Thành Phố Uông Bí weather in May
In May, Thành Phố Uông Bí sees average daytime highs of 31°C and overnight lows near 25°C, with 241 mm of rain across 19.8 wet days and about 13 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.
Highs climb over the month, from about 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 11% of the time in May, and the air most often feels miserable.
Daylight stretches from about 12 h 48 min at the start of May to 13 h 12 min by month's end. Set against the rest of the year, May is Thành Phố Uông Bí's 6th-clearest and 2nd-windiest month. For the whole year in context, see Thành Phố Uông Bí's year-round climate.
- Daytime high
- 31°
- 5th warmest
- Overnight low
- 25°
- 9th coldest
- Rainfall
- 241 mm
- 19.8 wet days
- Daylight
- 13 hours
- 5:19 AM – 6:19 PM
- Cloud cover
- 76%
- 6th clearest
- Wind
- 10 km/h
- 2nd windiest
- Solar energy
- 4.95 kWh/m²
- Travel score
- 3.6
- 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 May
Highs climb over the month, from about 30°C in the first days to 32°C by the end.
A typical May day in Thành Phố Uông Bí reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, May runs about 3°C warmer than April and about 2°C cooler than June.
| 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) | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 32 | 32 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 24 |
| 2 | 29 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 25 |
| 11 | 30 | 25 |
| 12 | 30 | 25 |
| 13 | 30 | 25 |
| 14 | 31 | 25 |
| 15 | 31 | 25 |
| 16 | 31 | 25 |
| 17 | 31 | 25 |
| 18 | 31 | 25 |
| 19 | 31 | 25 |
| 20 | 31 | 25 |
| 21 | 31 | 25 |
| 22 | 31 | 25 |
| 23 | 31 | 25 |
| 24 | 31 | 25 |
| 25 | 31 | 25 |
| 26 | 31 | 26 |
| 27 | 31 | 26 |
| 28 | 32 | 26 |
| 29 | 32 | 26 |
| 30 | 32 | 26 |
| 31 | 32 | 26 |
How May really feels in Thành Phố Uông Bí
Once humidity and wind are folded in, May averages 31 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 May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Thành Phố Uông Bí weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 5th-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 May
The sky is clear or mostly clear about 11% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 74%.
| 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 (%) | 29 | 29 | 30 | 31 | 32 | 32 | 32 | 32 | 31 | 32 | 32 | 31 | 30 | 30 | 28 | 27 | 26 | 26 | 24 | 24 | 22 | 21 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 16 |
| Cloudier (%) | 71 | 71 | 70 | 69 | 68 | 68 | 68 | 68 | 69 | 68 | 68 | 69 | 70 | 70 | 72 | 73 | 74 | 74 | 76 | 76 | 78 | 79 | 79 | 80 | 80 | 81 | 82 | 82 | 83 | 83 | 84 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 29 | 71 |
| 2 | 29 | 71 |
| 3 | 30 | 70 |
| 4 | 31 | 69 |
| 5 | 32 | 68 |
| 6 | 32 | 68 |
| 7 | 32 | 68 |
| 8 | 32 | 68 |
| 9 | 31 | 69 |
| 10 | 32 | 68 |
| 11 | 32 | 68 |
| 12 | 31 | 69 |
| 13 | 30 | 70 |
| 14 | 30 | 70 |
| 15 | 28 | 72 |
| 16 | 27 | 73 |
| 17 | 26 | 74 |
| 18 | 26 | 74 |
| 19 | 24 | 76 |
| 20 | 24 | 76 |
| 21 | 22 | 78 |
| 22 | 21 | 79 |
| 23 | 21 | 79 |
| 24 | 20 | 80 |
| 25 | 20 | 80 |
| 26 | 19 | 81 |
| 27 | 18 | 82 |
| 28 | 18 | 82 |
| 29 | 17 | 83 |
| 30 | 17 | 83 |
| 31 | 16 | 84 |
Chance of precipitation in May
Thành Phố Uông Bí gets around 241 mm of rain over 19.8 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 63% and peaks near 72% 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 (%) | 51 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 59 | 60 | 61 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 66 | 66 | 67 | 68 | 68 | 69 | 70 | 70 | 71 | 71 | 72 | 72 |
| Rain chance (%) | |
|---|---|
| 1 | 51 |
| 2 | 53 |
| 3 | 54 |
| 4 | 55 |
| 5 | 56 |
| 6 | 57 |
| 7 | 58 |
| 8 | 59 |
| 9 | 59 |
| 10 | 60 |
| 11 | 61 |
| 12 | 61 |
| 13 | 62 |
| 14 | 62 |
| 15 | 63 |
| 16 | 63 |
| 17 | 64 |
| 18 | 64 |
| 19 | 65 |
| 20 | 66 |
| 21 | 66 |
| 22 | 67 |
| 23 | 68 |
| 24 | 68 |
| 25 | 69 |
| 26 | 70 |
| 27 | 70 |
| 28 | 71 |
| 29 | 71 |
| 30 | 72 |
| 31 | 72 |
Humidity in May
Most of May feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the miserable band about 63% of days. Sticky, muggy-or-worse air turns up on roughly 98% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Muggy (%) | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 4 | 4 |
