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SunnyDays

ERA5 almanac — 8 years of real data

Atlanta in June

Atlanta in June: rain frequency data not yet backfilled for this month, 86°F average high, 26% of days historically clear (n=240, ERA5 2018–2025).

Atlanta in June is historically a poor month for sun: only 26% of days clear across 8 years (n=240, avg high 86°F). September is the clearest month for Atlanta historically. Historical average, not a forecast.

What you are reading: 8-year historical averages from the ERA5 reanalysis, not a forecast. A month that is historically 90% clear can still be overcast on your specific trip. For this week’s actual forecast, see the live Atlanta page. Both can be true at once: “historically strong in this month; this particular week is not.” We label which is which.

Early vs. Late June

Clear-sky percentage for Atlanta in June, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early June
1st–15th		 27% n=120 86°F
Late June
16th–end		 26% n=120 86°F
Full month average 26% n=240 86°F

Bottom line

Atlanta is mostly overcast in June historically: only 26% of days are clear across 8 years (n=240), avg high 86°F. If you want sun in Atlanta, September is historically much better. Most visitors this month will see more clouds than sun.

→ See all destinations in September — historically the best month for sun in Atlanta.

Every month in Atlanta

Compare across all months with data. Numbers are historical clear-sky %.

Historical clear-sky % for Atlanta, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 0% n=248 All destinations →
February 2% n=226 All destinations →
March 11% n=248 All destinations →
April 24% n=240 All destinations →
May 32% n=248 All destinations →
June ← this page 26% n=240 All destinations →
July 15% n=248 All destinations →
August 20% n=248 All destinations →
September 40% n=240 All destinations →
October 34% n=248 All destinations →
November 6% n=240 All destinations →
December 1% n=248 All destinations →

Frequently asked

Is Atlanta good for sun in June?

Not usually. Atlanta is historically overcast in June: only 26% of days are clear (avg high 86°F, n=240 days, ERA5 2018–2025). September is historically far better for sun here.

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.