Thành Phố Uông Bí weather in April
In April, Thành Phố Uông Bí sees average daytime highs of 27°C and overnight lows near 22°C, with 75 mm of rain across 12 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.
Highs climb over the month, from about 25°C in the first days to 29°C by the end. The sky is clear or mostly clear about 11% 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 Thành Phố Uông Bí's 5th-clearest and 1st-windiest month. For the whole year in context, see Thành Phố Uông Bí's year-round climate.
- Daytime high
- 27°
- 7th warmest
- Overnight low
- 22°
- 6th coldest
- Rainfall
- 75 mm
- 12 wet days
- Daylight
- 12 h 30 min
- 5:39 AM – 6:08 PM
- Cloud cover
- 74%
- 5th clearest
- Wind
- 10 km/h
- 1st windiest
- Solar energy
- 4.36 kWh/m²
- Travel score
- 5.6
- 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 April
Highs climb over the month, from about 25°C in the first days to 29°C by the end.
A typical April day in Thành Phố Uông Bí reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°C. Set against its neighbours, April runs about 4°C warmer than March and about 3°C cooler than May.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 20 |
| 2 | 25 | 20 |
| 3 | 25 | 20 |
| 4 | 25 | 21 |
| 5 | 26 | 21 |
| 6 | 26 | 21 |
| 7 | 26 | 21 |
| 8 | 26 | 21 |
| 9 | 26 | 21 |
| 10 | 26 | 21 |
| 11 | 27 | 21 |
| 12 | 27 | 22 |
| 13 | 27 | 22 |
| 14 | 27 | 22 |
| 15 | 27 | 22 |
| 16 | 27 | 22 |
| 17 | 28 | 22 |
| 18 | 28 | 22 |
| 19 | 28 | 22 |
| 20 | 28 | 23 |
| 21 | 28 | 23 |
| 22 | 28 | 23 |
| 23 | 28 | 23 |
| 24 | 29 | 23 |
| 25 | 29 | 23 |
| 26 | 29 | 23 |
| 27 | 29 | 23 |
| 28 | 29 | 23 |
| 29 | 29 | 24 |
| 30 | 29 | 24 |
How April really feels in Thành Phố Uông Bí
Once humidity and wind are folded in, April averages 5 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Thành Phố Uông Bí weather by month
How April compares with the rest of the year at a glance. April is the 7th-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 | 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 April
The sky is clear or mostly clear about 11% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 76%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 18 | 19 | 20 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 23 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 29 |
| Cloudier (%) | 82 | 81 | 80 | 80 | 80 | 79 | 78 | 78 | 78 | 78 | 77 | 75 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 73 | 73 | 72 | 71 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 18 | 82 |
| 2 | 19 | 81 |
| 3 | 20 | 80 |
| 4 | 20 | 80 |
| 5 | 20 | 80 |
| 6 | 21 | 79 |
| 7 | 22 | 78 |
| 8 | 22 | 78 |
| 9 | 22 | 78 |
| 10 | 22 | 78 |
| 11 | 23 | 77 |
| 12 | 25 | 75 |
| 13 | 25 | 75 |
| 14 | 25 | 75 |
| 15 | 26 | 74 |
| 16 | 26 | 74 |
| 17 | 27 | 73 |
| 18 | 27 | 73 |
| 19 | 27 | 73 |
| 20 | 26 | 74 |
| 21 | 26 | 74 |
| 22 | 26 | 74 |
| 23 | 26 | 74 |
| 24 | 27 | 73 |
| 25 | 27 | 73 |
| 26 | 27 | 73 |
| 27 | 27 | 73 |
| 28 | 27 | 73 |
| 29 | 28 | 72 |
| 30 | 29 | 71 |
Chance of precipitation in April
Thành Phố Uông Bí gets around 75 mm of rain over 12 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 41% and peaks near 50% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 37 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 41 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 |
| Rain chance (%) | |
|---|---|
| 1 | 37 |
| 2 | 37 |
| 3 | 37 |
| 4 | 38 |
| 5 | 38 |
| 6 | 38 |
| 7 | 38 |
| 8 | 38 |
| 9 | 38 |
| 10 | 38 |
| 11 | 39 |
| 12 | 39 |
| 13 | 39 |
| 14 | 39 |
| 15 | 39 |
| 16 | 39 |
| 17 | 40 |
| 18 | 40 |
| 19 | 40 |
| 20 | 41 |
| 21 | 41 |
| 22 | 42 |
| 23 | 43 |
| 24 | 44 |
| 25 | 45 |
| 26 | 46 |
| 27 | 47 |
| 28 | 48 |
| 29 | 49 |
| 30 | 50 |
Humidity in April
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 45% of days. Sticky, muggy-or-worse air turns up on roughly 81% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 |
| Humid (%) | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 13 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 |
| Muggy (%) | 33 | 32 | 31 | 30 | 29 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 15 |
| Oppressive (%) | 35 | 36 | 38 | 39 | 41 | 42 | 44 | 45 | 46 | 47 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 47 | 46 | 45 | 44 | 43 | 41 | 40 |
| Miserable (%) | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 5 | 5 | 6 | 8 | 9 | 10 | 12 | 13 | 14 | 16 | 17 | 19 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 6 | 8 | 17 | 33 | 35 | 1 |
