ERA5 almanac — 8 years of real data

Costa Rica — Manuel Antonio in February

Costa Rica — Manuel Antonio in February: rain frequency data not yet backfilled for this month, 86°F average high, 51% of days historically clear (n=226, ERA5 2018–2025).

Costa Rica — Manuel Antonio in February is a mixed month for sun: 51% of days historically clear (n=226, avg high 86°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 Costa Rica — Manuel Antonio 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 February

Clear-sky percentage for Costa Rica — Manuel Antonio in February, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period	% Clear days	Sample (n)	Avg high
Early February 1st–15th	52%	n=120	86°F
Late February 16th–end	49%	n=106	86°F
Full month average	51%	n=226	86°F

Bottom line

Costa Rica — Manuel Antonio in February is genuinely mixed: 51% of days historically clear (n=226), avg high 86°F — roughly even odds. The outcome varies year to year; don't book if you need guaranteed sun.

Every month in Costa Rica — Manuel Antonio

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

Historical clear-sky % for Costa Rica — Manuel Antonio, all months, ERA5 2018–2025.
Month	% Clear	Sample (n)
January	37%	n=248	All destinations →
February ← this page	51%	n=226	All destinations →
March	34%	n=248	All destinations →
April	8%	n=240	All destinations →
May	4%	n=248	All destinations →
June	2%	n=240	All destinations →
July	5%	n=248	All destinations →
August	3%	n=248	All destinations →
September	0%	n=240	All destinations →
October	0%	n=248	All destinations →
November	4%	n=240	All destinations →
December	22%	n=248	All destinations →

Frequently asked

Is Costa Rica — Manuel Antonio good for sun in February?

It's mixed. Costa Rica — Manuel Antonio in February is clear on 51% of days historically (avg high 86°F, n=226 days, ERA5 2018–2025) — the outcome varies year to year.

→ Costa Rica — Manuel Antonio live forecast — this week’s actual 7-day weather, not historical
→ Best destinations in February — all destinations ranked by February clear-sky %
→ All destinations
→ Raw data (JSON) — buckets, n, source

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.