October · Greece
Best time to visit Santorini in October Weather, crowds & prices
Weather in Santorini in October
Average temperature 21°C, 10 mm of rain, about 30 days with 6+ hours of sunshine and 66% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
October score
9.0/10
Ranked #5 of 12 months
- Avg temp
- 21°C
- Rainfall
- 10 mm
- Humidity
- 66%
- Days with 6h+ sun
- 30
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
October in Santorini scores 9.0/10 for beach and coastal travel - an above-average month (#5 of 12). Expect around 21°C, 10 mm of rain, and roughly 30 days with 6+ hours of sunshine this month.
Santorini is far more than an Oia sunset: volcanic footpaths, black-sand coves, and village tavernas feel most balanced in June, September, and early October.
October in Santorini — one of the year's strongest windows (5th)
October averages 21°C (70°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 10 mm for the month, with about 30 days with 6+ hours of sunshine and 11.2 hours of daylight to work with.
A 9/10 puts this among the year's best months in Santorini (5th of 12); only June scores higher, at 10/10.
Pack light clothing, swimwear and real sun protection.
Figure on mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Santorini in October?
- In October, Santorini averages 21°C, 10 mm of rain, and about 30 days with 6+ hours of sunshine. Its climate-comfort score is 9.0/10.
- Is October a good time to visit Santorini?
- October earns a 9.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Santorini in October?
- Expect about 10 mm of rain in October. Average humidity is 66% and there are about 30 days with 6+ hours of sunshine.
Curated in Santorini
Tickets & experiences
Things to do in Santorini
Santorini, Greece. Live activities and tours from GetYourGuide, matched to this destination.