Climate Yearbook

Historical weather in Phnom Penh, Cambodia

Phnom Penh weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.

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Weather summary

Across 2023-2025, Phnom Penh averaged 32.3 C for daily highs and 24.6 C for daily lows across 1096 daily observations.

The warmest month was April 2024, with an average high of 37.1 C, while January 2025 had the lowest average low at 21.7 C.

The wettest month was October 2023, totaling 486.6 mm of precipitation.

The hottest day reached 39.3 C on April 29, 2024; the coldest night fell to 18.4 C on January 13, 2025.

Monthly summary table

YearMonthAvg low CAvg high CRain and snow mmDays
2023January22.129.155.331
2023February23.131.817.128
2023March23.633.613.031
2023April25.834.591.630
2023May26.433.7193.831
2023June25.832.9171.130
2023July25.131.4265.631
2023August25.432.4239.231
2023September24.830.7407.130
2023October24.331.1486.631
2023November23.930.5256.030
2023December23.731.142.731
2024January22.731.73.031
2024February23.833.25.429
2024March25.435.112.331
2024April27.437.112.030
2024May26.634.2257.431
2024June26.133.0170.630
2024July25.031.1282.831
2024August25.132.1239.331
2024September24.931.2352.230
2024October24.230.8375.531
2024November24.632.1120.830
2024December23.530.778.131
2025January21.731.00.831
2025February23.533.337.728
2025March24.734.272.131
2025April25.434.6122.630
2025May25.733.1259.431
2025June25.431.8272.230
2025July25.632.2167.231
2025August25.232.7280.231
2025September24.931.2384.030
2025October24.631.5281.231
2025November23.430.0137.030
2025December23.532.024.131

Daily weather records

RecordDateValue
Hottest dayApril 29, 202439.3 C
Coldest nightJanuary 13, 202518.4 C
Wettest daySeptember 17, 202447.6 mm

Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.