Cái Đôi Vàm weather in January
In January, Cái Đôi Vàm sees average daytime highs of 28°C and overnight lows near 25°C, with 31 mm of rain across 5.2 wet days and about 11.5 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 23% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 11 h 30 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is Cái Đôi Vàm's 4th-clearest and 2nd-windiest month. For the whole year in context, see Cái Đôi Vàm's year-round climate.
- Daytime high
- 28°
- 11th warmest
- Overnight low
- 25°
- 1st coldest
- Rainfall
- 31 mm
- 5.2 wet days
- Daylight
- 11 h 30 min
- 6:24 AM – 5:56 PM
- Cloud cover
- 64%
- 4th clearest
- Wind
- 18 km/h
- 2nd windiest
- Solar energy
- 5.19 kWh/m²
- Travel score
- 6.5
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 28°C through the month.
A typical January day in Cái Đôi Vàm reaches about 28°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, January runs on par with December and on par with 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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 25 |
| 2 | 28 | 25 |
| 3 | 28 | 25 |
| 4 | 28 | 25 |
| 5 | 28 | 25 |
| 6 | 28 | 25 |
| 7 | 28 | 25 |
| 8 | 28 | 25 |
| 9 | 28 | 25 |
| 10 | 28 | 25 |
| 11 | 28 | 25 |
| 12 | 28 | 25 |
| 13 | 28 | 25 |
| 14 | 28 | 25 |
| 15 | 28 | 25 |
| 16 | 28 | 25 |
| 17 | 28 | 25 |
| 18 | 28 | 25 |
| 19 | 28 | 25 |
| 20 | 28 | 25 |
| 21 | 28 | 25 |
| 22 | 28 | 25 |
| 23 | 28 | 25 |
| 24 | 28 | 25 |
| 25 | 28 | 25 |
| 26 | 28 | 25 |
| 27 | 28 | 25 |
| 28 | 28 | 25 |
| 29 | 28 | 25 |
| 30 | 28 | 25 |
| 31 | 28 | 25 |
How January really feels in Cái Đôi Vàm
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.
Cái Đôi Vàm weather by month
How January compares with the rest of the year at a glance. January is the 11th-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 | 28° / 25° | 31 | 5.2 | 11.5 | 6.5 |
| Feb | 29° / 25° | 13 | 2.4 | 11.7 | 6.6 |
| Mar | 30° / 26° | 37 | 6 | 11.9 | 5.7 |
| Apr | 30° / 27° | 85 | 13.2 | 12.2 | 4.5 |
| May | 30° / 27° | 213 | 25.2 | 12.4 | 3.1 |
| Jun | 29° / 27° | 259 | 26.5 | 12.5 | 3.1 |
| Jul | 29° / 26° | 281 | 28.2 | 12.5 | 3.1 |
| Aug | 29° / 26° | 268 | 27.6 | 12.3 | 3.2 |
| Sep | 28° / 26° | 309 | 27.1 | 12.1 | 3.2 |
| Oct | 28° / 26° | 355 | 29 | 11.8 | 3.2 |
| Nov | 29° / 26° | 206 | 22.2 | 11.6 | 3.9 |
| Dec | 28° / 25° | 101 | 12.4 | 11.5 | 5.4 |
Cloud cover in January
The sky is clear or mostly clear about 23% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 59%.
