Atlanta weather in August: Atlanta, Georgia: normal highs, lows, rain and records for August
Atlanta in August has a normal high of 89°F and a normal low of 71°F, a daily mean of 80°F, falling from 90°F on the 1st to 87°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 4.30 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 22°C, 109 mm of precipitation in August.
- NOAA stationAtlanta Hartsfield International Airport
- Station IDUSW00013874
- Location33.63°N 84.44°W
- Elevation1,010 ft (308 m)
- From the center9 miles
- Population520,070
- Jan 54° 36°
- Feb 58° 39°
- Mar 66° 45°
- Apr 74° 53°
- May 81° 61°
- Jun 87° 69°
- Jul 90° 72°
- Aug 89° 71°
- Sep 84° 66°
- Oct 74° 55°
- Nov 64° 44°
- Dec 56° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Atlanta in August?
The normal high is 89°F and the normal low 71°F, for a daily mean of 80.2°F. August is 0.7°F cooler than July and 5.3°F warmer than September. August is the 2nd warmest month of the year in Atlanta and the 7th wettest. Across the month the normal high falls 3°F, from 90°F on August 1 to 87°F on August 31. From one year to the next August's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 78°F and 82°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 90°F | 72°F | 36% | 23% |
| August 8 | 90°F | 72°F | 35% | 22% |
| August 15 | 89°F | 72°F | 34% | 21% |
| August 22 | 89°F | 71°F | 32% | 20% |
| August 31 | 87°F | 70°F | 29% | 19% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 90°F | 72°F | 36% | 23% | 13 h 50 min |
| August 2 | 90°F | 72°F | 36% | 22% | 13 h 50 min |
| August 3 | 90°F | 72°F | 36% | 22% | 13 h 50 min |
| August 4 | 90°F | 72°F | 35% | 22% | 13 h 50 min |
| August 5 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 6 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 7 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 8 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 9 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 10 | 90°F | 72°F | 35% | 22% | 13 h 40 min |
| August 11 | 90°F | 72°F | 34% | 22% | 13 h 30 min |
| August 12 | 90°F | 72°F | 34% | 22% | 13 h 30 min |
| August 13 | 89°F | 72°F | 34% | 22% | 13 h 30 min |
| August 14 | 89°F | 72°F | 34% | 22% | 13 h 30 min |
| August 15 | 89°F | 72°F | 34% | 21% | 13 h 30 min |
| August 16 | 89°F | 72°F | 33% | 21% | 13 h 20 min |
| August 17 | 89°F | 71°F | 33% | 21% | 13 h 20 min |
| August 18 | 89°F | 71°F | 33% | 21% | 13 h 20 min |
| August 19 | 89°F | 71°F | 33% | 21% | 13 h 20 min |
| August 20 | 89°F | 71°F | 32% | 21% | 13 h 20 min |
| August 21 | 89°F | 71°F | 32% | 20% | 13 h 20 min |
| August 22 | 89°F | 71°F | 32% | 20% | 13 h 10 min |
| August 23 | 88°F | 71°F | 31% | 20% | 13 h 10 min |
| August 24 | 88°F | 71°F | 31% | 20% | 13 h 10 min |
| August 25 | 88°F | 71°F | 31% | 20% | 13 h 10 min |
| August 26 | 88°F | 71°F | 30% | 19% | 13 h 10 min |
| August 27 | 88°F | 70°F | 30% | 19% | 13 h |
| August 28 | 88°F | 70°F | 30% | 19% | 13 h |
| August 29 | 88°F | 70°F | 29% | 19% | 13 h |
| August 30 | 87°F | 70°F | 29% | 19% | 13 h |
| August 31 | 87°F | 70°F | 29% | 19% | 13 h |
- Normal high
- 89°FAugust average
- Normal low
- 71°FAugust average
- Precipitation
- 4.30 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 14
- Daylight
- 13 h 50 min to 13 hAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 30
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013874; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Atlanta in August?
On a given August day the chance of 0.01 inch or more is 33% on average, highest around August 1 (36%). In all, 4.30 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Atlanta, 14 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013874.
How humid and windy is Atlanta in August?
At 3 p.m. the normal temperature is 85°F with 52% relative humidity and a dew point of 65°F; at 6 a.m. it is 71°F with 86% humidity. The wind averages 7.0 mph, most often from the east-northeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 71°F | 66°F | 86% | 6.2 mph | 43% |
| 9 a.m. | 76°F | 67°F | 74% | 7.4 mph | 36% |
| noon | 82°F | 66°F | 59% | 8.2 mph | 21% |
| 3 p.m. | 85°F | 65°F | 52% | 8.4 mph | 18% |
| 6 p.m. | 82°F | 65°F | 56% | 8.2 mph | 35% |
| 9 p.m. | 77°F | 66°F | 68% | 6.3 mph | 43% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013874. 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 August in Atlanta?
The warmest August temperature on Atlanta's official record (since 1878) is 104°F, on August 22, 2007; the coldest is 55°F, on August 31, 1887. The wettest August brought 10.02 in (1920).
The August mean against the 1991-2020 normal of 80.2°F: 2021 80.3°F (+0.1), 2022 79.5°F (−0.7), 2023 82.6°F (+2.4), 2024 82.2°F (+2.0), 2025 78.2°F (−2.0), 2026 82.9°F (+2.7). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.3°F | +0.1°F | 6.96 in |
| 2022 | 79.5°F | −0.7°F | 6.79 in |
| 2023 | 82.6°F | +2.4°F | 5.24 in |
| 2024 | 82.2°F | +2.0°F | 0.80 in |
| 2025 | 78.2°F | −2.0°F | 4.58 in |
| 2026 | 82.9°F | +2.7°F | 2.28 in |
Source: records: ACIS, NWS threaded record ATLthr; recent months: ACIS, station USW00013874. Records and recent months use complete months only.
How does August in Atlanta compare across Georgia?
Across the 101 places PlainClimate covers in Georgia, August normal highs run from 76°F in Mountain City to 93°F in Folkston; Atlanta's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.