Saint Stephen weather
The Saint Stephen weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Saint Stephen, Cornwall, England in 2026/2027.
Saint Stephen weather averages
Check the Saint Stephen 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 Saint Stephen, Cornwall, England.
Saint Stephen weather by month
Check the weather for Saint Stephen, 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.
Saint Stephen weather in January
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen 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 - 141 mm of monthly rainfall
141
On average 141 mm (5.6 inches) of rain normally falls in Saint Stephen during January with rain falling on 20 days of the month.
Saint Stephen weather in February
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen 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
- 103 mm of monthly rainfall
103
On average 103 mm (4.1 inches) of rain normally falls in Saint Stephen during February with rain falling on 17 days of the month.
Saint Stephen weather in March
The average maximum daytime temperature in Saint Stephen in March 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 4 hours of sunshine a day in Saint Stephen during March.
- 10°C max day temperature10
- 4 hours of sunshine per day
4 - 17 days with some rainfall17
- 5°C min night temperature5
- 96 mm of monthly rainfall
96
On average 96 mm (3.8 inches) of rain normally falls in Saint Stephen during March with rain falling on 17 days of the month.
Saint Stephen weather in April
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen during April.
- 12°C max day temperature
12 - 6 hours of sunshine per day
6 - 13 days with some rainfall
13 - 6°C min night temperature6
- 67 mm of monthly rainfall
67
On average 67 mm (2.6 inches) of rain normally falls in Saint Stephen during April with rain falling on 13 days of the month.
Saint Stephen weather in May
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen during May.
- 15°C max day temperature
15 - 7 hours of sunshine per day
7 - 13 days with some rainfall13
- 8°C min night temperature8
- 67 mm of monthly rainfall67
On average 67 mm (2.6 inches) of rain normally falls in Saint Stephen during May with rain falling on 13 days of the month.
Saint Stephen weather in June
The average maximum daytime temperature in Saint Stephen in June is a comfortable 17°C (63°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 Saint Stephen during June.
- 17°C max day temperature17
- 7 hours of sunshine per day7
- 12 days with some rainfall
12 - 11°C min night temperature11
- 71 mm of monthly rainfall71
On average 71 mm (2.8 inches) of rain normally falls in Saint Stephen during June with rain falling on 12 days of the month.
Saint Stephen weather in July
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen during July.
- 20°C max day temperature
20 - 7 hours of sunshine per day7
- 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 Saint Stephen during July with rain falling on 12 days of the month.
Saint Stephen weather in August
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen during August.
- 20°C max day temperature20
- 6 hours of sunshine per day6
- 13 days with some rainfall13
- 13°C min night temperature13
- 85 mm of monthly rainfall85
On average 85 mm (3.3 inches) of rain normally falls in Saint Stephen during August with rain falling on 13 days of the month.
Saint Stephen weather in September
The average maximum daytime temperature in Saint Stephen in September is a comfortable 17°C (63°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 Saint Stephen during September.
- 17°C max day temperature17
- 5 hours of sunshine per day
5 - 15 days with some rainfall15
- 11°C min night temperature11
- 94 mm of monthly rainfall94
On average 94 mm (3.7 inches) of rain normally falls in Saint Stephen during September with rain falling on 15 days of the month.
Saint Stephen weather in October
The average maximum daytime temperature in Saint Stephen 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 3 hours of sunshine a day in Saint Stephen during October.
- 14°C max day temperature14
- 3 hours of sunshine per day3
- 18 days with some rainfall18
- 9°C min night temperature9
- 121 mm of monthly rainfall
121
On average 121 mm (4.8 inches) of rain normally falls in Saint Stephen during October with rain falling on 18 days of the month.
Saint Stephen weather in November
The average maximum daytime temperature in Saint Stephen 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 2 hours of sunshine a day in Saint Stephen during November.
- 11°C max day temperature11
- 2 hours of sunshine per day2
- 19 days with some rainfall19
- 6°C min night temperature6
- 134 mm of monthly rainfall134
On average 134 mm (5.3 inches) of rain normally falls in Saint Stephen during November with rain falling on 19 days of the month.
Saint Stephen weather in December
The average maximum daytime temperature in Saint Stephen 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 Saint Stephen during December.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 20 days with some rainfall20
- 5°C min night temperature5
- 144 mm of monthly rainfall144
On average 144 mm (5.7 inches) of rain normally falls in Saint Stephen during December with rain falling on 20 days of the month.