Sag Harbor Weather in September

Sag Harbor in September sees high daytime temperatures of 23°C (73°F) and nighttime lows of 14°C (57°F). Rainfall is fairly high this month at around 110 mm (4.3 in), so pack a rain jacket to stay dry.

Rainfall in Sag Harbor in September

You can expect rain on around 9 days based on historical patterns, with 110 mm (4.3 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Sag Harbor in September

If you're visiting Sag Harbor in September, expect highs of 23°C (73°F) and overnight lows around 14°C (57°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Sag Harbor Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 23°C (73°F)  

Chance of Rain 29%  

Precipitation 110 mm (4.3 in)  

Rainy days 9 days  

What to Wear in Sag Harbor in September

For Sag Harbor in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho.

What To Do in Sag Harbor in September

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

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

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 Sag Harbor's climate page.

More climate data for Sag Harbor

Temperature Rainfall

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