Last updated: January 18, 2025
Preah Sihanouk, located on the southern coast of Cambodia, experiences a tropical monsoon climate classified as Koppen-Geiger class Am. This region showcases a remarkable temperature range, with minimum temperatures averaging around 18°C (65°F) in January and soaring to maximums of 35°C (96°F) in March. Throughout the year, the average temperature hovers at a warm 27°C (82°F), making Preah Sihanouk an inviting destination characterized by its warm climate and seasonal rains.
In Preah Sihanouk, Cambodia, temperature patterns exhibit a distinct seasonal trend influenced by its tropical monsoon climate. January marks the coolest month, with minimum temperatures around 18°C (65°F) and maximums peaking at 34°C (94°F). As the year progresses into February and March, temperatures gradually rise, with both months reaching maximums of 35°C (95°F) and 35°C (96°F), respectively. From April to June, the mercury remains high, with minimums shifting from 23°C (74°F) in April to 24°C (75°F) in June, while average temperatures stabilize at 28°C (83°F). The summer months of July and August see a slight dip in maximum temperatures, hovering around 32°C (90°F) and 33°C (91°F), while nighttime lows remain consistent. As the year approaches its end, temperatures gradually cool again, with November and December experiencing minimums in the low 20s°C but maintaining a steady average of 27°C (81°F). Overall, this vibrant coastal locale enjoys warm temperatures year-round, punctuated by slight seasonal variations reflective of its monsoon climate.
Sihanoukville and Mittakpheap both experience a temperature range from a minimum of 23°C (73°F) in December to a maximum of 32°C (90°F) in April, reflecting a warm tropical climate. In contrast, Prey Nob sees a cooler minimum temperature of 18°C (65°F) in January, with a peak of 35°C (96°F) in March, highlighting more temperature variation. For further details on the climate, you can explore the monthly temperatures in Sihanoukville here, Mittakpheap here, and Prey Nob here.
Preah Sihanouk experiences pronounced seasonal fluctuations in precipitation, aligning closely with its tropical monsoon climate. The dry season, spanning from January to February, sees relatively lower rainfall, with January recording just 55 mm (2.2 in) and February dropping to 40 mm (1.6 in). As the country transitions into the wet season, March experiences a modest increase to 71 mm (2.8 in), which paves the way for a dramatic rise in precipitation beginning in April. This month alone receives 140 mm (5.5 in), marking the onset of increased rainfall, culminating in May and June when the region is drenched with 330 mm (13.0 in) and 411 mm (16.2 in), respectively.
The peak of the monsoon occurs during the summer months of July and August, with rainfall reaching 548 mm (21.6 in) and 582 mm (22.9 in) respectively, making these the wettest months of the year. Following this period, precipitation begins to decline, although September remains significant with 512 mm (20.2 in). October records 429 mm (16.9 in) as the rainy season begins to wane. By November, rainfall decreases substantially to 164 mm (6.4 in), while December wraps up the year with 72 mm (2.8 in). Throughout the year, the frequency of rainy days varies, peaking in the wet months with about 29 days in both July and August, highlighting the intense and prolonged nature of the monsoon in this coastal locale.
In Preah Sihanouk, Cambodia, sunshine duration displays a clear seasonal trend, with hours of sunlight peaking during the early months of the year. January starts the year with a solid 259 hours of sunshine, gradually increasing to 300 hours in February and reaching its zenith in March with 332 hours. This spring period represents the sunniest time for the region, offering numerous opportunities for outdoor activities and tourism. Although April sees a slight decrease to 314 hours, the overall trend remains positive as the days grow longer and warmer, creating an inviting atmosphere for those seeking sun-drenched experiences.
As the monsoon season approaches in May, sunshine hours remain fairly consistent, clocking 305 hours, before dipping in June with 272 hours. The summer months, spanning July and August, continue this downward trajectory, recording 282 hours and 280 hours respectively, as rain becomes more frequent. The sunshine duration begins to recover in the fall, with September logging 257 hours, the lowest of the year, before gradually rising again in October and November, culminating in 292 hours of sunshine. By December, the region basks in 310 hours of sunlight, providing a pleasant conclusion to the year and hinting at the vibrant potential of the upcoming dry season. Overall, Preah Sihanouk offers a rich variety of sunlit days, particularly from January through April, while also reminding residents and visitors alike of the seasonal shifts that characterize its tropical climate.
