Fernandina Beach Weather in September
Average highs run from 88°F on September 1 to 84°F on September 30, and lows from 75°F to 71°F. Normal precipitation for the month is 7.19 in over about 13 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
- 86°F
- Average low
- 73°F
- Precipitation
- 7.19 in
- Record high
- 102°FSep 5, 1944
- Record low
- 49°FSep 25, 1982
- Chance of a freeze
- 0%
- Days of 90°F or more
- 3.7
- Daylight
- 12 h 47 min to 11 h 53 min
- Cloud cover
- 59%
- Humidity
- 79%
- Dew point
- 73°F
- Wind
- 11.2 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 | 88°F | 75°F | 99°F 1970 | 65°F 1966 | 43% |
| Sep 2 | 88°F | 75°F | 96°F 1970 | 65°F 1999 | 43% |
| Sep 3 | 88°F | 75°F | 97°F 1912 | 65°F 1934 | 43% |
| Sep 4 | 88°F | 75°F | 99°F 1944 | 64°F 1968 | 43% |
| Sep 5 | 87°F | 74°F | 102°F 1944 | 64°F 1967 | 43% |
| Sep 6 | 87°F | 74°F | 99°F 1941 | 65°F 1967 | 43% |
| Sep 7 | 87°F | 74°F | 96°F 1944 | 67°F 1966 | 43% |
| Sep 8 | 87°F | 74°F | 98°F 1939 | 67°F 1966 | 43% |
| Sep 9 | 87°F | 74°F | 99°F 1925 | 64°F 1932 | 42% |
| Sep 10 | 87°F | 74°F | 100°F 1939 | 57°F 2017 | 42% |
| Sep 11 | 87°F | 74°F | 98°F 1933 | 64°F 1914 | 42% |
| Sep 12 | 87°F | 74°F | 97°F 1920 | 64°F 1917 | 42% |
| Sep 13 | 87°F | 74°F | 97°F 1920 | 62°F 1917 | 42% |
| Sep 14 | 86°F | 74°F | 96°F 1920 | 61°F 1956 | 42% |
| Sep 15 | 86°F | 74°F | 97°F 1927 | 64°F 1913 | 42% |
| Sep 16 | 86°F | 74°F | 99°F 1927 | 53°F 1976 | 41% |
| Sep 17 | 86°F | 73°F | 96°F 1925 | 59°F 1967 | 41% |
| Sep 18 | 86°F | 73°F | 99°F 1988 | 61°F 1981 | 41% |
| Sep 19 | 86°F | 73°F | 98°F 1933 | 52°F 1981 | 41% |
| Sep 20 | 86°F | 73°F | 99°F 1933 | 55°F 1981 | 41% |
| Sep 21 | 85°F | 73°F | 99°F 1925 | 54°F 1897 | 40% |
| Sep 22 | 85°F | 73°F | 97°F 1931 | 56°F 1983 | 40% |
| Sep 23 | 85°F | 72°F | 96°F 1925 | 57°F 1966 | 39% |
| Sep 24 | 85°F | 72°F | 96°F 1925 | 54°F 1897 | 39% |
| Sep 25 | 85°F | 72°F | 96°F 1931 | 49°F 1982 | 38% |
| Sep 26 | 85°F | 72°F | 96°F 1961 | 58°F 1956 | 38% |
| Sep 27 | 84°F | 71°F | 93°F 1904 | 53°F 1956 | 37% |
| Sep 28 | 84°F | 71°F | 94°F 1970 | 59°F 1909 | 37% |
| Sep 29 | 84°F | 71°F | 91°F 1913 | 55°F 1962 | 36% |
| Sep 30 | 84°F | 71°F | 96°F 1959 | 53°F 1967 | 36% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- September 1
- sunrise 7:02 AM, sunset 7:49 PM
- September 30
- sunrise 7:19 AM, sunset 7:12 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00082944 (Fernandina Beach), public domain. Records: NOAA GHCN-Daily, station USC00082944, 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.