Weather in Atlanta in March
United States · 20-year averages, March
A good month. March works. It is not the peak, but nothing about it fights you. Highs average 17.7 °C, lows 5.4 °C, and rain falls on 11 days — nothing in the month is working against you.
March ranks 5 of 12 in Atlanta: past the worst of the year but short of October, which is the month to book if the dates are open.
Rain on 11 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 17.7 °C days and 5.4 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 5 nights fall below freezing. Across the twenty years measured, the hottest March day reached 28.3 °C and the coldest night fell to -8.6 °C, and the wettest single day dropped 65 mm — roughly 54% of the month's rain in one day.
March is moderately variable: 26 mm in the driest year against 254 mm in the wettest, around an average of 120 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.
Wind is light at 5.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.
How March sits in the year
The month is on the way up: 4.3 °C warmer than February, and April adds another 4.5 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in March
11.9 hours of daylight, gaining 1 hours across the month. That is between Atlanta's extremes of 14.4 and 9.9 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 32.8 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
March in Atlanta versus nearby
If Atlanta is one option among several, the nearby comparison is worth making. Huntsville is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Montgomery is a better bet in March — 2.1 °C warmer, 1 day less rain.
So: March works, with October the better month by 17 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Atlanta
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 11.1 | -0.2 | 10 | 103 | 82 | 10.1 | 51 |
| February | 13.4 | 1.5 | 10 | 119 | 82 | 11 | 57 |
| March | 17.7 | 5.4 | 11 | 120 | 81 | 11.9 | 69 |
| April | 22.2 | 9.6 | 10 | 100 | 78 | 13 | 78 |
| May | 26.6 | 14.6 | 12 | 94 | 75 | 13.9 | 77 |
| June | 30.7 | 19.2 | 16 | 108 | 73 | 14.4 | 54 |
| July | 32.6 | 20.9 | 19 | 118 | 71 | 14.2 | 40 |
| August | 32.5 | 20.7 | 16 | 100 | 70 | 13.4 | 45 |
| September | 29.7 | 17.3 | 9 | 92 | 70 | 12.4 | 69 |
| October | 24.1 | 10.9 | 7 | 83 | 72 | 11.4 | 86 |
| November | 17.9 | 4.7 | 8 | 94 | 74 | 10.4 | 76 |
| December | 13 | 1.7 | 11 | 130 | 82 | 9.9 | 54 |
See all twelve months in Atlanta, or where else to go in March.
Planning the rest of the trip
- Flight time to Atlanta how long you are actually in the air
- Atlanta time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Atlanta keep training while you are there