Island, Isle of Man
Isle of Man weather by month and the best time to visit
When to go to Isle of Man
May–Sep is mildest. TT fortnight (late May–early June) is the busiest and priciest, with road closures; many attractions close Oct–Mar.
Isle of Man weather by month
Average daily high, rainfall and conditions.
- Jan8°110 mm
- Feb7°89 mm
- Mar8°82 mm
- Apr9°62 mm
- May11°65 mm
- Jun14°74 mm
- Jul15°79 mm
- Aug16°97 mm
- Sep15°90 mm
- Oct13°123 mm
- Nov11°126 mm
- Dec9°126 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 8°C46°F | 6°C43°F | 110 mm | 85% | Cold |
| February | 7°C45°F | 6°C42°F | 89 mm | 85% | Cold |
| March | 8°C46°F | 6°C42°F | 82 mm | 85% | Cold |
| April | 9°C49°F | 7°C45°F | 62 mm | 85% | Cold |
| May | 11°C53°F | 9°C49°F | 65 mm | 85% | Cool |
| June | 14°C57°F | 12°C53°F | 74 mm | 87% | Cool |
| July | 15°C60°F | 14°C57°F | 79 mm | 87% | Cool |
| August | 16°C60°F | 14°C58°F | 97 mm | 87% | Cool |
| September | 15°C59°F | 14°C56°F | 90 mm | 85% | Cool |
| October | 13°C56°F | 12°C53°F | 123 mm | 83% | Cool |
| November | 11°C52°F | 9°C49°F | 126 mm | 83% | Cold |
| December | 9°C48°F | 7°C45°F | 126 mm | 84% | Cold |
Quick answers
What is the best month to visit Isle of Man?
May–Sep. May–Sep is mildest. TT fortnight (late May–early June) is the busiest and priciest, with road closures; many attractions close Oct–Mar.
When is the rainy season in Isle of Man?
Rain peaks in November with about 126 mm. No month averages 150 mm or more.
What is the hottest month in Isle of Man?
August, with average highs of 16°C (60°F).
How cold does Isle of Man get?
The coolest nights are in February, averaging 6°C (42°F).
More about Isle of Man
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.