Climate averages 1991–2020
Sihanoukville weather
in October.
A hot, very wet month: the 9th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Sihanoukville: daytime highs average 28.5°C and nights cool to about 24.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 343 mm of rain on roughly 27 days, which makes October a very wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average October day.
The nearest other city in this atlas is Phú Quốc (64 km away). In October its highs average 27.0°C, 1.5°C cooler than Sihanoukville, with 323 mm of rain.
Among the 8 cities listed in Cambodia, Sihanoukville ranks 8th of 8 for the warmest October highs and 8th of 8 for the driest October (rainfall, lowest first). The mean October high of those 8 cities is 30.0°C; Sihanoukville is 1.5°C cooler than that mean.
From October to November, average highs rise by 0.8°C to 29.3°C, and monthly rainfall falls from 343 mm to 104 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Sihanoukville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C24.1°C | 24.1°C | 37 | 9.7 | 11.612 h |
| February | 29.9°C24.5°C | 24.5°C | 30 | 8.3 | 11.812 h |
| March | 30.6°C25.5°C | 25.5°C | 65 | 13.4 | 12.112 h |
| April | 30.9°C26.2°C | 26.2°C | 115 | 19.0 | 12.412 h |
| May | 29.8°C26.1°C | 26.1°C | 377 | 27.9 | 12.613 h |
| June | 28.8°C25.7°C | 25.7°C | 489 | 27.7 | 12.713 h |
| July | 28.3°C25.3°C | 25.3°C | 558 | 29.4 | 12.713 h |
| August | 28.1°C25.3°C | 25.3°C | 556 | 28.9 | 12.512 h |
| September | 28.0°C25.0°C | 25.0°C | 554 | 28.4 | 12.212 h |
| October, selected | 28.5°C24.7°C | 24.7°C | 343 | 27.1 | 11.912 h |
| November | 29.3°C24.9°C | 24.9°C | 104 | 15.4 | 11.612 h |
| December | 29.4°C24.5°C | 24.5°C | 44 | 9.3 | 11.512 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Phú Quốc in OctoberVietnam · 64 kmHigh 27.0°C · Low 24.5°C · 323 mm rain
- Hà Tiên in OctoberVietnam · 108 kmHigh 29.6°C · Low 24.3°C · 284 mm rain
- Takeo in OctoberCambodia · 144 kmHigh 30.3°C · Low 23.7°C · 258 mm rain
- Tịnh Biên in OctoberVietnam · 154 kmHigh 30.4°C · Low 23.8°C · 324 mm rain
- Châu Đốc in OctoberVietnam · 174 kmHigh 30.4°C · Low 23.8°C · 297 mm rain
- Dangkao in OctoberCambodia · 179 kmHigh 30.4°C · Low 24.1°C · 244 mm rain
- Rạch Giá in OctoberVietnam · 182 kmHigh 29.6°C · Low 24.3°C · 301 mm rain
- Phnom Penh in OctoberCambodia · 185 kmHigh 30.4°C · Low 24.1°C · 244 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Sihanoukville) is explained once on the Sihanoukville year overview and on the Sources, method and limits page.