Phu Khiao weather in September

In September, Phu Khiao sees average daytime highs of 32°C and overnight lows near 25°C, with 249 mm of rain across 24 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 32°C through the month. The sky is clear or mostly clear about 7% 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 Phu Khiao's 9th-clearest and 12th-windiest month. For the whole year in context, see Phu Khiao's year-round climate.

Daytime high
32°
8th warmest
Overnight low
25°
7th coldest
Rainfall
249 mm
24 wet days
Daylight
12 h 06 min
6:03 AM – 6:09 PM
Cloud cover
82%
9th clearest
Wind
5 km/h
12th windiest
Solar energy
4.54 kWh/m²
Travel score
2.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Phu Khiao reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°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)
13225
23225
33225
43225
53225
63225
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283124
293124
303124

How September really feels in Phu Khiao

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.

Phu Khiao 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
Jan30° / 18°81.711.16.3
Feb32° / 20°102.311.44.8
Mar35° / 23°356.211.93.1
Apr35° / 25°6911.412.42.3
May34° / 26°14619.812.82.2
Jun34° / 26°12918.4132.3
Jul33° / 26°15120.112.92.5
Aug32° / 25°19723.112.52.5
Sep32° / 25°2492412.12.7
Oct31° / 23°12814.511.64.1
Nov30° / 21°253.811.25.8
Dec29° / 18°61116.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 83%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5793
6892
7892
8991
9991
101189
111288
121387
131585
141684
151684
161882
171981
182179
192278
202377
212377
222575
232674
242674
252773
262872
272872
282971
292971
303169

Chance of precipitation in September

Any precipitation

Phu Khiao gets around 249 mm of rain over 24 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 80% and peaks near 84% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
183
283
383
484
584
684
784
884
984
1084
1184
1284
1383
1483
1582
1682
1781
1880
1980
2079
2178
2277
2377
2476
2575
2674
2774
2873
2972
3071

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
103070
203070
303070
403070
503070
603070
703070
803070
903070
1003070
1113168
1213168
1313267
1413267
1513366
1613465
1713564
1823662
1923761
2023860
2123959
2224058
2324157
2434255
2534453
2634552
2734750
2844848
2944946
3055045

Wind in September

Winds average 5 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:01 AM to 6:05 AM, and sunset from 6:21 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:016:21
212.36:026:20
312.36:026:19
412.36:026:19
512.36:026:18
612.26:026:17
712.26:026:16
812.26:026:15
912.26:026:14
1012.26:026:14
1112.26:036:13
1212.26:036:12
1312.16:036:11
1412.16:036:10
1512.16:036:09
1612.16:036:09
1712.16:036:08
1812.16:036:07
1912.06:036:06
2012.06:036:05
2112.06:046:04
2212.06:046:03
2312.06:046:03
2412.06:046:02
2511.96:046:01
2611.96:046:00
2711.96:045:59
2811.96:045:59
2911.96:055:58
3011.96:055:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 6 kWh/m² in April across the year — September's 4.54 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
Planning a trip in September

Hazard calendar for Phu Khiao

In seasonPeak

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

Phu Khiao'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 Phu Khiao?

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
4.2
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Phu Khiao.

What to pack for Phu Khiao in September

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

In September, Phu Khiao sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Phu Khiao in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Phu Khiao peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 14Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec8Very high

Air quality in Phu Khiao 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 Phu Khiao is worst in March — around 51 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (June, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1550 µg/m³Jun 2319 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb45Poor
Mar51Poor
Apr41Poor
May27Moderate
Jun19Moderate
Jul19Moderate
Aug20Moderate
Sep21Moderate
Oct24Moderate
Nov22Moderate
Dec23Moderate
Location & terrain

Where is Phu Khiao?

Phu Khiao sits at 16.4°N, 102.1°E, 213 m above sea level, in Thailand. The nearest listed city is Chum Phae, 19 km away.

Bua Yai

Topography around Phu Khiao

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

Within 3 km, the terrain around Phu Khiao has only modest variations in elevation — a maximum elevation change of 19 m around an average of 211 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 684 m; within 80 km, large variations in elevation — a maximum elevation change of 1,163 m.

The land around Phu Khiao is covered by cropland (63%) and trees (21%) within 3 km, cropland (71%) and trees (22%) within 16 km, and cropland (55%) and trees (39%) within 80 km.

3 km
19 m
16 km
684 m
80 km
1,163 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Chum Phae 19 km · Kaset Sombun 21 km · Kaeng Khro 33 km · Phu Kradueng 62 km · Chaiyaphum 64 km · Ban Phai 73 km · Khon Kaen 76 km · Bua Yai 94 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 Phu Khiao (16.3765°, 102.1285°, elevation 213 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).