Khlong Yai weather in September
In September, Khlong Yai sees average daytime highs of 29°C and overnight lows near 23°C, with 512 mm of rain across 29.6 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 3rd-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 1% of the time in September, and the air most often feels oppressive.
Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Khlong Yai's 12th-clearest and 4th-windiest month. For the whole year in context, see Khlong Yai's year-round climate.
- Daytime high
- 29°
- 10th warmest
- Overnight low
- 23°
- 7th coldest
- Rainfall
- 512 mm
- 29.6 wet days
- Daylight
- 12 h 06 min
- 6:01 AM – 6:05 PM
- Cloud cover
- 94%
- 12th clearest
- Wind
- 6 km/h
- 4th windiest
- Solar energy
- 3.92 kWh/m²
- Travel score
- 2.8
- out of 10
Khlong Yai is subdistrict municipality in Trat province, Thailand.
- Founded
- 1955
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Day-to-day highs hold fairly steady near 29°C through the month.
A typical September day in Khlong Yai reaches about 29°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| 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 | 28 | 23 |
| 9 | 28 | 23 |
| 10 | 28 | 23 |
| 11 | 28 | 23 |
| 12 | 28 | 23 |
| 13 | 28 | 23 |
| 14 | 28 | 23 |
| 15 | 28 | 23 |
| 16 | 28 | 23 |
| 17 | 28 | 23 |
| 18 | 28 | 23 |
| 19 | 28 | 23 |
| 20 | 29 | 23 |
| 21 | 29 | 23 |
| 22 | 29 | 23 |
| 23 | 29 | 23 |
| 24 | 29 | 23 |
| 25 | 29 | 23 |
| 26 | 29 | 23 |
| 27 | 29 | 23 |
| 28 | 29 | 23 |
| 29 | 29 | 23 |
| 30 | 29 | 23 |
How September really feels in Khlong Yai
Once humidity and wind are folded in, September averages 30 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Khlong Yai weather by month
How September compares with the rest of the year at a glance. September is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 31° / 21° | 56 | 9.5 | 11.4 | 4.6 |
| Feb | 31° / 22° | 78 | 13.3 | 11.6 | 4.2 |
| Mar | 31° / 23° | 159 | 21.9 | 11.9 | 3.4 |
| Apr | 31° / 24° | 215 | 26.3 | 12.3 | 2.7 |
| May | 30° / 24° | 337 | 29.6 | 12.5 | 2.6 |
| Jun | 29° / 24° | 471 | 29.1 | 12.7 | 2.8 |
| Jul | 28° / 24° | 582 | 30.4 | 12.6 | 2.9 |
| Aug | 28° / 24° | 583 | 30.6 | 12.4 | 2.9 |
| Sep | 29° / 23° | 512 | 29.6 | 12.1 | 2.8 |
| Oct | 30° / 23° | 375 | 27.3 | 11.7 | 3.0 |
| Nov | 31° / 22° | 115 | 14.7 | 11.5 | 4.0 |
| Dec | 31° / 22° | 38 | 6.7 | 11.3 | 4.8 |
Cloud cover in September
The sky is clear or mostly clear about 1% of the time in September, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 1% of September, with mostly cloudy or overcast conditions the remaining 98%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Cloudier (%) | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 | 97 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 1 | 99 |
| 2 | 1 | 99 |
| 3 | 1 | 99 |
| 4 | 1 | 99 |
| 5 | 1 | 99 |
| 6 | 1 | 99 |
| 7 | 1 | 99 |
| 8 | 1 | 99 |
| 9 | 1 | 99 |
| 10 | 1 | 99 |
| 11 | 1 | 99 |
| 12 | 1 | 99 |
| 13 | 1 | 99 |
| 14 | 1 | 99 |
| 15 | 1 | 99 |
| 16 | 2 | 98 |
| 17 | 3 | 97 |
| 18 | 3 | 97 |
| 19 | 3 | 97 |
| 20 | 3 | 97 |
| 21 | 3 | 97 |
| 22 | 3 | 97 |
| 23 | 3 | 97 |
| 24 | 3 | 97 |
| 25 | 3 | 97 |
| 26 | 3 | 97 |
| 27 | 3 | 97 |
| 28 | 3 | 97 |
| 29 | 3 | 97 |
| 30 | 3 | 97 |
Chance of precipitation in September
