Nantucket Climate and Average Weather
Climate of Nantucket: average temperatures, rainfall and seasons month by month.
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).
Recent extremes in Nantucket
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
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 |
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 this means for Nantucket
Today is slightly warmer than average for August. The forecast high of 77°F is 6.3°F above the 71°F typical for this month.
A 33% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
Visibility is down to 0,2 mi - use low beams and leave extra following distance.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 68°F.
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.
Summary
Nantucket is an island in Massachusetts. Nantucket is an island known for whaling history and grey-shingled cottages.
Right now it is 71°F (22°C) in Nantucket with overcast. It feels like 75°F. Today runs from 68°F to 77°F. Chance of precipitation is 33%. Sightseeing conditions score 6.4/10 - fair - plan around the weather.
The best time to visit Nantucket is June and August. The climate is temperate. January, February and March tend to be the least comfortable months. July is the warmest month with average highs near 72°F, while January is the coldest with lows near 30°F.
The closest major airport is Boston Logan International Airport (BOS), about 88 mi away. Nearby highlights include Martha's Vineyard, Cape Cod National Seashore, Central Park and Times Square.
In plain terms. Today is slightly warmer than average for August. The forecast high of 77°F is 6.3°F above the 71°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Nantucket today at 9.4/10. Visibility is down to 0,2 mi - use low beams and leave extra following distance.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about Nantucket
| Type | Island |
|---|---|
| State | Massachusetts |
| Country | United States |
| Continent | North America |
| Coordinates | 41°17′0.6″N 70°5′58.2″W (41.2835, -70.0995) |
| Known for | whaling history and grey-shingled cottages |
| Local time | 9:40 AM (UTC-04:00) |
| Best months | June and August |
| Climate | Temperate |
Weather map for Nantucket
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore Nantucket
Every topic we hold for this place, and the same topic for the places around it.
Climate 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 overcast. Humidity is 89% and wind is 6 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 9:40 AM.
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 24, 2026 at 9:40 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
