Measured, not vibes
Best Time to Visit Santorini
By measured weather comfort, the top months for Santorini are October, May, September — and RouteVerdict's editorial pick, which also weighs crowds and prices, is May, June, September, October. The table below is computed from ERA5 reanalysis data for 2020–2024, measured at Fira (Santorini) (244 m elevation).
Month by month
Santorini weather and comfort, 2020–2024
| Month | Avg high | Wet days | Comfort | Season |
|---|---|---|---|---|
| January | 13.7°C / 57°F | 7.3 | 50 | |
| February | 14.1°C / 57°F | 4.8 | 55 | |
| March | 14.7°C / 58°F | 6.2 | 57 | |
| April | 18.2°C / 65°F | 3.3 | 81 | |
| May | 21.7°C / 71°F | 2.8 | 93 | Best |
| June | 26.1°C / 79°F | 1 | 92 | |
| July | 28.6°C / 83°F | 0.3 | 82 | Shoulder |
| August | 28.5°C / 83°F | 0.8 | 82 | |
| September | 26.1°C / 79°F | 0.5 | 93 | Best |
| October | 22.2°C / 72°F | 1.7 | 96 | Best |
| November | 18.6°C / 65°F | 2.7 | 84 | Shoulder |
| December | 15.8°C / 60°F | 7.7 | 61 |
Comfort is RouteVerdict's 0–100 score: 100·exp(−(high−23)²/162) × (1 − min(0.35, wet days × 0.02)). The full method is on the methodology page. Weather data by Open-Meteo.com (ERA5, CC BY 4.0), 2020–2024 normals. Wet day = ≥1 mm precipitation.
What the seasons are actually like
Traveling to Santorini month by month
Santorini's comfort score peaks in October at 96.2, with an average high of 22.2°C and just 1.7 wet days, ahead of May's 93.4 and September's 93.3. Summer (July-August) is nearly rain-free, at 0.3 and 0.8 wet days, yet comfort dips slightly to 81.9 and 81.6 as the heat itself becomes the limiting factor. Winter (December–February) sees highs of 13.7–15.8°C and comfort scores of 50.1–61.4, mild but well below the shoulder-season peaks.
FAQ
Santorini timing questions
What is the best month to visit Santorini?
By measured weather comfort (ERA5 2020–2024), the top months are October, May, and September, with October scoring highest. RouteVerdict's editorial pick is May, June, September, and October, which also weighs crowds, prices, and events.
What is the hottest month in Santorini?
July, with an average daily high of 28.6°C (83°F).
What is the rainiest month in Santorini?
December, averaging 7.7 days with at least 1 mm of precipitation.
When is shoulder season in Santorini?
November and July — the best-scoring months outside both the measured top three and RouteVerdict's editorial peak-season pick.
Why does Santorini's comfort dip slightly in July and August despite low rainfall?
Both months see under 1 wet day, but comfort still eases to 81.9 and 81.6 — a step below the shoulder-season peaks of October (96.2) and May (93.4) — as the heat itself becomes the limiting factor.
What is Santorini's single best month for weather?
October, with an average high of 22.2°C, just 1.7 wet days, and a comfort score of 96.2 — the highest measured for any month.