Si Mahosot weather in December
In December, Si Mahosot sees average daytime highs of 31°C and overnight lows near 21°C, with 5 mm of rain across 1.2 wet days and about 11.2 hours of daylight. It is the 12th-warmest and 12th-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 47% of the time in December, and the air most often feels muggy.
Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Si Mahosot's 4th-clearest and 1st-windiest month. For the whole year in context, see Si Mahosot's year-round climate.
- Daytime high
- 31°
- 12th warmest
- Overnight low
- 21°
- 2nd coldest
- Rainfall
- 5 mm
- 1.2 wet days
- Daylight
- 11 h 12 min
- 6:35 AM – 5:46 PM
- Cloud cover
- 47%
- 4th clearest
- Wind
- 9 km/h
- 1st windiest
- Solar energy
- 4.82 kWh/m²
- Travel score
- 5.5
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 31°C through the month.
A typical December day in Si Mahosot reaches about 31°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°C. Set against its neighbours, December runs on par with November and on par with January.
| 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) | 32 | 32 | 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 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 32 | 22 |
| 2 | 32 | 22 |
| 3 | 31 | 22 |
| 4 | 31 | 22 |
| 5 | 31 | 22 |
| 6 | 31 | 22 |
| 7 | 31 | 22 |
| 8 | 31 | 22 |
| 9 | 31 | 22 |
| 10 | 31 | 22 |
| 11 | 31 | 22 |
| 12 | 31 | 21 |
| 13 | 31 | 21 |
| 14 | 31 | 21 |
| 15 | 31 | 21 |
| 16 | 31 | 21 |
| 17 | 31 | 21 |
| 18 | 31 | 21 |
| 19 | 31 | 21 |
| 20 | 31 | 21 |
| 21 | 31 | 21 |
| 22 | 31 | 21 |
| 23 | 31 | 21 |
| 24 | 31 | 21 |
| 25 | 31 | 20 |
| 26 | 31 | 20 |
| 27 | 31 | 20 |
| 28 | 31 | 20 |
| 29 | 31 | 20 |
| 30 | 31 | 20 |
| 31 | 31 | 20 |
How December really feels in Si Mahosot
Once humidity and wind are folded in, December averages 15 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 December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Si Mahosot weather by month
How December compares with the rest of the year at a glance. December is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 32° / 21° | 10 | 2.2 | 11.3 | 5.1 |
| Feb | 33° / 22° | 13 | 3 | 11.5 | 4.2 |
| Mar | 34° / 24° | 41 | 8.5 | 11.9 | 3.1 |
| Apr | 35° / 26° | 70 | 13.3 | 12.3 | 2.3 |
| May | 34° / 26° | 209 | 24 | 12.6 | 2.1 |
| Jun | 32° / 25° | 267 | 26.5 | 12.8 | 2.2 |
| Jul | 32° / 25° | 281 | 27.6 | 12.7 | 2.3 |
| Aug | 32° / 25° | 300 | 28.2 | 12.5 | 2.3 |
| Sep | 31° / 25° | 308 | 27.3 | 12.1 | 2.4 |
| Oct | 32° / 24° | 148 | 18.8 | 11.7 | 3.4 |
| Nov | 32° / 23° | 24 | 4.3 | 11.4 | 4.7 |
| Dec | 31° / 21° | 5 | 1.2 | 11.2 | 5.5 |
Cloud cover in December
The sky is clear or mostly clear about 47% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to open up 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 (%) | 64 | 64 | 63 | 63 | 63 | 63 | 63 | 62 | 63 | 64 | 64 | 65 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 71 | 72 | 73 | 73 | 73 | 74 | 73 | 73 | 73 | 73 | 72 | 72 |
| Cloudier (%) | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 38 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 29 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 28 | 28 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 64 | 36 |
| 2 | 64 | 36 |
| 3 | 63 | 37 |
| 4 | 63 | 37 |
| 5 | 63 | 37 |
| 6 | 63 | 37 |
| 7 | 63 | 37 |
| 8 | 62 | 38 |
| 9 | 63 | 37 |
| 10 | 64 | 36 |
| 11 | 64 | 36 |
| 12 | 65 | 35 |
| 13 | 65 | 35 |
| 14 | 66 | 34 |
| 15 | 67 | 33 |
| 16 | 68 | 32 |
| 17 | 69 | 31 |
| 18 | 70 | 30 |
| 19 | 71 | 29 |
| 20 | 71 | 29 |
| 21 | 72 | 28 |
| 22 | 73 | 27 |
| 23 | 73 | 27 |
| 24 | 73 | 27 |
| 25 | 74 | 26 |
| 26 | 73 | 27 |
| 27 | 73 | 27 |
| 28 | 73 | 27 |
| 29 | 73 | 27 |
| 30 | 72 | 28 |
| 31 | 72 | 28 |
Chance of precipitation in December
Si Mahosot gets around 5 mm of rain over 1.2 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 4% and peaks near 6% on the wettest days.
