Cao Bằng weather in June

In June, Cao Bằng sees average daytime highs of 29°C and overnight lows near 23°C, with 293 mm of rain across 25.2 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 3% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 13 h 18 min at the start of June to 13 h 24 min by month's end. Set against the rest of the year, June is Cao Bằng's 12th-clearest and 11th-windiest month. For the whole year in context, see Cao Bằng's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
23°
11th coldest
Rainfall
293 mm
25.2 wet days
Daylight
13 h 24 min
5:14 AM – 6:37 PM
Cloud cover
88%
12th clearest
Wind
7 km/h
11th windiest
Solar energy
4.3 kWh/m²
Travel score
3.2
out of 10

Cao Bằng is former provincial capital city of Cao Bằng province, Vietnam.

Density
683/km²
people per km²
Founded
2012

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical June day in Cao Bằng 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 26°C and 32°C. Set against its neighbours, June runs about 1°C warmer than May and on par with July.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12922
22923
32923
42923
52923
62923
72923
82923
92923
102923
112923
122923
132923
142923
152923
162923
172923
182923
192923
202923
212923
222923
232924
242924
252924
262924
272924
282924
292924
302924

How June really feels in Cao Bằng

Once humidity and wind are folded in, June averages 27 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
27
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in June is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cao Bằng weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 10°6713.310.84.3
Feb18° / 12°5211.411.25.1
Mar21° / 15°891611.85.3
Apr25° / 19°11117.112.55.3
May28° / 21°21422.313.14.3
Jun29° / 23°29325.213.43.2
Jul30° / 23°30226.413.23.1
Aug30° / 23°26824.412.83.4
Sep29° / 22°15616.812.14.8
Oct26° / 19°871211.56.3
Nov22° / 15°699.710.96.6
Dec18° / 11°509.410.65.7

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 5% of June, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11189
21189
31090
4991
5991
61090
7991
8991
9991
10991
11892
12892
13793
14793
15793
16892
17892
18793
19793
20793
21892
22892
23892
24892
25892
26991
27991
281090
291090
301090

Chance of precipitation in June

Any precipitation

Cao Bằng gets around 293 mm of rain over 25.2 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 84% and peaks near 86% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
178
278
379
480
580
681
782
882
983
1083
1183
1284
1384
1484
1585
1685
1785
1885
1985
2085
2186
2286
2386
2486
2585
2685
2785
2885
2985
3085

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11419697
21418698
30317728
40316729
503157210
602147410
702147311
802137312
902127313
1002127115
1102117116
1201107217
1301107019
140197020
150196822
160186823
170186724
180176725
190166726
200166726
210156826
220047026
230047026
240037126
250037126
260027226
270027325
280027325
290027424
300027523

Wind in June

Winds average 7 km/h in June.

Across June, daily wind ranges from about 7 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
17calm
27calm
37calm
47calm
57calm
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 June

DaylightNight

Daylight runs from about 13 h 18 min at the start of June to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:14 AM to 5:17 AM, and sunset from 6:31 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:146:31
213.35:146:31
313.35:146:32
413.35:146:32
513.35:146:33
613.35:136:33
713.35:136:34
813.35:136:34
913.35:136:34
1013.45:136:35
1113.45:136:35
1213.45:136:35
1313.45:146:36
1413.45:146:36
1513.45:146:36
1613.45:146:37
1713.45:146:37
1813.45:146:37
1913.45:146:37
2013.45:146:38
2113.45:156:38
2213.45:156:38
2313.45:156:38
2413.45:156:39
2513.45:156:39
2613.45:166:39
2713.45:166:39
2813.45:166:39
2913.45:166:39
3013.45:176:39

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.3 kWh/m².

For context, solar energy here swings from a low near 2.06 kWh/m² to a high of 4.43 kWh/m² in August across the year — June's 4.3 kWh/m² sits near the top of that range.

012345151015202530
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
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in June

Hazard calendar for Cao Bằng

In seasonPeak

In June, Cao Bằng sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Cao Bằng'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 June a good time to visit Cao Bằng?

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

3.2
Sightseeing
11th-best month of the year
4.3
Beach & pool
7th-best month of the year

June is a weaker month for outdoor sightseeing in Cao Bằng.

What to pack for Cao Bằng in June

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

In June, Cao Bằng sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

UV index in Cao Bằng in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cao Bằng peaks around June 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJun 22UV 13Dec 19UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr7Very high
May8Very high
Jun13Extreme
Jul12Extreme
Aug10Extreme
Sep9Very high
Oct7High
Nov6High
Dec6High

Air quality in Cao Bằng in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June falls, not just the annual average.

Air quality in Cao Bằng is worst in April — around 44 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (July, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorApr 944 µg/m³Jul 2020 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb41Poor
Mar44Poor
Apr44Poor
May30Moderate
Jun23Moderate
Jul20Moderate
Aug21Moderate
Sep24Moderate
Oct28Moderate
Nov33Moderate
Dec39Poor
Location & terrain

Where is Cao Bằng?

Cao Bằng sits at 22.7°N, 106.3°E, 197 m above sea level, in Vietnam. The nearest listed city is Thị Trấn Nước Hai, 13 km away.

Lạng SơnThái NguyênThị Trấn Na DươngThị Trấn Đại Từ

Topography around Cao Bằng

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

Within 3 km, the terrain around Cao Bằng has significant variations in elevation — a maximum elevation change of 396 m around an average of 252 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 818 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,806 m.

The land around Cao Bằng is covered by trees (75%) within 3 km, trees (88%) within 16 km, and trees (88%) within 80 km.

3 km
396 m
16 km
818 m
80 km
1,806 m
treesgrasslandcroplandartificial surfacesbare terrainwater
June weather nearby: Thị Trấn Nước Hai 13 km · Thị Trấn Trùng Khánh 33 km · Thị Trấn Thất Khê 51 km · Bắc Kạn 72 km · Lạng Sơn 104 km · Thái Nguyên 126 km · Thị Trấn Na Dương 129 km · Thị Trấn Đại Từ 131 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 Cao Bằng (22.6657°, 106.2579°, elevation 197 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).