Seward Weather in September
Average highs run from 60°F on September 1 to 51°F on September 30, and lows from 47°F to 39°F. Normal precipitation for the month is 9.90 in over about 17 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 56°F
- Average low
- 43°F
- Precipitation
- 9.90 in
- Record high
- 84°FSep 9, 1910
- Record low
- 26°FSep 25, 1946
- Chance of a freeze
- 18%
- Daylight
- 14 h 07 min to 11 h 30 min
- Cloud cover
- 74%
- Humidity
- 89%
- Dew point
- 40°F
- Wind
- 8.9 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Sep 1 | 60°F | 47°F | 73°F 2016 | 35°F 1922 | 54% | 0% |
| Sep 2 | 60°F | 47°F | 75°F 1937 | 29°F 1944 | 54% | 0% |
| Sep 3 | 59°F | 47°F | 73°F 1996 | 37°F 1922 | 55% | 0% |
| Sep 4 | 59°F | 47°F | 69°F 2002 | 35°F 1913 | 55% | 0% |
| Sep 5 | 59°F | 46°F | 70°F 1942 | 36°F 1943 | 55% | 0% |
| Sep 6 | 59°F | 46°F | 73°F 1942 | 32°F 1944 | 55% | 0% |
| Sep 7 | 58°F | 46°F | 72°F 1942 | 37°F 1913 | 56% | 0% |
| Sep 8 | 58°F | 45°F | 80°F 1910 | 35°F 1908 | 56% | 0% |
| Sep 9 | 58°F | 45°F | 84°F 1910 | 31°F 1943 | 56% | 0% |
| Sep 10 | 57°F | 45°F | 78°F 1910 | 31°F 1970 | 56% | 0% |
| Sep 11 | 57°F | 45°F | 75°F 2018 | 33°F 1980 | 56% | 0% |
| Sep 12 | 57°F | 44°F | 76°F 2018 | 29°F 1934 | 57% | 0% |
| Sep 13 | 57°F | 44°F | 76°F 2018 | 32°F 1917 | 57% | 0% |
| Sep 14 | 56°F | 44°F | 71°F 2019 | 34°F 1948 | 57% | |
| Sep 15 | 56°F | 44°F | 75°F 1914 | 31°F 1944 | 57% | |
| Sep 16 | 56°F | 43°F | 72°F 2010 | 32°F 1942 | 57% | |
| Sep 17 | 55°F | 43°F | 70°F 1954 | 32°F 1943 | 57% | |
| Sep 18 | 55°F | 43°F | 70°F 2010 | 31°F 1914 | 57% | |
| Sep 19 | 55°F | 43°F | 68°F 1929 | 29°F 1914 | 57% | |
| Sep 20 | 54°F | 42°F | 66°F 1919 | 32°F 1929 | 57% | |
| Sep 21 | 54°F | 42°F | 68°F 1913 | 31°F 1933 | 57% | |
| Sep 22 | 54°F | 42°F | 65°F 1919 | 31°F 1992 | 57% | |
| Sep 23 | 54°F | 41°F | 66°F 1952 | 30°F 1914 | 57% | |
| Sep 24 | 53°F | 41°F | 66°F 1945 | 30°F 1912 | 57% | |
| Sep 25 | 53°F | 41°F | 68°F 1919 | 26°F 1946 | 57% | |
| Sep 26 | 53°F | 41°F | 66°F 1912 | 27°F 1908 | 57% | |
| Sep 27 | 52°F | 40°F | 65°F 1912 | 28°F 1923 | 57% | |
| Sep 28 | 52°F | 40°F | 65°F 1912 | 28°F 1923 | 56% | |
| Sep 29 | 52°F | 40°F | 67°F 1912 | 31°F 1930 | 56% | |
| Sep 30 | 51°F | 39°F | 67°F 1954 | 30°F 1909 | 56% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (AKDT).
- September 1
- sunrise 6:53 AM, sunset 9:00 PM
- September 30
- sunrise 8:02 AM, sunset 7:32 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00026438 (Seward AP), public domain. Records: NOAA GHCN-Daily, station USW00026438, 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.