Cô Tô weather in October

In October, Cô Tô sees average daytime highs of 31°C and overnight lows near 25°C, with 315 mm of rain across 27.6 wet days and about 11.8 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 4% of the time in October, and the air most often feels miserable.

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 Cô Tô's 8th-clearest and 12th-windiest month. For the whole year in context, see Cô Tô's year-round climate.

Daytime high
31°
6th warmest
Overnight low
25°
5th coldest
Rainfall
315 mm
27.6 wet days
Daylight
11 h 48 min
5:52 AM – 5:38 PM
Cloud cover
85%
8th clearest
Wind
7 km/h
12th windiest
Solar energy
4.37 kWh/m²
Travel score
2.6
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical October day in Cô Tô reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, October runs on par with September and on par with November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125
313125

How October really feels in Cô Tô

Once humidity and wind are folded in, October averages 31 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
31
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.

Cô Tô weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°264.911.55.1
Feb32° / 23°152.611.74.7
Mar33° / 25°477.211.93.5
Apr34° / 26°971512.22.6
May33° / 27°18725.212.52.3
Jun31° / 26°23126.612.62.6
Jul30° / 26°23727.812.52.7
Aug30° / 26°22528.812.32.6
Sep30° / 26°26727.512.12.6
Oct31° / 25°31527.611.82.6
Nov31° / 24°13916.911.53.5
Dec31° / 24°62911.44.7

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 8% of October, with mostly cloudy or overcast conditions the remaining 88%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1793
2793
3892
4892
5892
6991
7991
8991
91090
101090
111090
121090
131090
141090
151090
161189
171189
181189
191189
201288
211387
221387
231387
241585
251585
261585
271684
281882
291981
302080
312080

Chance of precipitation in October

Any precipitation

Cô Tô gets around 315 mm of rain over 27.6 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 88% and peaks near 95% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
394
494
595
695
795
895
995
1094
1194
1294
1394
1493
1593
1692
1791
1890
1989
2088
2187
2286
2384
2482
2581
2679
2777
2876
2974
3073
3172

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the miserable band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
10793
20892
30892
40991
501090
601090
701189
801189
901288
1001288
1101387
1201387
1301486
1401585
1501585
1601684
1701783
1801882
1902080
2012178
2112277
2212475
2312673
2422870
2522969
2633166
2733364
2843462
2943660
3053758
3153857

Wind in October

Winds average 7 km/h in October, the calmest month.

Across October, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
58calm
68calm
78calm
88calm
98calm
108calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 5:52 AM to 5:54 AM, and sunset from 5:46 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:525:46
211.95:525:46
311.95:525:45
411.95:525:44
511.95:525:44
611.95:525:43
711.95:525:43
811.85:525:42
911.85:525:42
1011.85:525:41
1111.85:525:40
1211.85:525:40
1311.85:525:39
1411.85:525:39
1511.85:525:38
1611.85:525:38
1711.85:525:37
1811.75:525:37
1911.75:525:37
2011.75:525:36
2111.75:535:36
2211.75:535:35
2311.75:535:35
2411.75:535:35
2511.75:535:34
2611.75:535:34
2711.75:545:34
2811.75:545:33
2911.75:545:33
3011.65:545:33
3111.65:545:33

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 6.1 kWh/m² in April across the year — October's 4.37 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in October

Hazard calendar for Cô Tô

In seasonPeak

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

Cô Tô sits in the Pacific typhoon belt; the season peaks July–October.

Cô Tô's rainy season runs May–October, when most of the year's rain falls.

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

Is October a good time to visit Cô Tô?

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

2.6
Sightseeing
7th-best month of the year
3.9
Beach & pool
8th-best month of the year

October is a weaker month for outdoor sightseeing in Cô Tô.

What to pack for Cô Tô in October

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

In October, Cô Tô sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Cô Tô 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 29 km away) is warmest in May at about 31°C and coldest in January near 27°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
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Cô Tô in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cô Tô peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 19UV 13Dec 11UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Cô Tô 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 Cô Tô is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1754 µg/m³Aug 1422 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb49Poor
Mar44Poor
Apr40Poor
May33Moderate
Jun25Moderate
Jul24Moderate
Aug21Moderate
Sep27Moderate
Oct39Poor
Nov47Poor
Dec48Poor
Location & terrain

Where is Cô Tô?

Cô Tô sits at 10.3°N, 105.0°E, 1 m above sea level, in Vietnam. The nearest listed city is Óc Eo, 19 km away.

Topography around Cô Tô

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

Within 3 km, the terrain around Cô Tô has significant variations in elevation — a maximum elevation change of 413 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 633 m; within 80 km, large variations in elevation — a maximum elevation change of 691 m.

The land around Cô Tô is covered by cropland (76%) within 3 km, cropland (79%) within 16 km, and cropland (61%) and water (23%) within 80 km.

3 km
413 m
16 km
633 m
80 km
691 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Óc Eo 19 km · Tịnh Biên 29 km · Núi Sập 29 km · Rạch Giá 38 km · Châu Đốc 40 km · Châu Phong 43 km · Vĩnh Thạnh 44 km · Kiến An 45 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 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 Cô Tô (10.35°, 105.0167°, elevation 1 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).