Thành Phố Uông Bí weather in December
In December, Thành Phố Uông Bí sees average daytime highs of 22°C and overnight lows near 15°C, with 29 mm of rain across 5.7 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.
Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 27% of the time in December, and the air most often feels dry.
Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Thành Phố Uông Bí's 3rd-clearest and 8th-windiest month. For the whole year in context, see Thành Phố Uông Bí's year-round climate.
- Daytime high
- 22°
- 10th warmest
- Overnight low
- 15°
- 2nd coldest
- Rainfall
- 29 mm
- 5.7 wet days
- Daylight
- 10 h 42 min
- 6:27 AM – 5:11 PM
- Cloud cover
- 63%
- 3rd clearest
- Wind
- 8 km/h
- 8th windiest
- Solar energy
- 2.75 kWh/m²
- Travel score
- 7.1
- out of 10
Thành Phố Uông Bí is city in north-east, Vietnam.
- Density
- 249/km²
- people per km²
- Founded
- 1961
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 23°C in the first days to 21°C by the end.
A typical December day in Thành Phố Uông Bí reaches about 22°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 26°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.
| 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) | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg low (°C) | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 17 |
| 2 | 23 | 17 |
| 3 | 23 | 17 |
| 4 | 23 | 16 |
| 5 | 23 | 16 |
| 6 | 23 | 16 |
| 7 | 22 | 16 |
| 8 | 22 | 16 |
| 9 | 22 | 16 |
| 10 | 22 | 16 |
| 11 | 22 | 15 |
| 12 | 22 | 15 |
| 13 | 22 | 15 |
| 14 | 22 | 15 |
| 15 | 21 | 15 |
| 16 | 21 | 15 |
| 17 | 21 | 15 |
| 18 | 21 | 15 |
| 19 | 21 | 15 |
| 20 | 21 | 15 |
| 21 | 21 | 15 |
| 22 | 21 | 14 |
| 23 | 21 | 14 |
| 24 | 21 | 14 |
| 25 | 21 | 14 |
| 26 | 21 | 14 |
| 27 | 21 | 14 |
| 28 | 21 | 14 |
| 29 | 21 | 14 |
| 30 | 21 | 14 |
| 31 | 21 | 14 |
How December really feels in Thành Phố Uông Bí
Once humidity and wind are folded in, December 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.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Thành Phố Uông Bí weather by month
How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 20° / 14° | 30 | 6 | 10.9 | 6.4 |
| Feb | 21° / 16° | 19 | 5.7 | 11.3 | 6.5 |
| Mar | 23° / 18° | 43 | 9.1 | 11.9 | 6.6 |
| Apr | 27° / 22° | 75 | 12 | 12.5 | 5.6 |
| May | 31° / 25° | 241 | 19.8 | 13 | 3.6 |
| Jun | 32° / 27° | 260 | 22.5 | 13.3 | 2.6 |
| Jul | 32° / 27° | 290 | 24.6 | 13.2 | 2.5 |
| Aug | 32° / 26° | 371 | 26.6 | 12.7 | 2.5 |
| Sep | 31° / 25° | 242 | 20.3 | 12.1 | 3.4 |
| Oct | 29° / 22° | 104 | 12.5 | 11.5 | 5.4 |
| Nov | 26° / 19° | 53 | 7.8 | 11 | 7.1 |
| Dec | 22° / 15° | 29 | 5.7 | 10.7 | 7.1 |
Cloud cover in December
The sky is clear or mostly clear about 27% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 61%.
