SeasonMapDouglas weather in December
Isle of Man
December in Douglas: cold, rainy, with clean air — a gamble, with 18 rainy days.
#12 of 12 months in Douglas · #1138 of 1383 destinations to visit in December · comfort 50/100 (tier D)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Douglas in December
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Douglas climate normals — December
| Daytime high | 10°C / 50°F | 🧥 cold |
|---|---|---|
| Nighttime low | 6°C / 42°F | |
| Feels like (high) | 4°C / 39°F | |
| Sea temperature | 11°C / 52°F | 🥶 cold sea |
| Rainfall | 108 mm / 4.2 in | 🌧 rainy |
| Rainy days | 18 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 5°C / 42°F | |
| Sunshine | 2.9 h/day | |
| Daylight | 7.4 h | |
| Wind | 45 km/h / 28 mph | |
| Snowfall | 0.2 cm / 0.1 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Douglas in December
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.
Quietschool holidays in 7 of the markets that fill it, one of its worst months for weather(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).
Toughest weatherDouglas's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
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.
- Keswick100 kmKeswick Victorian Fayre1–10 Dec · usuallyChristmas & New Yearkeswickvictorianfayre.co.uk
- Belfast106 kmChristmas market at City Hall14 Nov – 22 DecChristmas & New Yearvisitbelfast.com
- Liverpool128 kmChristmas market and ice rink14 Nov – 24 Dec · usuallyChristmas & New Yearvisitliverpool.com
Where is Douglas?
Douglas in December — FAQ
- Is December a good time to visit Douglas?
- December in Douglas: cold, rainy, with clean air — a gamble, with 18 rainy days. It ranks #12 of 12 months for Douglas on SeasonMap's comfort score (50/100).
- What is the weather like in Douglas in December?
- In December, Douglas averages a daily high of 10°C and a low of 5.8°C, with about 107.8 mm of rain over roughly 18.1 rainy days.
- What is the air quality in Douglas in December?
- Douglas has a mean US Air Quality Index of about 35 in December.
Other months in Douglas
Compare Douglas in December
Warmer or cooler than Douglas in December
Similar destinations in Northern Europe — December
Within 300 km: Keswick's Keswick Victorian Fayre around 1–10 Dec, and Belfast's Christmas market at City Hall on 14 Nov – 22 Dec.