Cô Tô weather in March
In March, Cô Tô sees average daytime highs of 33°C and overnight lows near 25°C, with 47 mm of rain across 7.2 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 32% of the time in March, and the air most often feels oppressive.
Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Cô Tô's 2nd-clearest and 7th-windiest month. For the whole year in context, see Cô Tô's year-round climate.
- Daytime high
- 33°
- 2nd warmest
- Overnight low
- 25°
- 6th coldest
- Rainfall
- 47 mm
- 7.2 wet days
- Daylight
- 11 h 54 min
- 6:12 AM – 6:07 PM
- Cloud cover
- 56%
- 2nd clearest
- Wind
- 9 km/h
- 7th windiest
- Solar energy
- 6.07 kWh/m²
- Travel score
- 3.5
- out of 10
Temperature in March
Day-to-day highs hold fairly steady near 33°C through the month.
A typical March day in Cô Tô reaches about 33°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, March runs about 2°C warmer than February and on par with 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) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 24 |
| 2 | 33 | 24 |
| 3 | 33 | 24 |
| 4 | 33 | 24 |
| 5 | 33 | 25 |
| 6 | 33 | 25 |
| 7 | 33 | 25 |
| 8 | 33 | 25 |
| 9 | 33 | 25 |
| 10 | 33 | 25 |
| 11 | 33 | 25 |
| 12 | 33 | 25 |
| 13 | 33 | 25 |
| 14 | 33 | 25 |
| 15 | 34 | 25 |
| 16 | 34 | 25 |
| 17 | 34 | 25 |
| 18 | 34 | 25 |
| 19 | 34 | 25 |
| 20 | 34 | 25 |
| 21 | 34 | 25 |
| 22 | 34 | 25 |
| 23 | 34 | 25 |
| 24 | 34 | 25 |
| 25 | 34 | 26 |
| 26 | 34 | 26 |
| 27 | 34 | 26 |
| 28 | 34 | 26 |
| 29 | 34 | 26 |
| 30 | 34 | 26 |
| 31 | 34 | 26 |
How March really feels in Cô Tô
Once humidity and wind are folded in, March 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 March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Cô Tô weather by month
How March compares with the rest of the year at a glance. March is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 23° | 26 | 4.9 | 11.5 | 5.1 |
| Feb | 32° / 23° | 15 | 2.6 | 11.7 | 4.7 |
| Mar | 33° / 25° | 47 | 7.2 | 11.9 | 3.5 |
| Apr | 34° / 26° | 97 | 15 | 12.2 | 2.6 |
| May | 33° / 27° | 187 | 25.2 | 12.5 | 2.3 |
| Jun | 31° / 26° | 231 | 26.6 | 12.6 | 2.6 |
| Jul | 30° / 26° | 237 | 27.8 | 12.5 | 2.7 |
| Aug | 30° / 26° | 225 | 28.8 | 12.3 | 2.6 |
| Sep | 30° / 26° | 267 | 27.5 | 12.1 | 2.6 |
| Oct | 31° / 25° | 315 | 27.6 | 11.8 | 2.6 |
| Nov | 31° / 24° | 139 | 16.9 | 11.5 | 3.5 |
| Dec | 31° / 24° | 62 | 9 | 11.4 | 4.7 |
Cloud cover in March
The sky is clear or mostly clear about 32% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 24% of March, with mostly cloudy or overcast conditions the remaining 44%.
