ERA5 almanac comparison — 8 years of real data
Jamaica vs San Antonio: weather in June
San Antonio edges out Jamaica for sun in June: 31% clear historically versus 14% (8-year ERA5 average, a 17-point gap). Jamaica also sees measurably more rain than San Antonio this month (67% vs 36% of days). Both are viable — San Antonio is the safer bet.
Jamaica
Jamaica
- Clear days, June
- 14%
- Sample size
- n=240 days
- Avg high
- 86°F
- Early June (1st–15th)
- 11%
- Late June (16th–end)
- 18%
- Rain frequency
- 67% of days
San Antonio
TX
- Clear days, June
- 31%
- Sample size
- n=240 days
- Avg high
- 94°F
- Early June (1st–15th)
- 32%
- Late June (16th–end)
- 30%
- Rain frequency
- 36% of days
Frequently asked
Is Jamaica or San Antonio warmer in June?
San Antonio runs warmer by day in June. Jamaica averages highs of 86°F (highs n=240 days); San Antonio averages highs of 94°F (highs n=240 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Jamaica or San Antonio in June?
Jamaica is measurably wetter than San Antonio. Days with measurable rain: Jamaica 67%, San Antonio 36% (n=240 and n=240 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in June, Jamaica or San Antonio?
San Antonio edges out Jamaica for sun in June: 31% clear historically versus 14% (8-year ERA5 average, a 17-point gap). Jamaica also sees measurably more rain than San Antonio this month (67% vs 36% of days). Both are viable — San Antonio is the safer bet.
Compare Jamaica 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.