ERA5 almanac — 8 years of real data

Kyoto in June

Kyoto in June: 46% of days see measurable rain, 80°F average high, 31% of days historically clear (n=240, ERA5 2018–2025).

Kyoto in June is historically a poor month for sun: only 31% of days clear across 8 years (n=240, avg high 80°F). 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 Kyoto 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 June

Clear-sky percentage for Kyoto in June, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period	% Clear days	Sample (n)	Avg high
Early June 1st–15th	38%	n=120	80°F
Late June 16th–end	24%	n=120	80°F
Full month average	31%	n=240	80°F

Sunshine & warmth in June

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 Kyoto in June. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period	Warm & sunny (≥72°F, >6 h sun)	Sample (n)
Early June 1st–15th	68%	n=120
Late June 16th–end	73%	n=120
Full month average	70%	n=240

9.4 h median sunshine per day 62% of days exceed 8 h sunshine 46% of days see ≥ 1 mm rain — rain is not hidden

Comparison (old vs new): WMO-code “clear” bar: 31%. Sunshine-based “warm & sunny”: 70%. The 39-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

Kyoto is mostly overcast in June historically: only 31% of days are clear across 8 years (n=240), avg high 80°F. Most visitors this month will see more clouds than sun.

Every month in Kyoto

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

Historical clear-sky % for Kyoto, all months, ERA5 2018–2025.
Month	% Clear	Sample (n)
January	0%	n=248	All destinations →
February	0%	n=226	All destinations →
March	1%	n=248	All destinations →
April	12%	n=240	All destinations →
May	32%	n=248	All destinations →
June ← this page	31%	n=240	All destinations →
July	21%	n=248	All destinations →
August	26%	n=248	All destinations →
September	25%	n=240	All destinations →
October	22%	n=248	All destinations →
November	2%	n=240	All destinations →
December	0%	n=248	All destinations →

Frequently asked

Does it rain in Kyoto in June?

Sometimes. Kyoto sees measurable rain on 46% of days in June historically (n=240 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Kyoto good for sun in June?

It's mixed. Kyoto in June is clear on 31% of days historically (avg high 80°F, n=240 days, ERA5 2018–2025) — the outcome varies year to year.

How Kyoto compares in June

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

→ Kyoto vs Tokyo in June — Tokyo is 27% clear historically

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