Ko Chang weather in October

In October, Ko Chang sees average daytime highs of 28°C and overnight lows near 26°C, with 278 mm of rain across 23.1 wet days and about 11.7 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 11% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 36 min by month's end. Set against the rest of the year, October is Ko Chang's 7th-clearest and 12th-windiest month. For the whole year in context, see Ko Chang's year-round climate.

Daytime high
28°
6th warmest
Overnight low
26°
6th coldest
Rainfall
278 mm
23.1 wet days
Daylight
11 h 42 min
6:04 AM – 5:48 PM
Cloud cover
78%
7th clearest
Wind
10 km/h
12th windiest
Solar energy
4.7 kWh/m²
Travel score
4.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical October day in Ko Chang reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, October runs on par with September and on par with November.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232926
242926
252926
262926
272926
282926
292926
302926
312926

How October really feels in Ko Chang

Once humidity and wind are folded in, October averages 15 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
15
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ko Chang weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°286.311.47.0
Feb28° / 26°266.511.67.1
Mar28° / 27°7113.211.95.6
Apr29° / 27°11517.112.34.5
May29° / 27°44827.912.53.1
Jun29° / 27°59528.612.73.0
Jul28° / 26°61229.912.63.0
Aug28° / 26°54729.412.43.1
Sep28° / 26°53728.612.13.3
Oct28° / 26°27823.111.74.0
Nov29° / 26°518.211.45.7
Dec29° / 25°183.811.36.6

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 77%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
2991
3991
41090
51189
61189
71288
81387
91486
101486
111783
121882
131981
142080
152179
162377
172476
182575
192773
202773
213070
223070
233268
243367
253466
263565
273664
283763
293763
303862
313961

Chance of precipitation in October

Any precipitation

Ko Chang gets around 278 mm of rain over 23.1 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 74% and peaks near 93% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
293
392
492
591
690
790
889
987
1086
1185
1283
1382
1480
1578
1676
1775
1873
1971
2069
2167
2265
2362
2460
2558
2655
2753
2851
2949
3047
3145

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 65% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
105545
205644
305842
405941
515940
616138
716237
816336
916435
1016534
1116633
1216633
1316732
1426632
1526632
1626731
1726731
1836730
1936730
2036829
2146729
2246828
2356827
2466826
2576825
2686923
2796922
28106921
29116920
30126919
31136918

Wind in October

Winds average 10 km/h in October, the calmest month.

Across October, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2712calm
2812calm
2912calm
3012calm
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over October. Sunrise moves from 6:03 AM to 6:07 AM, and sunset from 5:57 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:035:57
211.96:035:56
311.96:035:55
411.96:035:55
511.86:035:54
611.86:035:53
711.86:035:53
811.86:035:52
911.86:035:52
1011.86:035:51
1111.86:035:50
1211.86:045:50
1311.86:045:49
1411.76:045:49
1511.76:045:48
1611.76:045:48
1711.76:045:47
1811.76:045:47
1911.76:045:46
2011.76:055:46
2111.76:055:45
2211.76:055:45
2311.76:055:44
2411.66:055:44
2511.66:065:44
2611.66:065:43
2711.66:065:43
2811.66:065:42
2911.66:075:42
3011.66:075:42
3111.66:075:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.7 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 5.99 kWh/m² in April across the year — October's 4.7 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in October

Hazard calendar for Ko Chang

In seasonPeak

In October, Ko Chang sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.

Ko Chang sits in the Pacific typhoon belt; the season peaks July–October.

Ko Chang's monsoon runs May–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Ko Chang?

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

4.0
Sightseeing
7th-best month of the year
4.8
Beach & pool
7th-best month of the year

October is a reasonable time to visit Ko Chang for sightseeing.

What to pack for Ko Chang in October

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

In October, Ko Chang sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Ko Chang in October

The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in May at about 31°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Ko Chang in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ko Chang peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 17UV 14Dec 12UV 9
UV index (midday)Level
Jan10Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Ko Chang in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Ko Chang is worst in February — around 25 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodFeb 1424 µg/m³Nov 1410 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb25Moderate
Mar20Moderate
Apr16Moderate
May12Moderate
Jun12Moderate
Jul14Moderate
Aug12Good
Sep11Good
Oct11Good
Nov10Good
Dec11Good
Location & terrain

Where is Ko Chang?

Ko Chang sits at 12.0°N, 102.3°E, 0 m above sea level, in Thailand. The nearest listed city is Laem Ngop, 17 km away.

Topography around Ko Chang

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

Within 3 km, the terrain around Ko Chang has large variations in elevation — a maximum elevation change of 647 m around an average of 114 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 735 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,628 m.

The land around Ko Chang is covered by trees (67%) and water (29%) within 3 km, water (74%) and trees (25%) within 16 km, and water (55%) and trees (38%) within 80 km.

3 km
647 m
16 km
735 m
80 km
1,628 m
treesgrasslandcroplandartificial surfaceswatermangroves
October weather nearby: Laem Ngop 17 km · Trat 32 km · Khao Saming 37 km · Laem Sing 54 km · Chanthaburi 66 km · Khlong Yai 71 km · Tha Mai 72 km · Koh Kong 88 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

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 Ko Chang (12.0451°, 102.3003°, 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).