Samut Sakhon weather in January
In January, Samut Sakhon sees average daytime highs of 29°C and overnight lows near 24°C, with 15 mm of rain across 2.7 wet days and about 11.3 hours of daylight. It is the 12th-warmest and 10th-wettest month of the year here.
Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 58% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 11 h 12 min at the start of January to 11 h 24 min by month's end. Set against the rest of the year, January is Samut Sakhon's 3rd-clearest and 10th-windiest month. For the whole year in context, see Samut Sakhon's year-round climate.
- Daytime high
- 29°
- 12th warmest
- Overnight low
- 24°
- 1st coldest
- Rainfall
- 15 mm
- 2.7 wet days
- Daylight
- 11 h 18 min
- 6:50 AM – 6:07 PM
- Cloud cover
- 39%
- 3rd clearest
- Wind
- 10 km/h
- 10th windiest
- Solar energy
- 5.08 kWh/m²
- Travel score
- 6.5
- out of 10
Samut Sakhon is city in Samut Sakhon province, Thailand.
- Air quality
- High
- PM2.5 29 µg/m³ · 2019
- Density
- 6,147/km²
- people per km²
- Founded
- 1548
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 29°C through the month.
A typical January day in Samut Sakhon reaches about 29°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°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) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 23 |
| 2 | 29 | 23 |
| 3 | 29 | 23 |
| 4 | 29 | 23 |
| 5 | 29 | 23 |
| 6 | 29 | 23 |
| 7 | 29 | 23 |
| 8 | 29 | 24 |
| 9 | 29 | 24 |
| 10 | 29 | 24 |
| 11 | 29 | 24 |
| 12 | 29 | 24 |
| 13 | 29 | 24 |
| 14 | 29 | 24 |
| 15 | 29 | 24 |
| 16 | 29 | 24 |
| 17 | 29 | 24 |
| 18 | 29 | 24 |
| 19 | 29 | 24 |
| 20 | 29 | 24 |
| 21 | 29 | 24 |
| 22 | 29 | 24 |
| 23 | 29 | 24 |
| 24 | 29 | 24 |
| 25 | 29 | 24 |
| 26 | 29 | 24 |
| 27 | 29 | 24 |
| 28 | 30 | 24 |
| 29 | 30 | 24 |
| 30 | 30 | 24 |
| 31 | 30 | 24 |
How January really feels in Samut Sakhon
Once humidity and wind are folded in, January averages 2 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Samut Sakhon weather by month
How January compares with the rest of the year at a glance. January is the 12th-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 | 29° / 24° | 15 | 2.7 | 11.3 | 6.5 |
| Feb | 30° / 25° | 12 | 2.6 | 11.5 | 6.2 |
| Mar | 31° / 27° | 43 | 6.4 | 11.9 | 5.2 |
| Apr | 32° / 28° | 74 | 9.7 | 12.3 | 4.1 |
| May | 32° / 28° | 137 | 20.4 | 12.6 | 3.0 |
| Jun | 31° / 28° | 111 | 20.8 | 12.8 | 2.9 |
| Jul | 31° / 27° | 114 | 21 | 12.7 | 3.1 |
| Aug | 31° / 27° | 125 | 22.1 | 12.5 | 3.1 |
| Sep | 30° / 27° | 219 | 24.5 | 12.1 | 2.9 |
| Oct | 30° / 26° | 227 | 21.5 | 11.7 | 3.6 |
| Nov | 30° / 25° | 50 | 6.7 | 11.4 | 5.2 |
| Dec | 30° / 24° | 11 | 2.2 | 11.2 | 6.3 |
Cloud cover in January
The sky is clear or mostly clear about 58% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 26%. 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 (%) | 71 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 72 | 73 | 73 | 74 | 75 | 75 | 75 | 76 | 76 | 76 | 78 | 78 | 78 | 79 | 81 | 81 | 81 |
