SeasonMapBristol weather in August
United Kingdom
August in Bristol: nice, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Bristol · #269 of 1383 destinations to visit in August · comfort 89/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Bristol in August
Notes from nearby Bournemouth (96 km away)
Bristol doesn't have its own notes for August yet — these are about Bournemouth, close enough to share the season.
August in Bournemouth is the peak of everything. A good day can reach the mid-to-high 20s°C, though the monthly average high sits nearer 21, with the sea around 17°C. The forum's real subject, though, is volume: a very hot summer's day brings roughly 80,000 people to the beach, and an airshow day upwards of 250,000. Regulars advise avoiding the Pier area for crowding and parking and heading to Southbourne, Christchurch and Hengistbury Head, or Mudeford instead. Two August fixtures worth timing around: fireworks off the pier every Friday night from late July to the end of August, and the Wednesday candlelight evenings in the lower gardens.
Other months in Bristol
The UK forum's consistent line on early July: expect roughly 17°C on average with a real chance of rain, and treat any specific forecast as unreliable more than a few days out. Regulars across the south-west give the same standing advice for a trip to Bristol as anywhere else in Britain in summer — pack for both sun and rain, because a single day can bring either.
Add your own note from Bristol's card on the map.
Bristol climate normals — August
| Daytime high | 21°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 21°C / 70°F | |
| Sea temperature | 19°C / 67°F | 🌊 fresh |
| Rainfall | 62 mm / 2.4 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 14.5 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 33 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Bristol in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsBalloon Fiesta, Summer holidays in United Kingdom, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Bristol's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherBristol's weather peaks June–August, best around July.
August includes Balloon Fiesta.
Best weatherFair weatherToughest weather
What's on in Bristol in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Festival
Balloon Fiesta
7–9 AugMajor festivalCrowdedMass ascents at dawn and dusk over Ashton Court in early August, with night glows on the Friday and Saturday. Wind cancels ascents at short notice, so plan for more than one slot. Source ↗
Nearby, and something's on
Within 300 km of Bristol — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Bristol?
Bristol in August — FAQ
- Is August a good time to visit Bristol?
- August in Bristol: nice, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Bristol on SeasonMap's comfort score (89/100).
- What is the weather like in Bristol in August?
- In August, Bristol averages a daily high of 21.4°C and a low of 13.9°C, with about 62 mm of rain over roughly 10.1 rainy days.
- What is the air quality in Bristol in August?
- Bristol has a mean US Air Quality Index of about 33 in August.
Other months in Bristol
Compare Bristol in August
Warmer or cooler than Bristol in August
Similar destinations in Northern Europe — August
Within 300 km: Bath's Roman Baths open late on 1 Jul – 31 Aug, and Bournemouth's New Forest heather around 1 Aug – 10 Sep.