Gainesville weather in September: Gainesville, Florida: normal highs, lows, rain and records for September
Gainesville in September has a normal high of 88°F and a normal low of 69°F, a daily mean of 79°F, falling from 90°F on the 1st to 86°F by the 30th. Measurable precipitation falls on 11 days in a normal September, 5.05 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 21°C, 128 mm of precipitation in September.
- NOAA stationGainesville Regional Airport
- Station IDUSW00012816
- Location29.69°N 82.28°W
- Elevation123 ft (38 m)
- From the center4 miles
- Population148,720
- Jan 67° 43°
- Feb 71° 46°
- Mar 76° 50°
- Apr 82° 56°
- May 87° 63°
- Jun 90° 70°
- Jul 91° 72°
- Aug 91° 72°
- Sep 88° 69°
- Oct 82° 61°
- Nov 75° 51°
- Dec 69° 45°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Gainesville in September?
The normal high is 88°F and the normal low 69°F, for a daily mean of 78.8°F. September is 2.5°F cooler than August and 7.4°F warmer than October. September is the 4th warmest month of the year in Gainesville and the 4th wettest. Across the month the normal high falls 4°F, from 90°F on September 1 to 86°F on September 30. From one year to the next September's mean temperature typically moves about 1.4°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 77°F and 80°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 45%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 90°F | 71°F | 45% | 29% |
| September 8 | 89°F | 71°F | 42% | 26% |
| September 15 | 88°F | 70°F | 38% | 24% |
| September 22 | 87°F | 68°F | 35% | 21% |
| September 30 | 86°F | 66°F | 31% | 18% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 90°F | 71°F | 45% | 29% | 12 h 50 min |
| September 2 | 90°F | 71°F | 45% | 28% | 12 h 50 min |
| September 3 | 90°F | 71°F | 44% | 28% | 12 h 40 min |
| September 4 | 89°F | 71°F | 44% | 28% | 12 h 40 min |
| September 5 | 89°F | 71°F | 43% | 27% | 12 h 40 min |
| September 6 | 89°F | 71°F | 43% | 27% | 12 h 40 min |
| September 7 | 89°F | 71°F | 42% | 27% | 12 h 40 min |
| September 8 | 89°F | 71°F | 42% | 26% | 12 h 40 min |
| September 9 | 89°F | 71°F | 41% | 26% | 12 h 30 min |
| September 10 | 89°F | 71°F | 41% | 25% | 12 h 30 min |
| September 11 | 89°F | 70°F | 40% | 25% | 12 h 30 min |
| September 12 | 89°F | 70°F | 40% | 25% | 12 h 30 min |
| September 13 | 89°F | 70°F | 39% | 25% | 12 h 30 min |
| September 14 | 88°F | 70°F | 39% | 24% | 12 h 20 min |
| September 15 | 88°F | 70°F | 38% | 24% | 12 h 20 min |
| September 16 | 88°F | 70°F | 38% | 23% | 12 h 20 min |
| September 17 | 88°F | 69°F | 37% | 23% | 12 h 20 min |
| September 18 | 88°F | 69°F | 37% | 23% | 12 h 20 min |
| September 19 | 88°F | 69°F | 36% | 22% | 12 h 20 min |
| September 20 | 88°F | 69°F | 36% | 22% | 12 h 10 min |
| September 21 | 88°F | 69°F | 35% | 22% | 12 h 10 min |
| September 22 | 87°F | 68°F | 35% | 21% | 12 h 10 min |
| September 23 | 87°F | 68°F | 34% | 21% | 12 h 10 min |
| September 24 | 87°F | 68°F | 34% | 21% | 12 h 10 min |
| September 25 | 87°F | 68°F | 33% | 20% | 12 h 10 min |
| September 26 | 87°F | 68°F | 33% | 20% | 12 h |
| September 27 | 87°F | 67°F | 32% | 19% | 12 h |
| September 28 | 86°F | 67°F | 32% | 19% | 12 h |
| September 29 | 86°F | 67°F | 31% | 19% | 12 h |
| September 30 | 86°F | 66°F | 31% | 18% | 12 h |
- Normal high
- 88°FSeptember average
- Normal low
- 69°FSeptember average
- Precipitation
- 5.05 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 13
- Daylight
- 12 h 50 min to 12 hSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 29
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012816; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Gainesville in September?
On a given September day the chance of 0.01 inch or more is 38% on average, highest around September 1 (45%). In all, 5.05 in falls on 11 days of a normal September, 1 of them with an inch or more.
In a normal September in Gainesville, 13 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012816.
What are the records for September in Gainesville?
The warmest September temperature on Gainesville's official record (since 1890) is 99°F, on September 2, 1907; the coldest is 48°F, on September 22, 1897. The wettest September brought 19.91 in (1894).
The September mean against the 1991-2020 normal of 78.8°F: 2021 78.5°F (−0.3), 2022 78.4°F (−0.4), 2023 79.0°F (+0.2), 2024 79.4°F (+0.6), 2025 79.5°F (+0.7), 2026 79.6°F (+0.8). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 78.5°F | −0.3°F | 8.67 in |
| 2022 | 78.4°F | −0.4°F | 3.76 in |
| 2023 | 79.0°F | +0.2°F | 3.80 in |
| 2024 | 79.4°F | +0.6°F | 7.61 in |
| 2025 | 79.5°F | +0.7°F | 3.43 in |
| 2026 | 79.6°F | +0.8°F | 0.93 in |
Source: records: ACIS, NWS threaded record GNVthr; recent months: ACIS, station USW00012816. Records and recent months use complete months only.
How does September in Gainesville compare across Florida?
Across the 106 places PlainClimate covers in Florida, September normal highs run from 86°F in Jacksonville Beach to 92°F in Plant City; Gainesville's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Gainesville in August91°F by day, 72°F at night
- Gainesville in October82°F by day, 61°F at night
- Gainesville through the yearEvery month, frost dates, records and recent years
- Florida in SeptemberThe statewide normal and the warmest and coolest places
- Plant City: Florida's warmest Septembernormal high 92°F