ERA5 almanac comparison — 8 years of real data
Costa Rica — Manuel Antonio vs San Antonio: weather in April
San Antonio edges out Costa Rica — Manuel Antonio for sun in April: 36% clear historically versus 8% (8-year ERA5 average, a 28-point gap). Costa Rica — Manuel Antonio also sees measurably more rain than San Antonio this month (63% vs 40% of days). Both are viable — San Antonio is the safer bet.
Costa Rica — Manuel Antonio
Costa Rica
- Clear days, April
- 8%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early April (1st–15th)
- 14%
- Late April (16th–end)
- 3%
- Rain frequency
- 63% of days
San Antonio
TX
- Clear days, April
- 36%
- Sample size
- n=240 days
- Avg high
- 82°F
- Early April (1st–15th)
- 40%
- Late April (16th–end)
- 33%
- Rain frequency
- 40% of days
Frequently asked
Is Costa Rica — Manuel Antonio or San Antonio warmer in April?
Costa Rica — Manuel Antonio runs warmer by day in April. Costa Rica — Manuel Antonio averages highs of 86°F (highs n=240 days); San Antonio averages highs of 82°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Costa Rica — Manuel Antonio or San Antonio in April?
Costa Rica — Manuel Antonio is measurably wetter than San Antonio. Days with measurable rain: Costa Rica — Manuel Antonio 63%, San Antonio 40% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in April, Costa Rica — Manuel Antonio or San Antonio?
San Antonio edges out Costa Rica — Manuel Antonio for sun in April: 36% clear historically versus 8% (8-year ERA5 average, a 28-point gap). Costa Rica — Manuel Antonio also sees measurably more rain than San Antonio this month (63% vs 40% of days). Both are viable — San Antonio is the safer bet.
Compare Costa Rica — Manuel Antonio vs San Antonio 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 forecast for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.