Kos weather in October

In October, Kos sees average daytime highs of 22°C and overnight lows near 20°C, with 62 mm of rain across 4.9 wet days and about 11 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 71% of the time in October, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Kos's 6th-clearest and 11th-windiest month. For the whole year in context, see Kos's year-round climate.

Daytime high
22°
5th warmest
Overnight low
20°
8th coldest
Rainfall
62 mm
4.9 wet days
Daylight
11 hours
6:25 AM – 5:27 PM
Cloud cover
27%
6th clearest
Wind
21 km/h
11th windiest
Solar energy
4.16 kWh/m²
Travel score
8.0
out of 10

Kos is city on the homonymous island in Aegean Sea, Greece.

Density
286/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical October day in Kos reaches about 22°C in the afternoon and slips back to 20°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 23°C. Set against its neighbours, October runs about 3°C cooler than September and about 3°C warmer than November.

15°18°20°23°25°151015202531
Avg high (°C)Avg low (°C)
12321
22321
32321
42321
52321
62321
72221
82221
92221
102221
112221
122220
132220
142220
152220
162220
172220
182220
192120
202120
212119
222119
232119
242119
252119
262119
272119
282019
292018
302018
312018

Kos weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°17312.39.84.1
Feb14° / 12°12611.510.64.0
Mar15° / 13°788.311.75.0
Apr17° / 15°395.812.96.3
May20° / 18°163.113.98.0
Jun24° / 22°20.414.59.5
Jul26° / 24°00.114.39.6
Aug26° / 24°0013.49.4
Sep24° / 23°161.812.39.3
Oct22° / 20°624.9118.0
Nov19° / 17°1208.9106.5
Dec16° / 14°19012.89.54.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1919
2919
38911
48911
58911
68911
78713
88713
98713
108515
118515
128515
138317
148317
158218
168218
178218
188020
198020
207921
217921
227921
237822
247723
257723
267624
277624
287624
297624
307525
317525

Chance of precipitation in October

Any precipitation

Kos gets around 62 mm of rain over 4.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 16% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
412
512
612
712
813
913
1013
1113
1214
1314
1414
1515
1615
1716
1816
1917
2017
2118
2218
2318
2419
2519
2620
2720
2820
2921
3021
3121

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the humid band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171733386
271733376
371734365
471735365
581836354
681837344
781837343
891838333
991838322
1091838322
11101939312
12111938302
13111938301
14122038291
15132138281
16142137271
17142237261
18162336251
19172436231
20192435220
21202534200
22222632190
23242631180
24262730160
25282729150
26302829130
27322828120
28332828110
29342927100
3035292780
3136302770

Wind in October

Winds average 21 km/h in October.

Across October, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
720breezy
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:11 AM to 6:40 AM, and sunset from 5:49 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:115:49
211.66:125:47
311.56:135:46
411.56:145:44
511.56:155:43
611.46:155:41
711.46:165:40
811.36:175:38
911.36:185:37
1011.36:195:35
1111.26:205:34
1211.26:215:32
1311.26:225:31
1411.16:235:30
1511.16:245:28
1611.06:255:27
1711.06:265:26
1811.06:275:24
1910.96:285:23
2010.96:295:22
2110.86:305:21
2210.86:315:19
2310.86:325:18
2410.76:335:17
2510.76:345:16
2610.76:355:15
2710.66:365:13
2810.66:375:12
2910.66:385:11
3010.56:395:10
3110.56:405:09

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.16 kWh/m².

For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 7.91 kWh/m² in June across the year — October's 4.16 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.0Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in October

Hazard calendar for Kos

In seasonPeak

None of Kos's seasonal hazards are active in October. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Kos's rainy season runs November–February, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Kos?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

8.0
Sightseeing
5th-best month of the year
5.3
Beach & pool
5th-best month of the year

October is one of the better times to visit Kos for general sightseeing.

What to pack for Kos in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Kos sees daytime highs around 22°C and nights near 20°C. Worth packing: a windbreaker. About 5 days see rain.

a windbreaker

Sea temperature near Kos in October

The nearest coast averages about 23°C in October — 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 25°C and coldest in March near 17°C.

It's comfortable for a long swim from May 23 to Nov 28 — about 6.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb17Cool
Mar17Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Refreshing
Aug25Warm
Sep24Warm
Oct23Refreshing
Nov21Refreshing
Dec19Cool

UV index in Kos in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks 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 Kos peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highModerateJun 22UV 9Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr8Very high
May8Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Moderate
Location & terrain

Where is Kos?

Kos sits at 36.9°N, 27.3°E, 10 m above sea level, in Greece. The nearest listed city is Turgutreis, 14 km away.

DidimMilasMarmarisYatağanSökeRhodes

Topography around Kos

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kos.

Within 3 km, the terrain around Kos has only modest variations in elevation — a maximum elevation change of 196 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 830 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,389 m.

The land around Kos is covered by water (37%) and grassland (23%) within 3 km, water (74%) within 16 km, and water (74%) within 80 km.

3 km
196 m
16 km
830 m
80 km
1,389 m
treesshrubsgrasslandcroplandartificial surfaceswater
October weather nearby: Turgutreis 14 km · Bodrum 20 km · Didim 55 km · Milas 64 km · Marmaris 88 km · Yatağan 91 km · Söke 96 km · Rhodes 98 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
other 3%Muslim 2%

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 Kos (36.8929°, 27.2877°, elevation 10 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).