Cao Bằng weather in March
In March, Cao Bằng sees average daytime highs of 21°C and overnight lows near 15°C, with 89 mm of rain across 16 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.
Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 11% of the time in March, and the air most often feels dry.
Daylight stretches from about 11 h 30 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Cao Bằng's 8th-clearest and 2nd-windiest month. For the whole year in context, see Cao Bằng's year-round climate.
- Daytime high
- 21°
- 9th warmest
- Overnight low
- 15°
- 4th coldest
- Rainfall
- 89 mm
- 16 wet days
- Daylight
- 11 h 48 min
- 6:10 AM – 6:00 PM
- Cloud cover
- 79%
- 8th clearest
- Wind
- 8 km/h
- 2nd windiest
- Solar energy
- 2.99 kWh/m²
- Travel score
- 5.3
- 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 March
Highs climb over the month, from about 19°C in the first days to 22°C by the end.
A typical March day in Cao Bằng reaches about 21°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 27°C. Set against its neighbours, March runs about 3°C warmer than February and about 5°C cooler than April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg low (°C) | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 19 | 13 |
| 2 | 19 | 13 |
| 3 | 19 | 13 |
| 4 | 19 | 13 |
| 5 | 19 | 14 |
| 6 | 20 | 14 |
| 7 | 20 | 14 |
| 8 | 20 | 14 |
| 9 | 20 | 14 |
| 10 | 20 | 14 |
| 11 | 20 | 14 |
| 12 | 20 | 14 |
| 13 | 20 | 14 |
| 14 | 20 | 15 |
| 15 | 20 | 15 |
| 16 | 21 | 15 |
| 17 | 21 | 15 |
| 18 | 21 | 15 |
| 19 | 21 | 15 |
| 20 | 21 | 15 |
| 21 | 21 | 15 |
| 22 | 21 | 15 |
| 23 | 21 | 16 |
| 24 | 21 | 16 |
| 25 | 22 | 16 |
| 26 | 22 | 16 |
| 27 | 22 | 16 |
| 28 | 22 | 16 |
| 29 | 22 | 16 |
| 30 | 22 | 16 |
| 31 | 22 | 17 |
How March really feels in Cao Bằng
Once humidity and wind are folded in, March 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.
March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Cao Bằng weather by month
How March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 16° / 10° | 67 | 13.3 | 10.8 | 4.3 |
| Feb | 18° / 12° | 52 | 11.4 | 11.2 | 5.1 |
| Mar | 21° / 15° | 89 | 16 | 11.8 | 5.3 |
| Apr | 25° / 19° | 111 | 17.1 | 12.5 | 5.3 |
| May | 28° / 21° | 214 | 22.3 | 13.1 | 4.3 |
| Jun | 29° / 23° | 293 | 25.2 | 13.4 | 3.2 |
| Jul | 30° / 23° | 302 | 26.4 | 13.2 | 3.1 |
| Aug | 30° / 23° | 268 | 24.4 | 12.8 | 3.4 |
| Sep | 29° / 22° | 156 | 16.8 | 12.1 | 4.8 |
| Oct | 26° / 19° | 87 | 12 | 11.5 | 6.3 |
| Nov | 22° / 15° | 69 | 9.7 | 10.9 | 6.6 |
| Dec | 18° / 11° | 50 | 9.4 | 10.6 | 5.7 |
Cloud cover in March
The sky is clear or mostly clear about 11% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 11% of March, with mostly cloudy or overcast conditions the remaining 78%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Cloudier (%) | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 77 | 77 | 77 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 79 | 79 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 23 | 77 |
