Fairhaven (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Fairhaven.
Climate overview of Fairhaven
Temperatures in Fairhaven, Massachusetts, United States of America, vary greatly throughout the year. July is the hottest month at 27°C (81°F), while January is the coldest at 4°C (39°F).
Rain/snowfall is high, totalling around 1302 mm (51 in) per year. December is the wettest month and August the driest. The city also experiences warm summers and cold winters. The sunniest month is July, with 9.7 hours of sunshine per day on average.
Fairhaven Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fairhaven - and find the best time to visit.
Monthly Temperature in Fairhaven
The climate in Fairhaven is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a comfortable 27°C (81°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 19°C (66°F) in July to around -5°C (23°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Fairhaven
Fairhaven has a notably wet climate with abundant precipitation, recording 1302 mm (51 in) of rain/snowfall per year. Year-round, Fairhaven has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 137 mm (5.4 in), and the driest month, August, with 95 mm (3.7 in), is minimal. For more details, please visit our Fairhaven 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 Fairhaven
Seasonal changes in sunshine hours are quite dramatic in Fairhaven. While July receives considerable daily sunshine with up to 9.7 hours, November marks the darkest time of the year, where sunshine is scarce with only 4.9 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 Fairhaven by Month
The relative humidity is high throughout the year in Fairhaven.
The city experiences its highest humidity in August, reaching 73%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Fairhaven
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: August and September
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Fairhaven
What is the best time to visit Fairhaven?
August and September typically offer the most optimal weather in Fairhaven. In contrast, January, February, March, November and December tend to have less optimal conditions. Fairhaven has warm summers and cold winters.
What temperatures can I expect in Fairhaven?
Daytime highs range from 4°C (39°F) in January to 27°C (81°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Fairhaven get?
Annual rainfall is around 1302 mm (51 in). December is the wettest month with 137 mm (5.4 in), while August is the driest with 95 mm (3.7 in).
How sunny is Fairhaven?
Fairhaven receives around 2,598 hours of sunshine per year. July is the sunniest month with 290 hours, while November is the cloudiest with just 147 hours. Overall, Fairhaven enjoys abundant sunshine.
Fairhaven 3-Day Forecast
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