Hat Yai weather in January
In January, Hat Yai sees average daytime highs of 30°C and overnight lows near 24°C, with 88 mm of rain across 12.3 wet days and about 11.6 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 18% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 11 h 36 min at the start of January to 11 h 42 min by month's end. Set against the rest of the year, January is Hat Yai's 3rd-clearest and 1st-windiest month. For the whole year in context, see Hat Yai's year-round climate.
- Daytime high
- 30°
- 10th warmest
- Overnight low
- 24°
- 2nd coldest
- Rainfall
- 88 mm
- 12.3 wet days
- Daylight
- 11 h 36 min
- 6:38 AM – 6:16 PM
- Cloud cover
- 68%
- 3rd clearest
- Wind
- 11 km/h
- 1st windiest
- Solar energy
- 5.13 kWh/m²
- Travel score
- 4.5
- out of 10
Hat Yai is city in Songkhla province, Thailand.
- Density
- 9,128/km²
- people per km²
- Founded
- 1935
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 30°C through the month.
A typical January day in Hat Yai reaches about 30°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 32°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C cooler than 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 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 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 | 24 |
| 2 | 30 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 24 |
| 11 | 30 | 24 |
| 12 | 30 | 24 |
| 13 | 30 | 24 |
| 14 | 30 | 24 |
| 15 | 30 | 24 |
| 16 | 30 | 24 |
| 17 | 30 | 24 |
| 18 | 30 | 24 |
| 19 | 30 | 24 |
| 20 | 30 | 24 |
| 21 | 30 | 24 |
| 22 | 30 | 24 |
| 23 | 30 | 24 |
| 24 | 30 | 24 |
| 25 | 31 | 24 |
| 26 | 31 | 24 |
| 27 | 31 | 24 |
| 28 | 31 | 24 |
| 29 | 31 | 24 |
| 30 | 31 | 24 |
| 31 | 31 | 24 |
How January really feels in Hat Yai
Once humidity and wind are folded in, January 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 January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Hat Yai weather by month
How January compares with the rest of the year at a glance. January is the 10th-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 | 30° / 24° | 88 | 12.3 | 11.6 | 4.5 |
| Feb | 31° / 24° | 43 | 7.1 | 11.8 | 4.4 |
| Mar | 33° / 24° | 94 | 12.6 | 12 | 3.4 |
| Apr | 33° / 25° | 136 | 19.3 | 12.1 | 2.6 |
| May | 33° / 25° | 150 | 23.5 | 12.3 | 2.3 |
| Jun | 33° / 25° | 114 | 19.4 | 12.4 | 2.7 |
| Jul | 33° / 25° | 115 | 19.8 | 12.4 | 2.8 |
| Aug | 33° / 25° | 121 | 20.8 | 12.2 | 2.7 |
| Sep | 32° / 25° | 164 | 24.1 | 12 | 2.5 |
| Oct | 31° / 24° | 285 | 28.1 | 11.8 | 2.5 |
| Nov | 30° / 24° | 347 | 27.3 | 11.7 | 2.9 |
| Dec | 29° / 24° | 277 | 21.9 | 11.6 | 3.7 |
Cloud cover in January
The sky is clear or mostly clear about 18% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 62%. 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 (%) | 28 | 30 | 31 | 32 | 33 | 35 | 35 | 37 | 37 | 38 | 38 | 38 | 38 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 41 | 41 | 41 | 41 | 42 | 42 | 43 | 44 |