| 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 (%) | 34 | 34 | 35 | 36 | 37 | 38 | 38 | 39 | 40 | 39 | 39 | 40 | 40 | 40 | 41 | 42 | 41 | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 |
| Cloudier (%) | 66 | 66 | 65 | 64 | 63 | 62 | 62 | 61 | 60 | 61 | 61 | 60 | 60 | 60 | 59 | 58 | 59 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 34 | 66 |
| 2 | 34 | 66 |
| 3 | 35 | 65 |
| 4 | 36 | 64 |
| 5 | 37 | 63 |
| 6 | 38 | 62 |
| 7 | 38 | 62 |
| 8 | 39 | 61 |
| 9 | 40 | 60 |
| 10 | 39 | 61 |
| 11 | 39 | 61 |
| 12 | 40 | 60 |
| 13 | 40 | 60 |
| 14 | 40 | 60 |
| 15 | 41 | 59 |
| 16 | 42 | 58 |
| 17 | 41 | 59 |
| 18 | 42 | 58 |
| 19 | 43 | 57 |
| 20 | 43 | 57 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 44 | 56 |
| 24 | 44 | 56 |
| 25 | 44 | 56 |
| 26 | 45 | 55 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 45 | 55 |
| 31 | 45 | 55 |
Chance of precipitation in January
Cái Đôi Vàm gets around 31 mm of rain over 5.2 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 17% and peaks near 26% 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 (%) | 26 | 25 | 24 | 23 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 9 |
| Rain chance (%) | |
|---|---|
| 1 | 26 |
| 2 | 25 |
| 3 | 24 |
| 4 | 23 |
| 5 | 22 |
| 6 | 22 |
| 7 | 21 |
| 8 | 21 |
| 9 | 20 |
| 10 | 20 |
| 11 | 19 |
| 12 | 19 |
| 13 | 19 |
| 14 | 18 |
| 15 | 18 |
| 16 | 17 |
| 17 | 17 |
| 18 | 16 |
| 19 | 15 |
| 20 | 15 |
| 21 | 14 |
| 22 | 13 |
| 23 | 13 |
| 24 | 12 |
| 25 | 11 |
| 26 | 11 |
| 27 | 10 |
| 28 | 10 |
| 29 | 9 |
| 30 | 9 |
| 31 | 9 |
Humidity in January
Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the oppressive band about 76% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 |
| Muggy (%) | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 26 | 26 | 27 | 28 | 29 | 29 |
| Oppressive (%) | 79 | 79 | 79 | 79 | 78 | 78 | 77 | 77 | 76 | 76 | 75 | 76 | 75 | 75 | 76 | 76 | 75 | 75 | 76 | 75 | 75 | 74 | 74 | 74 | 73 | 72 | 73 | 72 | 71 | 70 | 71 |
| Miserable (%) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 16 | 79 | 4 |
| 2 | 1 | 16 | 79 | 4 |
| 3 | 1 | 16 | 79 | 4 |
| 4 | 1 | 16 | 79 | 4 |
| 5 | 1 | 17 | 78 | 4 |
| 6 | 1 | 17 | 78 | 4 |
| 7 | 1 | 18 | 77 | 4 |
| 8 | 1 | 18 | 77 | 4 |
| 9 | 1 | 19 | 76 | 4 |
| 10 | 1 | 19 | 76 | 4 |
| 11 | 1 | 20 | 75 | 4 |
| 12 | 1 | 20 | 76 | 3 |
| 13 | 1 | 21 | 75 | 3 |
| 14 | 1 | 21 | 75 | 3 |
| 15 | 1 | 21 | 76 | 2 |
| 16 | 1 | 21 | 76 | 2 |
| 17 | 1 | 22 | 75 | 2 |
| 18 | 1 | 22 | 75 | 2 |
| 19 | 1 | 22 | 76 | 1 |
| 20 | 1 | 23 | 75 | 1 |
| 21 | 1 | 23 | 75 | 1 |
| 22 | 1 | 24 | 74 | 1 |
| 23 | 1 | 24 | 74 | 1 |
| 24 | 1 | 24 | 74 | 1 |
| 25 | 1 | 25 | 73 | 1 |
| 26 | 1 | 26 | 72 | 1 |
| 27 | 1 | 26 | 73 | 0 |
| 28 | 1 | 27 | 72 | 0 |
| 29 | 1 | 28 | 71 | 0 |
| 30 | 1 | 29 | 70 | 0 |
| 31 | 0 | 29 | 71 | 0 |
Wind in January
Winds average 18 km/h in January.
Across January, daily wind ranges from about 17 km/h on the calmest days to 18 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) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 17 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 17 | light breeze |
| 8 | 17 | light breeze |
| 9 | 17 | light breeze |
| 10 | 17 | light breeze |
| 11 | 17 | light breeze |
| 12 | 17 | light breeze |
| 13 | 17 | light breeze |
| 14 | 17 | light breeze |
| 15 | 17 | light breeze |
| 16 | 17 | light breeze |
| 17 | 17 | light breeze |
| 18 | 17 | light breeze |
| 19 | 17 | light breeze |
| 20 | 17 | light breeze |
| 21 | 18 | light breeze |
| 22 | 18 | light breeze |
| 23 | 18 | light breeze |
| 24 | 18 | light breeze |
| 25 | 18 | light breeze |
| 26 | 18 | light breeze |
| 27 | 18 | light breeze |
| 28 | 18 | light breeze |
| 29 | 18 | light breeze |
| 30 | 18 | light breeze |
| 31 | 18 | light breeze |
Sunrise & sunset in January
Daylight runs from about 11 h 30 min at the start of January to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over January. Sunrise moves from 6:19 AM to 6:26 AM, and sunset from 5:49 PM to 6:02 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 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 |
| Sunrise (AM) | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:23 | 6:23 | 6:24 | 6:24 | 6:24 | 6:24 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 |
| Sunset (PM) | 5:49 | 5:49 | 5:50 | 5:50 | 5:51 | 5:51 | 5:52 | 5:52 | 5:53 | 5:53 | 5:54 | 5:54 | 5:55 | 5:55 | 5:56 | 5:56 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.5 | 6:19 | 5:49 |
