Long Bien weather in March
In March, Long Bien sees average daytime highs of 24°C and overnight lows near 19°C, with 50 mm of rain across 10 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 23°C in the first days to 26°C by the end. The sky is clear or mostly clear about 9% of the time in March, and the air most often feels muggy.
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 Long Bien's 9th-clearest and 2nd-windiest month. For the whole year in context, see Long Bien's year-round climate.
- Daytime high
- 24°
- 9th warmest
- Overnight low
- 19°
- 4th coldest
- Rainfall
- 50 mm
- 10 wet days
- Daylight
- 11 h 54 min
- 6:11 AM – 6:02 PM
- Cloud cover
- 80%
- 9th clearest
- Wind
- 9 km/h
- 2nd windiest
- Solar energy
- 2.9 kWh/m²
- Travel score
- 6.5
- out of 10
Temperature in March
Highs climb over the month, from about 23°C in the first days to 26°C by the end.
A typical March day in Long Bien reaches about 24°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, March runs about 3°C warmer than February and about 4°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) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 17 |
| 2 | 23 | 17 |
| 3 | 23 | 17 |
| 4 | 23 | 17 |
| 5 | 23 | 18 |
| 6 | 23 | 18 |
| 7 | 23 | 18 |
| 8 | 24 | 18 |
| 9 | 24 | 18 |
| 10 | 24 | 18 |
| 11 | 24 | 18 |
| 12 | 24 | 18 |
| 13 | 24 | 18 |
| 14 | 24 | 18 |
| 15 | 24 | 19 |
| 16 | 24 | 19 |
| 17 | 24 | 19 |
| 18 | 24 | 19 |
| 19 | 25 | 19 |
| 20 | 25 | 19 |
| 21 | 25 | 19 |
| 22 | 25 | 19 |
| 23 | 25 | 19 |
| 24 | 25 | 20 |
| 25 | 25 | 20 |
| 26 | 25 | 20 |
| 27 | 25 | 20 |
| 28 | 26 | 20 |
| 29 | 26 | 20 |
| 30 | 26 | 20 |
| 31 | 26 | 20 |
How March really feels in Long Bien
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.
Long Bien weather by month
How March compares with the rest of the year at a glance. March is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 20° / 15° | 37 | 7.5 | 10.9 | 6.3 |
| Feb | 22° / 16° | 25 | 6.8 | 11.3 | 6.6 |
| Mar | 24° / 19° | 50 | 10 | 11.9 | 6.5 |
| Apr | 28° / 22° | 87 | 10.9 | 12.5 | 5.3 |
| May | 32° / 25° | 232 | 18.2 | 13 | 3.3 |
| Jun | 33° / 27° | 242 | 19.1 | 13.3 | 2.4 |
| Jul | 33° / 27° | 280 | 21.4 | 13.2 | 2.3 |
| Aug | 32° / 26° | 350 | 24.5 | 12.7 | 2.4 |
| Sep | 32° / 25° | 248 | 19.7 | 12.1 | 3.2 |
| Oct | 29° / 23° | 125 | 12.5 | 11.5 | 5.1 |
| Nov | 26° / 19° | 59 | 7.2 | 11 | 7.0 |
| Dec | 22° / 16° | 31 | 6 | 10.7 | 7.1 |
Cloud cover in March
The sky is clear or mostly clear about 9% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 9% of March, with mostly cloudy or overcast conditions the remaining 82%.
