SeasonMapNantucket weather in June
United States
June in Nantucket: nice, a little rain, with muggy air — a great time to visit.
#3 of 12 months in Nantucket · #777 of 1383 destinations to visit in June · comfort 79/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nantucket in June
Other months in Nantucket
Nantucket's forum rates July for warm, sunny days, with one recurring caveat worth knowing before booking a beach-heavy trip: the ocean itself stays genuinely chilly until August catches up, so swimming is more bracing than the air temperature would suggest. Regulars who want both warm water and warm air tend to point toward September instead.
Add your own note from Nantucket's card on the map.
Nantucket climate normals — June
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 20°C / 68°F | |
| Sea temperature | 16°C / 61°F | 🧊 bracing |
| Rainfall | 60 mm / 2.4 in | 🌦 some rain |
| Rainy days | 6 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 14°C / 58°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 15.1 h | |
| Wind | 29 km/h / 18 mph | |
| Air quality (US AQI) | 56 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Nantucket in June
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsNantucket Film Festival, Summer break in United States, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Nantucket's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherNantucket's weather peaks June–August.
June includes Nantucket Film Festival.
Best weatherFair weatherToughest weather
What's on in Nantucket in June
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Tick season
1 Apr – 31 Oct · usuallyInsect seasonThe island's deer ticks carry Lyme, babesiosis and tularemia at rates among the highest anywhere, and the moors and bike-path verges are where they wait. Long trousers, and a check at the end of every day. Source ↗
- Season
Fog season
1 May – 31 Jul · usuallyRiskClosuresWarm air over a cold sea puts the island inside cloud for days at a stretch in early summer, and the small planes to Boston and Hyannis are the first thing it stops. Build a spare day into a June trip. Source ↗
- Festival
Nantucket Film Festival
20 Jun – 1 Jul · usuallyCrowdedBook earlyFive days at the end of June built around screenwriting rather than red carpets, with staged readings and panels in the old whaling-town halls. Rooms are already at summer rates by then. Source ↗
Nearby, and something's on
Within 300 km of Nantucket — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Nantucket?
Nantucket in June — FAQ
- Is June a good time to visit Nantucket?
- June in Nantucket: nice, a little rain, with muggy air — a great time to visit. It ranks #3 of 12 months for Nantucket on SeasonMap's comfort score (79/100).
- What is the weather like in Nantucket in June?
- In June, Nantucket averages a daily high of 20.5°C and a low of 13.8°C, with about 60.1 mm of rain over roughly 5.9 rainy days.
- What is the air quality in Nantucket in June?
- Nantucket has a mean US Air Quality Index of about 56 in June.
Other months in Nantucket
Compare Nantucket in June
Warmer or cooler than Nantucket in June
Similar destinations in North America — June
Within 300 km: Boston's Whales on Stellwagen Bank around 15 Apr – 20 Oct, and Newport's Summer season on 20 Jun – 7 Sep.