Khlong Yai gets around 512 mm of rain over 29.6 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 99% and peaks near 99% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 |
| Rain chance (%) | |
|---|---|
| 1 | 98 |
| 2 | 98 |
| 3 | 98 |
| 4 | 98 |
| 5 | 98 |
| 6 | 98 |
| 7 | 98 |
| 8 | 98 |
| 9 | 98 |
| 10 | 99 |
| 11 | 99 |
| 12 | 99 |
| 13 | 99 |
| 14 | 99 |
| 15 | 99 |
| 16 | 99 |
| 17 | 99 |
| 18 | 99 |
| 19 | 99 |
| 20 | 99 |
| 21 | 99 |
| 22 | 99 |
| 23 | 99 |
| 24 | 99 |
| 25 | 99 |
| 26 | 99 |
| 27 | 99 |
| 28 | 99 |
| 29 | 99 |
| 30 | 99 |
Humidity in September
Most of September feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the oppressive band about 73% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oppressive (%) | 61 | 62 | 63 | 64 | 65 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 73 | 74 | 75 | 76 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 78 | 78 | 78 | 78 | 79 | 79 |
| Miserable (%) | 39 | 38 | 37 | 36 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 21 | 21 |
| Oppressive (%) | Miserable (%) | |
|---|---|---|
| 1 | 61 | 39 |
| 2 | 62 | 38 |
| 3 | 63 | 37 |
| 4 | 64 | 36 |
| 5 | 65 | 35 |
| 6 | 67 | 33 |
| 7 | 68 | 32 |
| 8 | 69 | 31 |
| 9 | 70 | 30 |
| 10 | 71 | 29 |
| 11 | 72 | 28 |
| 12 | 73 | 27 |
| 13 | 73 | 27 |
| 14 | 74 | 26 |
| 15 | 75 | 25 |
| 16 | 76 | 24 |
| 17 | 76 | 24 |
| 18 | 77 | 23 |
| 19 | 77 | 23 |
| 20 | 77 | 23 |
| 21 | 77 | 23 |
| 22 | 77 | 23 |
| 23 | 77 | 23 |
| 24 | 77 | 23 |
| 25 | 78 | 22 |
| 26 | 78 | 22 |
| 27 | 78 | 22 |
| 28 | 78 | 22 |
| 29 | 79 | 21 |
| 30 | 79 | 21 |
Wind in September
Winds average 6 km/h in September.
Across September, daily wind ranges from about 5 km/h on the calmest days to 7 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 18 minutes over September. Sunrise moves from 6:01 AM to 6:01 AM, and sunset from 6:15 PM to 5:55 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 |
| Sunrise (AM) | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 | 6:01 |
| Sunset (PM) | 6:15 | 6:14 | 6:14 | 6:13 | 6:12 | 6:12 | 6:11 | 6:10 | 6:10 | 6:09 | 6:08 | 6:08 | 6:07 | 6:06 | 6:05 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:01 | 6:00 | 6:00 | 5:59 | 5:58 | 5:58 | 5:57 | 5:56 | 5:56 | 5:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.2 | 6:01 | 6:15 |
| 2 | 12.2 | 6:01 | 6:14 |
| 3 | 12.2 | 6:01 | 6:14 |
| 4 | 12.2 | 6:01 | 6:13 |
| 5 | 12.2 | 6:01 | 6:12 |
| 6 | 12.2 | 6:01 | 6:12 |
| 7 | 12.2 | 6:01 | 6:11 |
| 8 | 12.2 | 6:01 | 6:10 |
| 9 | 12.1 | 6:01 | 6:10 |
| 10 | 12.1 | 6:01 | 6:09 |
| 11 | 12.1 | 6:01 | 6:08 |
| 12 | 12.1 | 6:01 | 6:08 |
| 13 | 12.1 | 6:01 | 6:07 |
| 14 | 12.1 | 6:01 | 6:06 |
| 15 | 12.1 | 6:01 | 6:05 |
| 16 | 12.1 | 6:01 | 6:05 |
| 17 | 12.1 | 6:01 | 6:04 |
| 18 | 12.0 | 6:01 | 6:03 |
| 19 | 12.0 | 6:01 | 6:03 |
| 20 | 12.0 | 6:01 | 6:02 |
| 21 | 12.0 | 6:01 | 6:01 |
| 22 | 12.0 | 6:01 | 6:00 |
| 23 | 12.0 | 6:01 | 6:00 |
| 24 | 12.0 | 6:01 | 5:59 |
| 25 | 12.0 | 6:01 | 5:58 |
| 26 | 12.0 | 6:01 | 5:58 |
| 27 | 11.9 | 6:01 | 5:57 |
| 28 | 11.9 | 6:01 | 5:56 |
| 29 | 11.9 | 6:01 | 5:56 |
| 30 | 11.9 | 6:01 | 5:55 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 5.74 kWh/m² in March across the year — September's 3.92 kWh/m² sits near the bottom.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 4.0 | 4.0 | 4.0 |
| Level | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.1 | Bright |
