Ðông Hà weather in January
In January, Ðông Hà sees average daytime highs of 23°C and overnight lows near 18°C, with 135 mm of rain across 18.2 wet days and about 11.1 hours of daylight. It is the 12th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 13% of the time in January, and the air most often feels muggy.
Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Ðông Hà's 7th-clearest and 6th-windiest month. For the whole year in context, see Ðông Hà's year-round climate.
- Daytime high
- 23°
- 12th warmest
- Overnight low
- 18°
- 1st coldest
- Rainfall
- 135 mm
- 18.2 wet days
- Daylight
- 11 h 06 min
- 6:28 AM – 5:34 PM
- Cloud cover
- 77%
- 7th clearest
- Wind
- 9 km/h
- 6th windiest
- Solar energy
- 3 kWh/m²
- Travel score
- 5.3
- out of 10
Ðông Hà is provincial city in Vietnam.
- Density
- 2,251/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 23°C through the month.
A typical January day in Ðông Hà reaches about 23°C in the afternoon and slips back to 18°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, January runs on par with 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) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 18 |
| 2 | 23 | 18 |
| 3 | 23 | 18 |
| 4 | 23 | 18 |
| 5 | 23 | 18 |
| 6 | 23 | 18 |
| 7 | 23 | 18 |
| 8 | 23 | 18 |
| 9 | 23 | 18 |
| 10 | 23 | 18 |
| 11 | 23 | 18 |
| 12 | 23 | 18 |
| 13 | 23 | 18 |
| 14 | 23 | 18 |
| 15 | 23 | 18 |
| 16 | 23 | 18 |
| 17 | 23 | 18 |
| 18 | 23 | 18 |
| 19 | 23 | 18 |
| 20 | 23 | 18 |
| 21 | 23 | 18 |
| 22 | 23 | 18 |
| 23 | 23 | 18 |
| 24 | 23 | 17 |
| 25 | 23 | 17 |
| 26 | 23 | 17 |
| 27 | 23 | 17 |
| 28 | 23 | 17 |
| 29 | 23 | 17 |
| 30 | 23 | 18 |
| 31 | 23 | 18 |
How January really feels in Ðông Hà
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.
Ðông Hà weather by month
How January compares with the rest of the year at a glance. January is the 12th-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 | 23° / 18° | 135 | 18.2 | 11.1 | 5.3 |
| Feb | 25° / 19° | 84 | 13.5 | 11.4 | 5.9 |
| Mar | 27° / 21° | 88 | 13.6 | 11.9 | 5.7 |
| Apr | 30° / 23° | 89 | 14.2 | 12.4 | 4.3 |
| May | 33° / 25° | 134 | 18.6 | 12.8 | 2.9 |
| Jun | 34° / 26° | 71 | 10.8 | 13 | 2.7 |
| Jul | 34° / 26° | 99 | 12.3 | 12.9 | 2.8 |
| Aug | 33° / 26° | 128 | 14.8 | 12.6 | 3.0 |
| Sep | 31° / 25° | 298 | 20.3 | 12.1 | 3.2 |
| Oct | 28° / 23° | 449 | 24.2 | 11.6 | 4.0 |
| Nov | 26° / 21° | 400 | 22.4 | 11.2 | 4.6 |
| Dec | 23° / 19° | 293 | 22.3 | 11 | 4.7 |
Cloud cover in January
The sky is clear or mostly clear about 13% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 10% of January, with mostly cloudy or overcast conditions the remaining 77%.