| 2 | 23 | 77 |
| 3 | 23 | 77 |
| 4 | 23 | 77 |
| 5 | 23 | 77 |
| 6 | 23 | 77 |
| 7 | 24 | 76 |
| 8 | 24 | 76 |
| 9 | 24 | 76 |
| 10 | 23 | 77 |
| 11 | 23 | 77 |
| 12 | 23 | 77 |
| 13 | 23 | 77 |
| 14 | 22 | 78 |
| 15 | 22 | 78 |
| 16 | 22 | 78 |
| 17 | 22 | 78 |
| 18 | 22 | 78 |
| 19 | 22 | 78 |
| 20 | 21 | 79 |
| 21 | 21 | 79 |
| 22 | 21 | 79 |
| 23 | 21 | 79 |
| 24 | 21 | 79 |
| 25 | 20 | 80 |
| 26 | 20 | 80 |
| 27 | 20 | 80 |
| 28 | 20 | 80 |
| 29 | 20 | 80 |
| 30 | 20 | 80 |
| 31 | 20 | 80 |
Chance of precipitation in March
Cao Bằng gets around 89 mm of rain over 16 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 51% and peaks near 58% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 46 | 46 | 47 | 48 | 49 | 49 | 50 | 51 | 52 | 53 | 54 | 54 | 55 | 55 | 56 | 57 | 57 | 57 | 58 | 58 | 57 | 57 | 57 | 57 |
| Rain chance (%) | |
|---|---|
| 1 | 45 |
| 2 | 45 |
| 3 | 45 |
| 4 | 45 |
| 5 | 45 |
| 6 | 45 |
| 7 | 45 |
| 8 | 46 |
| 9 | 46 |
| 10 | 47 |
| 11 | 48 |
| 12 | 49 |
| 13 | 49 |
| 14 | 50 |
| 15 | 51 |
| 16 | 52 |
| 17 | 53 |
| 18 | 54 |
| 19 | 54 |
| 20 | 55 |
| 21 | 55 |
| 22 | 56 |
| 23 | 57 |
| 24 | 57 |
| 25 | 57 |
| 26 | 58 |
| 27 | 58 |
| 28 | 57 |
| 29 | 57 |
| 30 | 57 |
| 31 | 57 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the dry band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 43 | 42 | 40 | 38 | 37 | 35 | 34 | 33 | 31 | 30 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 22 | 21 | 20 | 19 | 18 |
| Comfortable (%) | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 22 | 22 |
| Humid (%) | 21 | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 |
| Muggy (%) | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 20 | 21 | 22 | 22 | 23 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 29 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 51 | 18 | 21 | 10 | 0 |
| 2 | 50 | 18 | 21 | 11 | 0 |
| 3 | 49 | 18 | 22 | 11 | 0 |
| 4 | 48 | 18 | 22 | 11 | 0 |
| 5 | 47 | 19 | 23 | 11 | 0 |
| 6 | 46 | 19 | 23 | 12 | 0 |
| 7 | 45 | 19 | 24 | 12 | 0 |
| 8 | 43 | 20 | 24 | 12 | 0 |
| 9 | 42 | 20 | 25 | 13 | 0 |
| 10 | 40 | 21 | 25 | 14 | 0 |
| 11 | 38 | 21 | 26 | 15 | 0 |
| 12 | 37 | 21 | 26 | 16 | 0 |
| 13 | 35 | 22 | 26 | 17 | 0 |
| 14 | 34 | 22 | 26 | 18 | 0 |
| 15 | 33 | 22 | 26 | 20 | 0 |
| 16 | 31 | 22 | 26 | 21 | 1 |
| 17 | 30 | 22 | 26 | 22 | 1 |
| 18 | 29 | 22 | 25 | 22 | 1 |
| 19 | 28 | 22 | 25 | 23 | 1 |
| 20 | 28 | 22 | 25 | 24 | 1 |
| 21 | 27 | 22 | 25 | 24 | 1 |
| 22 | 26 | 22 | 26 | 25 | 1 |
| 23 | 25 | 22 | 26 | 25 | 2 |
| 24 | 24 | 22 | 26 | 26 | 2 |
| 25 | 24 | 22 | 26 | 26 | 2 |
| 26 | 23 | 22 | 26 | 26 | 2 |
| 27 | 22 | 22 | 27 | 27 | 2 |
| 28 | 21 | 23 | 27 | 27 | 3 |
| 29 | 20 | 23 | 27 | 28 | 3 |
| 30 | 19 | 22 | 27 | 28 | 3 |
| 31 | 18 | 22 | 27 | 29 | 4 |
Wind in March
Winds average 8 km/h in March.
