Bournemouth weather in August

August in Bournemouth: nice, a little rain, with clean air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Bournemouth🇬🇧 United Kingdom · British Isles · Beach83
  1. 41Jan
  2. 48Feb
  3. 58Mar
  4. 75Apr
  5. 77May
  6. 81Jun
  7. 85Jul
  8. 83Aug
  9. 73Sep
  10. 60Oct
  11. 49Nov
  12. 38Dec

#2 of 12 months in Bournemouth · #533 of 1413 destinations to visit in August · comfort 83/100 (tier A)

Days
23°C
Nights
12°C
Wet days
9
Sun
10.4 h
Humidity
77%
Daylight
15 h
Bournemouth, United Kingdom
Photo: Tony Zohari · Pexels

Traveller notes on Bournemouth in August

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.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Bournemouth

Regulars asking about wet-weather backups are a recurring feature of this town's forum regardless of the month, and the standard answer leans on the museums, indoor markets and covered attractions clustered near the seafront rather than assuming the beach plan will simply work out. Our row backs a real chance of that backup being needed, 51.9mm of rain across 10.1 days, alongside mild spring warmth, 18.4C over 7.4C nights feeling 5C, and a real 20.5 kph wind. The sea is still properly cool at 13.3C, not yet the swimming draw it becomes later in summer. The record: humidity 76 percent, 11.4 hours of sun and AQI 42.
HaveAnIndoorBackupReadyAnyway · May · 1 month ago · Read more on tripadvisor.ie ↗
Bournemouth-forum threads on local weather describe December as one of the wetter months of the year here, rain a regular feature across a real share of days, temperatures rarely climbing much past the high 40s Fahrenheit even at midday. Posters note it can dip to freezing on a cold snap, though such stretches seldom last more than a day or two before moderating again. Snow is called genuinely uncommon this close to the coast, with most winters bringing only light flurries that melt quickly rather than settling into anything photogenic. Wind off the Channel is a near-constant feature regardless of temperature, worth a proper windproof layer even on a day that isn't especially cold. The pier and seafront promenade are still called worth a walk on a clear day, bracing rather than pleasant, but a genuine local tradition regardless. The record: 10.6C days feeling like 7C, 3.9C nights, 84mm across 12.8 days, a 10.3C sea, 86 percent humidity and just 3.2 hours of sun.
BournemouthPierDecemberRegular · December · 1 month ago · Read more on Tripadvisor ↗
Asked to choose June or July, Bournemouth regulars pick June: a little quieter, and crucially before the school holidays send hotel prices up. Weekdays are quiet on the sand and weekends are not, and the crowding is concentrated rather than general - the stretch by the pier fills first, and walking a few minutes from any access point thins it out fast. Our row gives 21.3C over 10.9C with 58.9mm across 9.4 precipitation days and 11.5 hours of sun, which is a good British June. The one thing they will not promise is the water: at 17C the sea is still too cold for comfortable swimming this early, whatever the air is doing. The record: humidity 76 percent, a 20.9 kph wind, 16.4 hours of daylight and AQI 40.
BeforeTheSchoolsBreakUp · June · 1 month ago · Read more on tripadvisor.co.uk ↗
The Bournemouth forum's July pitch is that the south coast gets the better end of English summer - mid to high 20s when it goes well, and not as bad as up country when it does not - with the honest rider that the weather is hard to judge in advance any more. The beach fills on the same schedule every day: quiet on the west side at 10am, busy by the pier by afternoon, so walk away from the pier for space. The sea warms from June onward and is pleasant in the shallows in a decent summer. From late July to the end of August there are fireworks off the pier every Friday night. The record: 23.2C days, 12.6C nights, 9 precipitation days, 11.6 hours of sun in a 16-hour day, and a 16.1C sea.
PierFireworksFriday · July · 1 month ago · Read more on Tripadvisor ↗

Year-round notes are on Bournemouth's overview. Add your own note from Bournemouth's card on the map.

Bournemouth climate normals — August

Daytime high23°C / 73°F😎 nice
Nighttime low12°C / 54°F
Feels like (high)22°C / 72°F
Sea temperature17°C / 63°F🧊 bracing
Rainfall55 mm / 2.2 in🌦 some rain
Rainy days9 days
Humidity77%💦 very humid
Dew point13°C / 56°F
Sunshine10.4 h/day
Daylight14.5 h
Wind22 km/h / 13 mph
Air quality (US AQI)34🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Bournemouth 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 crowdsBeach season, English summer holidays, Summer holidays in United Kingdom(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Bournemouth'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 weatherBournemouth's weather peaks June–August, best around July.

August includes New Forest heather.

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Best weatherFair weatherToughest weather

What's on in Bournemouth in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Beach season

    15 May – 15 Sep · usuallySea warm enoughCrowded

    Seven miles of sand with lifeguards on through the summer, and the reason a hot weekend puts a hundred thousand people on the trains and the A31. The water is shallow and slow to warm.

  • Holiday

    English summer holidays

    20 Jul – 2 SepSchool holidaysCrowded

    Seven miles of sand and the whole of the South East on it in a heatwave; the seafront car parks fill by ten and the trains from Waterloo run standing. Sandbanks is the worst of it. Source ↗

  • Nature

    New Forest heather

    1 Aug – 10 Sep · usuallyWildflowers & blooms

    The heaths north of the town go purple for about five weeks in late summer, at the same time as the ponies are at their most visible on the open ground. Source ↗

  • Festival

    Bournemouth Air Festival

    25 Aug – 5 Sep · usuallyMajor festivalCrowdedBook early

    Four days of flying displays straight off the beach at the end of August, free to watch and drawing a crowd in the hundreds of thousands. Parking and the seafront road are the problem. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Bournemouth — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Bournemouth?

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Bournemouth in August — FAQ

Is August a good time to visit Bournemouth?
August in Bournemouth: nice, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Bournemouth on SeasonMap's comfort score (83/100).
What is the weather like in Bournemouth in August?
In August, Bournemouth averages a daily high of 22.6°C and a low of 12.1°C, with about 55.3 mm of rain over roughly 9.1 rainy days.
What is the air quality in Bournemouth in August?
Bournemouth has a mean US Air Quality Index of about 34 in August.

Within 300 km: Isle of Wight's Cowes Week around 28 Jul – 12 Aug, and Bath's Roman Baths open late on 1 Jul – 31 Aug.