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SunnyDays

ERA5 almanac — 8 years of real data

Jamaica in November

Jamaica in November: rain frequency data not yet backfilled for this month, 84°F average high, 15% of days historically clear (n=240, ERA5 2018–2025).

Jamaica in November is historically a poor month for sun: only 15% of days clear across 8 years (n=240, avg high 84°F). January is the clearest month for Jamaica historically. 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 Jamaica 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 November

Clear-sky percentage for Jamaica in November, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early November
1st–15th		 11% n=120 84°F
Late November
16th–end		 19% n=120 84°F
Full month average 15% n=240 84°F

Bottom line

Jamaica is a poor choice for sun in November: just 15% of days clear historically (n=240). January is the historically strongest month for sun here. The 8-year record is consistent — this is not a fluke bad stretch.

→ See all destinations in January — historically the best month for sun in Jamaica.

Every month in Jamaica

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

Historical clear-sky % for Jamaica, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 23% n=248 All destinations →
February 19% n=226 All destinations →
March 21% n=248 All destinations →
April 8% n=240 All destinations →
May 3% n=248 All destinations →
June 14% n=240 All destinations →
July 18% n=248 All destinations →
August 11% n=248 All destinations →
September 4% n=240 All destinations →
October 4% n=248 All destinations →
November ← this page 15% n=240 All destinations →
December 21% n=248 All destinations →

Frequently asked

Is Jamaica good for sun in November?

Not usually. Jamaica is historically overcast in November: only 15% of days are clear (avg high 84°F, n=240 days, ERA5 2018–2025). January is historically far better for sun here.

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.