Seabrook (NH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Seabrook.
Climate overview of Seabrook
Seabrook, New Hampshire, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to 2°C (36°F) in February.
With around 1336 mm (53 in) of annual rain/snowfall, Seabrook has a notably wet climate. The wettest month is December. The most sunshine falls in May, with an average of 10.0 hours of daily sunshine.
Seabrook Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Seabrook — and find the best time to visit.
Monthly Temperature in Seabrook
Depending on the time of the year, temperatures range from comfortable to very cold in Seabrook. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In February, the coolest month of the year, temperatures drop to a very cold 2°C (36°F).
At night, temperatures range from around 16°C (61°F) in July to -8°C (18°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Seabrook
Seabrook has a relatively rain/snowy climate with high precipitation levels, averaging 1336 mm (53 in) of rain/snowfall annually. Seabrook experiences moderate seasonal variation in snow/rainfall, with monthly averages ranging from 140 mm (5.5 in) in December, the wettest month, and 82 mm (3.2 in) in September, the driest month. For more details, please visit our Seabrook Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Seabrook
Seabrook can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Seabrook by Month
The relative humidity is high throughout the year in Seabrook.
The city experiences its highest humidity in August, reaching 72%. In February, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Seabrook
Rainfall during this time ranges from 82 mm (3.2 in) in September to 140 mm (5.5 in) in June. This means you can expect a mix of sunny days and occasional showers. Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Seabrook
What is the best time to visit Seabrook?
September typically offers the most optimal weather in Seabrook. In contrast, January, February, March and December tend to have less optimal conditions.
What temperatures can I expect in Seabrook?
Daytime highs range from 2°C (36°F) in February to 28°C (82°F) in July. Nighttime lows range from -8°C (18°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Seabrook get?
Annual rainfall is around 1336 mm (53 in). December is the wettest month with 140 mm (5.5 in), while September is the driest with 82 mm (3.2 in). In the coldest months, precipitation may fall as snow/rain.
How sunny is Seabrook?
Seabrook receives around 2,665 hours of sunshine per year. May is the sunniest month with 301 hours, while December is the cloudiest with just 141 hours. Overall, Seabrook enjoys abundant sunshine.
Seabrook 3-Day Forecast
Seabrook (NH) 3-Day Forecast
Seabrook on the map
Seabrook is highlighted — select any city to see its climate.
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