| 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 (%) | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 |
| Rain chance (%) | |
|---|---|
| 1 | 6 |
| 2 | 6 |
| 3 | 5 |
| 4 | 5 |
| 5 | 5 |
| 6 | 5 |
| 7 | 4 |
| 8 | 4 |
| 9 | 4 |
| 10 | 4 |
| 11 | 4 |
| 12 | 3 |
| 13 | 3 |
| 14 | 3 |
| 15 | 3 |
| 16 | 3 |
| 17 | 3 |
| 18 | 3 |
| 19 | 3 |
| 20 | 3 |
| 21 | 3 |
| 22 | 3 |
| 23 | 3 |
| 24 | 3 |
| 25 | 3 |
| 26 | 3 |
| 27 | 3 |
| 28 | 4 |
| 29 | 4 |
| 30 | 4 |
| 31 | 5 |
Humidity in December
Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the muggy band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 59% 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 (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 6 |
| Comfortable (%) | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 12 | 13 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 |
| Humid (%) | 18 | 19 | 19 | 20 | 21 | 21 | 22 | 23 | 24 | 25 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 30 |
| Muggy (%) | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 36 | 35 | 35 | 34 | 33 | 32 | 31 | 30 | 30 | 29 | 29 | 30 | 29 | 30 | 31 | 31 | 32 | 32 | 32 |
| Oppressive (%) | 33 | 32 | 31 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 |
| Miserable (%) | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 4 | 18 | 38 | 33 | 5 |
| 2 | 1 | 5 | 19 | 38 | 32 | 5 |
| 3 | 1 | 5 | 19 | 39 | 31 | 4 |
| 4 | 1 | 6 | 20 | 39 | 31 | 4 |
| 5 | 1 | 6 | 21 | 39 | 30 | 3 |
| 6 | 1 | 6 | 21 | 39 | 29 | 3 |
| 7 | 1 | 7 | 22 | 39 | 29 | 2 |
| 8 | 1 | 7 | 23 | 39 | 28 | 2 |
| 9 | 2 | 8 | 24 | 38 | 27 | 1 |
| 10 | 2 | 8 | 25 | 38 | 26 | 1 |
| 11 | 2 | 9 | 25 | 38 | 25 | 1 |
| 12 | 2 | 10 | 26 | 37 | 24 | 1 |
| 13 | 2 | 11 | 26 | 36 | 24 | 1 |
| 14 | 3 | 12 | 26 | 35 | 23 | 1 |
| 15 | 3 | 12 | 27 | 35 | 23 | 1 |
| 16 | 4 | 13 | 27 | 34 | 22 | 0 |
| 17 | 4 | 14 | 27 | 33 | 22 | 0 |
| 18 | 5 | 14 | 27 | 32 | 22 | 0 |
| 19 | 6 | 15 | 27 | 31 | 21 | 0 |
| 20 | 6 | 15 | 27 | 30 | 21 | 0 |
| 21 | 7 | 15 | 28 | 30 | 20 | 0 |
| 22 | 7 | 16 | 28 | 29 | 20 | 0 |
| 23 | 7 | 16 | 28 | 29 | 19 | 0 |
| 24 | 7 | 16 | 29 | 30 | 18 | 0 |
| 25 | 8 | 16 | 28 | 29 | 18 | 0 |
| 26 | 8 | 16 | 28 | 30 | 17 | 0 |
| 27 | 7 | 16 | 29 | 31 | 17 | 0 |
| 28 | 7 | 16 | 29 | 31 | 17 | 0 |
| 29 | 7 | 16 | 29 | 32 | 17 | 0 |
| 30 | 6 | 15 | 29 | 32 | 17 | 0 |
| 31 | 6 | 15 | 30 | 32 | 17 | 1 |
Wind in December
Winds average 9 km/h in December, the windiest month of the year.
