Phnom Penh weather in 2025
Phnom Penh weather in 2025, with 365 daily observations from Open-Meteo archive data.
Interactive graph
Open Phnom Penh in the interactive graph
Use the graph view to inspect 2025 alongside other available years for Phnom Penh.
Year summary
In 2025, Phnom Penh averaged 32.3 C for daily highs and 24.5 C for daily lows.
A 1991-2020 normal is not available for this location yet, so this page compares 2025 with the 2023-2025 archive baseline. The 2025 average daily high was 0.0 C from that baseline, and total precipitation was -23.8 mm from the baseline total.
The warmest month was April, with an average high of 34.6 C, while January had the lowest average low at 21.7 C.
The wettest month was September, totaling 384.0 mm. The hottest day reached 37.5 C on April 23, 2025.
Monthly averages and precipitation
| Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|
| January | 21.7 | 31.0 | 0.8 | 31 |
| February | 23.5 | 33.3 | 37.7 | 28 |
| March | 24.7 | 34.2 | 72.1 | 31 |
| April | 25.4 | 34.6 | 122.6 | 30 |
| May | 25.7 | 33.1 | 259.4 | 31 |
| June | 25.4 | 31.8 | 272.2 | 30 |
| July | 25.6 | 32.2 | 167.2 | 31 |
| August | 25.2 | 32.7 | 280.2 | 31 |
| September | 24.9 | 31.2 | 384.0 | 30 |
| October | 24.6 | 31.5 | 281.2 | 31 |
| November | 23.4 | 30.0 | 137.0 | 30 |
| December | 23.5 | 32.0 | 24.1 | 31 |
Daily records in 2025
| Record | Date | Value |
|---|---|---|
| Hottest day | April 23, 2025 | 37.5 C |
| Coldest night | January 13, 2025 | 18.4 C |
| Wettest day | September 3, 2025 | 39.3 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.