| 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 (%) | 20 | 20 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 26 | 26 | 27 |
| Cloudier (%) | 80 | 80 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 75 | 74 | 74 | 73 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 20 | 80 |
| 2 | 20 | 80 |
| 3 | 22 | 78 |
| 4 | 22 | 78 |
| 5 | 22 | 78 |
| 6 | 22 | 78 |
| 7 | 22 | 78 |
| 8 | 22 | 78 |
| 9 | 22 | 78 |
| 10 | 23 | 77 |
| 11 | 24 | 76 |
| 12 | 24 | 76 |
| 13 | 23 | 77 |
| 14 | 23 | 77 |
| 15 | 23 | 77 |
| 16 | 23 | 77 |
| 17 | 23 | 77 |
| 18 | 23 | 77 |
| 19 | 23 | 77 |
| 20 | 23 | 77 |
| 21 | 23 | 77 |
| 22 | 23 | 77 |
| 23 | 23 | 77 |
| 24 | 23 | 77 |
| 25 | 23 | 77 |
| 26 | 24 | 76 |
| 27 | 24 | 76 |
| 28 | 25 | 75 |
| 29 | 26 | 74 |
| 30 | 26 | 74 |
| 31 | 27 | 73 |
Chance of precipitation in January
Ðông Hà gets around 135 mm of rain over 18.2 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 59% and peaks near 65% on the wettest days. The odds ease 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 (%) | 65 | 64 | 64 | 63 | 62 | 62 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 54 |
| Rain chance (%) | |
|---|---|
| 1 | 65 |
| 2 | 64 |
| 3 | 64 |
| 4 | 63 |
| 5 | 62 |
| 6 | 62 |
| 7 | 61 |
| 8 | 60 |
| 9 | 60 |
| 10 | 60 |
| 11 | 59 |
| 12 | 59 |
| 13 | 59 |
| 14 | 59 |
| 15 | 59 |
| 16 | 59 |
| 17 | 59 |
| 18 | 59 |
| 19 | 59 |
| 20 | 59 |
| 21 | 59 |
| 22 | 59 |
| 23 | 58 |
| 24 | 58 |
| 25 | 58 |
| 26 | 57 |
| 27 | 57 |
| 28 | 56 |
| 29 | 56 |
| 30 | 55 |
| 31 | 54 |
Humidity in January
Most of January feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 54% 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 (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Comfortable (%) | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 |
| Humid (%) | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 34 | 35 | 36 | 36 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 33 |
| Muggy (%) | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 39 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 |
| Oppressive (%) | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 3 | 12 | 27 | 45 | 13 |
| 2 | 3 | 12 | 27 | 45 | 13 |
| 3 | 3 | 12 | 26 | 45 | 14 |
| 4 | 3 | 12 | 26 | 45 | 14 |
| 5 | 3 | 12 | 25 | 45 | 14 |
| 6 | 3 | 13 | 25 | 45 | 15 |
| 7 | 3 | 13 | 25 | 44 | 15 |
| 8 | 3 | 13 | 25 | 44 | 15 |
| 9 | 3 | 13 | 25 | 44 | 15 |
| 10 | 3 | 14 | 25 | 43 | 15 |
| 11 | 3 | 14 | 25 | 43 | 15 |
| 12 | 3 | 14 | 26 | 43 | 15 |
| 13 | 3 | 14 | 26 | 43 | 14 |
| 14 | 3 | 14 | 27 | 42 | 14 |
| 15 | 3 | 14 | 28 | 42 | 13 |
| 16 | 3 | 14 | 29 | 42 | 13 |
| 17 | 3 | 14 | 30 | 41 | 12 |
| 18 | 3 | 13 | 31 | 41 | 12 |
| 19 | 3 | 13 | 32 | 40 | 11 |
| 20 | 3 | 13 | 34 | 40 | 11 |
| 21 | 3 | 13 | 35 | 39 | 11 |
| 22 | 3 | 12 | 36 | 38 | 11 |
| 23 | 3 | 12 | 36 | 38 | 11 |
| 24 | 3 | 12 | 37 | 37 | 11 |
| 25 | 3 | 12 | 37 | 37 | 11 |
| 26 | 3 | 13 | 36 | 36 | 12 |
| 27 | 3 | 13 | 36 | 36 | 12 |
| 28 | 3 | 13 | 35 | 36 | 13 |
| 29 | 3 | 14 | 35 | 35 | 13 |
| 30 | 3 | 14 | 34 | 35 | 14 |
| 31 | 3 | 14 | 33 | 35 | 14 |
Wind in January
Winds average 9 km/h in January.
Across January, 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 January
Daylight runs from about 11 hours at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over January. Sunrise moves from 6:24 AM to 6:28 AM, and sunset from 5:25 PM to 5:42 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) | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.1 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 |
| Sunrise (AM) | 6:24 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 | 6:27 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 | 6:28 |
| Sunset (PM) | 5:25 | 5:26 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:29 | 5:30 | 5:30 | 5:31 | 5:31 | 5:32 | 5:33 | 5:33 | 5:34 | 5:34 | 5:35 | 5:36 | 5:36 | 5:37 | 5:37 | 5:38 | 5:38 | 5:39 | 5:40 | 5:40 | 5:41 | 5:41 | 5:42 | 5:42 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.0 | 6:24 | 5:25 |
| 2 | 11.0 | 6:25 | 5:26 |
| 3 | 11.0 | 6:25 | 5:26 |
| 4 | 11.0 | 6:25 | 5:27 |
| 5 | 11.0 | 6:26 | 5:27 |
| 6 | 11.0 | 6:26 | 5:28 |
| 7 | 11.0 | 6:26 | 5:29 |
| 8 | 11.0 | 6:26 | 5:29 |
| 9 | 11.0 | 6:27 | 5:30 |
| 10 | 11.1 | 6:27 | 5:30 |
| 11 | 11.1 | 6:27 | 5:31 |
| 12 | 11.1 | 6:27 | 5:31 |
| 13 | 11.1 | 6:28 | 5:32 |
| 14 | 11.1 | 6:28 | 5:33 |
| 15 | 11.1 | 6:28 | 5:33 |
| 16 | 11.1 | 6:28 | 5:34 |
| 17 | 11.1 | 6:28 | 5:34 |
| 18 | 11.1 | 6:28 | 5:35 |
| 19 | 11.1 | 6:28 | 5:36 |
| 20 | 11.1 | 6:28 | 5:36 |
| 21 | 11.1 | 6:28 | 5:37 |
| 22 | 11.1 | 6:28 | 5:37 |
| 23 | 11.2 | 6:28 | 5:38 |
| 24 | 11.2 | 6:28 | 5:38 |
| 25 | 11.2 | 6:28 | 5:39 |
| 26 | 11.2 | 6:28 | 5:40 |
| 27 | 11.2 | 6:28 | 5:40 |
| 28 | 11.2 | 6:28 | 5:41 |
| 29 | 11.2 | 6:28 | 5:41 |
| 30 | 11.2 | 6:28 | 5:42 |
| 31 | 11.2 | 6:28 | 5:42 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 3 kWh/m².
