Cao Bằng weather in January
In January, Cao Bằng sees average daytime highs of 16°C and overnight lows near 10°C, with 67 mm of rain across 13.3 wet days and about 10.8 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 12% of the time in January, and the air most often feels dry.
Daylight stretches from about 10 h 36 min at the start of January to 11 hours by month's end. Set against the rest of the year, January is Cao Bằng's 10th-clearest and 8th-windiest month. For the whole year in context, see Cao Bằng's year-round climate.
- Daytime high
- 16°
- 12th warmest
- Overnight low
- 10°
- 1st coldest
- Rainfall
- 67 mm
- 13.3 wet days
- Daylight
- 10 h 48 min
- 6:42 AM – 5:27 PM
- Cloud cover
- 79%
- 10th clearest
- Wind
- 7 km/h
- 8th windiest
- Solar energy
- 2.06 kWh/m²
- Travel score
- 4.3
- 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 January
Day-to-day highs hold fairly steady near 16°C through the month.
A typical January day in Cao Bằng reaches about 16°C in the afternoon and slips back to 10°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 21°C. Set against its neighbours, January runs about 2°C cooler than December and about 2°C cooler than February.
| 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) | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 |
| Avg low (°C) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 17 | 10 |
| 2 | 17 | 10 |
| 3 | 16 | 10 |
| 4 | 16 | 10 |
| 5 | 16 | 10 |
| 6 | 16 | 10 |
| 7 | 16 | 10 |
| 8 | 16 | 10 |
| 9 | 16 | 10 |
| 10 | 16 | 10 |
| 11 | 16 | 10 |
| 12 | 16 | 10 |
| 13 | 15 | 10 |
| 14 | 15 | 10 |
| 15 | 15 | 10 |
| 16 | 15 | 10 |
| 17 | 15 | 10 |
| 18 | 15 | 10 |
| 19 | 15 | 10 |
| 20 | 15 | 10 |
| 21 | 15 | 10 |
| 22 | 15 | 10 |
| 23 | 15 | 10 |
| 24 | 15 | 10 |
| 25 | 15 | 10 |
| 26 | 15 | 10 |
| 27 | 16 | 10 |
| 28 | 16 | 10 |
| 29 | 16 | 10 |
| 30 | 16 | 10 |
| 31 | 16 | 10 |
How January really feels in Cao Bằng
Once humidity and wind are folded in, January 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.
January 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 January compares with the rest of the year at a glance. January is the 12th-warmest and 10th-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 January
The sky is clear or mostly clear about 12% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 8% of January, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to cloud over as the month goes on.
| 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 (%) | 30 | 29 | 28 | 28 | 26 | 26 | 24 | 24 | 23 | 23 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 18 | 19 | 20 |
| Cloudier (%) | 70 | 71 | 72 | 72 | 74 | 74 | 76 | 76 | 77 | 77 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 82 | 83 | 83 | 84 | 84 | 84 | 84 | 84 | 84 | 82 | 82 | 82 | 81 | 80 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 30 | 70 |
| 2 | 29 | 71 |
| 3 | 28 | 72 |
| 4 | 28 | 72 |
| 5 | 26 | 74 |
| 6 | 26 | 74 |
| 7 | 24 | 76 |
| 8 | 24 | 76 |
| 9 | 23 | 77 |
| 10 | 23 | 77 |
| 11 | 21 | 79 |
| 12 | 20 | 80 |
| 13 | 19 | 81 |
| 14 | 19 | 81 |
| 15 | 18 | 82 |
| 16 | 18 | 82 |
| 17 | 18 | 82 |
| 18 | 18 | 82 |
| 19 | 17 | 83 |
| 20 | 17 | 83 |
| 21 | 16 | 84 |
| 22 | 16 | 84 |
| 23 | 16 | 84 |
| 24 | 16 | 84 |
| 25 | 16 | 84 |
| 26 | 16 | 84 |
| 27 | 18 | 82 |
| 28 | 18 | 82 |
| 29 | 18 | 82 |
| 30 | 19 | 81 |
| 31 | 20 | 80 |
Chance of precipitation in January
Cao Bằng gets around 67 mm of rain over 13.3 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 42% and peaks near 44% on the wettest days.