| Cloudier (%) | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 22 | 22 | 22 | 21 | 19 | 19 | 19 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 71 | 29 |
| 2 | 71 | 29 |
| 3 | 71 | 29 |
| 4 | 71 | 29 |
| 5 | 71 | 29 |
| 6 | 72 | 28 |
| 7 | 72 | 28 |
| 8 | 72 | 28 |
| 9 | 72 | 28 |
| 10 | 72 | 28 |
| 11 | 72 | 28 |
| 12 | 72 | 28 |
| 13 | 72 | 28 |
| 14 | 72 | 28 |
| 15 | 72 | 28 |
| 16 | 73 | 27 |
| 17 | 73 | 27 |
| 18 | 74 | 26 |
| 19 | 75 | 25 |
| 20 | 75 | 25 |
| 21 | 75 | 25 |
| 22 | 76 | 24 |
| 23 | 76 | 24 |
| 24 | 76 | 24 |
| 25 | 78 | 22 |
| 26 | 78 | 22 |
| 27 | 78 | 22 |
| 28 | 79 | 21 |
| 29 | 81 | 19 |
| 30 | 81 | 19 |
| 31 | 81 | 19 |
Chance of precipitation in January
Samut Sakhon gets around 15 mm of rain over 2.7 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 9% and peaks near 10% 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 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Rain chance (%) | |
|---|---|
| 1 | 6 |
| 2 | 7 |
| 3 | 7 |
| 4 | 7 |
| 5 | 8 |
| 6 | 8 |
| 7 | 8 |
| 8 | 9 |
| 9 | 9 |
| 10 | 9 |
| 11 | 10 |
| 12 | 10 |
| 13 | 10 |
| 14 | 9 |
| 15 | 9 |
| 16 | 9 |
| 17 | 9 |
| 18 | 9 |
| 19 | 9 |
| 20 | 9 |
| 21 | 9 |
| 22 | 9 |
| 23 | 9 |
| 24 | 9 |
| 25 | 9 |
| 26 | 9 |
| 27 | 9 |
| 28 | 9 |
| 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 42% of days. Sticky, muggy-or-worse air turns up on roughly 78% 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 (%) | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Comfortable (%) | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 |
| Humid (%) | 23 | 23 | 22 | 22 | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 |
| Muggy (%) | 30 | 30 | 30 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 23 |
| Oppressive (%) | 33 | 34 | 35 | 36 | 37 | 38 | 40 | 41 | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 |
| Miserable (%) | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 15 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 4 | 7 | 23 | 30 | 33 | 3 |
| 2 | 3 | 6 | 23 | 30 | 34 | 4 |
| 3 | 3 | 6 | 22 | 30 | 35 | 4 |
| 4 | 3 | 5 | 22 | 29 | 36 | 4 |
| 5 | 3 | 5 | 21 | 29 | 37 | 5 |
| 6 | 3 | 5 | 21 | 29 | 38 | 5 |
| 7 | 2 | 5 | 20 | 28 | 40 | 5 |
| 8 | 2 | 5 | 19 | 27 | 41 | 6 |
| 9 | 2 | 5 | 19 | 26 | 42 | 6 |
| 10 | 2 | 5 | 18 | 26 | 43 | 7 |
| 11 | 2 | 5 | 17 | 25 | 43 | 7 |
| 12 | 2 | 5 | 17 | 24 | 44 | 8 |
| 13 | 2 | 5 | 16 | 24 | 44 | 9 |
| 14 | 2 | 6 | 15 | 24 | 44 | 9 |
| 15 | 2 | 6 | 15 | 24 | 44 | 10 |
| 16 | 2 | 6 | 14 | 24 | 44 | 10 |
| 17 | 2 | 6 | 13 | 24 | 44 | 11 |
| 18 | 2 | 5 | 13 | 24 | 44 | 11 |
| 19 | 2 | 5 | 12 | 25 | 44 | 12 |
| 20 | 2 | 5 | 12 | 25 | 44 | 12 |
| 21 | 2 | 5 | 11 | 25 | 44 | 12 |
| 22 | 2 | 5 | 11 | 25 | 44 | 13 |
| 23 | 2 | 5 | 11 | 26 | 44 | 13 |
| 24 | 2 | 4 | 10 | 26 | 44 | 13 |
| 25 | 2 | 4 | 10 | 26 | 44 | 14 |
| 26 | 2 | 4 | 10 | 26 | 44 | 14 |
| 27 | 2 | 4 | 10 | 25 | 44 | 14 |
| 28 | 2 | 4 | 10 | 25 | 44 | 14 |
| 29 | 2 | 4 | 10 | 24 | 44 | 15 |
| 30 | 2 | 5 | 11 | 24 | 44 | 15 |
| 31 | 2 | 5 | 11 | 23 | 43 | 15 |
Wind in January
Winds average 10 km/h in January.
