Oyster Bay source photograph

Weather · September

Oyster Bay weather in September

Average highs of 75°F, lows of 60°F and 3.7 in of rain, from 30 years of weather records.

September is Oyster Bay’s 4th warmest month, with average highs of 75°F and lows of 60°F. That is 7° cooler than August, and 14° above the yearly average high.

Average high
75°F
Average low
60°F
Precipitation
3.7 in
Wet days
8
Sunrise · sunset
6:34 AM · 7:04 PM

September across the year

  1. 39°25°Jan
  2. 41°26°Feb
  3. 48°33°Mar
  4. 58°42°Apr
  5. 68°51°May
  6. 77°61°Jun
  7. 83°68°Jul
  8. 82°67°Aug
  9. 75°60°Sep
  10. 64°48°Oct
  11. 53°38°Nov
  12. 44°31°Dec

High and low Rain

What to wear in September

  • Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 8 days this month.

September is good for

What’s on in Oyster Bay in September

See all upcoming events and school days off.

Around Oyster Bay

The Massapequa Preserve Dressed in Fall Foliage, Oyster Bay
The Massapequa Preserve Dressed in Fall FoliageSavidgeMichael · CC BY-SA 4.0
An Autumn Afternoon in Marjorie Post Park-Letterboxing, Oyster Bay
An Autumn Afternoon in Marjorie Post Park-LetterboxingSavidgeMichael · CC BY 4.0
Massapequa Lake 2021b, Oyster Bay
Massapequa Lake 2021bAntony-22 · CC BY-SA 4.0

See Oyster Bay

A look around town before you go.

Birdwatching in Oyster Bay Long Island NY video thumbnail

THINGS TO DO · YOUTUBE SHORT

Birdwatching in Oyster Bay Long Island NY

A local activity Short shared by Kibachan.

Watch on YouTube ↗
Oyster Bay Oyster Festival and Cold Spring Harbor in the Fall on Long Island video thumbnail

THINGS TO DO · YOUTUBE SHORT

Oyster Bay Oyster Festival and Cold Spring Harbor in the Fall on Long Island

A local activity Short shared by Paul Balzano.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August82°F67°F3.2 in
September75°F60°F3.7 in
October64°F48°F3.4 in

Planning a trip? See the best time to visit Oyster Bay and today’s forecast.

Questions

How hot does it get in Oyster Bay in September?

Average highs are 75°F and average lows 60°F, for a daily mean of 67°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Oyster Bay in September?

September averages 3.7 in of precipitation over about 8 days with at least 0.01 in. It is the wettest month of the year.

What time is sunset in Oyster Bay in September?

Around mid-September the sun rises about 6:34 AM and sets about 7:04 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Oyster Bay?

The mildest months for visiting are May, July, August. September is mild, with Halloween events.

NOAA U.S. Climate Normals 1991–2020, Farmingdale Ap station (4.3 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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