Savannah weather in September: Savannah, Georgia: normal highs, lows, rain and records for September
Savannah in September has a normal high of 86°F and a normal low of 69°F, a daily mean of 78°F, falling from 89°F on the 1st to 83°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 4.35 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 30°C and low of 21°C, 110 mm of precipitation in September.
- NOAA stationSavannah/Hilton Head International Airport
- Station IDUSW00003822
- Location32.13°N 81.21°W
- Elevation46 ft (14 m)
- From the center8 miles
- Population148,808
- Jan 61° 40°
- Feb 65° 43°
- Mar 71° 49°
- Apr 78° 55°
- May 85° 63°
- Jun 90° 71°
- Jul 92° 74°
- Aug 91° 73°
- Sep 86° 69°
- Oct 79° 59°
- Nov 70° 48°
- Dec 64° 43°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Savannah in September?
The normal high is 86°F and the normal low 69°F, for a daily mean of 77.7°F. September is 4.4°F cooler than August and 8.9°F warmer than October. September is the 4th warmest month of the year in Savannah and the 4th wettest. Across the month the normal high falls 6°F, from 89°F on September 1 to 83°F on September 30. From one year to the next September's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 76°F and 79°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 72°F | 37% | 24% |
| September 8 | 88°F | 71°F | 35% | 23% |
| September 15 | 87°F | 69°F | 32% | 21% |
| September 22 | 85°F | 68°F | 30% | 20% |
| September 30 | 83°F | 65°F | 28% | 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 | 89°F | 72°F | 37% | 24% | 12 h 50 min |
| September 2 | 89°F | 72°F | 37% | 24% | 12 h 50 min |
| September 3 | 89°F | 72°F | 37% | 24% | 12 h 50 min |
| September 4 | 89°F | 72°F | 37% | 24% | 12 h 50 min |
| September 5 | 88°F | 71°F | 36% | 23% | 12 h 40 min |
| September 6 | 88°F | 71°F | 36% | 23% | 12 h 40 min |
| September 7 | 88°F | 71°F | 35% | 23% | 12 h 40 min |
| September 8 | 88°F | 71°F | 35% | 23% | 12 h 40 min |
| September 9 | 88°F | 71°F | 35% | 22% | 12 h 40 min |
| September 10 | 88°F | 71°F | 34% | 22% | 12 h 30 min |
| September 11 | 87°F | 70°F | 34% | 22% | 12 h 30 min |
| September 12 | 87°F | 70°F | 33% | 22% | 12 h 30 min |
| September 13 | 87°F | 70°F | 33% | 21% | 12 h 30 min |
| September 14 | 87°F | 70°F | 33% | 21% | 12 h 30 min |
| September 15 | 87°F | 69°F | 32% | 21% | 12 h 20 min |
| September 16 | 86°F | 69°F | 32% | 21% | 12 h 20 min |
| September 17 | 86°F | 69°F | 32% | 21% | 12 h 20 min |
| September 18 | 86°F | 69°F | 31% | 20% | 12 h 20 min |
| September 19 | 86°F | 68°F | 31% | 20% | 12 h 20 min |
| September 20 | 86°F | 68°F | 31% | 20% | 12 h 10 min |
| September 21 | 85°F | 68°F | 31% | 20% | 12 h 10 min |
| September 22 | 85°F | 68°F | 30% | 20% | 12 h 10 min |
| September 23 | 85°F | 67°F | 30% | 19% | 12 h 10 min |
| September 24 | 85°F | 67°F | 30% | 19% | 12 h 10 min |
| September 25 | 85°F | 67°F | 29% | 19% | 12 h 10 min |
| September 26 | 84°F | 66°F | 29% | 19% | 12 h |
| September 27 | 84°F | 66°F | 29% | 19% | 12 h |
| September 28 | 84°F | 66°F | 28% | 18% | 12 h |
| September 29 | 84°F | 65°F | 28% | 18% | 12 h |
| September 30 | 83°F | 65°F | 28% | 18% | 12 h |
- Normal high
- 86°FSeptember average
- Normal low
- 69°FSeptember average
- Precipitation
- 4.35 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 10
- 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
- 27
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003822; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Savannah in September?
On a given September day the chance of 0.01 inch or more is 32% on average, highest around September 1 (37%). In all, 4.35 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Savannah, 10 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003822.
How humid and windy is Savannah in September?
At 3 p.m. the normal temperature is 81°F with 55% relative humidity and a dew point of 64°F; at 6 a.m. it is 66°F with 91% humidity. The wind averages 6.6 mph, most often from the east-northeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 66°F | 64°F | 91% | 5.0 mph | 54% |
| 9 a.m. | 73°F | 65°F | 76% | 7.6 mph | 52% |
| noon | 80°F | 64°F | 58% | 8.8 mph | 37% |
| 3 p.m. | 81°F | 64°F | 55% | 9.2 mph | 36% |
| 6 p.m. | 76°F | 65°F | 68% | 7.7 mph | 53% |
| 9 p.m. | 71°F | 66°F | 83% | 5.3 mph | 61% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003822. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Savannah?
The warmest September temperature on Savannah's official record (since 1874) is 102°F, on September 4, 1925; the coldest is 43°F, on September 30, 1967. The wettest September brought 22.88 in (1924).
The September mean against the 1991-2020 normal of 77.7°F: 2021 76.3°F (−1.4), 2022 75.8°F (−1.9), 2023 77.6°F (−0.1), 2024 78.2°F (+0.5), 2025 76.5°F (−1.2), 2026 79.0°F (+1.3). 2 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.3°F | −1.4°F | 9.52 in |
| 2022 | 75.8°F | −1.9°F | 4.98 in |
| 2023 | 77.6°F | −0.1°F | 1.85 in |
| 2024 | 78.2°F | +0.5°F | 6.49 in |
| 2025 | 76.5°F | −1.2°F | 0.68 in |
| 2026 | 79.0°F | +1.3°F | 3.86 in |
Source: records: ACIS, NWS threaded record SAVthr; recent months: ACIS, station USW00003822. Records and recent months use complete months only.
How does September in Savannah compare across Georgia?
Across the 101 places PlainClimate covers in Georgia, September normal highs run from 72°F in Mountain City to 90°F in Bainbridge; Savannah's is 86°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.