Across March, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in March
Daylight runs from about 11 h 30 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 42 minutes over March. Sunrise moves from 6:23 AM to 5:55 AM, and sunset from 5:53 PM to 6:05 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 | 12.2 |
| Sunrise (AM) | 6:23 | 6:22 | 6:21 | 6:20 | 6:20 | 6:19 | 6:18 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:11 | 6:10 | 6:10 | 6:09 | 6:08 | 6:07 | 6:06 | 6:05 | 6:04 | 6:03 | 6:02 | 6:01 | 6:00 | 5:59 | 5:58 | 5:57 | 5:56 | 5:55 |
| Sunset (PM) | 5:53 | 5:54 | 5:54 | 5:55 | 5:55 | 5:56 | 5:56 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:59 | 5:59 | 5:59 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 | 6:03 | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:23 | 5:53 |
| 2 | 11.5 | 6:22 | 5:54 |
| 3 | 11.6 | 6:21 | 5:54 |
| 4 | 11.6 | 6:20 | 5:55 |
| 5 | 11.6 | 6:20 | 5:55 |
| 6 | 11.6 | 6:19 | 5:56 |
| 7 | 11.6 | 6:18 | 5:56 |
| 8 | 11.7 | 6:17 | 5:57 |
| 9 | 11.7 | 6:16 | 5:57 |
| 10 | 11.7 | 6:15 | 5:57 |
| 11 | 11.7 | 6:14 | 5:58 |
| 12 | 11.7 | 6:13 | 5:58 |
| 13 | 11.8 | 6:12 | 5:59 |
| 14 | 11.8 | 6:11 | 5:59 |
| 15 | 11.8 | 6:10 | 5:59 |
| 16 | 11.8 | 6:10 | 6:00 |
| 17 | 11.9 | 6:09 | 6:00 |
| 18 | 11.9 | 6:08 | 6:01 |
| 19 | 11.9 | 6:07 | 6:01 |
| 20 | 11.9 | 6:06 | 6:01 |
| 21 | 11.9 | 6:05 | 6:02 |
| 22 | 12.0 | 6:04 | 6:02 |
| 23 | 12.0 | 6:03 | 6:02 |
| 24 | 12.0 | 6:02 | 6:03 |
| 25 | 12.0 | 6:01 | 6:03 |
| 26 | 12.1 | 6:00 | 6:03 |
| 27 | 12.1 | 5:59 | 6:04 |
| 28 | 12.1 | 5:58 | 6:04 |
| 29 | 12.1 | 5:57 | 6:04 |
| 30 | 12.2 | 5:56 | 6:05 |
| 31 | 12.2 | 5:55 | 6:05 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 2.99 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 — March's 2.99 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.8 | Moderate |
| 2 | 2.8 | Moderate |
| 3 | 2.8 | Moderate |
| 4 | 2.9 | Moderate |
| 5 | 2.9 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 2.9 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 2.9 | Moderate |
| 15 | 2.9 | Moderate |
| 16 | 2.9 | Moderate |
| 17 | 3.0 | Moderate |
| 18 | 3.0 | Moderate |
| 19 | 3.0 | Moderate |
| 20 | 3.0 | Moderate |
| 21 | 3.0 | Moderate |
| 22 | 3.0 | Moderate |
| 23 | 3.0 | Moderate |
| 24 | 3.0 | Moderate |
| 25 | 3.1 | Moderate |
| 26 | 3.1 | Moderate |
| 27 | 3.1 | Moderate |
| 28 | 3.1 | Moderate |
| 29 | 3.1 | Moderate |
| 30 | 3.2 | Moderate |
| 31 | 3.2 | Moderate |
Hazard calendar for Cao Bằng
None of Cao Bằng's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Cao Bằng's monsoon runs May–September, when most of the year's rain falls.
Is March a good time to visit Cao Bằng?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Cao Bằng for sightseeing.
What to pack for Cao Bằng in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Cao Bằng sees daytime highs around 21°C and nights near 15°C. Pack rain gear. About 16 days see rain.
UV index in Cao Bằng in March
Clear-sky midday UV in March 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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 6 | 8 | 10 | 7 | 8 | 13 | 12 | 10 | 9 | 7 | 6 | 6 |
| Level | High | Very high | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Very high | High | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 8 | Very high |
| Mar | 10 | Extreme |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 10 | Extreme |
| Sep | 9 | Very high |
| Oct | 7 | High |
| Nov | 6 | High |
| Dec | 6 | High |
Air quality in Cao Bằng in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 39 | 41 | 44 | 44 | 30 | 23 | 20 | 21 | 24 | 28 | 33 | 39 |
| Level | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 39 | Poor |
| Feb | 41 | Poor |
| Mar | 44 | Poor |
| Apr | 44 | Poor |
| May | 30 | Moderate |
| Jun | 23 | Moderate |
| Jul | 20 | Moderate |
| Aug | 21 | Moderate |
| Sep | 24 | Moderate |
| Oct | 28 | Moderate |
| Nov | 33 | Moderate |
| Dec | 39 | Poor |
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.
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.
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
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).