| Cloudier (%) | 72 | 70 | 69 | 68 | 67 | 65 | 65 | 63 | 63 | 62 | 62 | 62 | 62 | 61 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 61 | 61 | 59 | 59 | 59 | 59 | 58 | 58 | 57 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 28 | 72 |
| 2 | 30 | 70 |
| 3 | 31 | 69 |
| 4 | 32 | 68 |
| 5 | 33 | 67 |
| 6 | 35 | 65 |
| 7 | 35 | 65 |
| 8 | 37 | 63 |
| 9 | 37 | 63 |
| 10 | 38 | 62 |
| 11 | 38 | 62 |
| 12 | 38 | 62 |
| 13 | 38 | 62 |
| 14 | 39 | 61 |
| 15 | 40 | 60 |
| 16 | 40 | 60 |
| 17 | 40 | 60 |
| 18 | 40 | 60 |
| 19 | 40 | 60 |
| 20 | 40 | 60 |
| 21 | 40 | 60 |
| 22 | 39 | 61 |
| 23 | 39 | 61 |
| 24 | 41 | 59 |
| 25 | 41 | 59 |
| 26 | 41 | 59 |
| 27 | 41 | 59 |
| 28 | 42 | 58 |
| 29 | 42 | 58 |
| 30 | 43 | 57 |
| 31 | 44 | 56 |
Chance of precipitation in January
Hat Yai gets around 88 mm of rain over 12.3 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 40% and peaks near 54% 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 (%) | 54 | 53 | 52 | 51 | 50 | 49 | 47 | 46 | 45 | 44 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 30 | 29 |
| Rain chance (%) | |
|---|---|
| 1 | 54 |
| 2 | 53 |
| 3 | 52 |
| 4 | 51 |
| 5 | 50 |
| 6 | 49 |
| 7 | 47 |
| 8 | 46 |
| 9 | 45 |
| 10 | 44 |
| 11 | 42 |
| 12 | 41 |
| 13 | 40 |
| 14 | 39 |
| 15 | 38 |
| 16 | 37 |
| 17 | 36 |
| 18 | 36 |
| 19 | 35 |
| 20 | 35 |
| 21 | 35 |
| 22 | 34 |
| 23 | 34 |
| 24 | 34 |
| 25 | 33 |
| 26 | 33 |
| 27 | 32 |
| 28 | 32 |
| 29 | 31 |
| 30 | 30 |
| 31 | 29 |
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 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Muggy (%) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 |
| Oppressive (%) | 75 | 75 | 76 | 77 | 77 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 75 | 75 | 74 | 75 | 75 | 75 | 75 | 75 | 76 | 76 | 77 |
| Miserable (%) | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 |
| Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|
| 1 | 5 | 75 | 20 |
| 2 | 5 | 75 | 20 |
| 3 | 5 | 76 | 19 |
| 4 | 5 | 77 | 18 |
| 5 | 5 | 77 | 18 |
| 6 | 5 | 78 | 17 |
| 7 | 5 | 78 | 17 |
| 8 | 5 | 78 | 17 |
| 9 | 5 | 78 | 17 |
| 10 | 6 | 78 | 16 |
| 11 | 6 | 78 | 16 |
| 12 | 6 | 78 | 16 |
| 13 | 7 | 77 | 16 |
| 14 | 7 | 77 | 16 |
| 15 | 7 | 77 | 16 |
| 16 | 8 | 77 | 15 |
| 17 | 8 | 77 | 15 |
| 18 | 9 | 76 | 15 |
| 19 | 9 | 76 | 15 |
| 20 | 9 | 76 | 15 |
| 21 | 10 | 75 | 15 |
| 22 | 10 | 75 | 15 |
| 23 | 11 | 74 | 15 |
| 24 | 11 | 75 | 14 |
| 25 | 11 | 75 | 14 |
| 26 | 11 | 75 | 14 |
| 27 | 12 | 75 | 13 |
| 28 | 12 | 75 | 13 |
| 29 | 12 | 76 | 12 |
| 30 | 12 | 76 | 12 |
| 31 | 12 | 77 | 11 |
Wind in January
Winds average 11 km/h in January, the windiest month of the year.
