Dauphin Island Weather in September
Average highs run from 87°F on September 1 to 82°F on September 30, and lows from 78°F to 72°F. Normal precipitation for the month is 5.24 in over about 8 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
- 85°F
- Average low
- 76°F
- Precipitation
- 5.24 in
- Record high
- 105°FSep 5, 1925
- Record low
- 41°FSep 30, 1967
- Chance of a freeze
- 0%
- Days of 90°F or more
- 4.7
- Daylight
- 12 h 46 min to 11 h 54 min
- Cloud cover
- 48%
- Humidity
- 77%
- Dew point
- 71°F
- Wind
- 7.8 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 87°F | 78°F | 96°F 1947 | 59°F 1946 | 32% |
| Sep 2 | 87°F | 78°F | 95°F 1945 | 60°F 1934 | 32% |
| Sep 3 | 87°F | 77°F | 98°F 1925 | 63°F 1952 | 32% |
| Sep 4 | 87°F | 77°F | 101°F 1925 | 60°F 1924 | 31% |
| Sep 5 | 87°F | 77°F | 105°F 1925 | 59°F 1934 | 31% |
| Sep 6 | 87°F | 77°F | 104°F 1925 | 57°F 1934 | 31% |
| Sep 7 | 87°F | 77°F | 98°F 1922 | 53°F 2011 | 30% |
| Sep 8 | 87°F | 77°F | 98°F 1925 | 53°F 2011 | 30% |
| Sep 9 | 86°F | 77°F | 97°F 1931 | 56°F 2011 | 30% |
| Sep 10 | 86°F | 77°F | 100°F 1954 | 56°F 2011 | 29% |
| Sep 11 | 86°F | 77°F | 97°F 1980 | 56°F 1956 | 29% |
| Sep 12 | 86°F | 76°F | 95°F 1921 | 50°F 1940 | 29% |
| Sep 13 | 86°F | 76°F | 97°F 1954 | 53°F 2017 | 29% |
| Sep 14 | 86°F | 76°F | 97°F 1921 | 53°F 2015 | 29% |
| Sep 15 | 86°F | 76°F | 98°F 1933 | 54°F 2015 | 29% |
| Sep 16 | 85°F | 76°F | 98°F 1933 | 55°F 1961 | 28% |
| Sep 17 | 85°F | 76°F | 100°F 1927 | 58°F 1961 | 28% |
| Sep 18 | 85°F | 75°F | 101°F 1925 | 50°F 1981 | 28% |
| Sep 19 | 85°F | 75°F | 101°F 1925 | 52°F 1981 | 28% |
| Sep 20 | 85°F | 75°F | 100°F 1925 | 51°F 1981 | 28% |
| Sep 21 | 84°F | 75°F | 104°F 1925 | 48°F 1918 | 28% |
| Sep 22 | 84°F | 75°F | 104°F 1925 | 47°F 1983 | 27% |
| Sep 23 | 84°F | 74°F | 104°F 1925 | 47°F 1983 | 27% |
| Sep 24 | 84°F | 74°F | 98°F 1921 | 49°F 1982 | 27% |
| Sep 25 | 84°F | 74°F | 96°F 1931 | 50°F 1975 | 27% |
| Sep 26 | 83°F | 74°F | 96°F 1922 | 48°F 1975 | 26% |
| Sep 27 | 83°F | 73°F | 97°F 1933 | 48°F 1975 | 26% |
| Sep 28 | 83°F | 73°F | 94°F 1941 | 47°F 1942 | 26% |
| Sep 29 | 83°F | 73°F | 95°F 2019 | 43°F 1967 | 26% |
| Sep 30 | 82°F | 72°F | 94°F 1933 | 41°F 1967 | 25% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (CDT).
- September 1
- sunrise 6:29 AM, sunset 7:15 PM
- September 30
- sunrise 6:45 AM, sunset 6:39 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00012172 (Dauphin Is #2), public domain. Records: NOAA GHCN-Daily, station USC00012813, 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.