Across December, daily wind ranges from about 8 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) | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| 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 | 8 | calm |
| 2 | 8 | 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 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in December
Daylight runs from about 11 h 12 min at the start of December to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over December. Sunrise moves from 6:27 AM to 6:42 AM, and sunset from 5:41 PM to 5:53 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) | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 |
| Sunrise (AM) | 6:27 | 6:28 | 6:28 | 6:29 | 6:29 | 6:30 | 6:30 | 6:31 | 6:31 | 6:32 | 6:32 | 6:33 | 6:33 | 6:34 | 6:34 | 6:35 | 6:36 | 6:36 | 6:37 | 6:37 | 6:37 | 6:38 | 6:38 | 6:39 | 6:39 | 6:40 | 6:40 | 6:41 | 6:41 | 6:41 | 6:42 |
| Sunset (PM) | 5:41 | 5:42 | 5:42 | 5:42 | 5:42 | 5:43 | 5:43 | 5:43 | 5:43 | 5:44 | 5:44 | 5:45 | 5:45 | 5:45 | 5:46 | 5:46 | 5:46 | 5:47 | 5:47 | 5:48 | 5:48 | 5:49 | 5:49 | 5:50 | 5:50 | 5:51 | 5:51 | 5:52 | 5:52 | 5:53 | 5:53 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.2 | 6:27 | 5:41 |
| 2 | 11.2 | 6:28 | 5:42 |
| 3 | 11.2 | 6:28 | 5:42 |
| 4 | 11.2 | 6:29 | 5:42 |
| 5 | 11.2 | 6:29 | 5:42 |
| 6 | 11.2 | 6:30 | 5:43 |
| 7 | 11.2 | 6:30 | 5:43 |
| 8 | 11.2 | 6:31 | 5:43 |
| 9 | 11.2 | 6:31 | 5:43 |
| 10 | 11.2 | 6:32 | 5:44 |
| 11 | 11.2 | 6:32 | 5:44 |
| 12 | 11.2 | 6:33 | 5:45 |
| 13 | 11.2 | 6:33 | 5:45 |
| 14 | 11.2 | 6:34 | 5:45 |
| 15 | 11.2 | 6:34 | 5:46 |
| 16 | 11.2 | 6:35 | 5:46 |
| 17 | 11.2 | 6:36 | 5:46 |
| 18 | 11.2 | 6:36 | 5:47 |
| 19 | 11.2 | 6:37 | 5:47 |
| 20 | 11.2 | 6:37 | 5:48 |
| 21 | 11.2 | 6:37 | 5:48 |
| 22 | 11.2 | 6:38 | 5:49 |
| 23 | 11.2 | 6:38 | 5:49 |
| 24 | 11.2 | 6:39 | 5:50 |
| 25 | 11.2 | 6:39 | 5:50 |
| 26 | 11.2 | 6:40 | 5:51 |
| 27 | 11.2 | 6:40 | 5:51 |
| 28 | 11.2 | 6:41 | 5:52 |
| 29 | 11.2 | 6:41 | 5:52 |
| 30 | 11.2 | 6:41 | 5:53 |
| 31 | 11.2 | 6:42 | 5:53 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 4.82 kWh/m².
For context, solar energy here swings from a low near 4.32 kWh/m² to a high of 5.95 kWh/m² in April across the year — December's 4.82 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 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 |
| 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 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.8 | Bright |
| 8 | 4.8 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.8 | Bright |
| 18 | 4.8 | Bright |
| 19 | 4.8 | Bright |
| 20 | 4.8 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.9 | Bright |
| 23 | 4.9 | Bright |
| 24 | 4.9 | Bright |
| 25 | 4.9 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.9 | Bright |
| 31 | 4.9 | Bright |
Hazard calendar for Si Mahosot
In December, Si Mahosot sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Si Mahosot sits in the Pacific typhoon belt; the season peaks July–October.
Si Mahosot's monsoon runs May–October, when most of the year's rain falls.
Is December a good time to visit Si Mahosot?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Si Mahosot for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Si Mahosot in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Si Mahosot sees daytime highs around 31°C and nights near 21°C. Pack light clothes. Worth having: sun protection.
UV index in Si Mahosot in December
Clear-sky midday UV in December 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 Si Mahosot peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 | 11 | 12 | 13 | 13 | 12 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 10 | Extreme |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 13 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Si Mahosot in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Si Mahosot is worst in February — around 60 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (December, 34 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) | 53 | 60 | 56 | 48 | 40 | 35 | 35 | 36 | 40 | 41 | 36 | 34 |
| Level | Poor | Unhealthy | Unhealthy | Poor | Poor | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 53 | Poor |
| Feb | 60 | Unhealthy |
| Mar | 56 | Unhealthy |
| Apr | 48 | Poor |
| May | 40 | Poor |
| Jun | 35 | Moderate |
| Jul | 35 | Poor |
| Aug | 36 | Poor |
| Sep | 40 | Poor |
| Oct | 41 | Poor |
| Nov | 36 | Poor |
| Dec | 34 | Moderate |
Where is Si Mahosot?
Si Mahosot sits at 13.9°N, 101.4°E, 10 m above sea level, in Thailand. The nearest listed city is Si Maha Phot, 15 km away.
Topography around Si Mahosot
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Si Mahosot.
Within 3 km, the terrain around Si Mahosot has only modest variations in elevation — a maximum elevation change of 27 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 61 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,411 m.
The land around Si Mahosot is covered by cropland (53%) and trees (26%) within 3 km, cropland (49%) and trees (23%) within 16 km, and trees (55%) and cropland (30%) 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 Si Mahosot (13.8878°, 101.405°, 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).