Poipet weather in September

In September, Poipet sees average daytime highs of 31°C and overnight lows near 25°C, with 237 mm of rain across 25.2 wet days and about 12.1 hours of daylight. It is the 10th-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 2% 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 Poipet's 9th-clearest and 10th-windiest month. For the whole year in context, see Poipet's year-round climate.

Daytime high
31°
10th warmest
Overnight low
25°
7th coldest
Rainfall
237 mm
25.2 wet days
Daylight
12 h 06 min
6:02 AM – 6:06 PM
Cloud cover
87%
9th clearest
Wind
8 km/h
10th windiest
Solar energy
4.58 kWh/m²
Travel score
2.6
out of 10

Poipet is city in Cambodia.

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 Poipet reaches about 31°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
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 Poipet

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
17 feel dangerously hot (≥ 39°C)
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.

Poipet weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 21°112.211.34.8
Feb34° / 23°163.111.53.7
Mar35° / 25°498.511.92.5
Apr36° / 26°8014.512.31.9
May34° / 26°14522.112.62.0
Jun33° / 26°14122.412.82.3
Jul32° / 25°16124.612.72.5
Aug32° / 25°18125.512.52.5
Sep31° / 25°23725.212.12.6
Oct31° / 24°15718.311.73.4
Nov32° / 23°295.211.44.6
Dec31° / 21°61.411.25.3

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 91%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3793
4793
5793
6793
7793
8793
9694
10793
11793
12793
13793
14793
15892
16892
17892
18991
19991
201090
211189
221189
231189
241288
251288
261288
271486
281486
291486
301585

Chance of precipitation in September

Any precipitation

Poipet gets around 237 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 85% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
183
284
384
484
584
684
784
884
984
1084
1184
1284
1384
1485
1585
1685
1785
1885
1985
2085
2185
2285
2385
2485
2584
2684
2783
2883
2982
3082

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 89% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11189
21189
31189
41189
51189
61189
71189
81189
91189
101189
111189
121189
131189
141189
151189
161189
171189
181189
191189
201189
211090
221090
231090
241090
251189
261189
271189
281288
291288
301387

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
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 6:01 AM to 6:02 AM, and sunset from 6:17 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:016:17
212.36:016:17
312.26:026:16
412.26:026:15
512.26:026:15
612.26:026:14
712.26:026:13
812.26:026:12
912.26:026:12
1012.26:026:11
1112.16:026:10
1212.16:026:09
1312.16:026:09
1412.16:026:08
1512.16:026:07
1612.16:026:06
1712.16:026:06
1812.06:026:05
1912.06:026:04
2012.06:026:03
2112.06:026:03
2212.06:026:02
2312.06:026:01
2412.06:026:00
2512.06:025:59
2611.96:025:59
2711.96:025:58
2811.96:025:57
2911.96:025:57
3011.96:025:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.58 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.58 kWh/m² to a high of 6.03 kWh/m² in April across the year — September's 4.58 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Poipet

In seasonPeak

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

Poipet'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 Poipet?

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

2.6
Sightseeing
6th-best month of the year
4.0
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Poipet.

What to pack for Poipet in September

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

In September, Poipet sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Poipet 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 Poipet peaks around August 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 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 15UV 14Nov 22UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar13Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec9Very high

Air quality in Poipet 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 Poipet is worst in February — around 38 µg/m³ PM2.5 (poor), about 2.5× the cleanest month (June, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1538 µg/m³Jun 1716 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb38Poor
Mar34Moderate
Apr25Moderate
May17Moderate
Jun15Moderate
Jul17Moderate
Aug16Moderate
Sep18Moderate
Oct20Moderate
Nov16Moderate
Dec17Moderate
Location & terrain

Where is Poipet?

Poipet sits at 13.7°N, 102.6°E, 43 m above sea level, in Cambodia. The nearest listed city is Aranyaprathet, 8.0 km away.

Wang Nam YenSisophonSa KaeoPailinBattambangPhum Ânlŭng Vĭl

Topography around Poipet

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

Within 3 km, the terrain around Poipet has only modest variations in elevation — a maximum elevation change of 18 m around an average of 43 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 104 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,398 m.

The land around Poipet is covered by artificial surfaces (39%) and cropland (25%) within 3 km, cropland (73%) within 16 km, and cropland (59%) and trees (36%) within 80 km.

3 km
18 m
16 km
104 m
80 km
1,398 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Aranyaprathet 8.0 km · Ou Bei Choan 23 km · Wang Nam Yen 45 km · Sisophon 45 km · Sa Kaeo 56 km · Pailin 90 km · Battambang 92 km · Phum Ânlŭng Vĭl 97 km

Cambodia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / C / G
230 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,872
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
1.8
per 100k, 2011
Road deaths
19.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 390
Religion
Buddhist 97%Muslim 2%other 1%Christian 0%

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 Poipet (13.658°, 102.5636°, elevation 43 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).