| 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 (%) | 53 | 55 | 55 | 56 | 57 | 57 | 58 | 59 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 58 | 57 | 56 | 55 | 55 | 54 | 54 | 54 | 53 | 53 | 53 | 52 | 52 | 52 | 52 | 52 |
| Cloudier (%) | 47 | 45 | 45 | 44 | 43 | 43 | 42 | 41 | 40 | 40 | 40 | 40 | 40 | 41 | 41 | 42 | 43 | 44 | 45 | 45 | 46 | 46 | 46 | 47 | 47 | 47 | 48 | 48 | 48 | 48 | 48 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 53 | 47 |
| 2 | 55 | 45 |
| 3 | 55 | 45 |
| 4 | 56 | 44 |
| 5 | 57 | 43 |
| 6 | 57 | 43 |
| 7 | 58 | 42 |
| 8 | 59 | 41 |
| 9 | 60 | 40 |
| 10 | 60 | 40 |
| 11 | 60 | 40 |
| 12 | 60 | 40 |
| 13 | 60 | 40 |
| 14 | 59 | 41 |
| 15 | 59 | 41 |
| 16 | 58 | 42 |
| 17 | 57 | 43 |
| 18 | 56 | 44 |
| 19 | 55 | 45 |
| 20 | 55 | 45 |
| 21 | 54 | 46 |
| 22 | 54 | 46 |
| 23 | 54 | 46 |
| 24 | 53 | 47 |
| 25 | 53 | 47 |
| 26 | 53 | 47 |
| 27 | 52 | 48 |
| 28 | 52 | 48 |
| 29 | 52 | 48 |
| 30 | 52 | 48 |
| 31 | 52 | 48 |
Chance of precipitation in March
Cô Tô gets around 47 mm of rain over 7.2 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 24% and peaks near 37% 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 (%) | 10 | 11 | 11 | 12 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 20 | 21 | 22 | 23 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 32 | 33 | 34 | 34 | 35 | 35 | 36 | 37 |
| Rain chance (%) | |
|---|---|
| 1 | 10 |
| 2 | 11 |
| 3 | 11 |
| 4 | 12 |
| 5 | 12 |
| 6 | 13 |
| 7 | 14 |
| 8 | 15 |
| 9 | 16 |
| 10 | 17 |
| 11 | 18 |
| 12 | 20 |
| 13 | 21 |
| 14 | 22 |
| 15 | 23 |
| 16 | 25 |
| 17 | 26 |
| 18 | 27 |
| 19 | 28 |
| 20 | 29 |
| 21 | 30 |
| 22 | 31 |
| 23 | 32 |
| 24 | 32 |
| 25 | 33 |
| 26 | 34 |
| 27 | 34 |
| 28 | 35 |
| 29 | 35 |
| 30 | 36 |
| 31 | 37 |
Humidity in March
Most of March feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the oppressive band about 66% 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 (%) | 2 | 2 | 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 | 0 | 0 | 0 | 0 |
| Muggy (%) | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 26 | 25 | 24 | 22 | 21 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 |
| Oppressive (%) | 59 | 59 | 60 | 61 | 61 | 62 | 63 | 63 | 64 | 66 | 66 | 67 | 68 | 70 | 70 | 70 | 72 | 72 | 72 | 72 | 72 | 71 | 70 | 70 | 68 | 68 | 67 | 66 | 65 | 64 | 63 |
| Miserable (%) | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 11 | 12 | 13 | 14 | 15 | 16 | 18 | 19 | 21 | 22 | 24 | 25 | 27 | 28 | 30 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 2 | 35 | 59 | 4 |
| 2 | 2 | 35 | 59 | 4 |
| 3 | 1 | 34 | 60 | 5 |
| 4 | 1 | 33 | 61 | 5 |
| 5 | 1 | 32 | 61 | 6 |
| 6 | 1 | 31 | 62 | 6 |
| 7 | 1 | 30 | 63 | 6 |
| 8 | 1 | 29 | 63 | 7 |
| 9 | 1 | 28 | 64 | 7 |
| 10 | 1 | 26 | 66 | 7 |
| 11 | 1 | 25 | 66 | 8 |
| 12 | 1 | 24 | 67 | 8 |
| 13 | 1 | 22 | 68 | 9 |
| 14 | 0 | 21 | 70 | 9 |
| 15 | 0 | 20 | 70 | 10 |
| 16 | 0 | 19 | 70 | 11 |
| 17 | 0 | 17 | 72 | 11 |
| 18 | 0 | 16 | 72 | 12 |
| 19 | 0 | 15 | 72 | 13 |
| 20 | 0 | 14 | 72 | 14 |
| 21 | 0 | 13 | 72 | 15 |
| 22 | 0 | 13 | 71 | 16 |
| 23 | 0 | 12 | 70 | 18 |
| 24 | 0 | 11 | 70 | 19 |
| 25 | 0 | 11 | 68 | 21 |
| 26 | 0 | 10 | 68 | 22 |
| 27 | 0 | 9 | 67 | 24 |
| 28 | 0 | 9 | 66 | 25 |
| 29 | 0 | 8 | 65 | 27 |
| 30 | 0 | 8 | 64 | 28 |
| 31 | 0 | 7 | 63 | 30 |
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 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 18 minutes over March. Sunrise moves from 6:20 AM to 6:03 AM, and sunset from 6:07 PM to 6:07 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) | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:20 | 6:19 | 6:19 | 6:18 | 6:18 | 6:17 | 6:17 | 6:16 | 6:16 | 6:15 | 6:15 | 6:14 | 6:13 | 6:13 | 6:12 | 6:12 | 6:11 | 6:11 | 6:10 | 6:09 | 6:09 | 6:08 | 6:08 | 6:07 | 6:06 | 6:06 | 6:05 | 6:04 | 6:04 | 6:03 | 6:03 |
| Sunset (PM) | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 | 6:07 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 6:20 | 6:07 |
| 2 | 11.8 | 6:19 | 6:07 |
| 3 | 11.8 | 6:19 | 6:07 |
| 4 | 11.8 | 6:18 | 6:07 |
| 5 | 11.8 | 6:18 | 6:07 |
| 6 | 11.8 | 6:17 | 6:07 |
| 7 | 11.8 | 6:17 | 6:07 |
| 8 | 11.9 | 6:16 | 6:07 |
| 9 | 11.9 | 6:16 | 6:07 |
