Sihanoukville weather in January
January in Sihanoukville: hot, a little rain — one of the best months to visit.
#2 of 12 months in Sihanoukville · #77 of 897 destinations to visit in January · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sihanoukville in January
No notes yet. Open Sihanoukville on the map to add the first one.
Sihanoukville climate normals — January
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Rainfall | 50 mm / 2 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 10 h/day | |
| Daylight | 11.6 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Sihanoukville?
Loading map…
Sihanoukville in January — FAQ
- Is January a good time to visit Sihanoukville?
- January in Sihanoukville: hot, a little rain — one of the best months to visit. It ranks #2 of 12 months for Sihanoukville on SeasonMap's comfort score (90/100).
- What is the weather like in Sihanoukville in January?
- In January, Sihanoukville averages a daily high of 29.1°C and a low of 24.1°C, with about 49.7 mm of rain over roughly 9.8 rainy days.
- What is the air quality in Sihanoukville in January?
- Sihanoukville has a mean US Air Quality Index of about 55 in January.