Annual mean 13°C · wettest around December · prevailing wind W
Warmest
29.2 °C
Coldest
2.6 °C
Wettest
39%
Windiest
3.9 m/s
Prevailing
W
3.0 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 13°C. July is the hottest month, with highs of about 29°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 34% in October, the driest month, to 40% in December, the wettest. Winds in Plymouth are highest in March, averaging 2.8 m/s (10 km/h), and lightest in August, at 1.6 m/s (6 km/h). The prevailing wind is from the W. The clearest skies in Plymouth come in July, when the sky is typically 37% covered; May is the cloudiest month, at 52%.
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
3°C
-1°C
-2°C
37%
51%
2.5 m/s
1
0
9
February
5°C
1°C
0°C
39%
47%
2.4 m/s
3
0
19
March
9°C
3°C
4°C
38%
46%
2.8 m/s
9
0
35
April
15°C
8°C
11°C
37%
49%
2.7 m/s
31
3
61
May
20°C
14°C
18°C
39%
52%
2.2 m/s
60
16
64
June
26°C
19°C
25°C
36%
40%
2.0 m/s
61
45
34
July
29°C
22°C
30°C
37%
37%
1.7 m/s
25
63
6
August
27°C
20°C
28°C
35%
40%
1.6 m/s
42
61
15
September
24°C
17°C
23°C
36%
42%
1.8 m/s
68
37
44
October
18°C
11°C
16°C
34%
45%
1.8 m/s
55
10
72
November
11°C
5°C
7°C
36%
38%
2.2 m/s
14
0
45
December
5°C
1°C
1°C
40%
50%
2.2 m/s
1
0
17
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 3°C at their warmest in January, its coolest month, and 29°C in July, its warmest; the coolest hours of the day run from -1°C to 22°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around December and least likely around October. 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 5°CLow 0°CRain 39%
Winter in Plymouth has typical daily highs of about 5°C and lows of about 0°C, with a 39% chance of rain on a given day.
Plymouth weather in springMarch to May
High 15°CLow 8°CRain 38%
Spring in Plymouth has typical daily highs of about 15°C and lows of about 8°C, with a 38% chance of rain on a given day.
Plymouth weather in summerJune to August
High 27°CLow 20°CRain 36%
Summer in Plymouth has typical daily highs of about 27°C and lows of about 20°C, with a 36% chance of rain on a given day.
Plymouth weather in autumnSeptember to November
High 18°CLow 11°CRain 35%
Autumn in Plymouth has typical daily highs of about 18°C and lows of about 11°C, with a 35% 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 34% in October, the driest month, to 40% in December, the wettest.
What time of year is Plymouth windiest?
Winds in Plymouth are highest in March, averaging 2.8 m/s (10 km/h), and lightest in August, at 1.6 m/s (6 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 13°C. July is the hottest month, with highs of about 29°C; January is the coldest, with lows of about -1°C.