Rehoboth Beach Weather in May

What's the weather like in Rehoboth Beach (Delaware) in May 2025?

The climate in Rehoboth Beach during May can be summarized as mild and a little damp.

May is in the spring in Rehoboth Beach and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 23°C (72°F), whilst at night 11°C (52°F) is normal.

Rehoboth Beach weather averages (imperial / metric)
Daytime temperature 22.5°C 72.4°F
Nightly temperature 11.2°C 52.1°F
Average temperature 16.8°C 62.2°F
Daily sunshine 9.3 hrs
Avg rainfall 89 mm 3.5 ins
Rainy days 10 days
Sea temperature 11.8°C 53.2°F
Humidity 72%
Windspeed 15.8kph 10 mph

On average May is the 5th wettest month of the year in Rehoboth Beach with around 89mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

May temperatures in Rehoboth Beach

Rehoboth Beach average temperature in May

May rainfall

Rehoboth Beach average rain in May

May hourly sunshine

Rehoboth Beach average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rehoboth Beach in May 2025.