrey, 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.
Thornton Heath weather in January
The average maximum daytime temperature in Thornton Heath in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Thornton Heath during January.
- 7°C max day temperature
7 - 2 hours of sunshine per day
2 - 16 days with some rainfall
16 - 1°C min night temperature
1 - 80 mm of monthly rainfall
80
On average 80 mm (3.1 inches) of rain normally falls in Thornton Heath during January with rain falling on 16 days of the month.
Thornton Heath weather in February
The average maximum daytime temperature in Thornton Heath in February is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 1°C (34°F). You can expect on average 2 hours of sunshine a day in Thornton Heath during February.
- 7°C max day temperature7
- 2 hours of sunshine per day2
- 13 days with some rainfall
13 - 1°C min night temperature1
- 50 mm of monthly rainfall
50
On average 50 mm (2 inches) of rain normally falls in Thornton Heath during February with rain falling on 13 days of the month.
Thornton Heath weather in March
The average maximum daytime temperature in Thornton Heath in March is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 4 hours of sunshine a day in Thornton Heath during March.
- 10°C max day temperature
10 - 4 hours of sunshine per day
4 - 15 days with some rainfall15
- 2°C min night temperature2
- 58 mm of monthly rainfall58
On average 58 mm (2.3 inches) of rain normally falls in Thornton Heath during March with rain falling on 15 days of the month.
Thornton Heath weather in April
The average maximum daytime temperature in Thornton Heath in April is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 5 hours of sunshine a day in Thornton Heath during April.
- 12°C max day temperature
12 - 5 hours of sunshine per day
5 - 13 days with some rainfall13
- 4°C min night temperature4
- 53 mm of monthly rainfall53
On average 53 mm (2.1 inches) of rain normally falls in Thornton Heath during April with rain falling on 13 days of the month.
Thornton Heath weather in May
The average maximum daytime temperature in Thornton Heath in May is a comfortable 16°C (61°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 6 hours of sunshine a day in Thornton Heath during May.
- 16°C max day temperature
16 - 6 hours of sunshine per day
6 - 12 days with some rainfall
12 - 6°C min night temperature6
- 57 mm of monthly rainfall57
On average 57 mm (2.2 inches) of rain normally falls in Thornton Heath during May with rain falling on 12 days of the month.
Thornton Heath weather in June
The average maximum daytime temperature in Thornton Heath in June is a comfortable 19°C (66°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 Thornton Heath during June.
- 19°C max day temperature
19 - 7 hours of sunshine per day
7 - 11 days with some rainfall11
- 9°C min night temperature9
- 60 mm of monthly rainfall60
On average 60 mm (2.4 inches) of rain normally falls in Thornton Heath during June with rain falling on 11 days of the month.
Thornton Heath weather in July
The average maximum daytime temperature in Thornton Heath in July is a warm 22°C (72°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Thornton Heath during July.
- 22°C max day temperature
22 - 6 hours of sunshine per day6
- 10 days with some rainfall10
- 12°C min night temperature12
- 41 mm of monthly rainfall41
On average 41 mm (1.6 inches) of rain normally falls in Thornton Heath during July with rain falling on 10 days of the month.
Thornton Heath weather in August
The average maximum daytime temperature in Thornton Heath in August is a warm 22°C (72°F), while the average minimum night-time temperature is a cool 11°C (52°F). You can expect on average 6 hours of sunshine a day in Thornton Heath during August.
- 22°C max day temperature22
- 6 hours of sunshine per day6
- 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 Thornton Heath during August with rain falling on 11 days of the month.
Thornton Heath weather in September
The average maximum daytime temperature in Thornton Heath in September is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 9°C (48°F). You can expect on average 5 hours of sunshine a day in Thornton Heath during September.
- 18°C max day temperature18
- 5 hours of sunshine per day5
- 12 days with some rainfall12
- 9°C min night temperature9
- 72 mm of monthly rainfall72
On average 72 mm (2.8 inches) of rain normally falls in Thornton Heath during September with rain falling on 12 days of the month.
Thornton Heath weather in October
The average maximum daytime temperature in Thornton Heath in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 3 hours of sunshine a day in Thornton Heath during October.
- 14°C max day temperature14
- 3 hours of sunshine per day
3 - 14 days with some rainfall14
- 7°C min night temperature7
- 79 mm of monthly rainfall79
On average 79 mm (3.1 inches) of rain normally falls in Thornton Heath during October with rain falling on 14 days of the month.
Thornton Heath weather in November
The average maximum daytime temperature in Thornton Heath in November is a cool 10°C (50°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 Thornton Heath during November.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 15 days with some rainfall15
- 3°C min night temperature3
- 74 mm of monthly rainfall74
On average 74 mm (2.9 inches) of rain normally falls in Thornton Heath during November with rain falling on 15 days of the month.
Thornton Heath weather in December
The average maximum daytime temperature in Thornton Heath in December is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 1 hours of sunshine a day in Thornton Heath during December.
- 8°C max day temperature8
- 1 hour of sunshine per day
1 - 15 days with some rainfall15
- 2°C min night temperature2
- 79 mm of monthly rainfall79
On average 79 mm (3.1 inches) of rain normally falls in Thornton Heath during December with rain falling on 15 days of the month.