Oia in Fall
In fall (September, October and November), Oia sees average daytime highs around 21°C and overnight lows near 20°C, with 66 mm of rain over about 11 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 25°C in early September to 17°C by late November. The sky is clear or mostly clear about 68% of the time across fall, and the air most often feels humid.
Fall is Oia's 2nd-best season to visit on our travel score. For the whole year in context, see Oia's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 20°C
- Rainfall
- 66 mm
- 11 wet days
- Avg wind
- 24 km/h
- Travel score
- 8.0
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Oia in Fall
Over the season highs ease from about 25°C in early September to 17°C by late November.
A typical fall day in Oia reaches about 21°C and drops to 20°C overnight. The warmest of the three months is September, the coolest November.
Oia weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 13° | 69 | 11.3 | 9.8 | 4.2 |
| Feb | 14° / 13° | 58 | 9.3 | 10.6 | 4.3 |
| Mar | 15° / 13° | 39 | 6.4 | 11.7 | 5.2 |
| Apr | 17° / 15° | 15 | 3.1 | 12.9 | 6.6 |
| May | 20° / 18° | 8 | 1.6 | 13.9 | 8.1 |
| Jun | 23° / 22° | 1 | 0.3 | 14.4 | 9.5 |
| Jul | 25° / 24° | 0 | 0 | 14.2 | 9.7 |
| Aug | 25° / 24° | 0 | 0.1 | 13.4 | 9.6 |
| Sep | 24° / 23° | 5 | 1.1 | 12.2 | 9.4 |
| Oct | 21° / 20° | 25 | 3.9 | 11.1 | 8.0 |
| Nov | 18° / 17° | 36 | 6.2 | 10.1 | 6.7 |
| Dec | 16° / 14° | 58 | 9.6 | 9.6 | 5.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 68% of the time across fall.
Chance of precipitation in Fall
Oia gets around 66 mm of rain over 11 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 24 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 48 min in early September to 9 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.2 kWh/m².
Is fall a good time to visit Oia?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is one of the better times to visit Oia for general sightseeing.
What to pack for Oia in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Oia sees daytime highs around 21°C and nights near 20°C. Worth packing: light clothes, sun protection and a windbreaker. About 11 days see rain.
Sea temperature near Oia in Fall
The nearest coast averages about 22°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 24°C and coldest in February near 16°C.
It's comfortable for a long swim from May 28 to Nov 12 — about 5.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 16 | 16 | 17 | 19 | 22 | 24 | 24 | 24 | 22 | 20 | 18 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 16 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 24 | Warm |
| Sep | 24 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 20 | Cool |
| Dec | 18 | Cool |
UV index in Oia in Fall
Clear-sky midday UV across fall averages around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Oia peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 8 | 7 | 9 | 9 | 9 | 8 | 5 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 8 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Where is Oia?
Oia sits at 36.5°N, 25.4°E, 0 m above sea level, in Greece. The nearest listed city is Fira, 7.0 km away.
Topography around Oia
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oia.
Within 3 km, the terrain around Oia has significant variations in elevation — a maximum elevation change of 322 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 548 m; within 80 km, large variations in elevation — a maximum elevation change of 971 m.
The land around Oia is covered by water (72%) and grassland (21%) within 3 km, water (89%) within 16 km, and water (93%) within 80 km.
Greece travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 60% of US
- price level, 2025
- GDP per capita
- $26,948
- 2025
- Happiness
- 5.7 / 10
- World Happiness, 2025
- Safe drinking water
- 97%
- of population, 2024
- Homicide rate
- 0.8
- per 100k, 2023
- Road deaths
- 8.3
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- High
- EF EPI 592
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Oia (36.4626°, 25.3764°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.