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Weather in Siem Reap for September 2027

Your guide to Siem Reap weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Siem Reap at the beginning of September is 30.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.5 °C by the end of September.

    • Rain 🌧️

  • Siem Reap experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 317.4 mm.

    • More

  • Is September a good time to visit Siem Reap? check out the best time to travel to Siem Reap page.

Average dry days
3
Dry days
Average rainy days
27
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/24°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Siem Reap Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain
30°
2
Light rain
31°
3
Moderate rain
31°
4
Light rain
31°
5
Moderate rain
32°
6
Moderate rain
31°
7
Light rain
31°
8
Light rain
31°
9
Moderate rain
32°
10
Moderate rain
30°
11
Light rain
29°
12
Light rain
31°
13
Moderate or heavy rain shower
29°
14
Moderate rain
30°
15
Light rain
29°
16
Light rain
29°
17
Light rain
31°
18
Light rain
29°
19
Light rain
30°
20
Light rain
31°
21
Patchy light rain with thunder
30°
22
Moderate rain
29°
23
Moderate rain
30°
24
Moderate rain
29°
25
Moderate rain
29°
26
Moderate rain
29°
27
Light rain
29°
28
Moderate rain
29°
29
Light rain
30°
30
Light rain
31°

Temperatures trend during September in Siem Reap

See the weather trend as well as the moving average line

September weather in Siem Reap day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Moderate rain
Moderate rain
 30° /24° 11 mm 6
2 Sept. Light rain
Light rain
 31° /25° 9.1 mm 6
3 Sept. Moderate rain
Moderate rain
 31° /24° 12.2 mm 6
4 Sept. Light rain
Light rain
 31° /25° 9.8 mm 6
5 Sept. Moderate rain
Moderate rain
 32° /25° 17.5 mm 6
6 Sept. Moderate rain
Moderate rain
 31° /25° 12 mm 6
7 Sept. Light rain
Light rain
 31° /25° 6.2 mm 6
8 Sept. Light rain
Light rain
 31° /25° 6.7 mm 6
9 Sept. Moderate rain
Moderate rain
 32° /25° 15 mm 6
10 Sept. Moderate rain
Moderate rain
 30° /24° 15.6 mm 6
11 Sept. Light rain
Light rain
 29° /24° 4.3 mm 6
12 Sept. Light rain
Light rain
 31° /24° 9.5 mm 6
13 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /24° 8.2 mm 6
14 Sept. Moderate rain
Moderate rain
 30° /24° 10.2 mm 6
15 Sept. Light rain
Light rain
 29° /24° 5.2 mm 5
16 Sept. Light rain
Light rain
 29° /24° 6.6 mm 6
17 Sept. Light rain
Light rain
 31° /25° 7 mm 6
18 Sept. Light rain
Light rain
 29° /24° 9.8 mm 6
19 Sept. Light rain
Light rain
 30° /24° 6.7 mm 6
20 Sept. Light rain
Light rain
 31° /24° 9 mm 6
21 Sept. Patchy light rain with thunder
Patchy light rain with thunder
 30° /25° 14 mm 6
22 Sept. Moderate rain
Moderate rain
 29° /24° 13.7 mm 5
23 Sept. Moderate rain
Moderate rain
 30° /24° 21.1 mm 5
24 Sept. Moderate rain
Moderate rain
 29° /24° 23.6 mm 6
25 Sept. Moderate rain
Moderate rain
 29° /24° 13.6 mm 6
26 Sept. Moderate rain
Moderate rain
 29° /23° 12.9 mm 5
27 Sept. Light rain
Light rain
 29° /24° 5.2 mm 5
28 Sept. Moderate rain
Moderate rain
 29° /24° 12.2 mm 5
29 Sept. Light rain
Light rain
 30° /24° 3 mm 6
30 Sept. Light rain
Light rain
 31° /24° 6.6 mm 6
Next
Important Notice
Our weather forecast for Siem Reap in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Siem Reap forecast closer to your planned date for the most up-to-date weather information.
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Siem Reap in September - FAQ

What are the expected maximum and minimum temperatures in Siem Reap during September?
During September, expect a variety of temperatures with highs around 30° and lows near 24°, suitable for diverse activities and preferences.

How much rainfall should be expected in Siem Reap during September?
Significant rainfall exceeding 317.4 mm is expected in Siem Reap during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Siem Reap during September?
The average wind speed in Siem Reap during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Siem Reap

Explore the daily rainfall trends and prepare for Siem Reaps September weather 💧
Typically, Siem Reap has 27 rainy days in September with a total of 317.4 mm of rainfall.

UV exposure in Siem Reap during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Siem Reap?

Get accurate weather forecasts for Siem Reap, located at latitude 13.362 and longitude 103.861. Stay updated with localized weather information tailored for Siem Reap.

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