ERA5 almanac — 8 years of real data

Dubai in October

Dubai in October: 2% of days see measurable rain, 95°F average high, 96% of days historically clear (n=248, ERA5 2018–2025).

Historically one of the better months to visit Dubai for sun: 96% of days are clear on average (n=248, avg high 95°F). Every percentage here is a historical average from 8 years of ERA5 data — 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 Dubai 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 October

Clear-sky percentage for Dubai in October, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period	% Clear days	Sample (n)	Avg high
Early October 1st–15th	98%	n=120	95°F
Late October 16th–end	95%	n=128	95°F
Full month average	96%	n=248	95°F

Sunshine & warmth in October

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 Dubai in October. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period	Warm & sunny (≥72°F, >6 h sun)	Sample (n)
Early October 1st–15th	100%	n=120
Late October 16th–end	100%	n=128
Full month average	100%	n=248

10.6 h median sunshine per day 99% of days exceed 8 h sunshine 2% of days see ≥ 1 mm rain — rain is not hidden

Comparison (old vs new): WMO-code “clear” bar: 96%. Sunshine-based “warm & sunny”: 100%.

Bottom line

Dubai is historically one of the best destinations for sun in October: 96% of days meet the clear bar (avg high 95°F, n=248 days across 8 years). Pack for outdoor activity — this month consistently delivers.

Every month in Dubai

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

Historical clear-sky % for Dubai, all months, ERA5 2018–2025.
Month	% Clear	Sample (n)
January	71%	n=248	All destinations →
February	73%	n=226	All destinations →
March	87%	n=248	All destinations →
April	94%	n=240	All destinations →
May	98%	n=248	All destinations →
June	100%	n=240	All destinations →
July	97%	n=248	All destinations →
August	100%	n=248	All destinations →
September	100%	n=240	All destinations →
October ← this page	96%	n=248	All destinations →
November	91%	n=240	All destinations →
December	85%	n=248	All destinations →

Frequently asked

Does it rain in Dubai in October?

Rarely. Only 2% of days in Dubai see measurable rain in October, based on 8 years of ERA5 historical data (n=248 days, 2018–2025). This is a historical average, not a forecast.

Is Dubai good for sun in October?

Yes. Dubai is historically strong for sun in October: 96% of days are clear on average (avg high 95°F, n=248 days, ERA5 2018–2025).

How Dubai compares in October

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Dubai this month — same passport tier, similar flight distance, both sides from the same 8-year ERA5 record.

→ Dubai vs Santorini in October — Santorini is 59% clear historically
→ Dubai vs Athens in October — Athens is 56% clear historically
→ Dubai vs Mykonos in October — Mykonos is 39% clear historically

→ Dubai live forecast — this week’s actual 7-day weather, not historical
→ Best destinations in October — all destinations ranked by October clear-sky %
→ All destinations
→ Raw data (JSON) — buckets, n, source

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.