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SunnyDays

ERA5 almanac — 8 years of real data

Palm Beach in August

Palm Beach in August is historically a poor month for sun: only 2% of days clear across 8 years (n=248, avg high 87°F). March is the clearest month for Palm Beach 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 Palm Beach 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 August

Clear-sky percentage for Palm Beach in August, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early August
1st–15th		 3% n=120 87°F
Late August
16th–end		 2% n=128 87°F
Full month average 2% n=248 87°F

Bottom line

Palm Beach is historically almost never clear in August: only 2% of days meet the clear bar across 8 years (n=248). Come back in March if you want clear skies here. Plan entirely around indoor or overcast-friendly activities.

→ See all destinations in March — historically the best month for sun in Palm Beach.

Every month in Palm Beach

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

Historical clear-sky % for Palm Beach, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 27% n=248 All destinations →
February 27% n=226 All destinations →
March 36% n=248 All destinations →
April 32% n=240 All destinations →
May 20% n=248 All destinations →
June 7% n=240 All destinations →
July 6% n=248 All destinations →
August ← this page 2% n=248 All destinations →
September 6% n=240 All destinations →
October 18% n=248 All destinations →
November 30% n=240 All destinations →
December 27% n=248 All destinations →

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.