5-day weather forecast Phnom Penh 12-08-2026

Weather forecast Phnom Penh today 12.08.2026: sunny, temperature from 25 °C to 36 °C.

Precipitation probability 10%. Wind up to 5.39 m/s (gusts 8.39 m/s). Air humidity 39–79%, atmospheric pressure 754–758 mm Hg, UV index up to 12.3.

Sunrise 05:49
Sunset 18:21
New Moon0% illuminated
Moonrise 04:49 · Moonset 17:53
Chart
Table
Wed, Aug 12, 2026

Forecast from 25 °C to 36 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)262626262625262628303335363635343333323129292828
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)161516161415192017141340448080854448702214222123
Rain chance (%)78999101096423378944734566

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.312.191.611.311.391.311.52.193.894.69555.315.3154.613.393.53.395.115.395.114.614.19
Wind gust (m/s)3.833.722.752.222.392.222.393.225.035.475.755.756.116.116.566.865.4455.317.868.397.727.116.58
Wind direction (°)SW 224°SW 219°SW 218°SW 234°W 260°W 267°W 266°W 259°W 264°W 268°W 270°W 277°WNW 288°WNW 289°W 277°W 278°NW 315°NW 305°W 272°WSW 247°WSW 241°WSW 237°WSW 241°WSW 246°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)737576777879787770595043394044475148515460646768

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)756756756756756756756757758758758757756755755754754755755755756757757757

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index00000000.31.54.37.511.312.311.26.82.21.10.4000000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)7.87.57.57.16.55.75.35.85.85.86.57.68.38.78.38.48.58.910.21213.113.112.812.2
PM10 (µg/m³)10.310.210.49.78.87.76.8777.38.911.112.513.112.712.611.612.413.515.416.616.916.816.3
Ozone (O₃) (µg/m³)323232323333333647617174747269656053464038373839
NO₂ (µg/m³)5.85.75.45.14.95.15.35.24.22.91.81.31.11.11.21.62.44.26.588.17.36.66.1
SO₂ (µg/m³)1.110.90.90.911.21.41.722.22.11.81.61.41.31.31.51.821.91.71.51.3
CO (µg/m³)125125114108117158216249236200169151137133141158179211248266251217186164
Wed, Aug 12, 2026

Frequently asked questions about the 5-day weather in Phnom Penh

Over the next 5 days in Phnom Penh the temperature is expected to range from about 24 to 36 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

The chance of rain in Phnom Penh over the next 5 days reaches 82%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Over the next 5 days the temperature in Phnom Penh ranges from about 24 to 36 °C. Compare the warmest and coolest day on the temperature chart above.

Over the next 5 days the wind in Phnom Penh picks up to 9 m/s. The windiest days are easy to spot on the wind chart above.

For a walk or a trip, pick the days with the lowest chance of rain (up to 82%) and light wind — easy to compare on the 5-day charts above.

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Phnom Penh on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.