Dartmouth weather
The Dartmouth weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Dartmouth, Devon, England in 2026/2027.
Dartmouth weather averages
Check the Dartmouth 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 Dartmouth, Devon, England.
Dartmouth weather by month
Check the weather for Dartmouth, Devon, 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.
Dartmouth weather in January
The average maximum daytime temperature in Dartmouth 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 Dartmouth during January.
- 9°C max day temperature
9 - 2 hours of sunshine per day
2 - 18 days with some rainfall
18 - 4°C min night temperature
4 - 143 mm of monthly rainfall
143
On average 143 mm (5.6 inches) of rain normally falls in Dartmouth during January with rain falling on 18 days of the month.
Dartmouth weather in February
The average maximum daytime temperature in Dartmouth 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 Dartmouth during February.
- 9°C max day temperature9
- 3 hours of sunshine per day
3 - 16 days with some rainfall16
- 4°C min night temperature4
- 120 mm of monthly rainfall
120
On average 120 mm (4.7 inches) of rain normally falls in Dartmouth during February with rain falling on 16 days of the month.
Dartmouth weather in March
The average maximum daytime temperature in Dartmouth 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 Dartmouth during March.
- 10°C max day temperature10
- 4 hours of sunshine per day
4 - 16 days with some rainfall16
- 4°C min night temperature4
- 101 mm of monthly rainfall101
On average 101 mm (4 inches) of rain normally falls in Dartmouth during March with rain falling on 16 days of the month.
Dartmouth weather in April
The average maximum daytime temperature in Dartmouth 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 Dartmouth during April.
- 12°C max day temperature
12 - 6 hours of sunshine per day
6 - 13 days with some rainfall
13 - 5°C min night temperature5
- 71 mm of monthly rainfall
71
On average 71 mm (2.8 inches) of rain normally falls in Dartmouth during April with rain falling on 13 days of the month.
Dartmouth weather in May
The average maximum daytime temperature in Dartmouth 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 Dartmouth 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
- 70 mm of monthly rainfall70
On average 70 mm (2.8 inches) of rain normally falls in Dartmouth during May with rain falling on 13 days of the month.
Dartmouth weather in June
The average maximum daytime temperature in Dartmouth 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 Dartmouth during June.
- 18°C max day temperature
18 - 7 hours of sunshine per day7
- 11 days with some rainfall
11 - 11°C min night temperature11
- 71 mm of monthly rainfall71
On average 71 mm (2.8 inches) of rain normally falls in Dartmouth during June with rain falling on 11 days of the month.
Dartmouth weather in July
The average maximum daytime temperature in Dartmouth 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 Dartmouth during July.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 10 days with some rainfall10
- 13°C min night temperature13
- 58 mm of monthly rainfall
58
On average 58 mm (2.3 inches) of rain normally falls in Dartmouth during July with rain falling on 10 days of the month.
Dartmouth weather in August
The average maximum daytime temperature in Dartmouth 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 Dartmouth during August.
- 20°C max day temperature20
- 7 hours of sunshine per day7
- 12 days with some rainfall12
- 13°C min night temperature13
- 81 mm of monthly rainfall
81
On average 81 mm (3.2 inches) of rain normally falls in Dartmouth during August with rain falling on 12 days of the month.
Dartmouth weather in September
The average maximum daytime temperature in Dartmouth 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 Dartmouth during September.
- 18°C max day temperature18
- 5 hours of sunshine per day
5 - 13 days with some rainfall13
- 11°C min night temperature11
- 89 mm of monthly rainfall89
On average 89 mm (3.5 inches) of rain normally falls in Dartmouth during September with rain falling on 13 days of the month.
Dartmouth weather in October
The average maximum daytime temperature in Dartmouth 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 Dartmouth during October.
- 15°C max day temperature15
- 3 hours of sunshine per day3
- 16 days with some rainfall16
- 9°C min night temperature9
- 121 mm of monthly rainfall
121
On average 121 mm (4.8 inches) of rain normally falls in Dartmouth during October with rain falling on 16 days of the month.
Dartmouth weather in November
The average maximum daytime temperature in Dartmouth 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 3 hours of sunshine a day in Dartmouth during November.
- 11°C max day temperature11
- 3 hours of sunshine per day3
- 18 days with some rainfall18
- 6°C min night temperature6
- 126 mm of monthly rainfall126
On average 126 mm (5 inches) of rain normally falls in Dartmouth during November with rain falling on 18 days of the month.
Dartmouth weather in December
The average maximum daytime temperature in Dartmouth 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 Dartmouth during December.
- 10°C max day temperature10
- 2 hours of sunshine per day2
- 18 days with some rainfall18
- 5°C min night temperature5
- 156 mm of monthly rainfall156
On average 156 mm (6.1 inches) of rain normally falls in Dartmouth during December with rain falling on 18 days of the month.