Cha-am weather in March
In March, Cha-am sees average daytime highs of 31°C and overnight lows near 26°C, with 48 mm of rain across 5.4 wet days and about 11.9 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.
Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 57% of the time in March, and the air most often feels oppressive.
Daylight stretches from about 11 h 42 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Cha-am's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Cha-am's year-round climate.
- Daytime high
- 31°
- 5th warmest
- Overnight low
- 26°
- 7th coldest
- Rainfall
- 48 mm
- 5.4 wet days
- Daylight
- 11 h 54 min
- 6:32 AM – 6:27 PM
- Cloud cover
- 39%
- 3rd clearest
- Wind
- 14 km/h
- 2nd windiest
- Solar energy
- 6.17 kWh/m²
- Travel score
- 5.2
- out of 10
Cha-am is town in Phetchaburi province, Thailand.
- Density
- 75/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 31°C through the month.
A typical March day in Cha-am reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, March runs about 1°C warmer than February and about 1°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) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 |
| Avg low (°C) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 31 | 26 |
| 2 | 31 | 26 |
| 3 | 31 | 26 |
| 4 | 31 | 26 |
| 5 | 31 | 26 |
| 6 | 31 | 26 |
| 7 | 31 | 26 |
| 8 | 31 | 26 |
| 9 | 31 | 26 |
| 10 | 31 | 26 |
| 11 | 31 | 26 |
| 12 | 31 | 26 |
| 13 | 31 | 26 |
| 14 | 31 | 26 |
| 15 | 31 | 26 |
| 16 | 31 | 26 |
| 17 | 31 | 26 |
| 18 | 31 | 26 |
| 19 | 31 | 26 |
| 20 | 31 | 26 |
| 21 | 31 | 26 |
| 22 | 31 | 26 |
| 23 | 31 | 26 |
| 24 | 31 | 27 |
| 25 | 31 | 27 |
| 26 | 31 | 27 |
| 27 | 31 | 27 |
| 28 | 31 | 27 |
| 29 | 31 | 27 |
| 30 | 31 | 27 |
| 31 | 32 | 27 |
How March really feels in Cha-am
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.
Cha-am weather by month
How March compares with the rest of the year at a glance. March is the 5th-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 | 29° / 24° | 17 | 2.6 | 11.3 | 6.9 |
| Feb | 30° / 25° | 10 | 2 | 11.6 | 6.4 |
| Mar | 31° / 26° | 48 | 5.4 | 11.9 | 5.2 |
| Apr | 32° / 27° | 53 | 8.8 | 12.3 | 4.1 |
| May | 32° / 28° | 91 | 17.5 | 12.6 | 3.1 |
| Jun | 32° / 27° | 62 | 14.3 | 12.7 | 3.4 |
| Jul | 31° / 27° | 81 | 16.2 | 12.7 | 3.5 |
| Aug | 31° / 27° | 86 | 18.3 | 12.4 | 3.4 |
| Sep | 30° / 26° | 140 | 20 | 12.1 | 3.4 |
| Oct | 29° / 26° | 253 | 23.1 | 11.7 | 3.7 |
| Nov | 29° / 26° | 76 | 8.6 | 11.4 | 5.5 |
| Dec | 29° / 24° | 17 | 2.6 | 11.3 | 6.8 |
Cloud cover in March
The sky is clear or mostly clear about 57% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.
