ERA5 almanac comparison — 8 years of real data
Santorini vs Sicily: weather in June
Santorini edges out Sicily for sun in June: 89% clear historically versus 73% (8-year ERA5 average, a 16-point gap). Both are viable — Santorini is the safer bet.
What you are reading: 8-year historical averages, not a forecast.
Either destination can still surprise you this specific June. For this
week’s actual forecast, each destination links to its live page below.
Santorini
GR
- Clear days, June
- 89%
- Sample size
- n=240 days
- Avg high
- 82°F
- Early June (1st–15th)
- 89%
- Late June (16th–end)
- 89%
Sicily
IT
- Clear days, June
- 73%
- Sample size
- n=240 days
- Avg high
- 87°F
- Early June (1st–15th)
- 67%
- Late June (16th–end)
- 79%
Compare Santorini vs Sicily in another month
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.