| 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 (%) | 45 | 44 | 43 | 42 | 40 | 40 | 39 | 38 | 38 | 37 | 37 | 37 | 38 | 38 | 39 | 38 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 38 | 38 | 37 | 37 | 35 | 33 |
| Cloudier (%) | 55 | 56 | 57 | 58 | 60 | 60 | 61 | 62 | 62 | 63 | 63 | 63 | 62 | 62 | 61 | 62 | 61 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 62 | 62 | 63 | 63 | 65 | 67 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 45 | 55 |
| 2 | 44 | 56 |
| 3 | 43 | 57 |
| 4 | 42 | 58 |
| 5 | 40 | 60 |
| 6 | 40 | 60 |
| 7 | 39 | 61 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 37 | 63 |
| 11 | 37 | 63 |
| 12 | 37 | 63 |
| 13 | 38 | 62 |
| 14 | 38 | 62 |
| 15 | 39 | 61 |
| 16 | 38 | 62 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 40 | 60 |
| 20 | 40 | 60 |
| 21 | 40 | 60 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 40 | 60 |
| 25 | 40 | 60 |
| 26 | 38 | 62 |
| 27 | 38 | 62 |
| 28 | 37 | 63 |
| 29 | 37 | 63 |
| 30 | 35 | 65 |
| 31 | 33 | 67 |
Chance of precipitation in December
Thành Phố Uông Bí gets around 29 mm of rain over 5.7 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 19% and peaks near 23% 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 (%) | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 |
| Rain chance (%) | |
|---|---|
| 1 | 23 |
| 2 | 23 |
| 3 | 22 |
| 4 | 22 |
| 5 | 21 |
| 6 | 21 |
| 7 | 20 |
| 8 | 20 |
| 9 | 20 |
| 10 | 19 |
| 11 | 19 |
| 12 | 19 |
| 13 | 18 |
| 14 | 18 |
| 15 | 18 |
| 16 | 18 |
| 17 | 17 |
| 18 | 17 |
| 19 | 17 |
| 20 | 17 |
| 21 | 17 |
| 22 | 17 |
| 23 | 17 |
| 24 | 17 |
| 25 | 17 |
| 26 | 17 |
| 27 | 18 |
| 28 | 18 |
| 29 | 18 |
| 30 | 19 |
| 31 | 19 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 44% of days. Sticky, muggy-or-worse air turns up on roughly 17% 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 (%) | 30 | 32 | 33 | 35 | 36 | 37 | 39 | 40 | 41 | 43 | 44 | 45 | 46 | 47 | 47 | 48 | 48 | 48 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 46 | 46 |
| Comfortable (%) | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 20 |
| Humid (%) | 22 | 22 | 22 | 21 | 21 | 20 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 20 | 21 |
| Muggy (%) | 18 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 13 |
| Oppressive (%) | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Miserable (%) | 1 | 1 | 1 | 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 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 30 | 20 | 22 | 18 | 8 | 1 |
| 2 | 32 | 21 | 22 | 17 | 7 | 1 |
| 3 | 33 | 21 | 22 | 17 | 7 | 1 |
| 4 | 35 | 21 | 21 | 16 | 7 | 0 |
| 5 | 36 | 21 | 21 | 15 | 6 | 0 |
| 6 | 37 | 22 | 20 | 15 | 6 | 0 |
| 7 | 39 | 22 | 19 | 14 | 6 | 0 |
| 8 | 40 | 22 | 19 | 14 | 5 | 0 |
| 9 | 41 | 22 | 18 | 13 | 5 | 0 |
| 10 | 43 | 22 | 18 | 13 | 5 | 0 |
| 11 | 44 | 21 | 18 | 13 | 4 | 0 |
| 12 | 45 | 21 | 17 | 13 | 4 | 0 |
| 13 | 46 | 20 | 17 | 13 | 4 | 0 |
| 14 | 47 | 20 | 17 | 13 | 4 | 0 |
| 15 | 47 | 19 | 17 | 13 | 4 | 0 |
| 16 | 48 | 19 | 17 | 13 | 3 | 0 |
| 17 | 48 | 19 | 17 | 13 | 3 | 0 |
| 18 | 48 | 19 | 16 | 13 | 3 | 0 |
| 19 | 49 | 19 | 16 | 13 | 3 | 0 |
| 20 | 49 | 19 | 17 | 12 | 3 | 0 |
| 21 | 49 | 20 | 17 | 12 | 3 | 0 |
| 22 | 49 | 20 | 17 | 12 | 2 | 0 |
| 23 | 49 | 20 | 17 | 12 | 2 | 0 |
| 24 | 49 | 20 | 18 | 11 | 2 | 0 |
| 25 | 49 | 21 | 18 | 11 | 2 | 0 |
| 26 | 48 | 21 | 19 | 11 | 1 | 0 |
| 27 | 48 | 21 | 19 | 11 | 1 | 0 |
| 28 | 47 | 21 | 20 | 11 | 1 | 0 |
| 29 | 47 | 21 | 20 | 12 | 1 | 0 |
| 30 | 46 | 21 | 20 | 12 | 1 | 0 |
| 31 | 46 | 20 | 21 | 13 | 1 | 0 |
Wind in December
Winds average 8 km/h in December.
