Rehoboth Beach Weather in December

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

The climate in Rehoboth Beach during December can be summarized as cool and a little damp.

December is in the winter in Rehoboth Beach and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -1°C (30°F) is normal.

Rehoboth Beach weather averages (imperial / metric)
Daytime temperature 8.6°C 47.5°F
Nightly temperature -1.2°C 29.8°F
Average temperature 3.7°C 38.7°F
Daily sunshine 5.9 hrs
Avg rainfall 90 mm 3.5 ins
Rainy days 9 days
Sea temperature 8.1°C 46.6°F
Humidity 71%
Windspeed 15.8kph 10 mph

On average December is the 4th wettest month of the year in Rehoboth Beach with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.9 hours of sunshine per day.

December temperatures in Rehoboth Beach

Rehoboth Beach average temperature in December

December rainfall

Rehoboth Beach average rain in December

December hourly sunshine

Rehoboth Beach average rain in December

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 December 2025.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Rehoboth Beach weather stats

Rehoboth Beach weather statistics
Hottest month: July 29.3°C 84.7°F
Driest month: June 77mm 3ins
Sunniest month: April 9hrs
Coldest month: January 5.6°C 42.1°F
Wettest month: August 115mm 4.5ins
Map showing location of Rehoboth Beach (38.72095, -75.07601) Rehoboth Beach map pin © Google

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