Skip to main content
SunnyDays

ERA5 almanac — 8 years of real data

Nice / Côte d'Azur in July

Nice / Côte d'Azur in July: 7% of days see measurable rain, 83°F average high, 78% of days historically clear (n=248, ERA5 2018–2025).

Historically one of the better months to visit Nice / Côte d'Azur for sun: 78% of days are clear on average (n=248, avg high 83°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 Nice / Côte d'Azur 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 Nice / Côte d'Azur 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		 78% n=120 83°F
Late July
16th–end		 78% n=128 83°F
Full month average 78% 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 Nice / Côte d'Azur 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		 100% n=120
Late July
16th–end		 99% n=128
Full month average 99% n=248
14.5 h median sunshine per day 98% of days exceed 8 h sunshine 7% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 78%. Sunshine-based “warm & sunny”: 99%. The 21-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

Nice / Côte d'Azur clears solidly in July: 78% of days historically (n=248), avg high 83°F. Most trips here in July will find more sun than cloud.

Every month in Nice / Côte d'Azur

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

Historical clear-sky % for Nice / Côte d'Azur, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 0% n=248 All destinations →
February 0% n=226 All destinations →
March 2% n=248 All destinations →
April 6% n=240 All destinations →
May 20% n=248 All destinations →
June 61% n=240 All destinations →
July ← this page 78% n=248 All destinations →
August 74% n=248 All destinations →
September 60% n=240 All destinations →
October 29% n=248 All destinations →
November 0% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Does it rain in Nice / Côte d'Azur in July?

Rarely. Only 7% of days in Nice / Côte d'Azur see measurable rain in July, based on 8 years of ERA5 historical data (n=248 days, 2018–2025). This is a historical average, not a forecast.

Is Nice / Côte d'Azur good for sun in July?

Yes. Nice / Côte d'Azur is historically strong for sun in July: 78% of days are clear on average (avg high 83°F, n=248 days, ERA5 2018–2025).

How Nice / Côte d'Azur compares in July

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

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.