| 10 | 11.9 | 6:15 | 6:07 |
| 11 | 11.9 | 6:15 | 6:07 |
| 12 | 11.9 | 6:14 | 6:07 |
| 13 | 11.9 | 6:13 | 6:07 |
| 14 | 11.9 | 6:13 | 6:07 |
| 15 | 11.9 | 6:12 | 6:07 |
| 16 | 11.9 | 6:12 | 6:07 |
| 17 | 11.9 | 6:11 | 6:07 |
| 18 | 11.9 | 6:11 | 6:07 |
| 19 | 12.0 | 6:10 | 6:07 |
| 20 | 12.0 | 6:09 | 6:07 |
| 21 | 12.0 | 6:09 | 6:07 |
| 22 | 12.0 | 6:08 | 6:07 |
| 23 | 12.0 | 6:08 | 6:07 |
| 24 | 12.0 | 6:07 | 6:07 |
| 25 | 12.0 | 6:06 | 6:07 |
| 26 | 12.0 | 6:06 | 6:07 |
| 27 | 12.0 | 6:05 | 6:07 |
| 28 | 12.0 | 6:04 | 6:07 |
| 29 | 12.1 | 6:04 | 6:07 |
| 30 | 12.1 | 6:03 | 6:07 |
| 31 | 12.1 | 6:03 | 6:07 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.07 kWh/m².
For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 6.1 kWh/m² in April across the year — March's 6.07 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) | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 |
| Level | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.0 | Bright |
| 2 | 6.0 | Bright |
| 3 | 6.0 | Intense |
| 4 | 6.0 | Intense |
| 5 | 6.0 | Intense |
| 6 | 6.0 | Intense |
| 7 | 6.0 | Intense |
| 8 | 6.0 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.1 | Intense |
| 11 | 6.1 | Intense |
| 12 | 6.1 | Intense |
| 13 | 6.1 | Intense |
| 14 | 6.1 | Intense |
| 15 | 6.1 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.1 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.1 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for Cô Tô
In March, Cô Tô sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Cô Tô sits in the Pacific typhoon belt; the season peaks July–October.
Cô Tô's rainy season runs May–October, when most of the year's rain falls.
Is March a good time to visit Cô Tô?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Cô Tô. The water and warmth also suit a beach or pool day.
What to pack for Cô Tô in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Cô Tô sees daytime highs around 33°C and nights near 25°C. Pack light clothes and sun protection. About 7 days see rain.
Sea temperature near Cô Tô in March
The nearest coast averages about 29°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 29 km away) is warmest in May at about 31°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 | 28 | 29 | 30 | 31 | 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 | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | 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 Cô Tô in March
Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Cô Tô peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 9 (very 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) | 10 | 11 | 12 | 12 | 11 | 11 | 12 | 13 | 13 | 10 | 9 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Extreme |
| Feb | 11 | Extreme |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 10 | Very high |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Cô Tô 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 Cô Tô is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 21 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) | 55 | 49 | 44 | 40 | 33 | 25 | 24 | 21 | 27 | 39 | 47 | 48 |
| Level | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 55 | Poor |
| Feb | 49 | Poor |
| Mar | 44 | Poor |
| Apr | 40 | Poor |
| May | 33 | Moderate |
| Jun | 25 | Moderate |
| Jul | 24 | Moderate |
| Aug | 21 | Moderate |
| Sep | 27 | Moderate |
| Oct | 39 | Poor |
| Nov | 47 | Poor |
| Dec | 48 | Poor |
Where is Cô Tô?
Cô Tô sits at 10.3°N, 105.0°E, 1 m above sea level, in Vietnam. The nearest listed city is Óc Eo, 19 km away.
Topography around Cô Tô
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cô Tô.
Within 3 km, the terrain around Cô Tô has significant variations in elevation — a maximum elevation change of 413 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 633 m; within 80 km, large variations in elevation — a maximum elevation change of 691 m.
The land around Cô Tô is covered by cropland (76%) within 3 km, cropland (79%) within 16 km, and cropland (61%) and water (23%) 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 Cô Tô (10.35°, 105.0167°, elevation 1 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).