Annual mean 11°C · wettest around December · prevailing wind W
Warmest
26.5 °C
Coldest
1.9 °C
Wettest
37%
Windiest
4.8 m/s
Prevailing
W
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Plymouth over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -1°C. Plymouth has no sharply defined rainy season: the chance of rain on a given day runs from 29% in July, the driest month, to 34% in December, the wettest. Winds in Plymouth are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.5 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in Plymouth come in August, when the sky is typically 37% covered; January is the cloudiest month, at 50%.
Month by month Plymouth 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
2°C
-1°C
-3°C
31%
50%
3.6 m/s
0
0
6
February
4°C
-0°C
-2°C
32%
48%
3.5 m/s
1
0
12
March
7°C
2°C
1°C
31%
47%
3.9 m/s
2
0
20
April
11°C
6°C
7°C
34%
50%
3.6 m/s
9
0
45
May
17°C
12°C
14°C
32%
49%
3.2 m/s
40
6
72
June
22°C
17°C
22°C
29%
41%
2.9 m/s
73
27
56
July
26°C
21°C
27°C
29%
40%
2.7 m/s
51
57
22
August
26°C
20°C
26°C
30%
37%
2.5 m/s
59
52
27
September
22°C
16°C
21°C
32%
43%
2.7 m/s
71
24
58
October
17°C
11°C
14°C
33%
48%
2.9 m/s
47
4
73
November
10°C
5°C
6°C
31%
41%
3.4 m/s
11
0
41
December
5°C
1°C
-0°C
34%
47%
3.3 m/s
1
0
15
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 Plymouth weather by season
Year round, Plymouth has days of about 2°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -1°C to 21°C through the year, and the average temperature over the year is 11°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.
Plymouth weather in winterDecember to February
High 4°CLow -0°CRain 33%
Winter in Plymouth has typical daily highs of about 4°C and lows of about -0°C, with a 33% chance of rain on a given day.
Plymouth weather in springMarch to May
High 11°CLow 7°CRain 32%
Spring in Plymouth has typical daily highs of about 11°C and lows of about 7°C, with a 32% chance of rain on a given day.
Plymouth weather in summerJune to August
High 25°CLow 19°CRain 29%
Summer in Plymouth has typical daily highs of about 25°C and lows of about 19°C, with a 29% chance of rain on a given day.
Plymouth weather in autumnSeptember to November
High 16°CLow 11°CRain 32%
Autumn in Plymouth has typical daily highs of about 16°C and lows of about 11°C, with a 32% chance of rain on a given day.
When is the rainy season in Plymouth?
Plymouth has no sharply defined rainy season: the chance of rain on a given day runs from 29% in July, the driest month, to 34% in December, the wettest.
What time of year is Plymouth windiest?
Winds in Plymouth are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.5 m/s (9 km/h). The prevailing wind is from the W.
What is the average temperature in Plymouth year round?
The average temperature in Plymouth over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -1°C.