| 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 (%) | 19 | 21 | 20 | 20 | 19 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 |
| Cloudier (%) | 81 | 79 | 80 | 80 | 81 | 81 | 80 | 80 | 81 | 81 | 81 | 81 | 83 | 84 | 84 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 82 | 82 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 19 | 81 |
| 2 | 21 | 79 |
| 3 | 20 | 80 |
| 4 | 20 | 80 |
| 5 | 19 | 81 |
| 6 | 19 | 81 |
| 7 | 20 | 80 |
| 8 | 20 | 80 |
| 9 | 19 | 81 |
| 10 | 19 | 81 |
| 11 | 19 | 81 |
| 12 | 19 | 81 |
| 13 | 17 | 83 |
| 14 | 16 | 84 |
| 15 | 16 | 84 |
| 16 | 17 | 83 |
| 17 | 17 | 83 |
| 18 | 17 | 83 |
| 19 | 17 | 83 |
| 20 | 17 | 83 |
| 21 | 17 | 83 |
| 22 | 17 | 83 |
| 23 | 17 | 83 |
| 24 | 17 | 83 |
| 25 | 17 | 83 |
| 26 | 17 | 83 |
| 27 | 18 | 82 |
| 28 | 18 | 82 |
| 29 | 18 | 82 |
| 30 | 18 | 82 |
| 31 | 18 | 82 |
Chance of precipitation in March
Long Bien gets around 50 mm of rain over 10 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 32% and peaks near 36% 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 (%) | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 |
| Rain chance (%) | |
|---|---|
| 1 | 28 |
| 2 | 28 |
| 3 | 28 |
| 4 | 28 |
| 5 | 28 |
| 6 | 28 |
| 7 | 29 |
| 8 | 29 |
| 9 | 29 |
| 10 | 30 |
| 11 | 31 |
| 12 | 31 |
| 13 | 32 |
| 14 | 32 |
| 15 | 33 |
| 16 | 33 |
| 17 | 34 |
| 18 | 34 |
| 19 | 34 |
| 20 | 34 |
| 21 | 34 |
| 22 | 34 |
| 23 | 35 |
| 24 | 35 |
| 25 | 35 |
| 26 | 35 |
| 27 | 35 |
| 28 | 36 |
| 29 | 36 |
| 30 | 36 |
| 31 | 36 |
Humidity in March
Most of March feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 51% 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 (%) | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 |
| Comfortable (%) | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 10 |
| Humid (%) | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 |
| Muggy (%) | 23 | 23 | 24 | 24 | 25 | 26 | 27 | 28 | 28 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 |
| Oppressive (%) | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 16 | 16 | 17 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 30 | 31 | 32 | 32 | 33 | 34 | 35 |
| Miserable (%) | 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 | 2 | 2 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 25 | 20 | 20 | 23 | 13 | 0 |
| 2 | 24 | 20 | 20 | 23 | 13 | 0 |
| 3 | 23 | 20 | 20 | 24 | 13 | 0 |
| 4 | 22 | 20 | 20 | 24 | 13 | 0 |
| 5 | 22 | 19 | 21 | 25 | 13 | 0 |
| 6 | 21 | 19 | 21 | 26 | 14 | 0 |
| 7 | 20 | 18 | 21 | 27 | 14 | 0 |
| 8 | 19 | 18 | 21 | 28 | 14 | 0 |
| 9 | 18 | 17 | 22 | 28 | 15 | 0 |
| 10 | 17 | 17 | 22 | 29 | 16 | 0 |
| 11 | 16 | 16 | 22 | 30 | 16 | 0 |
| 12 | 15 | 15 | 22 | 30 | 17 | 0 |
| 13 | 14 | 15 | 21 | 31 | 19 | 0 |
| 14 | 13 | 14 | 21 | 31 | 20 | 0 |
| 15 | 13 | 14 | 21 | 31 | 21 | 0 |
| 16 | 12 | 14 | 21 | 31 | 22 | 0 |
| 17 | 11 | 14 | 20 | 31 | 23 | 0 |
| 18 | 11 | 13 | 20 | 31 | 24 | 0 |
| 19 | 10 | 13 | 20 | 31 | 25 | 0 |
| 20 | 10 | 13 | 20 | 31 | 26 | 0 |
| 21 | 9 | 13 | 20 | 30 | 27 | 0 |
| 22 | 9 | 13 | 19 | 30 | 28 | 0 |
| 23 | 9 | 13 | 19 | 30 | 29 | 0 |
| 24 | 8 | 13 | 19 | 30 | 30 | 0 |
| 25 | 8 | 13 | 18 | 30 | 30 | 1 |
| 26 | 8 | 12 | 18 | 30 | 31 | 1 |
| 27 | 8 | 12 | 18 | 30 | 32 | 1 |
| 28 | 7 | 12 | 18 | 30 | 32 | 1 |
| 29 | 7 | 11 | 18 | 30 | 33 | 2 |
| 30 | 7 | 11 | 17 | 29 | 34 | 2 |
| 31 | 6 | 10 | 17 | 29 | 35 | 3 |
Wind in March
Winds average 9 km/h in March.
