Climate Insights for Bristol

The climate in Bristol is temperate. The average annual temperature is 13°C and approximately 1132mm of precipitation falls per year. Bristol receives a notable amount of rainfall throughout the year, including during its driest month. Bristol is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: Luglio, Agosto, Giugno. The coldest months are Gennaio, Febbraio, Dicembre, when temperatures can drop to -1°C. Light snow can occur between January and December.

Temperatures in Bristol vary considerably across the year, with a 29°C difference between the coldest and warmest months. The warmest month is Luglio, when average highs reach 28°C and the mean temperature sits around 23°C. The coldest month is Gennaio, when overnight lows fall to -1°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.

Bristol is a moderately rainy area, receiving approximately 1132mm of precipitation annually, which averages out to around 94mm per month. The wettest month is February, averaging 134mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 73mm. That's 61mm less than February, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Light snowfall can occur between January and December, totalling around 38cm annually. January is the snowiest month with approximately 15cm.

Bristol is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 15km/h in winter, 15km/h in spring, 11km/h in summer, 12km/h in autumn.

It is currently spring in Bristol, which began on March 20, 2026. Bristol is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in Luglio at around 28°C, while the coldest stretch bottoms out in Gennaio near -1°C. Summer is next, beginning on June 21, 2026 — 93 days from now.

The best time to visit Bristol is during Maggio, Giugno, Luglio, Agosto and Settembre, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 83mm per month. By contrast, Gennaio can be quite cold with temperatures dropping to -1°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Bristol based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.