5-day weather forecast Phnom Penh 22-08-2026

Weather forecast Phnom Penh tomorrow 22.08.2026: overcast, temperature from 25 °C to 36 °C.

Precipitation probability 21%. Wind up to 9.69 m/s (gusts 12.14 m/s). Air humidity 36–79%, atmospheric pressure 755–759 mm Hg, UV index up to 13.

Sunrise 05:50
Sunset 18:16
Waxing Gibbous78% illuminated
Moonrise 14:11 · Moonset 00:51
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Table

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)272726262626252730323435363635353432313030292928
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 (%)100721001008552813310010010010010010010099100100100100100100100100
Rain chance (%)18142021191319814111010101010101011121313141515

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)3.893.112.812.6922.52.313.315.196.397.58.399.319.59.699.59.58.696.395.8966.115.815.5
Wind gust (m/s)10.318.117.115.112.833.833.225.898.729.9210.5311.4211.6911.9212.0311.8111.7211.6110.510.6112.1412.0311.2211.33
Wind direction (°)WSW 240°WSW 240°SW 235°SW 214°SSW 197°SSW 199°SSW 202°SSW 206°WSW 238°WSW 247°WSW 249°WSW 251°WSW 257°W 260°W 260°WSW 258°WSW 257°WSW 252°WSW 246°WSW 247°WSW 257°WSW 256°WSW 244°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 (%)717274767878797160504338363839394247545658606263

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)758758757757757757758758758759758758758756755755755756756757758758758758

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 Index00000000.72.45.38.611.61311.17.13.520.6000000

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)5.55.76.16.36.166.26.75.64.73.83.33.23.13.43.33.64.25.36.36.97.58.28.6
PM10 (µg/m³)6.26.46.97.176.86.97.56.35.54.54.1444.344.45.16.37.38.18.89.610.1
Ozone (O₃) (µg/m³)363534333334374149596564585453525148454343434445
NO₂ (µg/m³)5.866.26.36.36.265.44.12.41.20.70.60.70.70.91.32.33.64.64.94.84.74.7
SO₂ (µg/m³)1.41.31.31.31.31.41.61.71.81.81.81.61.2111.11.21.31.51.61.61.61.51.4
CO (µg/m³)202189166141133160205232223198176165158156156161177215263295297282263241

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.