For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.79 kWh/m² in June across the year — January's 3 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) | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 | 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 | 2.8 | Moderate |
| 3 | 2.8 | Moderate |
| 4 | 2.8 | Moderate |
| 5 | 2.8 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.9 | Moderate |
| 9 | 2.9 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 3.0 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.0 | Moderate |
| 17 | 3.0 | Moderate |
| 18 | 3.0 | Moderate |
| 19 | 3.0 | Moderate |
| 20 | 3.0 | Moderate |
| 21 | 3.0 | Moderate |
| 22 | 3.0 | Moderate |
| 23 | 3.0 | Moderate |
| 24 | 3.1 | Moderate |
| 25 | 3.1 | Moderate |
| 26 | 3.1 | Moderate |
| 27 | 3.1 | Moderate |
| 28 | 3.2 | Moderate |
| 29 | 3.2 | Moderate |
| 30 | 3.3 | Moderate |
| 31 | 3.3 | Moderate |
Hazard calendar for Ðông Hà
In January, Ðông Hà sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ðông Hà sits in the Pacific typhoon belt; the season peaks July–October.
Ðông Hà's monsoon runs September–December, when most of the year's rain falls.
Is January a good time to visit Ðông Hà?
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 Ðông Hà for sightseeing.
What to pack for Ðông Hà in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Ðông Hà sees daytime highs around 23°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 18 days see rain.
Sea temperature near Ðông Hà in January
The nearest coast averages about 23°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 30 km away) is warmest in August at about 29°C and coldest in February near 22°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 23 | 22 | 23 | 25 | 28 | 29 | 29 | 29 | 29 | 28 | 26 | 24 |
| Comfort | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 23 | Refreshing |
| Feb | 22 | Refreshing |
| Mar | 23 | Refreshing |
| Apr | 25 | Warm |
| May | 28 | Warm |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Tropical |
| Nov | 26 | Warm |
| Dec | 24 | Warm |
UV index in Ðông Hà in January
Clear-sky midday UV in January 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 Ðông Hà peaks around August 13 at about 13 (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) | 9 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 12 | 10 | 8 | 6 |
| Level | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | High |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Very high |
| Mar | 9 | Very high |
| Apr | 10 | Very high |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 6 | High |
Air quality in Ðông Hà 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 Ðông Hà is worst in March — around 76 µg/m³ PM2.5 (unhealthy), about 5.1× the cleanest month (July, 15 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) | 21 | 27 | 76 | 66 | 26 | 17 | 15 | 16 | 19 | 21 | 18 | 21 |
| Level | Moderate | Moderate | Unhealthy | Unhealthy | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 21 | Moderate |
| Feb | 27 | Moderate |
| Mar | 76 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 26 | Moderate |
| Jun | 17 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 19 | Moderate |
| Oct | 21 | Moderate |
| Nov | 18 | Moderate |
| Dec | 21 | Moderate |
Where is Ðông Hà?
Ðông Hà sits at 16.8°N, 107.1°E, 21 m above sea level, in Vietnam. The nearest listed city is Cam Lộ, 11 km away.
Topography around Ðông Hà
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ðông Hà.
Within 3 km, the terrain around Ðông Hà has only modest variations in elevation — a maximum elevation change of 44 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 204 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,059 m.
The land around Ðông Hà is covered by artificial surfaces (38%), cropland (24%) and trees (21%) within 3 km, trees (52%) and cropland (22%) within 16 km, and trees (60%) and water (29%) 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 Ðông Hà (16.8163°, 107.1003°, elevation 21 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).