East Hampton climate

East Hampton Weather in September

NOAA 1991-2020 normals for Hartford Brainard Fld, 21.6 km from East Hampton

Average highs run from 81°F on September 1 to 70°F on September 30, and lows from 61°F to 50°F. Normal precipitation for the month is 3.97 in over about 10 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at East Hampton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
56°F
Precipitation
3.97 in
Record high
97°FSep 8, 2015
Record low
33°FSep 22, 2020
Chance of a freeze
0%
Days of 90°F or more
1.0
Daylight
13 h 07 min to 11 h 47 min
Cloud cover
53%
Humidity
75%
Dew point
56°F
Wind
4.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 181°F61°F93°F 201045°F 200931%0%
Sep 280°F61°F92°F 201540°F 201731%0%
Sep 380°F61°F92°F 201546°F 202431%0%
Sep 480°F60°F92°F 201848°F 202431%0%
Sep 579°F60°F92°F 202346°F 200032%0%
Sep 679°F60°F94°F 201844°F 200032%0%
Sep 779°F59°F94°F 202342°F 200032%0%
Sep 879°F59°F97°F 201545°F 202532%0%
Sep 978°F59°F92°F 201642°F 201332%0%
Sep 1078°F58°F90°F 201645°F 200333%0%
Sep 1178°F58°F93°F 201342°F 201233%0%
Sep 1277°F58°F93°F 200541°F 200633%0%
Sep 1377°F57°F92°F 200544°F 200233%0%
Sep 1476°F57°F91°F 201646°F 201433%0%
Sep 1576°F56°F84°F 201542°F 200134%0%
Sep 1676°F56°F87°F 201539°F 200134%0%
Sep 1775°F56°F89°F 201540°F 200034%0%
Sep 1875°F55°F86°F 201538°F 201334%0%
Sep 1974°F55°F88°F 202438°F 201934%0%
Sep 2074°F54°F85°F 201637°F 202035%0%
Sep 2174°F54°F85°F 201635°F 202035%0%
Sep 2273°F54°F86°F 201633°F 202035%0%
Sep 2373°F53°F87°F 201739°F 201436%0%
Sep 2472°F53°F92°F 201738°F 202236%0%
Sep 2572°F52°F89°F 201739°F 201236%0%
Sep 2672°F52°F88°F 200739°F 201636%0%
Sep 2771°F51°F89°F 201735°F 200037%0%
Sep 2871°F51°F84°F 201436°F 200037%0%
Sep 2970°F51°F83°F 201533°F 200037%0%
Sep 3070°F50°F81°F 202534°F 200037%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at East Hampton, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:16 AM, sunset 7:23 PM
September 30
sunrise 6:46 AM, sunset 6:33 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014752 (Hartford Brainard Fld), public domain. Records: NOAA GHCN-Daily, station USW00054788, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.