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SunnyDays

ERA5 almanac — 8 years of real data

Exuma in October

Exuma in October: 56% of days see measurable rain, 83°F average high, 12% of days historically clear (n=248, ERA5 2018–2025).

Exuma in October is historically a poor month for sun: only 12% of days clear across 8 years (n=248, avg high 83°F). April is the clearest month for Exuma 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 Exuma 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 October

Clear-sky percentage for Exuma in October, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early October
1st–15th		 10% n=120 83°F
Late October
16th–end		 13% n=128 83°F
Full month average 12% n=248 83°F

Sunshine & warmth in October

A second measure using actual sunshine hours (ERA5 sunshine_duration), not the daily weather code. A Lowcountry day with 12 hours of sun and a 25-minute afternoon storm is counted below as a warm, sunny day — because it was. How we define this.

Sunshine-based metrics for Exuma in October. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early October
1st–15th		 97% n=120
Late October
16th–end		 92% n=128
Full month average 94% n=248
11.1 h median sunshine per day 91% of days exceed 8 h sunshine 56% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 12%. Sunshine-based “warm & sunny”: 94%. The 82-point gap is from brief afternoon convective storms that stamp the whole day as “rain” in the WMO code but leave the bulk of the sunshine untouched.

Bottom line

Exuma is a poor choice for sun in October: just 12% of days clear historically (n=248). April is the historically strongest month for sun here. The 8-year record is consistent — this is not a fluke bad stretch.

→ See all destinations in April — historically the best month for sun in Exuma.

Every month in Exuma

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

Historical clear-sky % for Exuma, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 38% n=248 All destinations →
February 39% n=226 All destinations →
March 45% n=248 All destinations →
April 46% n=240 All destinations →
May 27% n=248 All destinations →
June 20% n=240 All destinations →
July 25% n=248 All destinations →
August 18% n=248 All destinations →
September 20% n=240 All destinations →
October ← this page 12% n=248 All destinations →
November 25% n=240 All destinations →
December 37% n=248 All destinations →

Frequently asked

Does it rain in Exuma in October?

Yes, frequently. In Exuma, 56% of days in October see measurable rain, based on 8 years of ERA5 historical data (n=248 days, 2018–2025). This is a historical average, not a forecast.

Is Exuma good for sun in October?

Not usually. Exuma is historically overcast in October: only 12% of days are clear (avg high 83°F, n=248 days, ERA5 2018–2025). April 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.