| 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 (%) | 81 | 82 | 82 | 81 | 81 | 81 | 81 | 80 | 79 | 79 | 78 | 78 | 77 | 76 | 75 | 74 | 72 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 66 | 66 | 66 |
| Cloudier (%) | 19 | 18 | 18 | 19 | 19 | 19 | 19 | 20 | 21 | 21 | 22 | 22 | 23 | 24 | 25 | 26 | 28 | 28 | 29 | 30 | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 81 | 19 |
| 2 | 82 | 18 |
| 3 | 82 | 18 |
| 4 | 81 | 19 |
| 5 | 81 | 19 |
| 6 | 81 | 19 |
| 7 | 81 | 19 |
| 8 | 80 | 20 |
| 9 | 79 | 21 |
| 10 | 79 | 21 |
| 11 | 78 | 22 |
| 12 | 78 | 22 |
| 13 | 77 | 23 |
| 14 | 76 | 24 |
| 15 | 75 | 25 |
| 16 | 74 | 26 |
| 17 | 72 | 28 |
| 18 | 72 | 28 |
| 19 | 71 | 29 |
| 20 | 70 | 30 |
| 21 | 69 | 31 |
| 22 | 68 | 32 |
| 23 | 68 | 32 |
| 24 | 67 | 33 |
| 25 | 67 | 33 |
| 26 | 67 | 33 |
| 27 | 67 | 33 |
| 28 | 67 | 33 |
| 29 | 66 | 34 |
| 30 | 66 | 34 |
| 31 | 66 | 34 |
Chance of precipitation in March
Cha-am gets around 48 mm of rain over 5.4 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 17% and peaks near 24% 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 | 10 | 10 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 14 | 15 | 15 | 16 | 17 | 18 | 19 | 20 | 20 | 21 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 |
| Rain chance (%) | |
|---|---|
| 1 | 10 |
| 2 | 10 |
| 3 | 10 |
| 4 | 11 |
| 5 | 11 |
| 6 | 11 |
| 7 | 12 |
| 8 | 12 |
| 9 | 13 |
| 10 | 13 |
| 11 | 13 |
| 12 | 14 |
| 13 | 15 |
| 14 | 15 |
| 15 | 16 |
| 16 | 17 |
| 17 | 18 |
| 18 | 19 |
| 19 | 20 |
| 20 | 20 |
| 21 | 21 |
| 22 | 22 |
| 23 | 22 |
| 24 | 23 |
| 25 | 23 |
| 26 | 23 |
| 27 | 24 |
| 28 | 24 |
| 29 | 23 |
| 30 | 23 |
| 31 | 23 |
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 71% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Muggy (%) | 14 | 13 | 12 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
| Oppressive (%) | 76 | 77 | 77 | 77 | 77 | 78 | 78 | 77 | 77 | 76 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 66 | 65 | 64 | 63 | 63 | 62 | 61 |
| Miserable (%) | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 2 | 14 | 76 | 8 |
| 2 | 2 | 13 | 77 | 8 |
| 3 | 2 | 12 | 77 | 9 |
| 4 | 2 | 12 | 77 | 9 |
| 5 | 2 | 11 | 77 | 10 |
| 6 | 2 | 10 | 78 | 10 |
| 7 | 2 | 9 | 78 | 11 |
| 8 | 2 | 9 | 77 | 12 |
| 9 | 2 | 8 | 77 | 13 |
| 10 | 2 | 8 | 76 | 14 |
| 11 | 2 | 8 | 75 | 15 |
| 12 | 2 | 7 | 75 | 16 |
| 13 | 2 | 7 | 74 | 17 |
| 14 | 2 | 6 | 74 | 18 |
| 15 | 2 | 6 | 73 | 19 |
| 16 | 1 | 6 | 73 | 20 |
| 17 | 1 | 5 | 73 | 21 |
| 18 | 1 | 5 | 72 | 22 |
| 19 | 1 | 4 | 71 | 24 |
| 20 | 1 | 4 | 70 | 25 |
| 21 | 1 | 4 | 69 | 26 |
| 22 | 1 | 4 | 68 | 27 |
| 23 | 1 | 3 | 68 | 28 |
| 24 | 1 | 3 | 67 | 29 |
| 25 | 1 | 3 | 66 | 30 |
| 26 | 1 | 3 | 65 | 31 |
| 27 | 1 | 3 | 64 | 32 |
| 28 | 1 | 3 | 63 | 33 |
| 29 | 1 | 2 | 63 | 34 |
| 30 | 1 | 2 | 62 | 35 |
| 31 | 1 | 2 | 61 | 36 |
Wind in March
Winds average 14 km/h in March.
Across March, daily wind ranges from about 13 km/h on the calmest days to 14 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) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
| 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 | 14 | light breeze |
| 2 | 14 | light breeze |
| 3 | 14 | light breeze |
| 4 | 14 | light breeze |
| 5 | 14 | light breeze |
| 6 | 14 | light breeze |
| 7 | 14 | light breeze |
| 8 | 14 | light breeze |
| 9 | 14 | light breeze |
| 10 | 14 | light breeze |
| 11 | 14 | light breeze |
| 12 | 14 | light breeze |
| 13 | 14 | light breeze |
| 14 | 14 | light breeze |
| 15 | 14 | light breeze |
| 16 | 14 | light breeze |
| 17 | 14 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
| 31 | 13 | light breeze |
Sunrise & sunset in March
Daylight runs from about 11 h 42 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 24 minutes over March. Sunrise moves from 6:41 AM to 6:22 AM, and sunset from 6:25 PM to 6:28 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) | 11.7 | 11.7 | 11.8 | 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:41 | 6:41 | 6:40 | 6:40 | 6:39 | 6:39 | 6:38 | 6:37 | 6:37 | 6:36 | 6:36 | 6:35 | 6:34 | 6:34 | 6:33 | 6:32 | 6:32 | 6:31 | 6:30 | 6:30 | 6:29 | 6:28 | 6:28 | 6:27 | 6:26 | 6:26 | 6:25 | 6:24 | 6:24 | 6:23 | 6:22 |
| Sunset (PM) | 6:25 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:26 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 6:27 | 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 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:41 | 6:25 |
| 2 | 11.7 | 6:41 | 6:26 |
| 3 | 11.8 | 6:40 | 6:26 |
| 4 | 11.8 | 6:40 | 6:26 |