| 2 | 6 | 8 | 17 | 32 | 36 | 2 |
| 3 | 5 | 8 | 17 | 31 | 38 | 2 |
| 4 | 5 | 8 | 16 | 30 | 39 | 2 |
| 5 | 4 | 7 | 16 | 29 | 41 | 3 |
| 6 | 4 | 7 | 16 | 27 | 42 | 3 |
| 7 | 4 | 7 | 16 | 26 | 44 | 3 |
| 8 | 3 | 7 | 15 | 25 | 45 | 4 |
| 9 | 3 | 7 | 15 | 24 | 46 | 5 |
| 10 | 3 | 7 | 15 | 23 | 47 | 5 |
| 11 | 3 | 7 | 14 | 22 | 48 | 6 |
| 12 | 2 | 7 | 13 | 21 | 49 | 8 |
| 13 | 2 | 7 | 13 | 20 | 49 | 9 |
| 14 | 2 | 6 | 12 | 20 | 50 | 10 |
| 15 | 2 | 6 | 11 | 19 | 50 | 12 |
| 16 | 1 | 6 | 11 | 19 | 50 | 13 |
| 17 | 1 | 5 | 11 | 19 | 50 | 14 |
| 18 | 1 | 5 | 10 | 18 | 50 | 16 |
| 19 | 1 | 5 | 10 | 18 | 49 | 17 |
| 20 | 1 | 4 | 9 | 18 | 49 | 19 |
| 21 | 1 | 4 | 9 | 18 | 49 | 20 |
| 22 | 1 | 3 | 8 | 18 | 48 | 22 |
| 23 | 0 | 3 | 8 | 17 | 48 | 24 |
| 24 | 0 | 3 | 7 | 17 | 47 | 26 |
| 25 | 0 | 2 | 7 | 16 | 46 | 28 |
| 26 | 0 | 2 | 6 | 16 | 45 | 30 |
| 27 | 0 | 2 | 6 | 16 | 44 | 32 |
| 28 | 0 | 2 | 6 | 15 | 43 | 34 |
| 29 | 0 | 2 | 6 | 15 | 41 | 36 |
| 30 | 0 | 1 | 5 | 15 | 40 | 38 |
Wind in April
Winds average 10 km/h in April, the windiest month of the year.
Across April, daily wind ranges from about 9 km/h on the calmest days to 10 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 9 | 9 | 9 | 9 | 9 | 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 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
Sunrise & sunset in April
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 5:52 AM to 5:28 AM, and sunset from 6:03 PM to 6:13 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 | 12.3 | 12.3 | 12.4 | 12.4 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 | 12.7 |
| Sunrise (AM) | 5:52 | 5:51 | 5:50 | 5:49 | 5:48 | 5:48 | 5:47 | 5:46 | 5:45 | 5:44 | 5:43 | 5:42 | 5:41 | 5:40 | 5:40 | 5:39 | 5:38 | 5:37 | 5:36 | 5:35 | 5:35 | 5:34 | 5:33 | 5:32 | 5:31 | 5:31 | 5:30 | 5:29 | 5:29 | 5:28 |
| Sunset (PM) | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:07 | 6:08 | 6:08 | 6:08 | 6:09 | 6:09 | 6:09 | 6:10 | 6:10 | 6:10 | 6:11 | 6:11 | 6:11 | 6:12 | 6:12 | 6:13 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 5:52 | 6:03 |
| 2 | 12.2 | 5:51 | 6:03 |
| 3 | 12.2 | 5:50 | 6:04 |
| 4 | 12.2 | 5:49 | 6:04 |
| 5 | 12.3 | 5:48 | 6:04 |
| 6 | 12.3 | 5:48 | 6:04 |
| 7 | 12.3 | 5:47 | 6:05 |
| 8 | 12.3 | 5:46 | 6:05 |
| 9 | 12.3 | 5:45 | 6:05 |
| 10 | 12.4 | 5:44 | 6:06 |
| 11 | 12.4 | 5:43 | 6:06 |
| 12 | 12.4 | 5:42 | 6:06 |
| 13 | 12.4 | 5:41 | 6:07 |
| 14 | 12.4 | 5:40 | 6:07 |
| 15 | 12.5 | 5:40 | 6:07 |
| 16 | 12.5 | 5:39 | 6:08 |
| 17 | 12.5 | 5:38 | 6:08 |
| 18 | 12.5 | 5:37 | 6:08 |
| 19 | 12.5 | 5:36 | 6:09 |
| 20 | 12.6 | 5:35 | 6:09 |
| 21 | 12.6 | 5:35 | 6:09 |
| 22 | 12.6 | 5:34 | 6:10 |
| 23 | 12.6 | 5:33 | 6:10 |
| 24 | 12.6 | 5:32 | 6:10 |
| 25 | 12.7 | 5:31 | 6:11 |
| 26 | 12.7 | 5:31 | 6:11 |
| 27 | 12.7 | 5:30 | 6:11 |
| 28 | 12.7 | 5:29 | 6:12 |
| 29 | 12.7 | 5:29 | 6:12 |
| 30 | 12.7 | 5:28 | 6:13 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.36 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 — April's 4.36 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.6 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.6 | Moderate |
| 2 | 3.7 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.8 | Moderate |
| 5 | 3.8 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 3.9 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.2 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.4 | Bright |
| 17 | 4.5 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.6 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.7 | Bright |
| 22 | 4.7 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
Hazard calendar for Thành Phố Uông Bí
In April, 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 April a good time to visit Thành Phố Uông Bí?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a reasonable time to visit Thành Phố Uông Bí for sightseeing.
What to pack for Thành Phố Uông Bí in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Thành Phố Uông Bí sees daytime highs around 27°C and nights near 22°C. Pack light clothes. Worth having: rain gear. About 12 days see rain.
Sea temperature near Thành Phố Uông Bí in April
The nearest coast averages about 23°C in April — 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 April
Clear-sky midday UV in April peaks around 7 — 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 April
Average fine-particle pollution (PM2.5) through the year — so you can see where April 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).