South Berwick climate

South Berwick Weather in September

NOAA 1991-2020 normals for Cape Neddick, 13.8 km from South Berwick

Average highs run from 76°F on September 1 to 65°F on September 30, and lows from 56°F to 46°F. Normal precipitation for the month is 4.30 in over about 8 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 South Berwick, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
71°F
Average low
51°F
Precipitation
4.30 in
Record high
96°FSep 9, 2002
Record low
28°FSep 29, 2000
Chance of a freeze
6%
Daylight
13 h 11 min to 11 h 46 min
Cloud cover
54%
Humidity
76%
Dew point
53°F
Wind
4.0 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 176°F56°F94°F 201038°F 200224%0%
Sep 276°F56°F94°F 201040°F 201724%0%
Sep 376°F56°F92°F 201843°F 200124%0%
Sep 475°F55°F90°F 202347°F 200724%0%
Sep 575°F55°F91°F 202339°F 200024%0%
Sep 675°F55°F92°F 201837°F 200024%0%
Sep 774°F55°F95°F 202339°F 200024%0%
Sep 874°F54°F92°F 200745°F 201324%0%
Sep 974°F54°F96°F 200238°F 201324%0%
Sep 1073°F54°F94°F 200240°F 200324%0%
Sep 1173°F53°F93°F 201340°F 200825%0%
Sep 1273°F53°F87°F 200540°F 200625%0%
Sep 1372°F53°F88°F 202440°F 200225%0%
Sep 1472°F52°F86°F 200540°F 201925%0%
Sep 1571°F52°F85°F 202435°F 202025%0%
Sep 1671°F51°F89°F 202438°F 200126%0%
Sep 1771°F51°F90°F 202435°F 201126%0%
Sep 1870°F51°F88°F 201536°F 200726%0%
Sep 1970°F50°F83°F 201535°F 201426%0%
Sep 2069°F50°F84°F 201631°F 201427%0%
Sep 2169°F50°F85°F 201932°F 202027%0%
Sep 2268°F49°F86°F 201935°F 202027%0%
Sep 2368°F49°F88°F 201941°F 200828%0%
Sep 2468°F48°F89°F 201739°F 200828%0%
Sep 2567°F48°F89°F 201736°F 201228%0%
Sep 2667°F48°F90°F 200733°F 200928%0%
Sep 2766°F47°F89°F 201733°F 201529%0%
Sep 2866°F47°F86°F 201433°F 200029%0%
Sep 2966°F46°F82°F 201528°F 200029%0%
Sep 3065°F46°F79°F 202431°F 200030%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at South Berwick, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:07 AM, sunset 7:18 PM
September 30
sunrise 6:40 AM, sunset 6:26 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00171131 (Cape Neddick), public domain. Records: NOAA GHCN-Daily, station USW00054791, 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.