Bristol weather in August
Long-run climate averages for Bristol, England in August, plus what the forecast models say for the days ahead.
In August, Bristol averages 20°C by day and 13°C at night. The wettest month is usually September.
August in Bristol averages a daytime high of 20°C and an overnight low of 13°C, which reads as mild for this part of the world. It is among the three warmest months of the year here. Across the whole year Bristol sees roughly 1221 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Bristol forecast with every model compared and how much they currently agree.
Bristol weather by month
what to expect in Bristol through the yearHere is Bristol's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Bristol by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Bristol, scoring 92/100 on our CheckWeather Score, ahead of the Met Office at 82. See the full UK accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Bristol in August?
Is August a good time to visit Bristol?
Does it rain a lot in Bristol in August?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .