Gainesville, FL weather in September
In September, Gainesville sees highs around 88°F and lows around 69°F: hot and oppressively humid, with frequent rain. Expect about 11 wet days.
- Normal high
- 88°F
- Normal low
- 69°F
- Wet days
- 11
- 5.0 in total
- Muggy days
- 27
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 90°F | 86°F |
| Normal low | 71°F | 66°F |
| Chance of a wet day | 44% | 32% |
| Sunrise / sunset | 7:06 am / 7:51 pm | 7:22 am / 7:16 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical September day
- 6 am71°Fdew point 69°F
- 9 am78°Fdew point 72°F
- Noon85°Fdew point 71°F
- 3 pm86°Fdew point 70°F
- 6 pm81°Fdew point 71°F
- 9 pm75°Fdew point 71°F
NOAA hourly normals (local standard time) from Cross City Airport (47 mi away); average wind 5 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 30
- Hot dayshigh 90°F or more13 of 30
- Muggy daysdaily mean dew point 65°F or more27 of 30
- Wet daysat least 0.01 in of rain or melted snow11 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 5.0 in; a dry September brings about 2.4 in and a wet one about 7.2 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202018: average high 93°F
- Coolest September2001: average high 85°F
- Wettest September2004: 16.4 in
- Driest September2008: 0.5 in
- Highest reading97°F (September 5, 2020)
- Lowest reading52°F (September 30, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 91°F | 88°F | 82°F |
| Normal low | 72°F | 69°F | 61°F |
| Wet days | 16 | 11 | 7 |
| Comfortable days | 0 | 0 | 6 |
| Daylight | 13.2 h | 12.3 h | 11.4 h |
Highs change by -3°F from August and -6°F into October.
Nearby alternatives in September
- Drier: Macon, GA233 mi · high 88°F · 7 wet days
How Gainesville ranks in September
- Normal high99th warmest of 378 cities; 17th of 23 in Florida
- Wet days336th driest of 378
- Comfortable days304th most of 342
What to pack for Gainesville in September
- Light, breathable clothing – highs near 88°F and about 27 muggy days
- A rain jacket or umbrella – rain on about 11 days
Heating and cooling
September has 0 heating degree days and 413 cooling degree days (base 65°F), 11% of the year's total heating and cooling demand.
Questions
How hot is Gainesville in September?
The normal high is 88°F and the normal low is 69°F. From 1991 to 2020 the hottest September reading was 97°F (most recently on September 5, 2020).
Does it rain a lot in Gainesville in September?
About 11 days in September have at least 0.01 in of precipitation, and the normal total is 5.1 in. The wettest September in 1991-2020 was in 2004 (16.5 in); the driest was in 2008 (0.5 in).
Is September a good time to visit Gainesville?
September ranks 9th of 12 months on our comfort score for Gainesville (40 out of 100). It has almost no comfortable days and about 13 days at 90°F or hotter. The best months are February, March and November.
Where the numbers come from
- Temperature, rain and frost dates: Gainesville Rgnl Airport (USW00012816), 4.1 mi NE of the city center, 123 ft (55 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: High Springs (USC00083956), 20 mi NW of the city center, 65 ft (113 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Cross City Airport (USW00012833), 47 mi W of the city center, 38 ft (140 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Cross City Airport (722120-12833), 47 mi W of the city center, 38 ft (140 ft lower than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).