Pak Chong weather in September

In September, Pak Chong sees average daytime highs of 30°C and overnight lows near 24°C, with 253 mm of rain across 25.2 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 30°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels oppressive.

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 Pak Chong's 9th-clearest and 11th-windiest month. For the whole year in context, see Pak Chong's year-round climate.

Daytime high
30°
8th warmest
Overnight low
24°
7th coldest
Rainfall
253 mm
25.2 wet days
Daylight
12 h 06 min
6:06 AM – 6:11 PM
Cloud cover
86%
9th clearest
Wind
7 km/h
11th windiest
Solar energy
4.41 kWh/m²
Travel score
3.0
out of 10

Pak Chong is town in Nakhon Ratchasima 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 30°C through the month.

A typical September day in Pak Chong 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 31°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)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283023
293023
303023

How September really feels in Pak Chong

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.

Pak Chong 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
Jan29° / 18°15311.26.7
Feb31° / 20°214.111.55.4
Mar32° / 22°7210.511.93.9
Apr33° / 24°11216.312.33.1
May32° / 24°16822.412.72.8
Jun31° / 24°13622.612.92.9
Jul30° / 24°14923.512.83.1
Aug30° / 24°17525.512.53.0
Sep30° / 24°25325.212.13.0
Oct29° / 23°13916.211.74.5
Nov29° / 21°26511.36.3
Dec28° / 18°71.711.17.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% 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 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3793
4793
5793
6694
7694
8694
9694
10793
11793
12793
13793
14793
15793
16991
17991
18991
19991
201288
211288
221288
231288
241387
251486
261486
271486
281486
291585
301684

Chance of precipitation in September

Any precipitation

Pak Chong gets around 253 mm of rain over 25.2 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 84% and peaks near 86% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
185
285
385
485
585
685
785
885
985
1085
1185
1285
1385
1486
1586
1686
1785
1885
1985
2085
2185
2284
2384
2484
2583
2683
2783
2882
2981
3081

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10937
20937
30937
41927
51927
61927
71927
81927
91927
101927
111927
121927
131927
141927
151927
162917
172917
182917
192917
202908
212908
222908
232908
242908
252908
263898
273898
283898
294888
304888

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.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
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 6:05 AM to 6:07 AM, and sunset from 6:23 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:056:23
212.36:056:22
312.36:066:21
412.26:066:20
512.26:066:20
612.26:066:19
712.26:066:18
812.26:066:17
912.26:066:17
1012.26:066:16
1112.26:066:15
1212.16:066:14
1312.16:066:13
1412.16:066:13
1512.16:066:12
1612.16:066:11
1712.16:066:10
1812.16:066:10
1912.06:066:09
2012.06:066:08
2112.06:066:07
2212.06:076:06
2312.06:076:06
2412.06:076:05
2512.06:076:04
2611.96:076:03
2711.96:076:02
2811.96:076:02
2911.96:076:01
3011.96:076:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.41 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.41 kWh/m² to a high of 6.04 kWh/m² in April across the year — September's 4.41 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.4Bright
Planning a trip in September

Hazard calendar for Pak Chong

In seasonPeak

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

Pak Chong's rainy season runs May–October, when most of the year's rain falls.

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

Is September a good time to visit Pak Chong?

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

3.0
Sightseeing
9th-best month of the year
4.2
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Pak Chong.

What to pack for Pak Chong in September

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

In September, Pak Chong sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

UV index in Pak Chong 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 Pak Chong peaks around August 14 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 14UV 14Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May10Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Pak Chong 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 Pak Chong is worst in March — around 47 µg/m³ PM2.5 (poor), about 2.0× the cleanest month (November, 23 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1446 µg/m³Nov 2323 µg/m³
PM2.5 (µg/m³)Level
Jan35Poor
Feb44Poor
Mar47Poor
Apr40Poor
May32Moderate
Jun26Moderate
Jul26Moderate
Aug26Moderate
Sep27Moderate
Oct27Moderate
Nov23Moderate
Dec23Moderate
Location & terrain

Where is Pak Chong?

Pak Chong sits at 14.7°N, 101.4°E, 307 m above sea level, in Thailand. The nearest listed city is Amphoe Sikhiu, 38 km away.

Topography around Pak Chong

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

Within 3 km, the terrain around Pak Chong has significant variations in elevation — a maximum elevation change of 258 m around an average of 334 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 470 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,339 m.

The land around Pak Chong is covered by trees (51%) within 3 km, trees (44%) and cropland (37%) within 16 km, and cropland (49%) and trees (44%) within 80 km.

3 km
258 m
16 km
470 m
80 km
1,339 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Amphoe Sikhiu 38 km · Kaeng Khoi 47 km · Saraburi 57 km · Nakhon Nayok 60 km · Chai Badan 63 km · Phra Phutthabat 67 km · Dan Khun Thot 67 km · Ban Phra 68 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 Pak Chong (14.708°, 101.4161°, elevation 307 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).