Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
19.6 °C
Coldest
7.5 °C
Wettest
30%
Windiest
8.2 m/s
Prevailing
SW
6.7 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 Weymouth over the whole year is 12°C. August is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 6°C. Weymouth has no sharply defined rainy season: the chance of rain on a given day runs from 13% in July, the driest month, to 27% in December, the wettest. Winds in Weymouth are highest in February, averaging 7.5 m/s (27 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 Weymouth come in July, when the sky is typically 57% covered; December is the cloudiest month, at 73%.
Month by month Weymouth 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
8°C
6°C
1°C
26%
70%
7.1 m/s
0
0
11
February
8°C
6°C
2°C
23%
68%
7.5 m/s
0
0
17
March
9°C
7°C
3°C
23%
69%
6.8 m/s
0
0
26
April
12°C
8°C
6°C
18%
60%
5.7 m/s
3
0
47
May
15°C
11°C
11°C
17%
58%
5.2 m/s
18
0
75
June
17°C
14°C
14°C
16%
58%
5.2 m/s
48
2
83
July
19°C
16°C
17°C
13%
57%
5.2 m/s
66
4
80
August
19°C
16°C
17°C
16%
58%
5.6 m/s
67
3
80
September
18°C
14°C
14°C
18%
63%
5.9 m/s
49
1
78
October
15°C
12°C
10°C
26%
68%
6.7 m/s
14
0
68
November
11°C
9°C
5°C
25%
70%
7.2 m/s
0
0
36
December
9°C
8°C
3°C
27%
73%
7.4 m/s
0
0
22
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 Weymouth weather by season
Year round, Weymouth has days of about 8°C at their warmest in January, its coolest month, and 19°C in August, its warmest; the coolest hours of the day run from 6°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.
Weymouth weather in winterDecember to February
High 8°CLow 7°CRain 25%
Winter in Weymouth has typical daily highs of about 8°C and lows of about 7°C, with a 25% chance of rain on a given day.
Weymouth weather in springMarch to May
High 12°CLow 8°CRain 19%
Spring in Weymouth has typical daily highs of about 12°C and lows of about 8°C, with a 19% chance of rain on a given day.
Weymouth weather in summerJune to August
High 19°CLow 15°CRain 15%
Summer in Weymouth has typical daily highs of about 19°C and lows of about 15°C, with a 15% chance of rain on a given day.
Weymouth weather in autumnSeptember to November
High 15°CLow 12°CRain 23%
Autumn in Weymouth has typical daily highs of about 15°C and lows of about 12°C, with a 23% chance of rain on a given day.
When is the rainy season in Weymouth?
Weymouth has no sharply defined rainy season: the chance of rain on a given day runs from 13% in July, the driest month, to 27% in December, the wettest.
What time of year is Weymouth windiest?
Winds in Weymouth are highest in February, averaging 7.5 m/s (27 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 Weymouth year round?
The average temperature in Weymouth over the whole year is 12°C. August is the hottest month, with highs of about 19°C; January is the coldest, with lows of about 6°C.