| 3 | 4.0 | Bright |
| 4 | 4.0 | Bright |
| 5 | 4.0 | Bright |
| 6 | 4.0 | Moderate |
| 7 | 4.0 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 3.9 | Moderate |
| 10 | 3.9 | Moderate |
| 11 | 3.9 | Moderate |
| 12 | 3.9 | Moderate |
| 13 | 3.9 | Moderate |
| 14 | 3.8 | Moderate |
| 15 | 3.8 | Moderate |
| 16 | 3.8 | Moderate |
| 17 | 3.8 | Moderate |
| 18 | 3.8 | Moderate |
| 19 | 3.8 | Moderate |
| 20 | 3.8 | Moderate |
| 21 | 3.8 | Moderate |
| 22 | 3.9 | Moderate |
| 23 | 3.9 | Moderate |
| 24 | 3.9 | Moderate |
| 25 | 3.9 | Moderate |
| 26 | 3.9 | Moderate |
| 27 | 3.9 | Moderate |
| 28 | 4.0 | Moderate |
| 29 | 4.0 | Moderate |
| 30 | 4.0 | Moderate |
Hazard calendar for Khlong Yai
In September, Khlong Yai sits inside its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Khlong Yai sits in the Pacific typhoon belt; the season peaks July–October.
Khlong Yai's monsoon runs May–October, when most of the year's rain falls.
Is September a good time to visit Khlong Yai?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a weaker month for outdoor sightseeing in Khlong Yai.
What to pack for Khlong Yai in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Khlong Yai sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 30 days see rain.
Sea temperature near Khlong Yai in September
The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore 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 | 29 | 29 | 30 | 31 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 29 | Tropical |
| 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 | 29 | Tropical |
UV index in Khlong Yai in September
Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Khlong Yai peaks around August 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 | 13 | 12 | 12 | 12 | 12 | 14 | 13 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 11 | Extreme |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Khlong Yai in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Khlong Yai is worst in February — around 40 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (November, 11 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) | 28 | 40 | 27 | 19 | 13 | 12 | 13 | 12 | 11 | 11 | 11 | 12 |
| Level | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 28 | Moderate |
| Feb | 40 | Poor |
| Mar | 27 | Moderate |
| Apr | 19 | Moderate |
| May | 13 | Moderate |
| Jun | 12 | Moderate |
| Jul | 13 | Moderate |
| Aug | 12 | Good |
| Sep | 11 | Good |
| Oct | 11 | Good |
| Nov | 11 | Good |
| Dec | 12 | Good |
Where is Khlong Yai?
Khlong Yai sits at 11.8°N, 102.9°E, 45 m above sea level, in Thailand. The nearest listed city is Koh Kong, 21 km away.
Topography around Khlong Yai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Khlong Yai.
Within 3 km, the terrain around Khlong Yai has significant variations in elevation — a maximum elevation change of 324 m around an average of 57 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 741 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,728 m.
The land around Khlong Yai is covered by trees (52%) and water (34%) within 3 km, trees (49%) and water (44%) within 16 km, and trees (52%) and water (42%) 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 Khlong Yai (11.7765°, 102.8873°, elevation 45 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).