Year-round weather and climate in Nantucket, United States
Average temperatures in Nantucket run from an average low of 0°C32°F in February up to an average high of 22°C72°F in July. October is the driest month at 6 rainy days; January the wettest at 12. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 7,446
- Currency
- USD
- Language
- English
- Time zone
- New York
Best time to visit
For the warmest temperatures and best chance of outdoor activities, plan your trip around July, August, and September.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
Thermal Flatline: Day-to-night temperatures barely budge. Evenings are just as warm as the afternoon, meaning you can confidently leave the evening jacket in your hotel.
Seasonality Profile
Temperate Year-Round: A relatively mild climate year-round, avoiding both extreme temperature swings and dramatic dry/wet seasons.
Evening vibe
Seasonal Terraces: During the more temperate months, the city opens up with lively outdoor terraces. For the rest of the year, expect to dine indoors.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Nantucket, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Oct is typically driest at 6 days (77mm); Jan the wettest at 12 days (125mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 5°C / 41°F | 1°C / 34°F | 6h | 12 | 125mm |
| Feb | 4°C / 39°F | 0°C / 32°F | 7h | 9 | 89mm |
| Mar | 6°C / 44°F | 3°C / 38°F | 7h | 11 | 117mm |
| Apr | 9°C / 49°F | 7°C / 44°F | 9h | 10 | 95mm |
| May | 13°C / 55°F | 11°C / 51°F | 10h | 8 | 61mm |
| Jun | 18°C / 64°F | 16°C / 60°F | 11h | 8 | 60mm |
| Jul | 22°C / 72°F | 20°C / 68°F | 11h | 8 | 70mm |
| Aug | 22°C / 71°F | 20°C / 67°F | 11h | 8 | 55mm |
| Sep | 20°C / 67°F | 18°C / 64°F | 9h | 8 | 131mm |
| Oct | 16°C / 61°F | 14°C / 57°F | 9h | 6 | 77mm |
| Nov | 11°C / 52°F | 8°C / 46°F | 7h | 8 | 56mm |
| Dec | 7°C / 45°F | 3°C / 37°F | 6h | 10 | 94mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Nantucket?
The most sunshine in Nantucket comes around June, averaging 11 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Nantucket?
Your packing list depends entirely on when you travel. Temperatures in Nantucket swing from an average low of 0°C32°F in February up to 22°C72°F in July. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Nantucket?
Nantucket gets rain on about 106 days out of the year. The wettest month is January. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Nantucket with Packola.
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