Atlanta is at its most pleasant from mid April to May, and again from October to early November. For sun, aim for late May to June; for walking, go from February to April.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
The sun season here runs from late May to June, with a second spell from late August to early September. It peaks in early June, at 69. The weakest stretch is from mid November to March, when it drops to 0, mostly because it is too cool. The clearest skies come in November, when the sky is typically 44% covered at midday (partly cloudy).
For being outside, go from mid April to May, with a second spell from October to early November. It peaks in late April, at 74. Avoid mid and late July for this: it falls to 3, mostly because it is too hot.
The walking season here runs from February to April, with a second spell from mid October to November. It peaks in late March, at 76. The weakest stretch is from late June to August, when it drops to 0, mostly because it is too warm.
The year, measured
The average temperature in Atlanta over the whole year is 17°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 3°C. Atlanta has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 29% in January, the wettest. Winds in Atlanta are highest in March, averaging 2.9 m/s (10 km/h), and lightest in July, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Atlanta come in October, when the sky is typically 37% covered; February is the cloudiest month, at 54%.
Month by month Atlanta climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 10°C | 3°C | 5°C | 29% | 49% | 2.8 m/s | 12 | 0 | 38 |
| February | 14°C | 7°C | 10°C | 25% | 54% | 2.8 m/s | 31 | 1 | 61 |
| March | 17°C | 9°C | 14°C | 28% | 47% | 2.9 m/s | 48 | 3 | 71 |
| April | 21°C | 12°C | 18°C | 24% | 41% | 2.7 m/s | 66 | 16 | 64 |
| May | 25°C | 18°C | 24°C | 25% | 46% | 2.4 m/s | 63 | 46 | 34 |
| June | 29°C | 22°C | 30°C | 26% | 45% | 2.1 m/s | 28 | 64 | 6 |
| July | 30°C | 23°C | 33°C | 24% | 43% | 1.9 m/s | 6 | 51 | 0 |
| August | 30°C | 22°C | 32°C | 24% | 45% | 1.9 m/s | 12 | 55 | 2 |
| September | 28°C | 19°C | 28°C | 23% | 40% | 1.9 m/s | 38 | 57 | 17 |
| October | 23°C | 14°C | 21°C | 20% | 37% | 2.1 m/s | 71 | 28 | 55 |
| November | 16°C | 8°C | 13°C | 23% | 42% | 2.3 m/s | 43 | 4 | 70 |
| December | 12°C | 6°C | 8°C | 29% | 51% | 2.6 m/s | 19 | 0 | 53 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Atlanta weather by season
Year round, Atlanta has days of about 10°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 3°C to 23°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around January and least likely around October. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Atlanta weather in winterDecember to February
Winter in Atlanta has typical daily highs of about 12°C and lows of about 5°C, with a 28% chance of rain on a given day.
Atlanta weather in springMarch to May
Spring in Atlanta has typical daily highs of about 21°C and lows of about 13°C, with a 25% chance of rain on a given day.
Atlanta weather in summerJune to August
Summer in Atlanta has typical daily highs of about 30°C and lows of about 22°C, with a 25% chance of rain on a given day.
Atlanta weather in autumnSeptember to November
Autumn in Atlanta has typical daily highs of about 22°C and lows of about 14°C, with a 22% chance of rain on a given day.
When is the rainy season in Atlanta?
Atlanta has no sharply defined rainy season: the chance of rain on a given day runs from 20% in October, the driest month, to 29% in January, the wettest.
What time of year is Atlanta windiest?
Winds in Atlanta are highest in March, averaging 2.9 m/s (10 km/h), and lightest in July, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Atlanta year round?
The average temperature in Atlanta over the whole year is 17°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 3°C.
Where to go instead in mid July, the weakest time here for being outside
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.