Weather & climate · Saint Helier
Best Time to Visit Jersey
June to September
The best time to visit Jersey is June to September, when daytime highs in Saint Helier are around 18–20°C. August is the warmest month (20°C by day), February the coldest (5°C at night), and November the wettest with about 95 mm of rain.
20°C
Warmest: August
5°C
Coldest nights: February
774 mm
Rain per year
95 mm
Wettest: November
Jersey weather by month
- Jan9°C6°C80 mm
- Feb9°C5°C67 mm
- Mar10°C6°C59 mm
- Apr12°C8°C44 mm
- May15°C11°C53 mm
- Jun18°C14°C47 mm
- Jul19°C16°C51 mm
- Aug20°C16°C54 mm
- Sep19°C15°C47 mm
- Oct16°C13°C82 mm
- Nov12°C10°C95 mm
- Dec10°C7°C95 mm
Best time Good Less ideal
| Month | High | Low | Rain | Humidity | Cloud cover | Verdict |
|---|---|---|---|---|---|---|
| January | 9°C | 6°C | 80 mm | 87% | 85% | Fair |
| February | 9°C | 5°C | 67 mm | 85% | 82% | Fair |
| March | 10°C | 6°C | 59 mm | 85% | 77% | Fair |
| April | 12°C | 8°C | 44 mm | 82% | 68% | Fair |
| May | 15°C | 11°C | 53 mm | 83% | 68% | Fair |
| June | 18°C | 14°C | 47 mm | 83% | 66% | Best time |
| July | 19°C | 16°C | 51 mm | 82% | 63% | Best time |
| August | 20°C | 16°C | 54 mm | 82% | 67% | Best time |
| September | 19°C | 15°C | 47 mm | 81% | 67% | Best time |
| October | 16°C | 13°C | 82 mm | 83% | 78% | Fair |
| November | 12°C | 10°C | 95 mm | 85% | 85% | Fair |
| December | 10°C | 7°C | 95 mm | 86% | 86% | Fair |
Data: NASA POWER (Prediction Of Worldwide Energy Resources) — 25-year climate averages 2001–2025, public domain, for the area around Saint Helier (49.18, -2.1). Satellite and model averages — local weather stations can differ by 1–2 °C, and mountains or coasts elsewhere in Jersey have their own climate.
Frequently asked questions
When is the best time to visit Jersey?
June to September. The best time to visit Jersey is June to September, when daytime highs in Saint Helier are around 18–20°C. August is the warmest month (20°C by day), February the coldest (5°C at night), and November the wettest with about 95 mm of rain.
What is the hottest month in Jersey?
August, with average highs of 20°C in Saint Helier.
What is the coldest month in Jersey?
February, when nights drop to about 5°C and days reach 9°C.
What is the rainiest month in Jersey?
November with about 95 mm; April is the driest (44 mm).
When should I avoid visiting Jersey?
December is the least comfortable month on average: 10°C by day and 95 mm of rain.