| 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 (%) | 38 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 39 |
| Rain chance (%) | |
|---|---|
| 1 | 38 |
| 2 | 38 |
| 3 | 39 |
| 4 | 40 |
| 5 | 40 |
| 6 | 41 |
| 7 | 41 |
| 8 | 42 |
| 9 | 42 |
| 10 | 43 |
| 11 | 43 |
| 12 | 43 |
| 13 | 43 |
| 14 | 43 |
| 15 | 43 |
| 16 | 44 |
| 17 | 44 |
| 18 | 44 |
| 19 | 44 |
| 20 | 43 |
| 21 | 43 |
| 22 | 43 |
| 23 | 43 |
| 24 | 43 |
| 25 | 43 |
| 26 | 42 |
| 27 | 42 |
| 28 | 41 |
| 29 | 41 |
| 30 | 40 |
| 31 | 39 |
Humidity in January
Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 75 | 74 | 74 | 74 | 72 | 72 | 72 | 72 | 73 | 74 | 74 | 74 | 75 | 75 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 76 | 74 | 74 | 72 | 72 | 71 | 70 | 70 | 69 |
| Comfortable (%) | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 20 |
| Humid (%) | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 75 | 18 | 7 | 0 |
| 2 | 74 | 18 | 8 | 0 |
| 3 | 74 | 18 | 8 | 0 |
| 4 | 74 | 18 | 8 | 0 |
| 5 | 72 | 19 | 9 | 0 |
| 6 | 72 | 19 | 9 | 0 |
| 7 | 72 | 19 | 9 | 0 |
| 8 | 72 | 19 | 9 | 0 |
| 9 | 73 | 18 | 9 | 0 |
| 10 | 74 | 18 | 8 | 0 |
| 11 | 74 | 18 | 8 | 0 |
| 12 | 74 | 18 | 8 | 0 |
| 13 | 75 | 17 | 8 | 0 |
| 14 | 75 | 17 | 8 | 0 |
| 15 | 76 | 17 | 7 | 0 |
| 16 | 76 | 17 | 7 | 0 |
| 17 | 76 | 17 | 7 | 0 |
| 18 | 76 | 17 | 7 | 0 |
| 19 | 76 | 17 | 7 | 0 |
| 20 | 76 | 17 | 7 | 0 |
| 21 | 76 | 17 | 7 | 0 |
| 22 | 76 | 17 | 7 | 0 |
| 23 | 76 | 17 | 7 | 0 |
| 24 | 74 | 18 | 8 | 0 |
| 25 | 74 | 18 | 8 | 0 |
| 26 | 72 | 18 | 9 | 1 |
| 27 | 72 | 18 | 9 | 1 |
| 28 | 71 | 19 | 9 | 1 |
| 29 | 70 | 19 | 10 | 1 |
| 30 | 70 | 19 | 10 | 1 |
| 31 | 69 | 20 | 10 | 1 |
Wind in January
Winds average 7 km/h in January.
Across January, 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.