| 2 | 11.5 | 6:20 | 5:49 |
| 3 | 11.5 | 6:20 | 5:50 |
| 4 | 11.5 | 6:20 | 5:50 |
| 5 | 11.5 | 6:21 | 5:51 |
| 6 | 11.5 | 6:21 | 5:51 |
| 7 | 11.5 | 6:21 | 5:52 |
| 8 | 11.5 | 6:22 | 5:52 |
| 9 | 11.5 | 6:22 | 5:53 |
| 10 | 11.5 | 6:22 | 5:53 |
| 11 | 11.5 | 6:23 | 5:54 |
| 12 | 11.5 | 6:23 | 5:54 |
| 13 | 11.5 | 6:23 | 5:55 |
| 14 | 11.5 | 6:23 | 5:55 |
| 15 | 11.5 | 6:24 | 5:56 |
| 16 | 11.5 | 6:24 | 5:56 |
| 17 | 11.5 | 6:24 | 5:57 |
| 18 | 11.5 | 6:24 | 5:57 |
| 19 | 11.5 | 6:25 | 5:57 |
| 20 | 11.6 | 6:25 | 5:58 |
| 21 | 11.6 | 6:25 | 5:58 |
| 22 | 11.6 | 6:25 | 5:59 |
| 23 | 11.6 | 6:25 | 5:59 |
| 24 | 11.6 | 6:25 | 6:00 |
| 25 | 11.6 | 6:25 | 6:00 |
| 26 | 11.6 | 6:26 | 6:01 |
| 27 | 11.6 | 6:26 | 6:01 |
| 28 | 11.6 | 6:26 | 6:01 |
| 29 | 11.6 | 6:26 | 6:02 |
| 30 | 11.6 | 6:26 | 6:02 |
| 31 | 11.6 | 6:26 | 6:02 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.19 kWh/m².
For context, solar energy here swings from a low near 4.46 kWh/m² to a high of 6.31 kWh/m² in March across the year — January's 5.19 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) | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 |
| 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 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.1 | Bright |
| 12 | 5.1 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.2 | Bright |
| 15 | 5.2 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.3 | Bright |
| 20 | 5.3 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.4 | Bright |
| 24 | 5.4 | Bright |
| 25 | 5.4 | Bright |
| 26 | 5.5 | Bright |
| 27 | 5.5 | Bright |
| 28 | 5.5 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.6 | Bright |
Hazard calendar for Cái Đôi Vàm
In January, Cái Đôi Vàm sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Cái Đôi Vàm sits in the Pacific typhoon belt; the season peaks July–October.
Cái Đôi Vàm's rainy season runs May–November, when most of the year's rain falls.
Is January a good time to visit Cái Đôi Vàm?
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 Cái Đôi Vàm for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cái Đôi Vàm in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Cái Đôi Vàm sees daytime highs around 28°C and nights near 25°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.
Sea temperature near Cái Đôi Vàm in January
The nearest coast averages about 27°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 21 km away) is warmest in May at about 30°C and coldest in January near 27°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) | 27 | 27 | 28 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Cái Đôi Vàm in January
Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cái Đôi Vàm peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).
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) | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 13 | 13 | 11 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Very high |
Air quality in Cái Đôi Vàm 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 Cái Đôi Vàm is worst in December — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (May, 12 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) | 19 | 17 | 15 | 14 | 12 | 13 | 15 | 13 | 14 | 15 | 18 | 22 |
| Level | Moderate | Moderate | Moderate | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 17 | Moderate |
| Mar | 15 | Moderate |
| Apr | 14 | Moderate |
| May | 12 | Good |
| Jun | 13 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 14 | Moderate |
| Oct | 15 | Moderate |
| Nov | 18 | Moderate |
| Dec | 22 | Moderate |
Where is Cái Đôi Vàm?
Cái Đôi Vàm sits at 8.9°N, 104.8°E, 2 m above sea level, in Vietnam. The nearest listed city is Hưng Mỹ, 19 km away.
Topography around Cái Đôi Vàm
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cái Đôi Vàm.
Within 3 km, the terrain around Cái Đôi Vàm has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 17 m; within 80 km, significant variations in elevation — a maximum elevation change of 285 m.
The land around Cái Đôi Vàm is covered by water (34%) and mangroves (32%) within 3 km, water (62%) within 16 km, and water (78%) 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 Cái Đôi Vàm (8.8571°, 104.812°, elevation 2 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).