Across January, daily wind ranges from about 10 km/h on the calmest days to 11 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in January
Daylight runs from about 11 h 12 min at the start of January to 11 h 24 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 6:46 AM to 6:50 AM, and sunset from 5:58 PM to 6:14 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 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 |
| Sunrise (AM) | 6:46 | 6:46 | 6:46 | 6:47 | 6:47 | 6:47 | 6:48 | 6:48 | 6:48 | 6:49 | 6:49 | 6:49 | 6:49 | 6:49 | 6:50 | 6:50 | 6:50 | 6:50 | 6:50 | 6:50 | 6:50 | 6:50 | 6:50 | 6:51 | 6:51 | 6:51 | 6:51 | 6:51 | 6:50 | 6:50 | 6:50 |
| Sunset (PM) | 5:58 | 5:59 | 6:00 | 6:00 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:03 | 6:04 | 6:04 | 6:05 | 6:06 | 6:06 | 6:07 | 6:07 | 6:08 | 6:08 | 6:09 | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 | 6:12 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.2 | 6:46 | 5:58 |
| 2 | 11.2 | 6:46 | 5:59 |
| 3 | 11.2 | 6:46 | 6:00 |
| 4 | 11.2 | 6:47 | 6:00 |
| 5 | 11.2 | 6:47 | 6:01 |
| 6 | 11.2 | 6:47 | 6:01 |
| 7 | 11.2 | 6:48 | 6:02 |
| 8 | 11.2 | 6:48 | 6:02 |
| 9 | 11.2 | 6:48 | 6:03 |
| 10 | 11.2 | 6:49 | 6:03 |
| 11 | 11.3 | 6:49 | 6:04 |
| 12 | 11.3 | 6:49 | 6:04 |
| 13 | 11.3 | 6:49 | 6:05 |
| 14 | 11.3 | 6:49 | 6:06 |
| 15 | 11.3 | 6:50 | 6:06 |
| 16 | 11.3 | 6:50 | 6:07 |
| 17 | 11.3 | 6:50 | 6:07 |
| 18 | 11.3 | 6:50 | 6:08 |
| 19 | 11.3 | 6:50 | 6:08 |
| 20 | 11.3 | 6:50 | 6:09 |
| 21 | 11.3 | 6:50 | 6:09 |
| 22 | 11.3 | 6:50 | 6:10 |
| 23 | 11.3 | 6:50 | 6:10 |
| 24 | 11.3 | 6:51 | 6:11 |
| 25 | 11.3 | 6:51 | 6:11 |
| 26 | 11.4 | 6:51 | 6:12 |
| 27 | 11.4 | 6:51 | 6:12 |
| 28 | 11.4 | 6:51 | 6:13 |
| 29 | 11.4 | 6:50 | 6:13 |
| 30 | 11.4 | 6:50 | 6:14 |
| 31 | 11.4 | 6:50 | 6:14 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.08 kWh/m².
For context, solar energy here swings from a low near 4.6 kWh/m² to a high of 6.33 kWh/m² in April across the year — January's 5.08 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) | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 |
| 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 | 4.9 | Bright |
| 2 | 4.9 | Bright |
| 3 | 4.9 | Bright |
| 4 | 5.0 | Bright |
| 5 | 5.0 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.0 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.1 | Bright |
| 19 | 5.1 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
| 31 | 5.4 | Bright |
Hazard calendar for Samut Sakhon
In January, Samut Sakhon sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Samut Sakhon sits in the Pacific typhoon belt; the season peaks July–October.
Samut Sakhon's monsoon runs May–October, when most of the year's rain falls.
Is January a good time to visit Samut Sakhon?
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 Samut Sakhon for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Samut Sakhon in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Samut Sakhon sees daytime highs around 29°C and nights near 24°C. Pack light clothes. Worth having: sun protection.
Sea temperature near Samut Sakhon 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 22 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 | 30 | 30 | 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 | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Samut Sakhon 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 Samut Sakhon peaks around August 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 8 (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 | 9 | 12 | 12 | 11 | 12 | 12 | 13 | 12 | 9 | 8 | 8 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 9 | Very high |
| Mar | 12 | Extreme |
| Apr | 12 | Extreme |
| May | 11 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 9 | Very high |
| Nov | 8 | Very high |
| Dec | 8 | Very high |
Air quality in Samut Sakhon 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 Samut Sakhon is worst in January — around 45 µg/m³ PM2.5 (poor), about 2.5× the cleanest month (August, 18 µg/m³).
Seasonal pattern from CAMS reanalysis, scaled to Samut Sakhon's WHO annual average of 29 µg/m³.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 45 | 38 | 27 | 24 | 21 | 18 | 18 | 18 | 23 | 34 | 40 | 40 |
| Level | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 45 | Poor |
| Feb | 38 | Poor |
| Mar | 27 | Moderate |
| Apr | 24 | Moderate |
| May | 21 | Moderate |
| Jun | 18 | Moderate |
| Jul | 18 | Moderate |
| Aug | 18 | Moderate |
| Sep | 23 | Moderate |
| Oct | 34 | Moderate |
| Nov | 40 | Poor |
| Dec | 40 | Poor |
Where is Samut Sakhon?
Samut Sakhon sits at 13.5°N, 100.3°E, 14 m above sea level, in Thailand. The nearest listed city is Krathum Baen, 12 km away.
Topography around Samut Sakhon
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Samut Sakhon.
Within 3 km, the terrain around Samut Sakhon has only modest variations in elevation — a maximum elevation change of 16 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 42 m; within 80 km, large variations in elevation — a maximum elevation change of 638 m.
The land around Samut Sakhon is covered by artificial surfaces (57%) and trees (22%) within 3 km, water (41%), trees (22%) and artificial surfaces (20%) within 16 km, and water (34%), cropland (25%) and trees (20%) 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 Samut Sakhon (13.5475°, 100.2736°, elevation 14 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).