ERA5 almanac — 8 years of real data

Venice in July

Venice in July: 29% of days see measurable rain, 83°F average high, 52% of days historically clear (n=248, ERA5 2018–2025).

Venice in July is a mixed month for sun: 52% of days historically clear (n=248, avg high 83°F). The outcome varies year to year — check the early/late split below. 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 Venice 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 July

Clear-sky percentage for Venice in July, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period	% Clear days	Sample (n)	Avg high
Early July 1st–15th	48%	n=120	83°F
Late July 16th–end	55%	n=128	83°F
Full month average	52%	n=248	83°F

Sunshine & warmth in July

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 Venice in July. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period	Warm & sunny (≥72°F, >6 h sun)	Sample (n)
Early July 1st–15th	99%	n=120
Late July 16th–end	96%	n=128
Full month average	97%	n=248

14.1 h median sunshine per day 95% of days exceed 8 h sunshine 29% of days see ≥ 1 mm rain — rain is not hidden

Comparison (old vs new): WMO-code “clear” bar: 52%. Sunshine-based “warm & sunny”: 97%. The 45-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

Venice in July is genuinely mixed: 52% of days historically clear (n=248), avg high 83°F — roughly even odds. The outcome varies year to year; don't book if you need guaranteed sun.

Every month in Venice

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

Historical clear-sky % for Venice, all months, ERA5 2018–2025.
Month	% Clear	Sample (n)
January	0%	n=248	All destinations →
February	0%	n=226	All destinations →
March	0%	n=248	All destinations →
April	6%	n=240	All destinations →
May	16%	n=248	All destinations →
June	54%	n=240	All destinations →
July ← this page	52%	n=248	All destinations →
August	58%	n=248	All destinations →
September	44%	n=240	All destinations →
October	9%	n=248	All destinations →
November	0%	n=240	All destinations →
December	0%	n=248	All destinations →

Frequently asked

Does it rain in Venice in July?

Sometimes. Venice sees measurable rain on 29% of days in July historically (n=248 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Venice good for sun in July?

It's mixed. Venice in July is clear on 52% of days historically (avg high 83°F, n=248 days, ERA5 2018–2025) — the outcome varies year to year.

How Venice compares in July

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

→ Venice vs Paris in July — Paris is 45% clear historically
→ Venice vs Barcelona in July — Barcelona is 64% clear historically
→ Venice vs Florence in July — Florence is 65% clear historically

→ Venice live forecast — this week’s actual 7-day weather, not historical
→ Best destinations in July — all destinations ranked by July 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.