Across March, daily wind ranges from about 9 km/h on the calmest days to 9 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 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 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | 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 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 5:57 AM, and sunset from 5:56 PM to 6:06 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 | 11.6 | 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 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.2 |
| Sunrise (AM) | 6:23 | 6:22 | 6:22 | 6:21 | 6:20 | 6:19 | 6:18 | 6:18 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 | 6:11 | 6:11 | 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 | 5:58 | 5:57 |
| Sunset (PM) | 5:56 | 5:56 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 | 6:03 | 6:03 | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:23 | 5:56 |
| 2 | 11.6 | 6:22 | 5:56 |
| 3 | 11.6 | 6:22 | 5:57 |
| 4 | 11.6 | 6:21 | 5:57 |
| 5 | 11.6 | 6:20 | 5:58 |
| 6 | 11.6 | 6:19 | 5:58 |
| 7 | 11.7 | 6:18 | 5:58 |
| 8 | 11.7 | 6:18 | 5:59 |
| 9 | 11.7 | 6:17 | 5:59 |
| 10 | 11.7 | 6:16 | 6:00 |
| 11 | 11.7 | 6:15 | 6:00 |
| 12 | 11.8 | 6:14 | 6:00 |
| 13 | 11.8 | 6:13 | 6:01 |
| 14 | 11.8 | 6:12 | 6:01 |
| 15 | 11.8 | 6:11 | 6:01 |
| 16 | 11.9 | 6:11 | 6:02 |
| 17 | 11.9 | 6:10 | 6:02 |
| 18 | 11.9 | 6:09 | 6:02 |
| 19 | 11.9 | 6:08 | 6:03 |
| 20 | 11.9 | 6:07 | 6:03 |
| 21 | 12.0 | 6:06 | 6:03 |
| 22 | 12.0 | 6:05 | 6:03 |
| 23 | 12.0 | 6:04 | 6:04 |
| 24 | 12.0 | 6:03 | 6:04 |
| 25 | 12.0 | 6:02 | 6:04 |
| 26 | 12.1 | 6:01 | 6:05 |
| 27 | 12.1 | 6:00 | 6:05 |
| 28 | 12.1 | 5:59 | 6:05 |
| 29 | 12.1 | 5:58 | 6:06 |
| 30 | 12.1 | 5:58 | 6:06 |
| 31 | 12.2 | 5:57 | 6:06 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 2.9 kWh/m².
For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 4.92 kWh/m² in June across the year — March's 2.9 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) | 2.7 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 |
| 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 | 2.7 | Moderate |
| 2 | 2.7 | Moderate |
| 3 | 2.7 | Moderate |
| 4 | 2.7 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.8 | Moderate |
| 7 | 2.8 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.8 | Moderate |
| 11 | 2.8 | Moderate |
| 12 | 2.8 | Moderate |
| 13 | 2.8 | Moderate |
| 14 | 2.8 | Moderate |
| 15 | 2.8 | Moderate |
| 16 | 2.8 | Moderate |
| 17 | 2.8 | Moderate |
| 18 | 2.9 | Moderate |
| 19 | 2.9 | Moderate |
| 20 | 2.9 | Moderate |
| 21 | 2.9 | Moderate |
| 22 | 2.9 | Moderate |
| 23 | 3.0 | Moderate |
| 24 | 3.0 | Moderate |
| 25 | 3.0 | Moderate |
| 26 | 3.1 | Moderate |
| 27 | 3.1 | Moderate |
| 28 | 3.1 | Moderate |
| 29 | 3.2 | Moderate |
| 30 | 3.2 | Moderate |
| 31 | 3.3 | Moderate |
Hazard calendar for Long Bien
None of Long Bien's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Long Bien's monsoon runs May–September, when most of the year's rain falls.
Is March a good time to visit Long Bien?
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 Long Bien for sightseeing.
What to pack for Long Bien in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Long Bien sees daytime highs around 24°C and nights near 19°C. Worth packing: light clothes and rain gear. About 10 days see rain.
UV index in Long Bien in March
Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Long Bien peaks around June 20 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 | 7 | 9 | 6 | 8 | 11 | 10 | 9 | 8 | 8 | 6 | 6 |
| Level | High | Very high | Very high | High | Very high | Extreme | Extreme | Very high | Very high | Very high | High | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 6 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 6 | High |
Air quality in Long Bien 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 Long Bien is worst in December — around 171 µg/m³ PM2.5 (very unhealthy), about 3.4× the cleanest month (July, 50 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) | 161 | 136 | 122 | 106 | 76 | 59 | 50 | 68 | 96 | 125 | 152 | 171 |
| Level | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Unhealthy | Unhealthy | Unhealthy | Very unhealthy | Very unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 161 | Very unhealthy |
| Feb | 136 | Unhealthy |
| Mar | 122 | Unhealthy |
| Apr | 106 | Unhealthy |
| May | 76 | Unhealthy |
| Jun | 59 | Unhealthy |
| Jul | 50 | Poor |
| Aug | 68 | Unhealthy |
| Sep | 96 | Unhealthy |
| Oct | 125 | Unhealthy |
| Nov | 152 | Very unhealthy |
| Dec | 171 | Very unhealthy |
Where is Long Bien?
Long Bien sits at 21.0°N, 105.9°E, 10 m above sea level, in Vietnam. The nearest listed city is Vĩnh Tuy, 4.0 km away.
Topography around Long Bien
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Long Bien.
Within 3 km, the terrain around Long Bien has only modest variations in elevation — a maximum elevation change of 20 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 121 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,694 m.
The land around Long Bien is covered by artificial surfaces (53%) and trees (28%) within 3 km, artificial surfaces (37%), trees (26%) and cropland (24%) within 16 km, and trees (51%) and cropland (34%) 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 Long Bien (21.0333°, 105.9°, elevation 10 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).