Phibun Mangsahan weather in September

In September, Phibun Mangsahan sees average daytime highs of 31°C and overnight lows near 25°C, with 282 mm of rain across 26.6 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 3rd-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 4% 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 Phibun Mangsahan's 9th-clearest and 12th-windiest month. For the whole year in context, see Phibun Mangsahan's year-round climate.

Daytime high
31°
11th warmest
Overnight low
25°
7th coldest
Rainfall
282 mm
26.6 wet days
Daylight
12 h 06 min
5:51 AM – 5:56 PM
Cloud cover
86%
9th clearest
Wind
7 km/h
12th windiest
Solar energy
4.24 kWh/m²
Travel score
2.6
out of 10

Phibun Mangsahan is town in Ubon Ratchathani province, Thailand.

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 Phibun Mangsahan 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
243125
253125
263125
273125
283125
293125
303125

How September really feels in Phibun Mangsahan

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.

Phibun Mangsahan weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 3rd-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°71.611.54.5
Mar35° / 24°315.511.93.1
Apr35° / 26°7512.312.32.4
May34° / 26°18723.312.72.1
Jun32° / 26°23225.312.92.3
Jul31° / 25°30127.812.82.4
Aug31° / 25°32028.712.52.5
Sep31° / 25°28226.612.12.6
Oct31° / 24°12515.311.73.9
Nov31° / 22°354.411.35.2
Dec30° / 20°71.311.16.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3793
4793
5793
6793
7793
8793
9892
10892
11892
12991
13991
141090
151090
161189
171288
181387
191486
201486
211585
221684
231684
241684
251684
261882
271882
281882
291981
301981

Chance of precipitation in September

Any precipitation

Phibun Mangsahan gets around 282 mm of rain over 26.6 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 88% and peaks near 91% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
191
291
391
490
590
690
790
890
990
1090
1190
1291
1391
1491
1590
1690
1790
1889
1989
2088
2188
2287
2386
2486
2585
2684
2783
2882
2981
3080

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10991
20991
30991
40991
501090
601090
701090
801189
901189
1001288
1101288
1201387
1301486
1401486
1501585
1601684
1701783
1801882
1901882
2001981
2112079
2212178
2312178
2412277
2512376
2612475
2722474
2822573
2922672
3032770

Wind in September

Winds average 7 km/h in September, the calmest month.

Across September, daily wind ranges from about 7 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
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 5:50 AM to 5:52 AM, and sunset from 6:08 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:506:08
212.35:506:07
312.35:506:06
412.35:506:06
512.25:506:05
612.25:506:04
712.25:506:03
812.25:506:02
912.25:506:02
1012.25:506:01
1112.25:516:00
1212.15:515:59
1312.15:515:58
1412.15:515:58
1512.15:515:57
1612.15:515:56
1712.15:515:55
1812.15:515:54
1912.05:515:54
2012.05:515:53
2112.05:515:52
2212.05:515:51
2312.05:515:50
2412.05:515:49
2512.05:525:49
2611.95:525:48
2711.95:525:47
2811.95:525:46
2911.95:525:46
3011.95:525:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.24 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.24 kWh/m² to a high of 6.12 kWh/m² in April across the year — September's 4.24 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Phibun Mangsahan

In seasonPeak

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

Phibun Mangsahan's monsoon runs May–September, 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 Phibun Mangsahan?

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

2.6
Sightseeing
7th-best month of the year
3.9
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Phibun Mangsahan.

What to pack for Phibun Mangsahan in September

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

In September, Phibun Mangsahan sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

UV index in Phibun Mangsahan 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 Phibun Mangsahan peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 12UV 13Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Phibun Mangsahan 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 Phibun Mangsahan 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 Phibun Mangsahan?

Phibun Mangsahan sits at 15.2°N, 105.2°E, 127 m above sea level, in Thailand. The nearest listed city is Warin Chamrap, 40 km away.

Amnat CharoenSi Sa Ket

Topography around Phibun Mangsahan

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

Within 3 km, the terrain around Phibun Mangsahan has only modest variations in elevation — a maximum elevation change of 49 m around an average of 124 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 54 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,332 m.

The land around Phibun Mangsahan is covered by trees (43%) and cropland (27%) within 3 km, cropland (66%) and trees (23%) within 16 km, and cropland (53%) and trees (37%) within 80 km.

3 km
49 m
16 km
54 m
80 km
1,332 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Warin Chamrap 40 km · Ubon Ratchathani 41 km · Det Udom 41 km · Pakse 63 km · Champasak 80 km · Kantharalak 92 km · Amnat Charoen 94 km · Si Sa Ket 98 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 Phibun Mangsahan (15.2447°, 105.2291°, elevation 127 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).