Nantucket Weather Forecast
Nantucket weather: 71°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Nantucket weather in August
Weather map for Nantucket
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in Nantucket month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 38° | 30° | 3,9 in | ★★☆☆☆ |
| February | 37° | 31° | 3,5 in | ★★☆☆☆ |
| March | 44° | 38° | 5,0 in | ★★☆☆☆ |
| April | 48° | 44° | 3,1 in | ★★★☆☆ |
| May | 55° | 52° | 3,1 in | ★★★★☆ |
| June | 65° | 61° | 1,7 in | ★★★★★ |
| July | 72° | 68° | 3,5 in | ★★★★☆ |
| August | 71° | 67° | 1,7 in | ★★★★☆ |
| September | 67° | 64° | 5,2 in | ★★★★☆ |
| October | 61° | 57° | 3,0 in | ★★★★☆ |
| November | 52° | 46° | 2,2 in | ★★★☆☆ |
| December | 45° | 37° | 3,7 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit Nantucket
Go in June and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and March - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and March - historically the least comfortable months here.
How Nantucket compares with nearby places
Annual averages, and the difference against Nantucket.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Martha's Vineyard | 29 mi | 53°F | about the same | 46 in |
| Cape Cod National Seashore | 47 mi | 51°F | 33°F cooler | 43 in |
| Newport | 64 mi | 52°F | about the same | 48 in |
| Providence | 77 mi | 52°F | about the same | 52 in |
| Rhode Island | 77 mi | 52°F | about the same | 52 in |
See the Nantucket forecast by time range
Nantucket weather - more answers
Explore Nantucket
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Nantucket?
Nantucket is an island in Massachusetts. Its coordinates are 41.2835, -70.0995. It lies in North America.
What is the weather like in Nantucket right now?
It is currently 71°F (22°C) with partly cloudy. Humidity is 89% and wind is 7 mph.
When is the best time to visit Nantucket?
June and August offer the most comfortable conditions in Nantucket, which has a temperate climate. January, February and March are usually the hardest months for outdoor plans.
What time zone is Nantucket in?
Nantucket observes America/New_York (UTC-04:00). The local time is 11:41 PM.
What is the nearest airport to Nantucket?
The closest airports are Boston Logan International Airport (BOS), 88 mi away, John F. Kennedy International Airport (JFK), 197 mi away and LaGuardia Airport (LGA), 200 mi away.
What are the top things to do in Nantucket?
Popular options include Martha's Vineyard, Cape Cod National Seashore, Central Park, Times Square, Empire State Building and Hudson River.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 23, 2026 at 11:41 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
