Brookhaven Weather in September

September in Brookhaven brings very high temperatures around 31°C (88°F) during the day, dropping to 18°C (64°F) at night, with quite a bit of rainfall expected, averaging around 137 mm (5.4 in) for the month.

Rainfall in Brookhaven in September

This month experiences about 9 days of rain according to historical data, averaging 137 mm (5.4 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Brookhaven in September

September in Brookhaven sees highs of 31°C (88°F) and lows of 18°C (64°F) overnight. The hottest part of the day is usually in the afternoon, so lighter clothing can help you stay comfortable. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. October typically offers the best weather for Brookhaven.

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• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Brookhaven's climate page.

Brookhaven Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 31°C (88°F)  

Chance of Rain 30%  

Precipitation 137 mm (5.4 in)  

Rainy days 9 days  

What to Wear in Brookhaven in September

Warm but pleasant conditions in Brookhaven in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags.

What To Do in Brookhaven in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Brookhaven's climate page.

More climate data for Brookhaven

Temperature Rainfall

See the full Brookhaven climate overview or explore weather in the United States of America.