Ba Vì weather in April

In April, Ba Vì sees average daytime highs of 29°C and overnight lows near 22°C, with 104 mm of rain across 11.1 wet days and about 12.5 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 13% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 42 min by month's end. Set against the rest of the year, April is Ba Vì's 5th-clearest and 1st-windiest month. For the whole year in context, see Ba Vì's year-round climate.

Daytime high
29°
6th warmest
Overnight low
22°
6th coldest
Rainfall
104 mm
11.1 wet days
Daylight
12 h 30 min
5:44 AM – 6:13 PM
Cloud cover
73%
5th clearest
Wind
7 km/h
1st windiest
Solar energy
4.08 kWh/m²
Travel score
5.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 30°C by the end.

A typical April day in Ba Vì reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, April runs about 4°C warmer than March and about 3°C cooler than May.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
12620
22620
32720
42720
52721
62721
72721
82821
92821
102821
112821
122821
132822
142922
152922
162922
172922
182922
192922
203022
213023
223023
233023
243023
253023
263023
273023
283023
293123
303124

How April really feels in Ba Vì

Once humidity and wind are folded in, April 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 April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ba Vì weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22575
32674
42674
52674
62773
72674
82773
92872
102971
112971
123070
133070
143070
153070
163070
173070
183169
193169
203169
213169
223169
233169
243070
253070
263169
273268
283268
293268
303268

Chance of precipitation in April

Any precipitation

Ba Vì gets around 104 mm of rain over 11.1 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 37% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
134
234
334
434
534
634
734
833
933
1033
1133
1233
1333
1434
1534
1635
1735
1836
1937
2038
2139
2240
2341
2441
2542
2643
2744
2845
2946
3047

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1591832333
2491731344
3481730355
4481730366
5381628377
6371627388
73716263910
82716244011
92715234012
102715224113
112715214115
121614204217
131614194218
141613184220
151513174221
161512174223
170512174224
180411174225
190411174226
200310174327
210310174328
22029174329
23028174330
24027174331
25017174332
26016174333
27016164234
28016164136
29016164137
30005164038

Wind in April

Winds average 7 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over April. Sunrise moves from 5:58 AM to 5:33 AM, and sunset from 6:09 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:586:09
212.25:576:09
312.25:566:09
412.25:556:09
512.35:546:10
612.35:536:10
712.35:526:10
812.35:516:11
912.35:506:11
1012.45:496:11
1112.45:496:12
1212.45:486:12
1312.45:476:12
1412.45:466:13
1512.55:456:13
1612.55:446:13
1712.55:436:14
1812.55:436:14
1912.55:426:14
2012.65:416:15
2112.65:406:15
2212.65:396:15
2312.65:396:16
2412.65:386:16
2512.75:376:16
2612.75:366:17
2712.75:366:17
2812.75:356:17
2912.75:346:18
3012.75:336:18

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.08 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 — April's 4.08 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.5Moderate
43.5Moderate
53.6Moderate
63.6Moderate
73.7Moderate
83.7Moderate
93.8Moderate
103.9Moderate
113.9Moderate
124.0Moderate
134.0Bright
144.1Bright
154.1Bright
164.2Bright
174.2Bright
184.3Bright
194.3Bright
204.3Bright
214.4Bright
224.4Bright
234.4Bright
244.5Bright
254.5Bright
264.5Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in April

Hazard calendar for Ba Vì

In seasonPeak

None of Ba Vì's seasonal hazards are active in April. 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 April a good time to visit Ba Vì?

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

5.3
Sightseeing
7th-best month of the year
6.3
Beach & pool
3rd-best month of the year

April 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 April

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

In April, Ba Vì sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 11 days see rain.

light clothesrain gear

UV index in Ba Vì in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — 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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).