Savannah, GA weather in September
In September, Savannah sees highs around 86°F and lows around 69°F: warm and oppressively humid, with some rain. There are about 10 days with rain.
- Normal high
- 86°F
- Normal low
- 69°F
- Wet days
- 10
- 4.3 in total
- Muggy days
- 23
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 89°F | 83°F |
| Normal low | 72°F | 65°F |
| Chance of a wet day | 36% | 29% |
| Sunrise / sunset | 6:59 am / 7:49 pm | 7:17 am / 7:11 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 68°F
- 9 am78°Fdew point 70°F
- Noon83°Fdew point 68°F
- 3 pm84°Fdew point 69°F
- 6 pm80°Fdew point 69°F
- 9 pm75°Fdew point 70°F
NOAA hourly normals (local standard time) from Savannah Hunter Fld (5 mi away); average wind 6 mph; clear or few clouds in 40% of daytime hours, mostly cloudy or overcast in 43%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F2 of 30
- Hot dayshigh 90°F or more10 of 30
- Muggy daysdaily mean dew point 65°F or more23 of 30
- Wet daysat least 0.01 in of rain or melted snow10 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 4.3 in; a dry September brings about 2.8 in and a wet one about 5.6 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, 1991-20202019: average high 92°F
- Coolest September2001: average high 83°F
- Wettest September1992: 8.4 in
- Driest September1991: 0.3 in
- Highest reading99°F (September 5, 2020)
- Lowest reading50°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 | 86°F | 79°F |
| Normal low | 73°F | 69°F | 59°F |
| Wet days | 13 | 10 | 7 |
| Comfortable days | 0 | 2 | 11 |
| Daylight | 13.3 h | 12.4 h | 11.4 h |
Highs change by -5°F from August and -7°F into October.
How Savannah ranks in September
- Normal high125th warmest of 378 cities; 4th of 8 in Georgia
- Wet days305th driest of 378
- Comfortable days277th most of 342
What to pack for Savannah in September
- Light, breathable clothing – highs near 86°F and about 23 muggy days
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
September has 1 heating degree days and 382 cooling degree days (base 65°F), 9% of the year's total heating and cooling demand.
Questions
How hot is Savannah in September?
The normal high is 86°F and the normal low is 69°F. From 1991 to 2020 the hottest September reading was 99°F (September 5, 2020).
Does it rain a lot in Savannah in September?
About 10 days in September have at least 0.01 in of precipitation, and the normal total is 4.4 in. The wettest September in 1991-2020 was in 1992 (8.4 in); the driest was in 1991 (0.4 in).
Is September a good time to visit Savannah?
September ranks 9th of 12 months on our comfort score for Savannah (44 out of 100). It has about 2 comfortable days and about 10 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Savannah Intl Airport (USW00003822), 7.2 mi WNW of the city center, 46 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Savannah Hunter Fld (USW00013824), 5.0 mi SSW of the city center, 56 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Savannah/Hilton Head Intl Airport (722070-03822), 6.8 mi WNW of the city center, 29 ft . Hourly observations, 1991-2020.