Bỉm Sơn weather in October

In October, Bỉm Sơn sees average daytime highs of 29°C and overnight lows near 23°C, with 156 mm of rain across 14.5 wet days and about 11.5 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 29% 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 18 min by month's end. Set against the rest of the year, October is Bỉm Sơn's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Bỉm Sơn's year-round climate.

Daytime high
29°
7th warmest
Overnight low
23°
7th coldest
Rainfall
156 mm
14.5 wet days
Daylight
11 h 30 min
5:56 AM – 5:28 PM
Cloud cover
62%
2nd clearest
Wind
9 km/h
3rd windiest
Solar energy
3.9 kWh/m²
Travel score
5.1
out of 10

Bỉm Sơn is district-level town in Thanh Hóa province, Vietnam.

Density
802/km²
people per km²
Founded
1981

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 30°C in the first days to 28°C by the end.

A typical October day in Bỉm Sơn reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, October runs about 2°C cooler than September and about 3°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73023
83023
92923
102923
112923
122923
132923
142923
152923
162923
172923
182922
192822
202822
212822
222822
232822
242822
252822
262821
272821
282821
292821
302721
312721

How October really feels in Bỉm Sơn

Once humidity and wind are folded in, October averages 13 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
13
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.

Bỉm Sơn weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 15°295.610.96.7
Feb22° / 16°174.411.37.0
Mar25° / 19°356.711.97.0
Apr29° / 22°648.612.45.5
May32° / 25°17815.512.93.3
Jun34° / 27°17814.613.22.5
Jul33° / 27°23417.813.12.5
Aug32° / 26°3242312.72.6
Sep31° / 25°27820.812.13.2
Oct29° / 23°15614.511.55.1
Nov26° / 19°577.9116.9
Dec22° / 16°255.410.87.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24456
34456
44456
54456
64555
74555
84555
94555
104555
114555
124555
134555
144654
154654
164753
174654
184654
194654
204753
214753
224852
234852
244951
255050
265050
275050
285149
295149
305248
315248

Chance of precipitation in October

Any precipitation

Bỉm Sơn gets around 156 mm of rain over 14.5 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 46% and peaks near 57% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
157
257
356
456
556
655
755
855
954
1053
1153
1251
1350
1449
1548
1646
1745
1844
1944
2043
2142
2241
2339
2438
2537
2636
2735
2834
2933
3033
3132

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 84% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1004143448
2004143547
3014153545
4015163544
5015173542
6015173641
7016183639
8016193737
9017193735
10017203833
11018213931
12019213929
13029224027
140210224026
150210234124
161211234123
171211234121
181312234220
191313234218
201313234317
212414224316
222415224315
232515224214
242516224213
253616224112
263717214011
273818213811
283919213710
2931019213610
304112021359
314122121349

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over October. Sunrise moves from 5:51 AM to 6:02 AM, and sunset from 5:40 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:515:40
211.85:515:39
311.85:525:38
411.85:525:37
511.75:525:37
611.75:525:36
711.75:535:35
811.75:535:34
911.75:535:33
1011.65:545:32
1111.65:545:31
1211.65:545:31
1311.65:555:30
1411.65:555:29
1511.65:555:28
1611.55:565:28
1711.55:565:27
1811.55:565:26
1911.55:575:25
2011.55:575:25
2111.45:585:24
2211.45:585:23
2311.45:585:23
2411.45:595:22
2511.45:595:21
2611.46:005:21
2711.36:005:20
2811.36:015:20
2911.36:015:19
3011.36:025:19
3111.36:025:18

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.9 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.33 kWh/m² in June across the year — October's 3.9 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.0Bright
104.0Bright
114.0Moderate
124.0Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in October

Hazard calendar for Bỉm Sơn

In seasonPeak

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

Bỉm Sơn sits in the Pacific typhoon belt; the season peaks July–October.

Bỉm Sơn'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 Bỉm Sơn?

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

5.1
Sightseeing
7th-best month of the year
6.2
Beach & pool
4th-best month of the year

October is a reasonable time to visit Bỉm Sơn for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Bỉm Sơn in October

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

In October, Bỉm Sơn sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 15 days see rain.

light clothesrain gear

Sea temperature near Bỉm Sơn 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 at the nearest coast (about 36 km away) is warmest in August at about 30°C and coldest in February near 20°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb20Refreshing
Mar21Refreshing
Apr24Refreshing
May28Warm
Jun29Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Bỉm Sơn in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bỉm Sơn peaks around July 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 14UV 12Dec 15UV 6
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar10Very high
Apr8Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Bỉm Sơn 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 Bỉm Sơn is worst in December — around 134 µg/m³ PM2.5 (unhealthy), about 3.8× the cleanest month (July, 35 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyDec 20132 µg/m³Jul 1536 µg/m³
PM2.5 (µg/m³)Level
Jan126Unhealthy
Feb106Unhealthy
Mar94Unhealthy
Apr87Unhealthy
May60Unhealthy
Jun42Poor
Jul35Moderate
Aug46Poor
Sep69Unhealthy
Oct93Unhealthy
Nov116Unhealthy
Dec134Unhealthy
Location & terrain

Where is Bỉm Sơn?

Bỉm Sơn sits at 20.1°N, 105.9°E, 7 m above sea level, in Vietnam. The nearest listed city is Nga Sơn, 14 km away.

Topography around Bỉm Sơn

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

Within 3 km, the terrain around Bỉm Sơn has only modest variations in elevation — a maximum elevation change of 99 m around an average of 13 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 327 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,500 m.

The land around Bỉm Sơn is covered by trees (39%) and cropland (27%) within 3 km, trees (52%) and cropland (33%) within 16 km, and trees (41%), cropland (29%) and water (23%) within 80 km.

3 km
99 m
16 km
327 m
80 km
1,500 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Nga Sơn 14 km · Ninh Binh 24 km · Thanh Hóa 32 km · Sầm Sơn 39 km · Thị Trấn Lam Sơn 51 km · Nam Định 52 km · Phủ Lý 52 km · Thái Bình 65 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 Bỉm Sơn (20.0781°, 105.8603°, elevation 7 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).