Preah Sihanouk, Cambodia, experiences a consistently high UV Index throughout the year, indicating a persistent risk of harm from unprotected sun exposure. Beginning in January, the UV Index registers at 11, classified as extreme, with a burn time of only 10 minutes for unprotected skin. This elevated level persists into February, increasing to 14, and peaks in March and April at 15. These figures highlight the importance of sun protection during these months, as outdoor enthusiasts should exercise caution while engaging in activities under the sun.
As the rainy season approaches, the UV Index maintains its high levels, remaining at 14 in May and fluctuating between 13 and 14 from June through September. This consistency underscores the need for proactive measures against UV exposure. Even as temperatures start to cool towards the end of the year, the UV Index remains significant, dropping to 11 by November and December but still classified as extreme. Given the relentless nature of UV radiation in Preah Sihanouk, residents and visitors are strongly advised to prioritize sun safety strategies year-round, including the use of sunscreen, protective clothing, and seeking shade during peak sunlight hours.
UV Risk Categories
In Preah Sihanouk, Cambodia, daylight duration remains relatively stable throughout the year, reflecting its tropical climate and proximity to the equator. January and February both see approximately 11 hours of daylight, accompanied by favorable weather for outdoor activities. As the region transitions into March, daylight increases to 12 hours, maintaining this duration through the following months of April, May, June, July, August, and September. This consistent exposure to sunlight during the wet season makes it an appealing time for visitors who enjoy longer days, despite the increase in precipitation.
As the year progresses into October, daylight begins to decrease again, dropping back to 11 hours and continuing this trend into November and December. The return to shorter days does not significantly impact the overall warmth or climate, as temperatures remain pleasant year-round. This cyclical pattern of daylight in Preah Sihanouk offers a predictable framework for both residents and tourists, allowing them to effectively plan their activities while enjoying the benefits of extended daylight during the peak months. The combination of ample sunshine and consistent daylight hours makes this coastal area a captivating destination throughout the year.
Mittakpheap, Cambodia experiences a tropical climate characterized by high temperatures and significant rainfall, particularly from May to October. Average temperatures range from 27°C (81°F) in January to a peak of 28°C (83°F) in the warmer months. Rainfall is abundant, with June and August receiving over 600 mm (23.6 in) of precipitation, while January sees the least at 50 mm (2.0 in). Despite the rain, sunshine hours remain relatively high, with March receiving the most at 333 hours. For more details, visit Mittakpheap climate.
The climate in Prey Nob, Cambodia, is characterized by warm temperatures and a distinct wet season. January sees temperatures ranging from 18°C to 34°C, while the hottest months, April to October, have consistent highs of around 33-35°C. Precipitation peaks between May and August, with July receiving the most at 508 mm. Sunshine is abundant, particularly in February and March, with over 300 hours of sun per month. For more detailed information, visit Prey Nob climate.
Sihanoukville, Cambodia, experiences a tropical climate characterized by warm temperatures and distinct wet and dry seasons. Average temperatures range from 27°C (81°F) to 28°C (82°F) throughout the year, with maxima peaking at 32°C (90°F) in April. Rainfall is abundant, especially from May to July, where monthly precipitation can exceed 500 mm, resulting in the wettest months. The region enjoys ample sunshine, with February and March offering the highest sunshine hours, averaging over 300 hours. For more detailed climate information, visit Sihanoukville climate.
In conclusion, Preah Sihanouk, Cambodia, presents a captivating blend of climate characteristics that make it an appealing destination for both residents and tourists alike. With its tropical monsoon climate, the region is defined by high temperatures, significant rainfall during the monsoon season, and consistent high UV exposure year-round. The stable daylight duration enhances the experience, providing ample opportunity to explore the natural beauty and vibrant culture of the area. As visitors prepare to engage with the stunning coastal landscape, understanding these climatic dynamics is essential for ensuring sun safety and making the most of their time in this tropical paradise. Ultimately, Preah Sihanouk's climate serves as both a backdrop and an integral part of the enriching experiences that await everyone who ventures to its shores.