Hoàn Lão weather in October

In October, Hoàn Lão sees average daytime highs of 27°C and overnight lows near 24°C, with 531 mm of rain across 24 wet days and about 11.6 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 21% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 24 min by month's end. Set against the rest of the year, October is Hoàn Lão's 3rd-clearest and 7th-windiest month. For the whole year in context, see Hoàn Lão's year-round climate.

Daytime high
27°
7th warmest
Overnight low
24°
7th coldest
Rainfall
531 mm
24 wet days
Daylight
11 h 36 min
5:51 AM – 5:27 PM
Cloud cover
69%
3rd clearest
Wind
12 km/h
7th windiest
Solar energy
3.71 kWh/m²
Travel score
4.5
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical October day in Hoàn Lão reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 29°C. Set against its neighbours, October runs about 3°C cooler than September and about 2°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82724
92724
102724
112724
122724
132724
142724
152724
162724
172723
182723
192723
202723
212723
222623
232623
242623
252623
262623
272623
282623
292623
302623
312623

How October really feels in Hoàn Lão

Once humidity and wind are folded in, October averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Hoàn Lão weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 18°12517.411.15.2
Feb22° / 18°7713.811.45.8
Mar25° / 21°8213.311.96.2
Apr28° / 23°8812.812.45.6
May30° / 26°11214.712.84.2
Jun32° / 27°638.1133.9
Jul32° / 27°941012.93.9
Aug31° / 26°14613.512.63.9
Sep29° / 25°34519.612.13.9
Oct27° / 24°5312411.64.5
Nov25° / 21°36620.911.24.9
Dec22° / 19°22820.3114.8

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33763
43862
53862
63763
73763
83763
93763
103763
113763
123763
133763
143763
153763
163763
173763
183763
193763
203664
213763
223763
233763
243664
253763
263763
273763
283763
293763
303763
313763

Chance of precipitation in October

Any precipitation

Hoàn Lão gets around 531 mm of rain over 24 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 76% and peaks near 78% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
175
275
375
476
576
676
776
876
976
1076
1177
1277
1377
1477
1577
1677
1777
1877
1978
2078
2178
2278
2378
2478
2577
2677
2776
2876
2975
3075
3174

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 95% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10176626
20186625
30186823
40196822
50196921
601106920
701116919
802126818
902126917
1002136916
1102146915
1202156914
1303156814
1403166813
1513176712
1613176712
1713186711
1814186710
1914196610
201419679
211420678
221521658
232521657
242622637
252623636
262724616
273825586
283826585
293927565
3031028545
3131029544

Wind in October

Winds average 12 km/h in October.

Across October, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
712calm
812calm
912calm
1012calm
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over October. Sunrise moves from 5:48 AM to 5:56 AM, and sunset from 5:38 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:485:38
211.85:485:37
311.85:485:36
411.85:485:36
511.85:485:35
611.85:495:34
711.75:495:33
811.75:495:33
911.75:495:32
1011.75:495:31
1111.75:505:30
1211.75:505:30
1311.65:505:29
1411.65:505:28
1511.65:515:27
1611.65:515:27
1711.65:515:26
1811.65:525:25
1911.55:525:25
2011.55:525:24
2111.55:535:24
2211.55:535:23
2311.55:535:22
2411.55:545:22
2511.55:545:21
2611.45:545:21
2711.45:555:20
2811.45:555:20
2911.45:565:19
3011.45:565:19
3111.45:565:18

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.71 kWh/m².

For context, solar energy here swings from a low near 2.38 kWh/m² to a high of 5.68 kWh/m² in May across the year — October's 3.71 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Moderate
34.0Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.8Moderate
133.7Moderate
143.7Moderate
153.7Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.6Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in October

Hazard calendar for Hoàn Lão

In seasonPeak

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

Hoàn Lão sits in the Pacific typhoon belt; the season peaks July–October.

Hoàn Lão's monsoon runs September–November, 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 Hoàn Lão?

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

4.5
Sightseeing
7th-best month of the year
4.5
Beach & pool
8th-best month of the year

October is a reasonable time to visit Hoàn Lão for sightseeing.

What to pack for Hoàn Lão in October

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

In October, Hoàn Lão sees daytime highs around 27°C and nights near 24°C. Pack rain gear. Worth having: light clothes. About 24 days see rain.

rain gearlight clothes

Sea temperature near Hoàn Lão in October

The nearest coast averages about 28°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 30°C and coldest in February near 22°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar23Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov26Warm
Dec24Refreshing

UV index in Hoàn Lão 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 Hoàn Lão peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highVery highExtremeVery highAug 12UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar10Very high
Apr9Very high
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Hoàn Lão 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 Hoàn Lão is worst in April — around 65 µg/m³ PM2.5 (unhealthy), about 4.9× the cleanest month (July, 13 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateApr 1064 µg/m³Jul 1514 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb26Moderate
Mar62Unhealthy
Apr65Unhealthy
May21Moderate
Jun14Moderate
Jul13Moderate
Aug14Moderate
Sep16Moderate
Oct20Moderate
Nov18Moderate
Dec21Moderate
Location & terrain

Where is Hoàn Lão?

Hoàn Lão sits at 17.6°N, 106.5°E, 10 m above sea level, in Vietnam. The nearest listed city is Đồng Hới, 16 km away.

Cam LộÐông HàHà Tĩnhthị xã Quảng Trị

Topography around Hoàn Lão

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

Within 3 km, the terrain around Hoàn Lão has only modest variations in elevation — a maximum elevation change of 21 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 967 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,612 m.

The land around Hoàn Lão is covered by cropland (41%) within 3 km, water (42%) and trees (35%) within 16 km, and trees (61%) and water (32%) within 80 km.

3 km
21 m
16 km
967 m
80 km
1,612 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Đồng Hới 16 km · Ba Đồn 22 km · Quán Hàu 23 km · Kỳ Anh 59 km · Cam Lộ 99 km · Ðông Hà 104 km · Hà Tĩnh 107 km · thị xã Quảng Trị 115 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 Hoàn Lão (17.5844°, 106.5343°, 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. 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).