Across December, 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 December
Daylight runs from about 10 h 48 min at the start of December to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:18 AM to 6:34 AM, and sunset from 5:07 PM to 5:18 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) | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 | 10.7 |
| Sunrise (AM) | 6:18 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:26 | 6:26 | 6:27 | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:32 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 |
| Sunset (PM) | 5:07 | 5:07 | 5:07 | 5:07 | 5:08 | 5:08 | 5:08 | 5:08 | 5:09 | 5:09 | 5:09 | 5:10 | 5:10 | 5:10 | 5:11 | 5:11 | 5:11 | 5:12 | 5:12 | 5:13 | 5:13 | 5:13 | 5:14 | 5:14 | 5:15 | 5:15 | 5:16 | 5:17 | 5:17 | 5:18 | 5:18 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.8 | 6:18 | 5:07 |
| 2 | 10.8 | 6:19 | 5:07 |
| 3 | 10.8 | 6:20 | 5:07 |
| 4 | 10.8 | 6:20 | 5:07 |
| 5 | 10.8 | 6:21 | 5:08 |
| 6 | 10.8 | 6:21 | 5:08 |
| 7 | 10.8 | 6:22 | 5:08 |
| 8 | 10.8 | 6:23 | 5:08 |
| 9 | 10.8 | 6:23 | 5:09 |
| 10 | 10.8 | 6:24 | 5:09 |
| 11 | 10.7 | 6:24 | 5:09 |
| 12 | 10.7 | 6:25 | 5:10 |
| 13 | 10.7 | 6:26 | 5:10 |
| 14 | 10.7 | 6:26 | 5:10 |
| 15 | 10.7 | 6:27 | 5:11 |
| 16 | 10.7 | 6:27 | 5:11 |
| 17 | 10.7 | 6:28 | 5:11 |
| 18 | 10.7 | 6:28 | 5:12 |
| 19 | 10.7 | 6:29 | 5:12 |
| 20 | 10.7 | 6:29 | 5:13 |
| 21 | 10.7 | 6:30 | 5:13 |
| 22 | 10.7 | 6:30 | 5:13 |
| 23 | 10.7 | 6:31 | 5:14 |
| 24 | 10.7 | 6:31 | 5:14 |
| 25 | 10.7 | 6:32 | 5:15 |
| 26 | 10.7 | 6:32 | 5:15 |
| 27 | 10.7 | 6:32 | 5:16 |
| 28 | 10.7 | 6:33 | 5:17 |
| 29 | 10.7 | 6:33 | 5:17 |
| 30 | 10.7 | 6:34 | 5:18 |
| 31 | 10.7 | 6:34 | 5:18 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.75 kWh/m².
