Annual mean 13°C · wettest around December · prevailing wind W
Warmest
29.7 °C
Coldest
3.1 °C
Wettest
26%
Windiest
4.5 m/s
Prevailing
W
3.5 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 Bristol 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. Bristol has no sharply defined rainy season: the chance of rain on a given day runs from 23% in June, the driest month, to 29% in December, the wettest. Winds in Bristol are highest in March, averaging 3.3 m/s (12 km/h), and lightest in July, at 2.0 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Bristol come in July, when the sky is typically 35% covered; May is the cloudiest month, at 51%.
Month by month Bristol 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
24%
48%
2.9 m/s
1
0
10
February
6°C
1°C
1°C
27%
45%
2.8 m/s
3
0
21
March
10°C
3°C
5°C
25%
45%
3.3 m/s
10
0
38
April
15°C
8°C
11°C
25%
48%
3.1 m/s
32
4
62
May
20°C
14°C
18°C
25%
51%
2.6 m/s
60
18
65
June
26°C
19°C
25°C
23%
38%
2.4 m/s
60
47
34
July
29°C
22°C
31°C
25%
35%
2.0 m/s
23
62
5
August
28°C
21°C
29°C
23%
38%
2.0 m/s
40
61
14
September
24°C
17°C
24°C
23%
41%
2.1 m/s
68
39
43
October
19°C
11°C
16°C
23%
44%
2.2 m/s
57
11
72
November
12°C
5°C
7°C
23%
36%
2.5 m/s
16
0
48
December
6°C
2°C
1°C
29%
46%
2.6 m/s
2
0
18
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 Bristol weather by season
Year round, Bristol 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 June. 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.
Bristol weather in winterDecember to February
High 5°CLow 1°CRain 27%
Winter in Bristol has typical daily highs of about 5°C and lows of about 1°C, with a 27% chance of rain on a given day.
Bristol weather in springMarch to May
High 15°CLow 8°CRain 25%
Spring in Bristol has typical daily highs of about 15°C and lows of about 8°C, with a 25% chance of rain on a given day.
Bristol weather in summerJune to August
High 28°CLow 21°CRain 24%
Summer in Bristol has typical daily highs of about 28°C and lows of about 21°C, with a 24% chance of rain on a given day.
Bristol weather in autumnSeptember to November
High 18°CLow 11°CRain 23%
Autumn in Bristol has typical daily highs of about 18°C and lows of about 11°C, with a 23% chance of rain on a given day.
When is the rainy season in Bristol?
Bristol has no sharply defined rainy season: the chance of rain on a given day runs from 23% in June, the driest month, to 29% in December, the wettest.
What time of year is Bristol windiest?
Winds in Bristol are highest in March, averaging 3.3 m/s (12 km/h), and lightest in July, at 2.0 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Bristol year round?
The average temperature in Bristol 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.