Best Time to Visit
🇰🇭 Phnom Penh, Cambodia · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Jan
32°
22°
Great
Feb
33°
23°
Great
Mar
35°
25°
Good
Apr
35°
26°
Good
May
34°
26°
Good
Jun
32°
25°
Good
Jul
32°
25°
Good
Aug
32°
25°
Good
Sep
31°
24°
Good
Oct
30°
24°
Good
Nov
30°
23°
Good
Dec
31°
23°
Great
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| JanuaryRecommended | 32°C | 22°C | 3 | 11h | 82% | 3 | Great | View |
| FebruaryRecommended | 33°C | 23°C | 2 | 11h | 82% | 3 | Great | View |
| March | 35°C | 25°C | 6 | 11h | 82% | 6 | Good | View |
| April | 35°C | 26°C | 14 | 11h | 82% | 6 | Good | View |
| May | 34°C | 26°C | 23 | 11h | 82% | 8 | Good | View |
| June | 32°C | 25°C | 24 | 10h | 82% | 8 | Good | View |
| July | 32°C | 25°C | 25 | 9h | 82% | 8 | Good | View |
| August | 32°C | 25°C | 25 | 9h | 82% | 8 | Good | View |
| September | 31°C | 24°C | 27 | 9h | 82% | 6 | Good | View |
| October | 30°C | 24°C | 25 | 9h | 82% | 6 | Good | View |
| November | 30°C | 23°C | 11 | 10h | 82% | 3 | Good | View |
| DecemberRecommended | 31°C | 23°C | 5 | 10h | 82% | 3 | Great | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Avg: 35°C high, 26°C low
Temperatures peak at 35°C (95°F), making midday heat intense. Rain is frequent, waterproof gear recommended. Nights cool to 26°C (79°F).
Avg: 32°C high, 25°C low
Temperatures peak at 32°C (90°F), making midday heat intense. Rain is frequent, waterproof gear recommended. Nights cool to 25°C (77°F).
Avg: 30°C high, 24°C low
Temperatures peak at 30°C (86°F), making midday heat intense. Rain is frequent, waterproof gear recommended. Nights cool to 24°C (75°F).
Avg: 32°C high, 23°C low
Temperatures peak at 32°C (90°F), making midday heat intense. Rainfall is low. Nights cool to 23°C (73°F).
The least favorable time to visit Phnom Penh is April and May. During this period, you can expect extreme heat, frequent rain, high humidity.
April
Challenges: extreme heat, frequent rain, high humidity
May
Challenges: very hot temperatures, heavy rainfall, high humidity
June
Challenges: very hot temperatures, heavy rainfall, high humidity
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience.
Packing recommendations for visiting Phnom Penh during the best travel months (January, December, February), when temperatures range from 23°C to 32°C:
Phnom Penh has a tropical climate (Koppen classification: Am). The warmest month is April with highs of 35°C, while the coldest month is November at just 30°C. Annual rainfall averages 1398mm across approximately 190 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 32 | 33 | 35 | 35 | 34 | 32 | 32 | 32 | 31 | 30 | 30 | 31 |
| Low °C | 22 | 23 | 25 | 26 | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 23 |
| Rain Days | 3 | 2 | 6 | 14 | 23 | 24 | 25 | 25 | 27 | 25 | 11 | 5 |
| Rain mm | 15 | 8 | 39 | 86 | 156 | 154 | 156 | 179 | 251 | 249 | 79 | 26 |
| Sun h/day | 11 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 10 |
| Humidity % | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 |
| UV Index | 3 | 3 | 6 | 6 | 8 | 8 | 8 | 8 | 6 | 6 | 3 | 3 |
Considering alternatives to Phnom Penh? Compare the best travel months for nearby cities:
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
Explore weather guides for other popular destinations: