Nantucket (MA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Nantucket.
Climate overview of Nantucket
Nantucket, Massachusetts, United States of America, sees big temperature differences between seasons, with July peaking at 24°C (75°F) and February dropping to 4°C (39°F).
The city has a wet climate, receiving around 1159 mm (46 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. December is the wettest month. The sunniest month is July, with 10.0 hours of sunshine per day on average.
Nantucket Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Nantucket - and find the best time to visit.
Monthly Temperature in Nantucket
Visitors to Nantucket can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a chilly 4°C (39°F) in February.
Nighttime temperatures range from 18°C (64°F) in July to -3°C (27°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Nantucket
Nantucket is known for its substantial rain/snowfall, with annual precipitation reaching 1159 mm (46 in). The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 127 mm (5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, August, still receives a respectable 73 mm (2.9 in) of rainfall. For more details, please visit our Nantucket 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 Nantucket
In Nantucket, summer days are longer and more sunny, with daily sunshine hours peaking at 10.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 4.9 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Nantucket
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewer rainy days: February, May, July, August and September
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: February, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Nantucket
What is the best time to visit Nantucket?
June, July, August and September typically offer the most optimal weather in Nantucket. In contrast, January, February, March, November and December tend to have less optimal conditions. Nantucket has warm summers and cold winters.
What temperatures can I expect in Nantucket?
Daytime highs range from 4°C (39°F) in February to 24°C (75°F) in July. Nighttime lows range from -3°C (27°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Nantucket get?
Annual rainfall is around 1159 mm (46 in). December is the wettest month with 127 mm (5 in), while August is the driest with 73 mm (2.9 in).
How sunny is Nantucket?
Nantucket receives around 2,605 hours of sunshine per year. July is the sunniest month with 301 hours, while January is the cloudiest with just 147 hours. Overall, Nantucket enjoys abundant sunshine.
Nantucket 3-Day Forecast
Nantucket (MA) 3-Day Forecast
Nantucket on the map
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