Spring
58°F / 40°F
March, April, May: about 12.2 in of rain.
Plan a visit
Best time to visit Brookhaven
May, July, August bring mild highs and the least rain.
Best time to visit
May · July · August
Highs between 65°F and 85°F with the least rain of the year. Hottest: July (83°F). Coldest nights: January (24°F). Wettest: March.
Brookhaven by season
Month-by-month planner
| Month | Weather | High / low | Rain | Local guides |
|---|---|---|---|---|
| January | Cold | 39°F / 24°F | 3.0 in | |
| February | Wet | 41°F / 25°F | 3.1 in | Valentine’s Day |
| March | Wet | 47°F / 31°F | 4.6 in | St. Patrick’s Day |
| April | Wet | 58°F / 40°F | 4.1 in | |
| May | Wet | 68°F / 49°F | 3.5 in | |
| June | Wet | 77°F / 60°F | 3.7 in | Fourth of July |
| July | Wet | 83°F / 66°F | 3.2 in | Fourth of July |
| August | Wet | 81°F / 65°F | 3.0 in | |
| September | Wet | 74°F / 57°F | 3.9 in | Halloween |
| October | Wet | 64°F / 46°F | 4.0 in | Halloween |
| November | Wet | 54°F / 37°F | 3.6 in | Halloween, Thanksgiving, Christmas |
| December | Wet | 45°F / 29°F | 4.5 in | Christmas, New Year’s Eve |
“Great” means highs between 65°F and 85°F with fewer than 10 wet days. Averages are NOAA’s 1991–2020 normals for the Shirley Brookhaven Ap station, not a forecast.
Around Brookhaven
See Brookhaven before you go
THINGS TO DO · YOUTUBE SHORT
Tour Stony Brook on Long Island
A local activity video shared by Newsday.
Watch on YouTube ↗
THINGS TO DO · YOUTUBE SHORT
Smith Point Beach 🏖 Fire Island National Seashore FINS Atlantic Ocean NY USA summer 2021 4K video
A local activity video shared by RyanReporting.
Watch on YouTube ↗Questions
What is the best month to visit Brookhaven?
May, July, August: highs between 65°F and 85°F with the least rain.
What is the hottest month in Brookhaven?
July, averaging 83°F highs.
What is the coldest month in Brookhaven?
January, with average lows of 24°F.
What is the rainiest month in Brookhaven?
March, averaging 4.6 in of precipitation.
When are the big holidays in Brookhaven?
See the local guides: Halloween (October), Thanksgiving (November), Christmas lights (late November to December), New Year’s Eve.