| 5 | 11.8 | 6:39 | 6:26 |
| 6 | 11.8 | 6:39 | 6:26 |
| 7 | 11.8 | 6:38 | 6:26 |
| 8 | 11.8 | 6:37 | 6:26 |
| 9 | 11.8 | 6:37 | 6:26 |
| 10 | 11.8 | 6:36 | 6:27 |
| 11 | 11.9 | 6:36 | 6:27 |
| 12 | 11.9 | 6:35 | 6:27 |
| 13 | 11.9 | 6:34 | 6:27 |
| 14 | 11.9 | 6:34 | 6:27 |
| 15 | 11.9 | 6:33 | 6:27 |
| 16 | 11.9 | 6:32 | 6:27 |
| 17 | 11.9 | 6:32 | 6:27 |
| 18 | 11.9 | 6:31 | 6:27 |
| 19 | 11.9 | 6:30 | 6:27 |
| 20 | 12.0 | 6:30 | 6:27 |
| 21 | 12.0 | 6:29 | 6:27 |
| 22 | 12.0 | 6:28 | 6:28 |
| 23 | 12.0 | 6:28 | 6:28 |
| 24 | 12.0 | 6:27 | 6:28 |
| 25 | 12.0 | 6:26 | 6:28 |
| 26 | 12.0 | 6:26 | 6:28 |
| 27 | 12.0 | 6:25 | 6:28 |
| 28 | 12.1 | 6:24 | 6:28 |
| 29 | 12.1 | 6:24 | 6:28 |
| 30 | 12.1 | 6:23 | 6:28 |
| 31 | 12.1 | 6:22 | 6:28 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.17 kWh/m².
For context, solar energy here swings from a low near 4.44 kWh/m² to a high of 6.33 kWh/m² in April across the year — March's 6.17 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) | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 |
| Level | 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 | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.1 | Intense |
| 2 | 6.1 | Intense |
| 3 | 6.1 | Intense |
| 4 | 6.1 | Intense |
| 5 | 6.1 | Intense |
| 6 | 6.1 | Intense |
| 7 | 6.2 | Intense |
| 8 | 6.2 | Intense |
| 9 | 6.2 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.2 | Intense |
| 12 | 6.2 | Intense |
| 13 | 6.2 | Intense |
| 14 | 6.2 | Intense |
| 15 | 6.2 | Intense |
| 16 | 6.2 | Intense |
| 17 | 6.2 | Intense |
| 18 | 6.2 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.2 | Intense |
| 22 | 6.2 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.2 | Intense |
| 30 | 6.3 | Intense |
| 31 | 6.3 | Intense |
Hazard calendar for Cha-am
None of Cha-am's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Cha-am sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Cha-am's rainy season runs September–October, when most of the year's rain falls.
Is March a good time to visit Cha-am?
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 Cha-am for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Cha-am in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Cha-am sees daytime highs around 31°C and nights near 26°C. Pack light clothes and sun protection. About 5 days see rain.
Sea temperature near Cha-am 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 19 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 | 30 | 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 | 30 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Cha-am 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 Cha-am peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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) | 9 | 10 | 12 | 12 | 12 | 12 | 12 | 14 | 12 | 11 | 9 | 9 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Cha-am 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 Cha-am is worst in February — around 34 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (August, 14 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) | 32 | 34 | 34 | 31 | 19 | 14 | 15 | 14 | 14 | 22 | 27 | 29 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 32 | Moderate |
| Feb | 34 | Moderate |
| Mar | 34 | Moderate |
| Apr | 31 | Moderate |
| May | 19 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 14 | Moderate |
| Oct | 22 | Moderate |
| Nov | 27 | Moderate |
| Dec | 29 | Moderate |
Where is Cha-am?
Cha-am sits at 12.8°N, 100.0°E, 5 m above sea level, in Thailand. The nearest listed city is Tha Yang, 19 km away.
Topography around Cha-am
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cha-am.
Within 3 km, the terrain around Cha-am has only modest variations in elevation — a maximum elevation change of 214 m around an average of 7 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 643 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,314 m.
The land around Cha-am is covered by artificial surfaces (22%), trees (21%) and grassland (20%) within 3 km, water (41%) and trees (27%) within 16 km, and trees (46%) and water (40%) within 80 km.
Thailand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 31% of US
- price level, 2025
- GDP per capita
- $8,057
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 4.8
- per 100k, 2011
- Road deaths
- 32.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 402
- 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 Cha-am (12.8°, 99.9667°, elevation 5 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).