Atlanta, GA weather in August
Expect hot, oppressively humid weather with frequent rain in Atlanta in August, with highs near 89°F and lows near 71°F. Rain falls on about 10 days. It is one of the warmest months in Atlanta.
- Normal high
- 89°F
- Normal low
- 71°F
- Wet days
- 10
- 4.3 in total
- Muggy days
- 25
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 90°F | 87°F |
| Normal low | 72°F | 70°F |
| Chance of a wet day | 35% | 30% |
| Sunrise / sunset | 6:49 am / 8:38 pm | 7:10 am / 8:04 pm |
| Daylight | 13.8 h | 12.9 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 August day
- 6 am72°Fdew point 68°F
- 9 am78°Fdew point 69°F
- Noon84°Fdew point 68°F
- 3 pm86°Fdew point 67°F
- 6 pm84°Fdew point 67°F
- 9 pm79°Fdew point 68°F
NOAA hourly normals (local standard time) from Atlanta Hartsfield Intl Airport (9 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Hot dayshigh 90°F or more14 of 31
- Muggy daysdaily mean dew point 65°F or more25 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 4.3 in; a dry August brings about 3.1 in and a wet one about 5.7 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202007: average high 96°F
- Coolest August1992: average high 84°F
- Wettest August2006: 8.7 in
- Driest August2002: 0.8 in
- Highest reading104°F (August 22, 2007)
- Lowest reading55°F (August 29, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 90°F | 89°F | 84°F |
| Normal low | 72°F | 71°F | 66°F |
| Wet days | 12 | 10 | 7 |
| Comfortable days | 0 | 0 | 5 |
| Daylight | 14.1 h | 13.4 h | 12.4 h |
Highs change by -1°F from July and -5°F into September.
Nearby alternatives in August
- Cooler: Gatlinburg, TN145 mi · high 82°F · 14 wet days
How Atlanta ranks in August
- Normal high149th warmest of 378 cities; 7th of 8 in Georgia
- Wet days269th driest of 378
- Comfortable days247th most of 341
What to pack for Atlanta in August
- Light, breathable clothing – highs near 89°F and about 25 muggy days
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
August has 0 heating degree days and 470 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Atlanta in August?
The normal high is 89°F and the normal low is 71°F. From 1991 to 2020 the hottest August reading was 104°F (August 22, 2007).
Does it rain a lot in Atlanta in August?
About 10 days in August have at least 0.01 in of precipitation, and the normal total is 4.3 in. The wettest August in 1991-2020 was in 2006 (8.7 in); the driest was in 2002 (0.8 in).
Is August a good time to visit Atlanta?
August ranks 11th of 12 months on our comfort score for Atlanta (42 out of 100). It has almost no comfortable days and about 14 days at 90°F or hotter. The best month is April.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Atlanta Hartsfield Intl Airport (USW00013874), 8.8 mi SSW of the city center, 1,010 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Hartsfield-Jackson Atlanta Intl Airport (722190-13874), 8.8 mi SSW of the city center, 1,011 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).