Your holiday weather, at a glance

Jersey in December: where is it warmest?

In December, Saint Helier averages 10 °C by day.

All destinations in December, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

Place	Score	Air	Sea	Sun	Rain days
Saint Helier	16	10°	11°	2 h	16

Jersey in December: where is it warmest?

The warmest places in December are Saint Helier (10 °C).

Jersey in December: where is the sea warmest?

The sea is warmest at Saint Helier (11 °C).

Jersey in December: where is the weather best?

The best holiday weather in December – warm, sunny and dry – is in Saint Helier.

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences