Sennen weather
The Sennen weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Sennen, Cornwall, England in 2026/2027.
Sennen weather averages
Check the Sennen 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 Sennen, Cornwall, England.
Sennen weather by month
Check the weather for Sennen, Cornwall, 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.
Sennen weather in January
The average maximum daytime temperature in Sennen in January 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 Sennen during January.
- 9°C max day temperature
9 - 2 hours of sunshine per day
2 - 20 days with some rainfall
20 - 4°C min night temperature
4 - 160 mm of monthly rainfall
160
On average 160 mm (6.3 inches) of rain normally falls in Sennen during January with rain falling on 20 days of the month.
Sennen weather in February
The average maximum daytime temperature in Sennen in February 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 3 hours of sunshine a day in Sennen during February.
- 9°C max day temperature9
- 3 hours of sunshine per day
3 - 17 days with some rainfall
17 - 4°C min night temperature4
- 119 mm of monthly rainfall
119
On average 119 mm (4.7 inches) of rain normally falls in Sennen during February with rain falling on 17 days of the month.
Sennen weather in March
The average maximum daytime temperature in Sennen in March 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 4 hours of sunshine a day in Sennen during March.
- 11°C max day temperature11
- 4 hours of sunshine per day
4 - 17 days with some rainfall17
- 5°C min night temperature5
- 106 mm of monthly rainfall106
On average 106 mm (4.2 inches) of rain normally falls in Sennen during March with rain falling on 17 days of the month.
Sennen weather in April
The average maximum daytime temperature in Sennen in April is a cool 12°C (54°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 Sennen during April.
- 12°C max day temperature
12 - 6 hours of sunshine per day
6 - 15 days with some rainfall
15 - 6°C min night temperature6
- 81 mm of monthly rainfall
81
On average 81 mm (3.2 inches) of rain normally falls in Sennen during April with rain falling on 15 days of the month.
Sennen weather in May
The average maximum daytime temperature in Sennen 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 Sennen during May.
- 15°C max day temperature
15 - 7 hours of sunshine per day
7 - 14 days with some rainfall14
- 8°C min night temperature8
- 83 mm of monthly rainfall83
On average 83 mm (3.3 inches) of rain normally falls in Sennen during May with rain falling on 14 days of the month.
Sennen weather in June
The average maximum daytime temperature in Sennen 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 Sennen during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day7
- 13 days with some rainfall13
- 11°C min night temperature11
- 75 mm of monthly rainfall
75
On average 75 mm (3 inches) of rain normally falls in Sennen during June with rain falling on 13 days of the month.
Sennen weather in July
The average maximum daytime temperature in Sennen 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 Sennen during July.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 12 days with some rainfall
12 - 13°C min night temperature13
- 66 mm of monthly rainfall66
On average 66 mm (2.6 inches) of rain normally falls in Sennen during July with rain falling on 12 days of the month.
Sennen weather in August
The average maximum daytime temperature in Sennen 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 Sennen during August.
- 20°C max day temperature20
- 6 hours of sunshine per day6
- 14 days with some rainfall14
- 13°C min night temperature13
- 92 mm of monthly rainfall92
On average 92 mm (3.6 inches) of rain normally falls in Sennen during August with rain falling on 14 days of the month.
Sennen weather in September
The average maximum daytime temperature in Sennen 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 Sennen during September.
- 18°C max day temperature18
- 5 hours of sunshine per day
5 - 15 days with some rainfall15
- 11°C min night temperature11
- 110 mm of monthly rainfall110
On average 110 mm (4.3 inches) of rain normally falls in Sennen during September with rain falling on 15 days of the month.
Sennen weather in October
The average maximum daytime temperature in Sennen 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 3 hours of sunshine a day in Sennen during October.
- 15°C max day temperature15
- 3 hours of sunshine per day3
- 18 days with some rainfall18
- 9°C min night temperature9
- 145 mm of monthly rainfall145
On average 145 mm (5.7 inches) of rain normally falls in Sennen during October with rain falling on 18 days of the month.
Sennen weather in November
The average maximum daytime temperature in Sennen in November is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 6°C (43°F). You can expect on average 2 hours of sunshine a day in Sennen during November.
- 12°C max day temperature12
- 2 hours of sunshine per day2
- 19 days with some rainfall19
- 6°C min night temperature6
- 150 mm of monthly rainfall150
On average 150 mm (5.9 inches) of rain normally falls in Sennen during November with rain falling on 19 days of the month.
Sennen weather in December
The average maximum daytime temperature in Sennen in December is a cool 10°C (50°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 Sennen during December.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 20 days with some rainfall20
- 5°C min night temperature5
- 171 mm of monthly rainfall
171
On average 171 mm (6.7 inches) of rain normally falls in Sennen during December with rain falling on 20 days of the month.