Atlanta weather in January
January in Atlanta: cool, rainy, with clean air — a good time to visit.
#11 of 12 months in Atlanta · #350 of 604 destinations to visit in January · comfort 65/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Atlanta climate normals — January
| Daytime high | 12°C / 54°F | 🙂 cool |
|---|---|---|
| Nighttime low | 3°C / 38°F | |
| Feels like (high) | 10°C / 50°F | |
| Rainfall | 121 mm / 4.8 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 2°C / 36°F | |
| Sunshine | 6.3 h/day | |
| Daylight | 10.2 h | |
| Wind | 19 km/h / 12 mph | |
| Snowfall | 1.3 cm / 0.5 in | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Atlanta in January — FAQ
- Is January a good time to visit Atlanta?
- January in Atlanta: cool, rainy, with clean air — a good time to visit. It ranks #11 of 12 months for Atlanta on SeasonMap's comfort score (65/100).
- What is the weather like in Atlanta in January?
- In January, Atlanta averages a daily high of 12.3°C and a low of 3.4°C, with about 121 mm of rain over roughly 11.2 rainy days.
- What is the air quality in Atlanta in January?
- Atlanta has a mean US Air Quality Index of about 37 in January.
- Does it snow in Atlanta in January?
- Atlanta sees roughly 1.3 cm of snowfall in January.