Ilminster weather
The Ilminster weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Ilminster, Somerset, England in 2026/2027.
Ilminster weather averages
Check the Ilminster 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 Ilminster, Somerset, England.
Ilminster weather by month
Check the weather for Ilminster, Somerset, 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.
Ilminster weather in January
The average maximum daytime temperature in Ilminster in January 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 2 hours of sunshine a day in Ilminster during January.
- 8°C max day temperature
8 - 2 hours of sunshine per day
2 - 18 days with some rainfall
18 - 2°C min night temperature
2 - 93 mm of monthly rainfall
93
On average 93 mm (3.7 inches) of rain normally falls in Ilminster during January with rain falling on 18 days of the month.
Ilminster weather in February
The average maximum daytime temperature in Ilminster in February 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 3 hours of sunshine a day in Ilminster during February.
- 8°C max day temperature8
- 3 hours of sunshine per day
3 - 15 days with some rainfall
15 - 2°C min night temperature2
- 73 mm of monthly rainfall
73
On average 73 mm (2.9 inches) of rain normally falls in Ilminster during February with rain falling on 15 days of the month.
Ilminster weather in March
The average maximum daytime temperature in Ilminster in March is a cool 10°C (50°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 Ilminster during March.
- 10°C max day temperature10
- 4 hours of sunshine per day
4 - 16 days with some rainfall16
- 4°C min night temperature
4 - 69 mm of monthly rainfall69
On average 69 mm (2.7 inches) of rain normally falls in Ilminster during March with rain falling on 16 days of the month.
Ilminster weather in April
The average maximum daytime temperature in Ilminster 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 Ilminster 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
- 55 mm of monthly rainfall
55
On average 55 mm (2.2 inches) of rain normally falls in Ilminster during April with rain falling on 13 days of the month.
Ilminster weather in May
The average maximum daytime temperature in Ilminster in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 6 hours of sunshine a day in Ilminster during May.
- 15°C max day temperature
15 - 6 hours of sunshine per day
6 - 13 days with some rainfall13
- 7°C min night temperature7
- 56 mm of monthly rainfall56
On average 56 mm (2.2 inches) of rain normally falls in Ilminster during May with rain falling on 13 days of the month.
Ilminster weather in June
The average maximum daytime temperature in Ilminster in June is a comfortable 18°C (64°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 7 hours of sunshine a day in Ilminster during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day
7 - 11 days with some rainfall
11 - 10°C min night temperature10
- 55 mm of monthly rainfall55
On average 55 mm (2.2 inches) of rain normally falls in Ilminster during June with rain falling on 11 days of the month.
Ilminster weather in July
The average maximum daytime temperature in Ilminster in July is a comfortable 20°C (68°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 7 hours of sunshine a day in Ilminster during July.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 10 days with some rainfall10
- 12°C min night temperature12
- 46 mm of monthly rainfall46
On average 46 mm (1.8 inches) of rain normally falls in Ilminster during July with rain falling on 10 days of the month.
Ilminster weather in August
The average maximum daytime temperature in Ilminster 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 6 hours of sunshine a day in Ilminster during August.
- 20°C max day temperature20
- 6 hours of sunshine per day6
- 12 days with some rainfall12
- 13°C min night temperature13
- 66 mm of monthly rainfall66
On average 66 mm (2.6 inches) of rain normally falls in Ilminster during August with rain falling on 12 days of the month.
Ilminster weather in September
The average maximum daytime temperature in Ilminster 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 Ilminster during September.
- 18°C max day temperature18
- 5 hours of sunshine per day5
- 13 days with some rainfall13
- 11°C min night temperature11
- 71 mm of monthly rainfall71
On average 71 mm (2.8 inches) of rain normally falls in Ilminster during September with rain falling on 13 days of the month.
Ilminster weather in October
The average maximum daytime temperature in Ilminster in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 3 hours of sunshine a day in Ilminster during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 16 days with some rainfall16
- 8°C min night temperature8
- 88 mm of monthly rainfall88
On average 88 mm (3.5 inches) of rain normally falls in Ilminster during October with rain falling on 16 days of the month.
Ilminster weather in November
The average maximum daytime temperature in Ilminster 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 2 hours of sunshine a day in Ilminster during November.
- 11°C max day temperature11
- 2 hours of sunshine per day2
- 17 days with some rainfall17
- 5°C min night temperature5
- 91 mm of monthly rainfall91
On average 91 mm (3.6 inches) of rain normally falls in Ilminster during November with rain falling on 17 days of the month.
Ilminster weather in December
The average maximum daytime temperature in Ilminster in December 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 2 hours of sunshine a day in Ilminster during December.
- 9°C max day temperature9
- 2 hours of sunshine per day2
- 18 days with some rainfall18
- 4°C min night temperature4
- 101 mm of monthly rainfall
101
On average 101 mm (4 inches) of rain normally falls in Ilminster during December with rain falling on 18 days of the month.