I bought 1GB this time, and I haven't even used it all up each day. Except for remote mountainous areas across the border where there's no signal, reception is normal and smooth everywhere else.
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Phnom Penh Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Phnom Penh year round climate
Spring (March–May): Average 29.6–30.8°C, hot and dry climate. Rainfall is minimal in March, increasing in April. Common activities: Visiting temples and the Royal Palace, enjoying the city views. Recommended clothing: Light and breathable cotton clothing, sun hat, sunglasses.
Summer (June–August): Average 28.7–29.8°C, hot and humid climate with abundant rainfall. Common activities: Enjoying indoor activities such as visiting museums or resting in air-conditioned places. Recommended clothing: Light and breathable cotton clothing, sweat-wicking clothing.
Autumn (September–November): Average 28.3–28.5°C, still hot but with heavier rainfall and high humidity. October receives the most rainfall. Common activities: Exploring the Mekong River, enjoying local cuisine. Recommended clothing: Light and breathable clothing, rain gear.
Winter (December–February): Average 27.5–28.6°C, relatively dry and cool but still warm. Common activities: Sightseeing and enjoying outdoor activities. Recommended clothing: Light long-sleeved clothing.
Phnom Penh climatological average
Annual average temperature: approx. 28.9°C / Annual rainfall: approx. 1863 mm / Summer humidity: 75%–85% / Rainiest month: October
Phnom Penh monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
27.6°C
13.2
February
28.6°C
5.5
March
29.6°C
0.5
April
30.8°C
32.5
May
30.2°C
159.9
June
29.8°C
177.2
July
28.7°C
243.9
August
29.2°C
259.8
September
28.3°C
297.6
October
28.3°C
415.8
November
28.5°C
226.2
December
27.5°C
31
Phnom Penh weather for the next seven days
6/6
Saturday
Partly Cloudy
35.7°C/26.2°C
6/7
Sunday
Sunny
35.5°C/26.4°C
6/8
Monday
Partly Cloudy
36.6°C/27.3°C
6/9
Tuesday
Patchy rain nearby
35.1°C/27.6°C
6/10
Wednesday
Patchy rain nearby
35.5°C/27.4°C
6/11
Thursday
Patchy rain nearby
35.2°C/26.6°C
6/12
Friday
Patchy rain nearby
32.2°C/25.8°C
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