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 | 11 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 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 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | 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 36 min at the start of January to 11 h 42 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 6:33 AM to 6:41 AM, and sunset from 6:09 PM to 6:22 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) | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 |
| Sunrise (AM) | 6:33 | 6:34 | 6:34 | 6:34 | 6:35 | 6:35 | 6:36 | 6:36 | 6:36 | 6:37 | 6:37 | 6:37 | 6:38 | 6:38 | 6:38 | 6:38 | 6:39 | 6:39 | 6:39 | 6:39 | 6:39 | 6:40 | 6:40 | 6:40 | 6:40 | 6:40 | 6:40 | 6:40 | 6:41 | 6:41 | 6:41 |
| Sunset (PM) | 6:09 | 6:10 | 6:10 | 6:11 | 6:11 | 6:12 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.6 | 6:33 | 6:09 |
| 2 | 11.6 | 6:34 | 6:10 |
| 3 | 11.6 | 6:34 | 6:10 |
| 4 | 11.6 | 6:34 | 6:11 |
| 5 | 11.6 | 6:35 | 6:11 |
| 6 | 11.6 | 6:35 | 6:12 |
| 7 | 11.6 | 6:36 | 6:12 |
| 8 | 11.6 | 6:36 | 6:13 |
| 9 | 11.6 | 6:36 | 6:13 |
| 10 | 11.6 | 6:37 | 6:14 |
| 11 | 11.6 | 6:37 | 6:14 |
| 12 | 11.6 | 6:37 | 6:15 |
| 13 | 11.6 | 6:38 | 6:15 |
| 14 | 11.6 | 6:38 | 6:15 |
| 15 | 11.6 | 6:38 | 6:16 |
| 16 | 11.6 | 6:38 | 6:16 |
| 17 | 11.6 | 6:39 | 6:17 |
| 18 | 11.6 | 6:39 | 6:17 |
| 19 | 11.6 | 6:39 | 6:18 |
| 20 | 11.6 | 6:39 | 6:18 |
| 21 | 11.7 | 6:39 | 6:19 |
| 22 | 11.7 | 6:40 | 6:19 |
| 23 | 11.7 | 6:40 | 6:19 |
| 24 | 11.7 | 6:40 | 6:20 |
| 25 | 11.7 | 6:40 | 6:20 |
| 26 | 11.7 | 6:40 | 6:20 |
| 27 | 11.7 | 6:40 | 6:21 |
| 28 | 11.7 | 6:40 | 6:21 |
| 29 | 11.7 | 6:41 | 6:22 |
| 30 | 11.7 | 6:41 | 6:22 |
| 31 | 11.7 | 6:41 | 6:22 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.13 kWh/m².
For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 6.21 kWh/m² in March across the year — January's 5.13 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) | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.4 | 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 | 4.6 | Bright |
| 2 | 4.6 | Bright |
| 3 | 4.7 | Bright |
| 4 | 4.7 | Bright |
| 5 | 4.7 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.8 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | 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 | 5.4 | Bright |
| 27 | 5.5 | Bright |
| 28 | 5.5 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.6 | Bright |
Hazard calendar for Hat Yai
In January, Hat Yai sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Hat Yai sits in the Pacific typhoon belt; the season peaks July–October.
Hat Yai's rainy season runs September–December, when most of the year's rain falls.
Is January a good time to visit Hat Yai?
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 Hat Yai for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Hat Yai in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, Hat Yai sees daytime highs around 30°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.
Sea temperature near Hat Yai in January
The nearest coast averages about 28°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 31°C and coldest in January near 28°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) | 28 | 28 | 29 | 30 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | Tropical |
| Jun | 31 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Hat Yai 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 Hat Yai peaks around February 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 11 (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 | 14 | 13 | 13 | 13 | 12 | 11 | 13 | 13 | 12 | 11 | 11 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 11 | Extreme |
Air quality in Hat Yai 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 Hat Yai is worst in October — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
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 | 21 | 27 | 26 | 27 | 26 | 24 | 26 | 27 | 23 | 18 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 27 | Moderate |
| May | 26 | Moderate |
| Jun | 27 | Moderate |
| Jul | 26 | Moderate |
| Aug | 24 | Moderate |
| Sep | 26 | Moderate |
| Oct | 27 | Moderate |
| Nov | 23 | Moderate |
| Dec | 18 | Moderate |
Where is Hat Yai?
Hat Yai sits at 7.0°N, 100.5°E, 12 m above sea level, in Thailand. The nearest listed city is Ban Mai, 23 km away.
Topography around Hat Yai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hat Yai.
Within 3 km, the terrain around Hat Yai has only modest variations in elevation — a maximum elevation change of 65 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 418 m; within 80 km, large variations in elevation — a maximum elevation change of 1,146 m.
The land around Hat Yai is covered by artificial surfaces (67%) and trees (26%) within 3 km, trees (74%) within 16 km, and trees (61%) and water (29%) 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 Hat Yai (7.0084°, 100.4767°, elevation 12 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).