Sea Isle Weather in September

Sea Isle in September averages 30°C (86°F) during the day and 24°C (75°F) at night. This is the wettest month of the year.

Rainfall in Sea Isle in September

With the year's heaviest rain occurring this month, it's best to be equipped with a poncho to handle the frequent downpours. You can typically expect 13 days of rain this month, averaging around 174 mm (6.9 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Sea Isle in September

In September, Sea Isle sees very high temperatures, with highs of 30°C (86°F). Nights drop to around 24°C (75°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Sea Isle in September

The days are predominantly sunny, with an estimated total of around 239 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If you prefer dry days with pleasant temperatures, March, April, May and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.