Selsey, United Kingdom in September

September18°C average high

September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.

Warmest monthsJune to September

This stretch sets the upper range for average daytime heat.

September65mm average rain

September sits near Selsey's yearly rainfall average, so rain is a normal planning factor rather than an outlier.

Driest monthsFebruary to September

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

September5.5 hours average sun

September sits close to Selsey's yearly sunshine average, so it is a middle-of-the-pack month for bright days.

Brightest monthsMay to August

This stretch has the strongest sunshine in the monthly averages.

September17°C average sea

September is one of Selsey's warmest sea months, when swimming comfort is usually strongest.

Warmest seaJuly to October

Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.

September41 weather score

September scores above Selsey's yearly average, so the overall weather mix is stronger than most months.

Best weather monthsJune to August

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