Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
20.9 °C
Coldest
6.1 °C
Wettest
22%
Windiest
7.9 m/s
Prevailing
SW
6.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Dover over the whole year is 12°C. August is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 5°C. Dover has no sharply defined rainy season: the chance of rain on a given day runs from 9% in July, the driest month, to 19% in December, the wettest. Winds in Dover are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 5.2 m/s (19 km/h). The prevailing wind is from the SW. The clearest skies in Dover come in August, when the sky is typically 52% covered; December is the cloudiest month, at 74%.
Month by month Dover climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
7°C
5°C
1°C
16%
69%
6.4 m/s
0
0
10
February
8°C
5°C
2°C
15%
68%
6.7 m/s
0
0
19
March
10°C
6°C
4°C
15%
66%
6.2 m/s
1
0
29
April
12°C
7°C
7°C
10%
55%
5.5 m/s
6
0
50
May
15°C
11°C
11°C
10%
58%
5.2 m/s
24
0
75
June
18°C
14°C
15°C
10%
60%
5.3 m/s
53
4
79
July
20°C
16°C
18°C
9%
57%
5.2 m/s
71
7
77
August
21°C
16°C
18°C
10%
52%
5.3 m/s
74
9
75
September
19°C
14°C
16°C
12%
58%
5.2 m/s
56
3
79
October
15°C
11°C
11°C
18%
63%
5.4 m/s
20
0
74
November
10°C
8°C
6°C
18%
68%
6.2 m/s
1
0
41
December
8°C
6°C
3°C
19%
74%
5.8 m/s
0
0
20
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Dover weather by season
Year round, Dover has days of about 7°C at their warmest in January, its coolest month, and 21°C in August, its warmest; the coolest hours of the day run from 5°C to 16°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around December and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Dover weather in winterDecember to February
High 8°CLow 5°CRain 16%
Winter in Dover has typical daily highs of about 8°C and lows of about 5°C, with a 16% chance of rain on a given day.
Dover weather in springMarch to May
High 12°CLow 8°CRain 12%
Spring in Dover has typical daily highs of about 12°C and lows of about 8°C, with a 12% chance of rain on a given day.
Dover weather in summerJune to August
High 20°CLow 15°CRain 10%
Summer in Dover has typical daily highs of about 20°C and lows of about 15°C, with a 10% chance of rain on a given day.
Dover weather in autumnSeptember to November
High 15°CLow 11°CRain 16%
Autumn in Dover has typical daily highs of about 15°C and lows of about 11°C, with a 16% chance of rain on a given day.
When is the rainy season in Dover?
Dover has no sharply defined rainy season: the chance of rain on a given day runs from 9% in July, the driest month, to 19% in December, the wettest.
What time of year is Dover windiest?
Winds in Dover are highest in February, averaging 6.7 m/s (24 km/h), and lightest in May, at 5.2 m/s (19 km/h). The prevailing wind is from the SW.
What is the average temperature in Dover year round?
The average temperature in Dover over the whole year is 12°C. August is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 5°C.