Bethany Beach Weather in September

September in Bethany Beach brings high temperatures, with highs of 26°C (79°F) and nights dropping to 17°C (63°F). Rainfall is on the higher side this month, averaging around 113 mm (4.4 in), so keep a rain jacket handy.

Rainfall in Bethany Beach in September

You can typically expect 10 days of rain this month, averaging around 113 mm (4.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Bethany Beach in September

Expect highs of 26°C (79°F) in Bethany Beach in September, with nights dropping to around 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Average water temperature in September

With water at 21°C (70°F), conditions are good for swimming and other water activities. You won't need a wetsuit and most people find it very comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May typically offers the best weather for Bethany Beach.