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SunnyDays

ERA5 almanac comparison — 8 years of real data

Anguilla vs Charleston: weather in August

Essentially a tie in August: Anguilla is 13% clear historically, Charleston is 12% clear (8-year ERA5 average) — within the noise. Avg high 84°F vs 85°F. Charleston also sees measurably more rain than Anguilla this month (62% vs 47% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.

What you are reading: 8-year historical averages, not a forecast. Either destination can still surprise you this specific August. For this week’s actual forecast, each destination links to its live page below.

Anguilla

AI

Clear days, August
13%
Sample size
n=248 days
Avg high
84°F
Early August (1st–15th)
7%
Late August (16th–end)
18%
Rain frequency
47% of days

Charleston

SC

Clear days, August
12%
Sample size
n=248 days
Avg high
85°F
Early August (1st–15th)
11%
Late August (16th–end)
12%
Rain frequency
62% of days
See this week’s live forecast →

Compare Anguilla vs Charleston in another month

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.