| Oppressive (%) | 39 | 38 | 36 | 35 | 34 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 16 | 15 | 14 |
| Miserable (%) | 41 | 43 | 45 | 47 | 49 | 52 | 53 | 55 | 57 | 58 | 59 | 60 | 61 | 62 | 62 | 62 | 64 | 65 | 67 | 67 | 69 | 70 | 70 | 72 | 73 | 74 | 75 | 77 | 79 | 81 | 82 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 1 | 5 | 14 | 39 | 41 |
| 2 | 1 | 5 | 14 | 38 | 43 |
| 3 | 1 | 4 | 14 | 36 | 45 |
| 4 | 1 | 4 | 13 | 35 | 47 |
| 5 | 1 | 3 | 13 | 34 | 49 |
| 6 | 1 | 3 | 12 | 32 | 52 |
| 7 | 1 | 3 | 12 | 31 | 53 |
| 8 | 1 | 2 | 12 | 30 | 55 |
| 9 | 1 | 2 | 11 | 29 | 57 |
| 10 | 1 | 2 | 11 | 28 | 58 |
| 11 | 1 | 2 | 11 | 27 | 59 |
| 12 | 1 | 2 | 11 | 26 | 60 |
| 13 | 1 | 2 | 10 | 26 | 61 |
| 14 | 1 | 2 | 10 | 25 | 62 |
| 15 | 1 | 2 | 10 | 25 | 62 |
| 16 | 1 | 2 | 10 | 25 | 62 |
| 17 | 1 | 2 | 9 | 24 | 64 |
| 18 | 0 | 2 | 9 | 24 | 65 |
| 19 | 0 | 1 | 9 | 23 | 67 |
| 20 | 0 | 1 | 9 | 23 | 67 |
| 21 | 0 | 1 | 8 | 22 | 69 |
| 22 | 0 | 1 | 8 | 21 | 70 |
| 23 | 0 | 1 | 8 | 21 | 70 |
| 24 | 0 | 1 | 7 | 20 | 72 |
| 25 | 0 | 1 | 7 | 19 | 73 |
| 26 | 0 | 1 | 6 | 19 | 74 |
| 27 | 0 | 1 | 6 | 18 | 75 |
| 28 | 0 | 1 | 5 | 17 | 77 |
| 29 | 0 | 0 | 5 | 16 | 79 |
| 30 | 0 | 0 | 4 | 15 | 81 |
| 31 | 0 | 0 | 4 | 14 | 82 |
Wind in May
Winds average 10 km/h in May.
Across May, 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | 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 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in May
Daylight runs from about 12 h 48 min at the start of May to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over May. Sunrise moves from 5:27 AM to 5:15 AM, and sunset from 6:13 PM to 6:26 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) | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 |
| Sunrise (AM) | 5:27 | 5:27 | 5:26 | 5:25 | 5:25 | 5:24 | 5:24 | 5:23 | 5:23 | 5:22 | 5:21 | 5:21 | 5:21 | 5:20 | 5:20 | 5:19 | 5:19 | 5:18 | 5:18 | 5:18 | 5:17 | 5:17 | 5:17 | 5:17 | 5:16 | 5:16 | 5:16 | 5:16 | 5:15 | 5:15 | 5:15 |
| Sunset (PM) | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:26 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.8 | 5:27 | 6:13 |
| 2 | 12.8 | 5:27 | 6:13 |
| 3 | 12.8 | 5:26 | 6:14 |
| 4 | 12.8 | 5:25 | 6:14 |
| 5 | 12.8 | 5:25 | 6:15 |
| 6 | 12.8 | 5:24 | 6:15 |
| 7 | 12.9 | 5:24 | 6:15 |
| 8 | 12.9 | 5:23 | 6:16 |
| 9 | 12.9 | 5:23 | 6:16 |
| 10 | 12.9 | 5:22 | 6:17 |
| 11 | 12.9 | 5:21 | 6:17 |
| 12 | 12.9 | 5:21 | 6:17 |
| 13 | 13.0 | 5:21 | 6:18 |
| 14 | 13.0 | 5:20 | 6:18 |
| 15 | 13.0 | 5:20 | 6:19 |
| 16 | 13.0 | 5:19 | 6:19 |
| 17 | 13.0 | 5:19 | 6:20 |
| 18 | 13.0 | 5:18 | 6:20 |
| 19 | 13.0 | 5:18 | 6:20 |
| 20 | 13.1 | 5:18 | 6:21 |
| 21 | 13.1 | 5:17 | 6:21 |
| 22 | 13.1 | 5:17 | 6:22 |
| 23 | 13.1 | 5:17 | 6:22 |
| 24 | 13.1 | 5:17 | 6:23 |
| 25 | 13.1 | 5:16 | 6:23 |
| 26 | 13.1 | 5:16 | 6:23 |
| 27 | 13.1 | 5:16 | 6:24 |
| 28 | 13.1 | 5:16 | 6:24 |
| 29 | 13.2 | 5:15 | 6:25 |
| 30 | 13.2 | 5:15 | 6:25 |
| 31 | 13.2 | 5:15 | 6:26 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 4.95 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 — May's 4.95 kWh/m² sits near the top of that range.
| 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) | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | 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 | 4.9 | Bright |
| 2 | 4.9 | Bright |
| 3 | 5.0 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.0 | Bright |
| 15 | 5.0 | Bright |
| 16 | 5.0 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Thành Phố Uông Bí
In May, Thành Phố Uông Bí sits inside its pacific typhoon and monsoon 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 May a good time to visit Thành Phố Uông Bí?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a weaker month for outdoor sightseeing in Thành Phố Uông Bí.
What to pack for Thành Phố Uông Bí in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Thành Phố Uông Bí sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.
Sea temperature near Thành Phố Uông Bí in May
The nearest coast averages about 27°C in May — 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 May
Clear-sky midday UV in May 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 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 May
Average fine-particle pollution (PM2.5) through the year — so you can see where May 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).