Greece Santorini Weather in October — Climate Guide
October in Santorini is very-high
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
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.