Bardsey Island, United Kingdom in December

December8°C average high

December has some of the coolest average daytime highs of the year, so pack for fresher conditions.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

December136mm average rain

December is one of Bardsey Island's wettest months, so rain is likely to be a major planning factor.

Driest monthsFebruary to July

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

December1.5 hours average sun

December is one of Bardsey Island's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsApril to August

This stretch has the strongest sunshine in the monthly averages.

December11°C average sea

December is close to Bardsey Island's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJuly to October

Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.

December11 weather score

December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJune to August

These months have the strongest weather score in the monthly averages.