Jersey
Jersey in December
Where it is warm, dry and good for swimming in Jersey in December — compared across the country’s main destinations.
Quick answers
- Where is it warmest in Jersey in December?
- Saint Helier is the warmest of the 6 destinations compared, with highs of 10°C (50°F) in December; Trinity is the coolest at 9°C (49°F).
- Can you swim in the sea in Jersey in December?
- Hardly: even the warmest water, at Saint Helier (11°C (52°F)), stays below 21 °C.
Warmest
10°
Saint Helier
Coolest
9°
Trinity
Driest
99 mm
Saint Helier
Warmest sea
11°
Saint Helier
Across Jersey, December highs run from 9°C (49°F) (Trinity) to 10°C (50°F) (Saint Helier). On average it is 2 °C (4 °F) cooler than November. Rain is frequent in most destinations. Best bets this month: Saint Helier.
Best places in Jersey in December
Weather in December by city
| Place | Day | Night | Rain | Sea | Score |
|---|---|---|---|---|---|
| Saint Helier | 10° | 6° | 99 mm | 11° | 14 |
| Le Hocq | 10° | 6° | 99 mm | 11° | 14 |
| Saint John | 10° | 6° | 105 mm | 11° | 13 |
| St Lawrence | 10° | 5° | 102 mm | 11° | 13 |
| St Martin | 10° | 5° | 105 mm | 11° | 13 |
| Trinity | 9° | 6° | 107 mm | 11° | 13 |
Frequently asked questions
What is the weather like in Jersey in December?
Average daytime highs range from 9° in Trinity to 10° in Saint Helier.
Can you swim in Jersey in December?
The sea is cool: the warmest water is around Saint Helier at about 11°.