Weather in Isle of Man in December 2025
- December is usually the wettest month of the year in Isle of Man;
Average weather
Average temperature in Isle of Man in December
Going from a maximum of +55°F during the day to a minimum of +23°F during the night, the temperature in December averages around +46°F.
The average maximum temperature goes up 22% by the end of the month, compared with the beginning of the month, from +37°F to +45°F.
Is Isle of Man warm or cold in December?
Isle of Man is typically chill in December.
Maximum temperatures go down compared to the previous month from +48°F to +45°F. The minimum temperature also goes down from +39°F to +36°F.
Pack a jumper and a jacket as there will be cooler temperatures.
December is one of the coolest months in Isle of Man, here is the comparison with other months:
Climate in Isle of Man in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +48°F | +45°F | +43°F | ||||
| Min. temperature | ||||||
| +21°F | +7°F | +3°F | ||||
| Max. temperature | ||||||
| +63°F | +59°F | +57°F | ||||
| Rainfall | ||||||
| 110 mm | 121 mm | 102 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 4 m/s | ||||
| Humidity | ||||||
| 88% | 89% | 88% | ||||
| Air pressure | ||||||
| 1010 HPa | 1011 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 9 | 9 | 9 | ||||
| Rainy days | ||||||
| 19 | 17 | 16 | ||||
| Snowy days | ||||||
| 1 | 3 | 4 | ||||
December typically has worse weather conditions compared to November. It’s getting colder in December. From +48°F in the day, the average maximum temperature lowers to +45°F. Prepare for more rain. Average rainfall goes from 110 mm to 121 mm. Humidity rises from 88% to 89%. Winds are stronger in comparison to November, going up from 3 m/s to 4 m/s on average. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
January brings much the same weather, it remains bad.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Isle of Man is gradually increasing during December, going from 1 m/s to 2 m/s over the course of the month.
Rain
Snow
December is one of the snowiest months in Isle of Man.
Here’s how December is compared with other months in the amount of snow, total mm:
How was the weather last December in Isle of Man?
Climate Change Over the Years
The climate in Isle of Man in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+52°F) and the highest in 2022 (+57°F). The driest year was 1995 with only 774 mm of rainfall, and the wettest year was 2020 with 2197 mm.
FAQ
Is December a good time to visit Isle of Man?
Can you sunbathe in Isle of Man in December?
Is Isle of Man rainy in December?
Is it sunny in Isle of Man in December?
Monthly weather in Isle of Man
Source of the data
For this page, we’ve looked at the typical weather in Isle of Man, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
