Ba Vì weather in October

In October, Ba Vì sees average daytime highs of 28°C and overnight lows near 22°C, with 133 mm of rain across 12 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 27°C by the end. The sky is clear or mostly clear about 33% 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 12 min by month's end. Set against the rest of the year, October is Ba Vì's 2nd-clearest and 5th-windiest month. For the whole year in context, see Ba Vì's year-round climate.

Daytime high
28°
7th warmest
Overnight low
22°
7th coldest
Rainfall
133 mm
12 wet days
Daylight
11 h 30 min
5:58 AM – 5:29 PM
Cloud cover
58%
2nd clearest
Wind
6 km/h
5th windiest
Solar energy
3.84 kWh/m²
Travel score
5.6
out of 10

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 27°C by the end.

A typical October day in Ba Vì reaches about 28°C in the afternoon and slips back to 22°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
43023
53023
63023
72923
82923
92923
102923
112923
122923
132923
142923
152922
162822
172822
182822
192822
202822
212822
222822
232822
242821
252821
262721
272721
282721
292721
302721
312720

How October really feels in Ba Vì

Once humidity and wind are folded in, October averages 10 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
10
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.

Ba Vì 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
Jan20° / 14°377.610.96.3
Feb22° / 16°246.511.36.6
Mar24° / 18°51911.96.7
Apr29° / 22°10411.112.55.3
May32° / 25°24418.3133.3
Jun33° / 26°2311913.32.5
Jul33° / 26°27821.113.22.6
Aug32° / 26°33022.912.72.7
Sep31° / 25°23618.512.13.6
Oct28° / 22°1331211.55.6
Nov25° / 19°587.4117.2
Dec21° / 15°336.310.77.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54951
64852
74852
84852
94852
104852
114852
124852
134951
145050
155149
165149
175149
185149
195248
205248
215248
225248
235347
245347
255347
265446
275446
285446
295446
305446
315446

Chance of precipitation in October

Any precipitation

Ba Vì gets around 133 mm of rain over 12 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 38% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
345
445
544
644
744
843
943
1043
1142
1242
1341
1440
1540
1639
1738
1838
1937
2036
2136
2235
2334
2433
2532
2632
2731
2830
2929
3029
3128

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 44% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1005174731
2005174730
3006184728
4006194826
5007204825
6017214823
7018224822
8018234820
9018244819
10019244817
11019254816
120110264815
130110274814
140210274813
150211284712
161211284711
171212294710
18121229469
19131329469
20131329458
21141429457
22141529446
23251629436
24251729415
25261829405
26271829385
27291929364
282102029354
292112129344
302122228323
312122328313

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over October. Sunrise moves from 5:53 AM to 6:05 AM, and sunset from 5:42 PM to 5:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:535:42
211.85:535:41
311.85:545:40
411.75:545:39
511.75:545:38
611.75:555:37
711.75:555:36
811.75:555:35
911.65:565:34
1011.65:565:34
1111.65:565:33
1211.65:575:32
1311.65:575:31
1411.55:585:30
1511.55:585:29
1611.55:585:29
1711.55:595:28
1811.55:595:27
1911.46:005:26
2011.46:005:26
2111.46:005:25
2211.46:015:24
2311.46:015:24
2411.46:025:23
2511.36:025:22
2611.36:035:22
2711.36:035:21
2811.36:045:21
2911.36:045:20
3011.26:055:19
3111.26:055:19

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.84 kWh/m².

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 4.87 kWh/m² in June across the year — October's 3.84 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.0Bright
94.0Bright
104.0Moderate
114.0Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.6Moderate
Planning a trip in October

Hazard calendar for Ba Vì

In seasonPeak

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

Ba Vì's monsoon runs May–September, when most of the year's rain falls.

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

Is October a good time to visit Ba Vì?

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

5.6
Sightseeing
6th-best month of the year
6.6
Beach & pool
1st-best month of the year

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

What to pack for Ba Vì in October

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

In October, Ba Vì sees daytime highs around 28°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.

light clothesrain gear

UV index in Ba Vì in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ba Vì peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 20 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highHighVery highExtremeHighJun 20UV 12Nov 20UV 5
UV index (midday)Level
Jan6High
Feb7High
Mar8Very high
Apr6High
May8Very high
Jun12Extreme
Jul11Extreme
Aug11Extreme
Sep6High
Oct7Very high
Nov5High
Dec6High

Air quality in Ba Vì 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 Ba Vì is worst in December — around 171 µg/m³ PM2.5 (very unhealthy), about 3.4× the cleanest month (July, 50 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyVery unhealthyDec 19170 µg/m³Jul 1452 µg/m³
PM2.5 (µg/m³)Level
Jan161Very unhealthy
Feb136Unhealthy
Mar122Unhealthy
Apr106Unhealthy
May76Unhealthy
Jun59Unhealthy
Jul50Poor
Aug68Unhealthy
Sep96Unhealthy
Oct125Unhealthy
Nov152Very unhealthy
Dec171Very unhealthy
Location & terrain

Where is Ba Vì?

Ba Vì sits at 21.1°N, 105.4°E, 322 m above sea level, in Vietnam. The nearest listed city is Sơn Tây, 14 km away.

Topography around Ba Vì

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

Within 3 km, the terrain around Ba Vì has large variations in elevation — a maximum elevation change of 1,193 m around an average of 262 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,256 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,753 m.

The land around Ba Vì is covered by trees (94%) within 3 km, trees (67%) within 16 km, and trees (68%) within 80 km.

3 km
1,193 m
16 km
1,256 m
80 km
1,753 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Sơn Tây 14 km · Cổ Đô 22 km · Việt Trì 27 km · Đan Phượng 29 km · Xuân Mai 29 km · Hòa Bình 30 km · Vĩnh Yên 34 km · Thượng Cát 36 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 Ba Vì (21.0833°, 105.3833°, elevation 322 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. 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).