Hampton Beach Weather in September

What's the weather like in Hampton Beach (New Hampshire) in September 2025?

The climate in Hampton Beach during September can be summarized as mild and a little damp.

September is in the fall / autumn in Hampton Beach and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (72°F), whilst at night 10°C (51°F) is normal.

Hampton Beach weather averages (imperial / metric)
Daytime temperature 22.5°C 72.4°F
Nightly temperature 10.4°C 50.6°F
Average temperature 16.4°C 61.5°F
Daily sunshine 8.2 hrs
Avg rainfall 87 mm 3.4 ins
Rainy days 9 days
Sea temperature 16.5°C 61.6°F
Humidity 75%
Windspeed 13.7kph 9 mph

On average September is the 5th driest month of the year in Hampton Beach with around 87mm 3.4 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 8.2 hours of sunshine per day.

September temperatures in Hampton Beach

Hampton Beach average temperature in September

September rainfall

Hampton Beach average rain in September

September hourly sunshine

Hampton Beach average rain in September

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 Hampton Beach in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Hampton Beach weather stats

Hampton Beach weather statistics
Hottest month: July 27.3°C 81.1°F
Driest month: August 72mm 2.8ins
Sunniest month: July 10hrs
Coldest month: January 0.8°C 33.4°F
Wettest month: November 124mm 4.9ins
Map showing location of Hampton Beach (42.90731, -70.812) Hampton Beach map pin © Google

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