Atlanta weather in May

May in Atlanta: hot, rainy — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Atlanta🇺🇸 United States · US South · City84
  1. 62Jan
  2. 69Feb
  3. 79Mar
  4. 90Apr
  5. 84May
  6. 73Jun
  7. 64Jul
  8. 65Aug
  9. 80Sep
  10. 91Oct
  11. 77Nov
  12. 66Dec

#3 of 12 months in Atlanta · #489 of 1413 destinations to visit in May · comfort 84/100 (tier A)

Days
27°C
Nights
17°C
Wet days
9
Sun
10.5 h
Humidity
71%
Daylight
14 h
Atlanta, United States
Photo: K · Pexels

Traveller notes on Atlanta in May

May is the month Atlanta regulars point to over the summer: the serious humidity does not arrive this early, because the city sits well inland, and late May is normally pleasant rather than oppressive - though the odd hot, muggy day turns up in early June. The pollen that gives the city its yellow spring and its reputation peaks in early April, so by May the worst of the tree season has passed. Our row is a warning about rain rather than heat: 107mm across 9.4 days, which is thunderstorm rain rather than drizzle. The record: 27.1C days that feel like 29C, 16.9C nights and 10.5 hours of sun.
PollenPeaksInApril · May · 1 month ago · Read more on tripadvisor.co.uk ↗

Other months in Atlanta

Regulars describe genuinely extreme swings possible within the same month - downright hot days in the 80s Fahrenheit alongside genuinely cold ones below freezing, though most days land somewhere comfortably in between. Our row backs the moderate average across that range, 18.2C over 7.6C nights feeling 4C, with 79mm of rain across 5.7 days. The standard packing advice reflects the real range rather than a single guess: a warm coat alongside shorts and t-shirts, with plenty of layers to add or shed as the day's actual weather reveals itself. The record: humidity 70 percent, 7.4 hours of sun, a 16.3 kph wind and AQI 42.
EightiesOneDayFreezingTheNext · November · 1 month ago · Read more on Tripadvisor ↗
Locals call March unpredictable and give highs in the mid to upper fifties with lows in the low forties; our monthly average runs warmer at 19.6C over 8.7C, because their figures describe the start of the month and ours the whole of it. Either way they are right that it can produce both snow and seventy degrees. The end of March brings the azaleas, redbuds and dogwoods - and the pine pollen locals call the yellow curse, which coats everything into April and starts earlier here than visitors expect. Rain is the other feature, 120mm across 8.2 days with only 8.2 hours of sun. The record: humidity 69 percent, an 18.8 kph wind and AQI 44.
TheYellowCurse · March · 1 month ago · Read more on Tripadvisor ↗
Locals put September here firmly in summer and give the slope: around 30C at the start of the month and nearer 26C by the end, muggy for most of it, with no reliable break until October. Their advice is simply to come late rather than early. Our row averages 29.4C reading as 31C at 70 percent humidity over 19.6C nights. Rain is 92mm across 4.6 days, so twenty millimetres at a time - afternoon thunderstorms rather than drizzle, and they clear. Anything walked outdoors belongs to the morning or the evening this month. The record: a dew point of 17.1C, 9.8 hours of sun, a 13 kph wind and AQI 55.
WaitForTheLastWeek · September · 1 month ago · Read more on Tripadvisor ↗
Atlanta forum threads describe January weather as genuinely fickle, with highs most commonly landing somewhere in the 40s-50s Fahrenheit and lows in the 30s, but posters were direct that the same week could just as easily bring 60s-70s or drop into the teens-20s. Snow or ice events happen some years and skip others entirely, with no reliable pattern posters could point to. The consistent advice across threads: don't trust historical averages too heavily for planning specifics, and check the forecast close to travel dates rather than packing based on what a 'typical' January is supposed to look like here.
PeachtreeRegular · January · 1 month ago · Read more on Tripadvisor ↗

Year-round notes are on Atlanta's overview. Add your own note from Atlanta's card on the map.

Atlanta climate normals — May

Daytime high27°C / 81°F🥵 hot
Nighttime low17°C / 62°F
Feels like (high)29°C / 84°F
Rainfall107 mm / 4.2 in🌧 rainy
Rainy days9 days
Humidity71%💧 humid
Dew point14°C / 58°F
Sunshine10.5 h/day
Daylight13.9 h
Wind15 km/h / 10 mph
Air quality (US AQI)52🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Atlanta in May

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyAtlanta Jazz Festival(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Atlanta's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherAtlanta's best weather comes in April, May and October — separate windows, not one continuous season.

May includes Atlanta Jazz Festival.

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Best weatherFair weatherToughest weather

What's on in Atlanta in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Hazard

    Pine pollen season

    1 Mar – 10 May · usually

    For six weeks in spring the whole city turns yellow: cars, porches, water. Oak and pine counts here are among the highest in the country and anyone sensitive feels it in a day. Source ↗

  • Hazard

    Spring severe-storm season

    1 Mar – 15 May · usually

    North Georgia's tornado and hail season runs through spring, and the warnings here come overnight as often as in the afternoon. Hotels sound the alert; camping is the thing to think twice about. Source ↗

  • Festival

    Atlanta Jazz Festival

    23–26 May · usuallyMusic festivalCrowded

    The city puts on a free festival in Piedmont Park over Memorial Day weekend, one of the largest of its kind anywhere, and it marks the point where Atlanta's outdoor season properly starts. Source ↗

What's on around the world in May →

Nearby, and something's on

Within 300 km of Atlanta — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Atlanta?

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Atlanta in May — FAQ

Is May a good time to visit Atlanta?
May in Atlanta: hot, rainy — an excellent time to visit. It ranks #3 of 12 months for Atlanta on SeasonMap's comfort score (84/100).
What is the weather like in Atlanta in May?
In May, Atlanta averages a daily high of 27.1°C and a low of 16.9°C, with about 107 mm of rain over roughly 9.4 rainy days.
What is the air quality in Atlanta in May?
Atlanta has a mean US Air Quality Index of about 52 in May.

Within 300 km: Great Smoky Mountains National Park's Spring wildflowers around 25 Mar – 10 May.