Our verdict
The best time to visit Sihanoukville is February-April
The warmest month of the year in Sihanoukville is May, where the average temperature gets to around 31℃ (87℉), but temperatures can reach as high as 32℃ (89℉) on the hottest days in summer. In the winter months, it can get down to as low as 23℃ (74℉) at night.
The sun stays up the longest in Sihanoukville in May, so you’ll get the most out of your daytime activities if you visit around this time. On average it rains the most days in August, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.
To learn everything you need to know (and none of the stuff you don’t) about when to visit Sihanoukville, keep reading below. Plus, you’ll find tools to help you get the best deals on travel and hotels too!
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
*Support us by clicking the links above and making a booking with our partners. It's completely free for you, and it helps us make this site even more awesome! We'll <3 you for it.
Sihanoukville seasons
Before you continue, it’s important to know when the seasons are in Sihanoukville as they might be different to yours depending on where in the world you’re travelling from. Sihanoukville is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Sihanoukville
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Sihanoukville for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Sihanoukville climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Sihanoukville for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Sihanoukville in January
- Average temperature: 27℃ (80℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 25℃ (77℉)
- Average humidity: 71%
- Average sunny days: 17 days
- Average rainfall: 48mm (2") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in January, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in February
- Average temperature: 27℃ (81℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 26℃ (78℉)
- Average humidity: 73%
- Average sunny days: 14 days
- Average rainfall: 30mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in February, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in March
- Average temperature: 28℃ (82℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 27℃ (80℉)
- Average humidity: 75%
- Average sunny days: 10 days
- Average rainfall: 65mm (3") over 19 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in March, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in April
- Average temperature: 29℃ (84℉)
- Average high temperature: 30℃ (86℉)
- Average low temperature: 28℃ (82℉)
- Average humidity: 75%
- Average sunny days: 6 days
- Average rainfall: 127mm (5") over 22 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in April, make sure you pack t-shirts and shorts.. It stays warm all day and night.
Add visitor or local insider tips >
Sihanoukville in May
- Average temperature: 30℃ (85℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 28℃ (83℉)
- Average humidity: 74%
- Average sunny days: 4 days
- Average rainfall: 186mm (7") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in May, make sure you pack t-shirts and shorts.. It stays warm all day and night.
Add visitor or local insider tips >
Sihanoukville in June
- Average temperature: 29℃ (84℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 28℃ (82℉)
- Average humidity: 77%
- Average sunny days: 2 days
- Average rainfall: 288mm (11") over 26 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in June, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in July
- Average temperature: 28℃ (83℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 27℃ (81℉)
- Average humidity: 78%
- Average sunny days: 5 days
- Average rainfall: 303mm (12") over 25 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in July, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in August
- Average temperature: 28℃ (83℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 27℃ (81℉)
- Average humidity: 78%
- Average sunny days: 4 days
- Average rainfall: 362mm (14") over 27 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in August, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in September
- Average temperature: 28℃ (82℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 27℃ (80℉)
- Average humidity: 79%
- Average sunny days: 5 days
- Average rainfall: 311mm (12") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in September, make sure you pack t-shirts and light clothing.
Sihanoukville in October
- Average temperature: 28℃ (82℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 27℃ (80℉)
- Average humidity: 77%
- Average sunny days: 6 days
- Average rainfall: 211mm (8") over 25 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in October, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in November
- Average temperature: 28℃ (82℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 27℃ (80℉)
- Average humidity: 75%
- Average sunny days: 8 days
- Average rainfall: 122mm (5") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in November, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
Sihanoukville in December
- Average temperature: 27℃ (81℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 26℃ (78℉)
- Average humidity: 71%
- Average sunny days: 17 days
- Average rainfall: 52mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Sihanoukville in December, make sure you pack t-shirts and light clothing.
Add visitor or local insider tips >
