ERA5 almanac comparison — 8 years of real data
Jamaica vs Tampa: weather in January
Essentially a tie in January: Jamaica is 23% clear historically, Tampa is 23% clear (8-year ERA5 average) — within the noise. Avg high 81°F vs 68°F. Jamaica also sees measurably more rain than Tampa this month (42% vs 22% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Jamaica
Jamaica
- Clear days, January
- 23%
- Sample size
- n=248 days
- Avg high
- 81°F
- Early January (1st–15th)
- 23%
- Late January (16th–end)
- 23%
- Rain frequency
- 42% of days
Tampa
FL
- Clear days, January
- 23%
- Sample size
- n=248 days
- Avg high
- 68°F
- Early January (1st–15th)
- 25%
- Late January (16th–end)
- 22%
- Rain frequency
- 22% of days
Frequently asked
Is Jamaica or Tampa warmer in January?
Jamaica runs warmer by day in January. Jamaica averages highs of 81°F (highs n=248 days); Tampa averages highs of 68°F (highs n=248 days) (ERA5 2018–2025). Historical averages, not a forecast.
Does it rain more in Jamaica or Tampa in January?
Jamaica is measurably wetter than Tampa. Days with measurable rain: Jamaica 42%, Tampa 22% (n=248 and n=248 days). ERA5 2018–2025; historical, not a forecast.
Which is sunnier in January, Jamaica or Tampa?
Essentially a tie in January: Jamaica is 23% clear historically, Tampa is 23% clear (8-year ERA5 average) — within the noise. Avg high 81°F vs 68°F. Jamaica also sees measurably more rain than Tampa this month (42% vs 22% of days). Pick based on flight time or price, not weather — the weather won't decide this one for you.
Compare Jamaica vs Tampa 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.