Greece Santorini Weather in October — Climate Guide
October in Santorini is very-high
Santorini Weather in October — Quick Answer
As of 2026- Avg temp
- 22° / 16°
- Rainfall
- 50mm · 5 days
- Crowds
- Busy
As of 2026, Santorini in October averages a high of 22°C and low of 16°C with 50mm of rain over about 5 days. Light layers + jacket.
October is very-high for Santorini.
Best shoulder-pricing month. Wine harvest + still-warm + swim-able sea + lower crowds.
Travel score
Santorini October Weather Stats
Avg High
22°C
Avg Low
16°C
Rainy Days
5
50mm total
Sunshine
7h
Daily avg
Humidity
65%
moderate
UV Index
4
Moderate
Wind
13 km/h
Gusts 35
Sea Temp
22°C
swimming possible
Crowds
Busy
At attractions
October Sunrise & Sunset
Air Quality
PM2.5
14 μg/m³
PM10
25 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
22°C
Nighttime
15°C
Humidity and wind affect how the actual temperature feels.
Wind
13 km/h
Max gust 35 km/h
Activities Recommended for October
October Travel Pros & Cons
Pros
- Sea-temp 22°C still swimmable
- Wine harvest
- Crowds dropping
- Hotels 30% off August
Cons
- Some hotels closing late-month
- Rain 5 days
- Daylight dropping
October Events & Festivals
- Wine harvest peak
- Hotels closing late-month
Santorini in October — Full Picture
Best shoulder-pricing month. Wine harvest + still-warm + swim-able sea + lower crowds.
What to Wear & What to Pack
Light layers + jacket.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
18.7°C
12.7°C
5.7/mo
Summer (Jun·Jul·Aug)
28.3°C
21.3°C
0.3/mo
Autumn (Sep·Oct·Nov)
Current21.7°C
16°C
5/mo
Winter (Dec·Jan·Feb)
14.3°C
9.7°C
10.7/mo
Santorini Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 14° | 9° | 11d·75mm | 4h | 73% | 1 | Quiet | Low season | |
| 14° | 9° | 10d·65mm | 5h | 71% | 2 | Quiet | Low season | |
| 15° | 10° | 8d·55mm | 6h | 70% | 3 | Quiet | Shoulder | |
| April (Best) | 18° | 12° | 6d·30mm | 8h | 65% | 5 | Busy | Peak |
| May (Best) | 23° | 16° | 3d·15mm | 10h | 60% | 7 | Very busy | Peak |
| June (Best) | 27° | 20° | 1d·5mm | 12h | 55% | 9 | Very busy | Peak |
| 29° | 22° | 0d·0mm | 13h | 50% | 10 | Very busy | Peak | |
| 29° | 22° | 0d·0mm | 12h | 52% | 9 | Very busy | Peak | |
| September (Best) | 25° | 19° | 2d·15mm | 10h | 60% | 7 | Very busy | Peak |
| October (Best) | 22° | 16° | 5d·50mm | 7h | 65% | 4 | Busy | Shoulder |
| 18° | 13° | 8d·65mm | 5h | 70% | 3 | Quiet | Shoulder | |
| 15° | 11° | 11d·75mm | 4h | 73% | 2 | Quiet | Low season |
View Other Months
Santorini October Hotel Picks
Frequently Asked Questions
Is October a good time to visit Santorini?
Santorini in October is very-high. Tourist crowds are busy and flight/hotel prices are shoulder.
What's the average temperature in Santorini in October?
Santorini October averages a high of 22°C and a low of 16°C.
Does it rain much in Santorini in October?
Santorini October averages 50mm of rainfall over about 5 rainy days.
What should I wear in Santorini in October?
Light layers + jacket.
What time are sunrise and sunset in Santorini in October?
Santorini October sunrise is 07:20 and sunset is 18:30, with 11h 10min of daylight.
What's the air quality like in Santorini in October?
Santorini October air quality (AQI) averages 42, rated Good. PM2.5 averages 14μg/m³.
What activities are recommended in Santorini in October?
In October, Santorini is great for Wineries (harvest), Oia sunset (less crowded), Caldera cruise (1st 2 weeks).
Is October peak season in Santorini?
Santorini October crowds are busy and prices are shoulder. Advance reservations are strongly recommended.
Best Months to Visit Santorini
View Other Months
Planning a October trip to Santorini?
You've checked the weather — next come the budget and the route.
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.