SeasonMapDouglas weather in July
Isle of Man
July in Douglas: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Douglas · #321 of 1383 destinations to visit in July · comfort 88/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Douglas in July
Notes from nearby Belfast (106 km away)
Douglas doesn't have its own notes for July yet — these are about Belfast, close enough to share the season.
Belfast's forum calls July one of the warmest months, though 'warm' by local standards means highs around 16–18°C — regulars are consistent that an umbrella is standard kit whatever the season. The long daylight hours are the real summer draw, more than any guarantee of dry weather.
Add your own note from Douglas's card on the map.
Douglas climate normals — July
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 18°C / 64°F | |
| Sea temperature | 15°C / 59°F | 🥶 cold sea |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 11 h/day | |
| Daylight | 16.5 h | |
| Wind | 31 km/h / 19 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 Douglas in July
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.
BusyTynwald Day, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Douglas'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 weatherDouglas's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Douglas in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Holiday
Tynwald Day
6 JulNational holidayClosuresThe island's national day, held out at St John's rather than in Douglas: the year's laws read aloud in Manx and English on an open-air mound, then a fair. Moves to the Monday when 5 July is a weekend. Source ↗
Nearby, and something's on
Within 300 km of Douglas — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Douglas?
Douglas in July — FAQ
- Is July a good time to visit Douglas?
- July in Douglas: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Douglas on SeasonMap's comfort score (88/100).
- What is the weather like in Douglas in July?
- In July, Douglas averages a daily high of 18.7°C and a low of 13.3°C, with about 74.3 mm of rain over roughly 11.3 rainy days.
- What is the air quality in Douglas in July?
- Douglas has a mean US Air Quality Index of about 33 in July.
Other months in Douglas
Compare Douglas in July
Warmer or cooler than Douglas in July
Similar destinations in Northern Europe — July
Within 300 km: Manchester's Manchester International Festival around 25 Jun – 20 Jul, and Glasgow's Merchant City Festival around 22 Jul – 3 Aug.