For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 4.96 kWh/m² in June across the year — December's 2.75 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) | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.6 | 2.6 |
| 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 | 2.9 | Moderate |
| 2 | 2.9 | Moderate |
| 3 | 2.9 | Moderate |
| 4 | 2.8 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.8 | Moderate |
| 7 | 2.8 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.7 | Moderate |
| 11 | 2.7 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.7 | Moderate |
| 14 | 2.7 | Moderate |
| 15 | 2.7 | Moderate |
| 16 | 2.7 | Moderate |
| 17 | 2.7 | Moderate |
| 18 | 2.8 | Moderate |
| 19 | 2.8 | Moderate |
| 20 | 2.8 | Moderate |
| 21 | 2.8 | Moderate |
| 22 | 2.8 | Moderate |
| 23 | 2.8 | Moderate |
| 24 | 2.8 | Moderate |
| 25 | 2.7 | Moderate |
| 26 | 2.7 | Moderate |
| 27 | 2.7 | Moderate |
| 28 | 2.7 | Moderate |
| 29 | 2.7 | Moderate |
| 30 | 2.6 | Moderate |
| 31 | 2.6 | Moderate |
Hazard calendar for Thành Phố Uông Bí
In December, Thành Phố Uông Bí sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Thành Phố Uông Bí sits in the Pacific typhoon belt; the season peaks July–October.
Thành Phố Uông Bí's monsoon runs May–September, when most of the year's rain falls.
Is December a good time to visit Thành Phố Uông Bí?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is one of the better times to visit Thành Phố Uông Bí for general sightseeing.
What to pack for Thành Phố Uông Bí in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Thành Phố Uông Bí sees daytime highs around 22°C and nights near 15°C. Little to plan around — just the basics. About 6 days see rain.
Sea temperature near Thành Phố Uông Bí in December
The nearest coast averages about 23°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 47 km away) is warmest in August at about 30°C and coldest in February near 20°C.
It's comfortable for a long swim from Feb 28 to Jan 27 — about 11 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 20 | 20 | 23 | 27 | 29 | 30 | 30 | 29 | 28 | 26 | 23 |
| Comfort | Refreshing | Cool | Refreshing | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 20 | Cool |
| Mar | 20 | Refreshing |
| Apr | 23 | Refreshing |
| May | 27 | Warm |
| Jun | 29 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Warm |
| Nov | 26 | Warm |
| Dec | 23 | Refreshing |
UV index in Thành Phố Uông Bí in December
Clear-sky midday UV in December 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 Thành Phố Uông Bí peaks around July 10 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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) | 7 | 7 | 8 | 7 | 10 | 12 | 12 | 8 | 9 | 9 | 6 | 6 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Very high | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 7 | High |
| Feb | 7 | Very high |
| Mar | 8 | Very high |
| Apr | 7 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 9 | Very high |
| Nov | 6 | High |
| Dec | 6 | High |
Air quality in Thành Phố Uông Bí in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Thành Phố Uông Bí is worst in December — around 92 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (July, 35 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) | 90 | 80 | 76 | 66 | 49 | 37 | 35 | 40 | 59 | 74 | 82 | 92 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Moderate | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 90 | Unhealthy |
| Feb | 80 | Unhealthy |
| Mar | 76 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 49 | Poor |
| Jun | 37 | Poor |
| Jul | 35 | Moderate |
| Aug | 40 | Poor |
| Sep | 59 | Unhealthy |
| Oct | 74 | Unhealthy |
| Nov | 82 | Unhealthy |
| Dec | 92 | Unhealthy |
Where is Thành Phố Uông Bí?
Thành Phố Uông Bí sits at 21.0°N, 106.8°E, 11 m above sea level, in Vietnam. The nearest listed city is Thị Trấn Mạo Khê, 19 km away.
Topography around Thành Phố Uông Bí
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Thành Phố Uông Bí.
Within 3 km, the terrain around Thành Phố Uông Bí has only modest variations in elevation — a maximum elevation change of 231 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,047 m; within 80 km, large variations in elevation — a maximum elevation change of 1,180 m.
The land around Thành Phố Uông Bí is covered by trees (41%) and artificial surfaces (24%) within 3 km, trees (55%) within 16 km, and trees (45%) and water (26%) 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 Thành Phố Uông Bí (21.0343°, 106.7705°, elevation 11 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).