Annual mean 11°C · wettest around December · prevailing wind W
Warmest
26.3 °C
Coldest
1.4 °C
Wettest
23%
Windiest
4.8 m/s
Prevailing
W
4.0 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 Bristol 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 -2°C. Bristol has no sharply defined rainy season: the chance of rain on a given day runs from 11% in July, the driest month, to 20% in December, the wettest. Winds in Bristol are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.6 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in Bristol come in November, when the sky is typically 41% covered; May is the cloudiest month, at 54%.
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
2°C
-2°C
-3°C
15%
52%
3.6 m/s
0
0
6
February
3°C
-1°C
-2°C
18%
50%
3.5 m/s
1
0
12
March
7°C
2°C
1°C
15%
50%
3.9 m/s
2
0
23
April
11°C
6°C
7°C
19%
53%
3.6 m/s
12
0
49
May
17°C
12°C
14°C
17%
54%
3.3 m/s
45
6
75
June
22°C
17°C
22°C
11%
47%
2.9 m/s
77
29
56
July
26°C
21°C
27°C
11%
45%
2.7 m/s
51
61
20
August
25°C
19°C
26°C
11%
43%
2.6 m/s
59
55
26
September
22°C
16°C
21°C
13%
48%
2.8 m/s
73
24
59
October
17°C
11°C
14°C
14%
49%
3.1 m/s
48
5
75
November
10°C
5°C
6°C
15%
41%
3.3 m/s
11
0
41
December
4°C
1°C
-1°C
20%
46%
3.3 m/s
0
0
14
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 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 -2°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.
Bristol weather in winterDecember to February
High 3°CLow -1°CRain 18%
Winter in Bristol has typical daily highs of about 3°C and lows of about -1°C, with a 18% chance of rain on a given day.
Bristol weather in springMarch to May
High 12°CLow 6°CRain 17%
Spring in Bristol has typical daily highs of about 12°C and lows of about 6°C, with a 17% chance of rain on a given day.
Bristol weather in summerJune to August
High 25°CLow 19°CRain 11%
Summer in Bristol has typical daily highs of about 25°C and lows of about 19°C, with a 11% chance of rain on a given day.
Bristol weather in autumnSeptember to November
High 16°CLow 10°CRain 14%
Autumn in Bristol has typical daily highs of about 16°C and lows of about 10°C, with a 14% 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 11% in July, the driest month, to 20% in December, the wettest.
What time of year is Bristol windiest?
Winds in Bristol are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.6 m/s (9 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 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -2°C.