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SunnyDays

ERA5 almanac — 8 years of real data

Exuma in March

Exuma in March: 19% of days see measurable rain, 77°F average high, 45% of days historically clear (n=248, ERA5 2018–2025).

Exuma in March is a mixed month for sun: 45% of days historically clear (n=248, avg high 77°F). The outcome varies year to year — check the early/late split below. 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 March

Clear-sky percentage for Exuma in March, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early March
1st–15th		 47% n=120 77°F
Late March
16th–end		 43% n=128 77°F
Full month average 45% n=248 77°F

Sunshine & warmth in March

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 March. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early March
1st–15th		 98% n=120
Late March
16th–end		 99% n=128
Full month average 99% n=248
11.6 h median sunshine per day 96% of days exceed 8 h sunshine 19% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 45%. Sunshine-based “warm & sunny”: 99%. The 54-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 in March is genuinely mixed: 45% of days historically clear (n=248), avg high 77°F — roughly even odds. The outcome varies year to year; don't book if you need guaranteed sun.

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 ← this page 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 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 March?

Rarely. Only 19% of days in Exuma see measurable rain in March, 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 March?

It's mixed. Exuma in March is clear on 45% of days historically (avg high 77°F, n=248 days, ERA5 2018–2025) — the outcome varies year to year.

How Exuma compares in March

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Exuma this month — same passport tier, similar flight distance, both sides from the same 8-year ERA5 record.

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.