Bristol, United Kingdom Weather
Bristol hourly forecast: next 24 hours
Today's high of 62°F (17°C) is about 3°F (2°C) below the typical September high of 65°F (18°C).
Current conditions in detail
Bristol weather tomorrow (Thursday, September 17)
Tomorrow in Bristol looks patchy rain nearby, with a high of 64° and an overnight low of 54°. There is a 72% chance of rain - plan accordingly. Winds top out near 16 mph, and the UV index reaches 4 (moderate).
Bristol 14-day forecast
About the weather in Bristol
Set in United Kingdom, Bristol works through an oceanic year: July afternoons near 69°F (21°C), January afternoons near 46°F (8°C), and about 36.9 inches (938 mm) of precipitation between them.
Bristol weather: quick facts
- Hottest month: July - highs near 69°F (21°C)
- Coldest month: January - highs near 46°F (8°C)
- Decade extremes (2015-2024): 92°F (33°C) high · 20°F (-6°C) low
- Wettest month: December (15 rainy days) · Sunniest: June (11.0 h sun/day)
- Climate type: oceanic
- Annual swing: 12°C between the average warmest and coolest month · day to night: 6°C
- Snow: about 2 days a year
- Average humidity: 82%
Temperatures through the year
January is the coolest month, with highs of 46°F (8°C) and lows near 36°F (2°C). At its warmest, in July, Bristol runs to 69°F (21°C) in the afternoon and back to 56°F (13°C) by dawn. Precipitation concentrates in December - 3.9 inches (100 mm) on 15 days - and thins out by April.
Rain, sun and snow
Relative humidity averages 82% across the year, more humid than 92% of the 3496 cities in our dataset. Days and nights are about 6°C apart on average - narrower than about 87% of the cities we track. Sunshine averages 7.4 hours a day over the year - duller than all but 5% of the 3496 cities in our dataset, peaking in June at 11.0 hours. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 92°F (33°C) and the lowest daily minimum 20°F (-6°C).
Season by season
Spring (March through May)
Spring in Bristol is mild, with daytime highs averaging 56°F (13°C) and nights around 42°F (6°C); rain falls on around 38 of the 90 days.
Summer (June through August)
Through summer, Bristol settles into easy warmth: 68°F (20°C) by day, 55°F (13°C) after dark, and rain falls on around 38 of the 90 days. Daylight is generous - around 10.5 hours of sun a day.
Fall (September through November)
Fall is crisp but comfortable here - highs near 58°F (14°C), nights near 47°F (9°C), and rain falls on around 40 of the 90 days.
Winter (December through February)
Winter in Bristol is chilly, with daytime highs averaging 47°F (8°C) and nights around 38°F (3°C); rain falls on around 40 of the 90 days.
Average temperatures in Bristol by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 46° | 36° | 13 | 2.8 in | 4.0 h/day | 88% |
| February | 48° | 38° | 12 | 2.9 in | 5.1 h/day | 84% |
| March | 50° | 39° | 15 | 3.3 in | 6.5 h/day | 82% |
| April | 55° | 40° | 10 | 2.0 in | 9.3 h/day | 77% |
| May | 61° | 47° | 12 | 2.8 in | 10.6 h/day | 77% |
| June | 67° | 53° | 12 | 2.7 in | 11.0 h/day | 77% |
| July | 69° | 56° | 13 | 2.8 in | 10.9 h/day | 76% |
| August | 68° | 56° | 13 | 3.2 in | 9.6 h/day | 79% |
| September | 65° | 52° | 13 | 3.4 in | 8.1 h/day | 81% |
| October | 58° | 48° | 14 | 3.8 in | 6.0 h/day | 85% |
| November | 51° | 42° | 14 | 3.3 in | 4.2 h/day | 87% |
| December | 48° | 40° | 15 | 3.9 in | 3.2 h/day | 89% |