Chios in Fall
In fall (September, October and November), Chios sees average daytime highs around 21°C and overnight lows near 18°C, with 147 mm of rain over about 15 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early September to 16°C by late November. The sky is clear or mostly clear about 68% of the time across fall, and the air most often feels dry.
Fall is Chios's 2nd-best season to visit on our travel score. For the whole year in context, see Chios's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 147 mm
- 15 wet days
- Avg wind
- 20 km/h
- Travel score
- 7.7
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Chios in Fall
Over the season highs ease from about 27°C in early September to 16°C by late November.
A typical fall day in Chios reaches about 21°C and drops to 18°C overnight. The warmest of the three months is September, the coolest November.
Chios 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 | 13° / 10° | 117 | 11.5 | 9.6 | 3.5 |
| Feb | 13° / 10° | 96 | 10.3 | 10.5 | 3.7 |
| Mar | 15° / 11° | 68 | 7.9 | 11.7 | 4.8 |
| Apr | 18° / 14° | 37 | 5.6 | 13 | 6.6 |
| May | 22° / 17° | 16 | 2.9 | 14.1 | 8.3 |
| Jun | 26° / 21° | 4 | 0.9 | 14.6 | 9.1 |
| Jul | 28° / 23° | 0 | 0.1 | 14.4 | 8.7 |
| Aug | 28° / 24° | 0 | 0.1 | 13.5 | 8.5 |
| Sep | 25° / 21° | 16 | 1.8 | 12.3 | 9.1 |
| Oct | 21° / 18° | 47 | 4.7 | 11 | 7.9 |
| Nov | 17° / 14° | 85 | 8.4 | 9.9 | 6.1 |
| Dec | 14° / 11° | 130 | 11.9 | 9.4 | 4.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 68% of the time across fall.
Chance of precipitation in Fall
Chios gets around 147 mm of rain over 15 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 20 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 54 min in early September to 9 h 30 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 4.1 kWh/m².
Hazard calendar for Chios
In fall, Chios overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Chios's rainy season runs November–March, when most of the year's rain falls.
Is fall a good time to visit Chios?
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 Chios for general sightseeing.
What to pack for Chios in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Chios sees daytime highs around 21°C and nights near 18°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 15 days see rain.
Sea temperature near Chios in Fall
The nearest coast averages about 21°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 23°C and coldest in March near 16°C.
It's comfortable for a long swim from Jun 1 to Oct 30 — about 5 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 | 16 | 19 | 22 | 23 | 23 | 23 | 21 | 19 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 16 | Cool |
| Mar | 16 | Cool |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 17 | Cool |
UV index in Chios 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 Chios peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 8 | 7 | 9 | 9 | 9 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 8 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Chios in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Chios is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 8 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 12 | 15 | 14 | 13 | 12 | 12 | 12 | 10 | 10 | 11 | 8 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 12 | Moderate |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 13 | Moderate |
| Jun | 12 | Good |
| Jul | 12 | Moderate |
| Aug | 12 | Moderate |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 8 | Good |
Where is Chios?
Chios sits at 38.4°N, 26.1°E, 9 m above sea level, in Greece. The nearest listed city is Çeşme, 15 km away.
Topography around Chios
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chios.
Within 3 km, the terrain around Chios has significant variations in elevation — a maximum elevation change of 359 m around an average of 41 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 919 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,255 m.
The land around Chios is covered by water (44%) and grassland (20%) within 3 km, water (50%) within 16 km, and water (80%) 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 Chios (38.3687°, 26.1372°, elevation 9 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.