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SunnyDays

ERA5 almanac — 8 years of real data

Aruba in November

Aruba in November: 63% of days see measurable rain, 86°F average high, 6% of days historically clear (n=240, ERA5 2018–2025).

Aruba in November is historically a poor month for sun: only 6% of days clear across 8 years (n=240, avg high 86°F). May is the clearest month for Aruba 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 Aruba 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 Aruba 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		 5% n=120 86°F
Late November
16th–end		 6% n=120 86°F
Full month average 6% n=240 86°F

Sunshine & warmth in November

A second measure using actual sunshine hours (ERA5 sunshine_duration), not the daily weather code. A Lowcountry day with 12 hours of sun and a 25-minute afternoon storm is counted below as a warm, sunny day — because it was. How we define this.

Sunshine-based metrics for Aruba in November. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early November
1st–15th		 96% n=120
Late November
16th–end		 100% n=120
Full month average 98% n=240
11.0 h median sunshine per day 95% of days exceed 8 h sunshine 63% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 6%. Sunshine-based “warm & sunny”: 98%. The 92-point gap is from brief afternoon convective storms that stamp the whole day as “rain” in the WMO code but leave the bulk of the sunshine untouched.

Bottom line

Aruba is a poor choice for sun in November: just 6% of days clear historically (n=240). May 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 May — historically the best month for sun in Aruba.

Every month in Aruba

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

Historical clear-sky % for Aruba, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 24% n=248 All destinations →
February 22% n=226 All destinations →
March 33% n=248 All destinations →
April 33% n=240 All destinations →
May 39% n=248 All destinations →
June 30% n=240 All destinations →
July 22% n=248 All destinations →
August 24% n=248 All destinations →
September 32% n=240 All destinations →
October 14% n=248 All destinations →
November ← this page 6% n=240 All destinations →
December 12% n=248 All destinations →

Frequently asked

Does it rain in Aruba in November?

Yes, frequently. In Aruba, 63% of days in November see measurable rain, based on 8 years of ERA5 historical data (n=240 days, 2018–2025). This is a historical average, not a forecast.

Is Aruba good for sun in November?

Not usually. Aruba is historically overcast in November: only 6% of days are clear (avg high 86°F, n=240 days, ERA5 2018–2025). May 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.