| 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) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in January
Daylight runs from about 10 h 36 min at the start of January to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over January. Sunrise moves from 6:39 AM to 6:40 AM, and sunset from 5:17 PM to 5:37 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) | 10.6 | 10.6 | 10.6 | 10.6 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 10.9 | 11.0 |
| Sunrise (AM) | 6:39 | 6:39 | 6:40 | 6:40 | 6:40 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:42 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:41 | 6:40 | 6:40 | 6:40 | 6:40 |
| Sunset (PM) | 5:17 | 5:18 | 5:18 | 5:19 | 5:20 | 5:20 | 5:21 | 5:21 | 5:22 | 5:23 | 5:23 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:29 | 5:30 | 5:31 | 5:32 | 5:32 | 5:33 | 5:34 | 5:34 | 5:35 | 5:36 | 5:36 | 5:37 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.6 | 6:39 | 5:17 |
| 2 | 10.6 | 6:39 | 5:18 |
| 3 | 10.6 | 6:40 | 5:18 |
| 4 | 10.6 | 6:40 | 5:19 |
| 5 | 10.7 | 6:40 | 5:20 |
| 6 | 10.7 | 6:41 | 5:20 |
| 7 | 10.7 | 6:41 | 5:21 |
| 8 | 10.7 | 6:41 | 5:21 |
| 9 | 10.7 | 6:41 | 5:22 |
| 10 | 10.7 | 6:41 | 5:23 |
| 11 | 10.7 | 6:41 | 5:23 |
| 12 | 10.7 | 6:41 | 5:24 |
| 13 | 10.7 | 6:42 | 5:25 |
| 14 | 10.7 | 6:42 | 5:25 |
| 15 | 10.7 | 6:42 | 5:26 |
| 16 | 10.8 | 6:42 | 5:27 |
| 17 | 10.8 | 6:42 | 5:27 |
| 18 | 10.8 | 6:42 | 5:28 |
| 19 | 10.8 | 6:42 | 5:29 |
| 20 | 10.8 | 6:42 | 5:29 |
| 21 | 10.8 | 6:42 | 5:30 |
| 22 | 10.8 | 6:41 | 5:31 |
| 23 | 10.8 | 6:41 | 5:32 |
| 24 | 10.8 | 6:41 | 5:32 |
| 25 | 10.9 | 6:41 | 5:33 |
| 26 | 10.9 | 6:41 | 5:34 |
| 27 | 10.9 | 6:41 | 5:34 |
| 28 | 10.9 | 6:40 | 5:35 |
| 29 | 10.9 | 6:40 | 5:36 |
| 30 | 10.9 | 6:40 | 5:36 |
| 31 | 11.0 | 6:40 | 5:37 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 2.06 kWh/m² — the year's lowest.
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 — January's 2.06 kWh/m² sits near the bottom.
| 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) | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.1 | 2.1 | 2.1 | 2.1 | 2.2 | 2.2 | 2.2 | 2.3 | 2.3 | 2.3 |
| 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 | 2.3 | Moderate |
| 2 | 2.3 | Moderate |
| 3 | 2.2 | Moderate |
| 4 | 2.2 | Moderate |
| 5 | 2.2 | Moderate |
| 6 | 2.1 | Moderate |
| 7 | 2.1 | Moderate |
| 8 | 2.1 | Moderate |
| 9 | 2.1 | Moderate |
| 10 | 2.0 | Moderate |
| 11 | 2.0 | Moderate |
| 12 | 2.0 | Moderate |
| 13 | 2.0 | Moderate |
| 14 | 2.0 | Moderate |
| 15 | 2.0 | Moderate |
| 16 | 2.0 | Moderate |
| 17 | 2.0 | Moderate |
| 18 | 2.0 | Moderate |
| 19 | 2.0 | Moderate |
| 20 | 2.0 | Moderate |
| 21 | 2.0 | Moderate |
| 22 | 2.1 | Moderate |
| 23 | 2.1 | Moderate |
| 24 | 2.1 | Moderate |
| 25 | 2.1 | Moderate |
| 26 | 2.2 | Moderate |
| 27 | 2.2 | Moderate |
| 28 | 2.2 | Moderate |
| 29 | 2.3 | Moderate |
| 30 | 2.3 | Moderate |
| 31 | 2.3 | Moderate |
Hazard calendar for Cao Bằng
None of Cao Bằng's seasonal hazards are active in January. 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 January a good time to visit Cao Bằng?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit Cao Bằng for sightseeing.
What to pack for Cao Bằng in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Cao Bằng sees daytime highs around 16°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 13 days see rain.
UV index in Cao Bằng in January
Clear-sky midday UV in January 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 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 January
Average fine-particle pollution (PM2.5) through the year — so you can see where January 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).