Kantharalak weather in September

In September, Kantharalak sees average daytime highs of 31°C and overnight lows near 25°C, with 247 mm of rain across 25.5 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 1st-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 3% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Kantharalak's 9th-clearest and 11th-windiest month. For the whole year in context, see Kantharalak's year-round climate.

Daytime high
31°
8th warmest
Overnight low
25°
7th coldest
Rainfall
247 mm
25.5 wet days
Daylight
12 h 06 min
5:53 AM – 5:58 PM
Cloud cover
87%
9th clearest
Wind
7 km/h
11th windiest
Solar energy
4.31 kWh/m²
Travel score
2.7
out of 10

Kantharalak is town in Si Sa Ket province, Thailand.

Founded
1956

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical September day in Kantharalak reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243124
253124
263124
273124
283124
293124
303124

How September really feels in Kantharalak

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.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kantharalak weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 19°41.111.25.7
Feb33° / 21°10211.54.5
Mar35° / 24°376.611.93.0
Apr35° / 26°781312.32.2
May34° / 26°15622.112.72.1
Jun33° / 26°16423.112.82.3
Jul32° / 25°19025.412.82.5
Aug31° / 25°21925.912.52.6
Sep31° / 25°24725.512.12.7
Oct31° / 23°12516.311.73.8
Nov31° / 22°395.211.35.2
Dec30° / 19°91.911.16.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2793
3793
4793
5793
6793
7793
8793
9793
10793
11793
12892
13892
14892
15991
16991
171090
181189
191288
201387
211387
221387
231486
241585
251684
261684
271684
281783
291783
301882

Chance of precipitation in September

Any precipitation

Kantharalak gets around 247 mm of rain over 25.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 85% and peaks near 87% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
186
286
386
486
586
686
786
887
987
1087
1187
1287
1387
1487
1587
1687
1786
1886
1985
2085
2184
2284
2383
2483
2582
2681
2781
2880
2979
3078

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 76% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
101981
201981
301981
402080
502080
602080
702080
802080
902179
1002179
1102179
1202179
1302179
1402278
1502278
1602377
1702377
1802476
1902476
2002575
2102575
2202674
2312673
2412772
2512871
2612970
2713069
2813168
2923266
3023365

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 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 24 minutes over September. Sunrise moves from 5:52 AM to 5:54 AM, and sunset from 6:10 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:526:10
212.35:536:09
312.35:536:08
412.25:536:07
512.25:536:07
612.25:536:06
712.25:536:05
812.25:536:04
912.25:536:04
1012.25:536:03
1112.25:536:02
1212.15:536:01
1312.15:536:01
1412.15:536:00
1512.15:535:59
1612.15:535:58
1712.15:535:57
1812.15:535:57
1912.05:535:56
2012.05:545:55
2112.05:545:54
2212.05:545:53
2312.05:545:53
2412.05:545:52
2512.05:545:51
2611.95:545:50
2711.95:545:50
2811.95:545:49
2911.95:545:48
3011.95:545:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.31 kWh/m² to a high of 6.09 kWh/m² in April across the year — September's 4.31 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Kantharalak

In seasonPeak

In September, Kantharalak sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Kantharalak's monsoon runs May–October, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Kantharalak?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.7
Sightseeing
7th-best month of the year
4.0
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Kantharalak.

What to pack for Kantharalak in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Kantharalak sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Kantharalak in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Kantharalak peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 13UV 14Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Kantharalak in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kantharalak is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (December, 15 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateMar 1759 µg/m³Dec 1315 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb42Poor
Mar61Unhealthy
Apr43Poor
May26Moderate
Jun20Moderate
Jul21Moderate
Aug21Moderate
Sep24Moderate
Oct24Moderate
Nov18Moderate
Dec15Moderate
Location & terrain

Where is Kantharalak?

Kantharalak sits at 14.6°N, 104.6°E, 160 m above sea level, in Thailand. The nearest listed city is Det Udom, 55 km away.

Tbeng MeancheySurin

Topography around Kantharalak

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kantharalak.

Within 3 km, the terrain around Kantharalak has only modest variations in elevation — a maximum elevation change of 42 m around an average of 155 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 149 m; within 80 km, large variations in elevation — a maximum elevation change of 707 m.

The land around Kantharalak is covered by trees (46%) and cropland (30%) within 3 km, cropland (56%) and trees (37%) within 16 km, and cropland (54%) and trees (40%) within 80 km.

3 km
42 m
16 km
149 m
80 km
707 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Det Udom 55 km · Si Sa Ket 63 km · Warin Chamrap 66 km · Ubon Ratchathani 70 km · Anlong Veaeng 76 km · Phibun Mangsahan 92 km · Tbeng Meanchey 99 km · Surin 127 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
Buddhist 93%Muslim 5%Christian 1%other 1%

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 Kantharalak (14.6406°, 104.6499°, elevation 160 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. 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).