Climate and monthly weather forecastKrong Preah Sihanouk, Cambodia
Climate and monthly weather forecast
The climate of Krong Preah Sihanouk
Krong Preah Sihanouk, Cambodia, is situated within the Am climatic zone according to the Köppen climate classification, indicating a Tropical monsoon climate. The distinct characteristics of this climate zone can be observed in its year-round high temperatures, significant rainfall during monsoon season, and comparatively lower amounts of rainfall during the dry season.The year in Krong Preah Sihanouk showcases similar high temperatures from month to month, oscillating minimally from 30°C (86°F) to a high of 33.7°C (92.7°F). Likewise, low temperatures remain consistently balmy, ranging from 23.5°C (74.3°F) to as high as 26.8°C (80.2°F). There are no particularly cold months, making the region a haven for heat-seekers.
Rainfall in Krong Preah Sihanouk varies considerably throughout the year. The lightest rainfall occurs in the earlier months, with 25mm (0.98") in February and increasing slightly to 50mm (1.97") in March. However, the volume of rainfall significantly rises from April, reaching a peak of 377mm (14.84") in August before subsiding gradually. The number of rainfall days follows a similar pattern, reaching a high of 21 days in September.
The sea temperature remains ideal for water activities all year round, moving between 27.8°C (82°F) to 30.3°C (86.5°F). Meanwhile, daylight hours and sunshine hours see marginal variations, with a maximum of 12.7 hours in June and July, and a low of 11.5 hours in December. The UV index remains high throughout the year, hovering between 10 to 12.
The best time to visit Krong Preah Sihanouk
Considering the climate conditions, the most pleasant time to visit Krong Preah Sihanouk falls between December and February. During these months, the weather exhibits a relatively lower rainfall, ranging from 25mm (0.98") to 54mm (2.13"), paired with a lower number of rainy days. Moreover, the temperature remains warm yet comfortable, fluctuating between 23.5°C (74.3°F) and 31.3°C (88.3°F), accompanied by a consistently high UV index of 10 to 12.The worst time to visit Krong Preah Sihanouk
The less suitable period to explore the outdoors in Krong Preah Sihanouk falls between August and September. These months record the highest rainfall, reaching up to 377mm (14.84") in August and a significant 321mm (12.64") in September. The number of rainy days is equally considerable, with up to 20 to 21 days of rainfall respectively.Spring weather in Krong Preah Sihanouk
In Krong Preah Sihanouk, the spring months from March to May witness an escalation in the rainfall from 50mm (1.97") to 207mm (8.15"). During this period, the high temperatures range from 32.1°C (89.8°F) to 33.7°C (92.7°F), whereas the low temperatures span from 25°C (77°F) to 26.8°C (80.2°F). With sea temperatures incrementally rising from 28.4°C (83.1°F) to 30.3°C (86.5°F), the ocean remains inviting.Summer weather in Krong Preah Sihanouk
The summer season in Krong Preah Sihanouk, from June through August, is a period with abundant rainfall. Rainfall rises from 253mm (9.96") in June to its annual peak of 377mm (14.84") in August, making it the wettest period. The high temperature fluctuates between 30°C (86°F) and 31.2°C (88.2°F), complemented by low temperatures that vary between 25.9°C (78.6°F) and 26.3°C (79.3°F).Autumn weather in Krong Preah Sihanouk
Autumn, spanning from September to November, sees a gradual reduction in rainfall from 321mm (12.64") to 138mm (5.43"). Temperature highs during this period remain consistent from 30.8°C (87.4°F) to 31.2°C (88.2°F) while lows vary from 25.2°C (77.4°F) to 24.4°C (75.9°F). The sea temperature moderates around 29.3°C (84.7°F), gradually dropping to 29.6°C (85.3°F).Winter weather in Krong Preah Sihanouk
Winter, between December and February, is relatively comfortable in Krong Preah Sihanouk. Lower rainfall levels occur during these months, with December experiencing 54mm (2.13") and February, the driest month, only 25mm (0.98"). High temperatures remain steady around 31.2°C (88.2°F) to 31.7°C (89.1°F), with lows going from 23.5°C (74.3°F) to 24.6°C (76.3°F). This period is marked by a decrease in sea temperature to 27.8°C (82°F) in December, before rising again in February.Weather in January
January in Krong Preah Sihanouk, Cambodia, is characterized by relatively low precipitation and comfortable humidity. The weather brightens the city with 8 hours of sunshine and a mild ultraviolet index of 11. There is a noticeable variation in temperatures, from a low of 23.9°C (75°F) to a high of 31.3°C (88.3°F), promising warmth during both day and night. Weather in January »Weather in February
In contrast to January, February experiences a slight increase in weather temperature, higher rainfall levels, and a longer daylight duration. Despite a minor warming trend, temperatures remain less extreme, ranging from 24.6°C (76.3°F) to 31.2°C (88.2°F). Weather in February »Weather in March
March ushers in more intense weather changes. The temperature rises slightly to a possible high of 32.1°C (89.8°F), and rainfall doubles to 50mm (1.97"), indicating the initiation of the wet season. Residents and tourists watch the city transform as longer daylight hours and a UV index of 12 begin to characterize the weather. Weather in March »Weather in April
Entering April, Krong Preah Sihanouk experiences a dramatic increase in rainfall, reaching 125mm (4.92"), marking the city's progression into the wet season. Destined to reach 33.7°C (92.7°F), temperatures start to peak, combining with the increased rainfall to give birth to a lush, tropical ambiance all around. Weather in April »Weather in May
In May, Krong Preah Sihanouk receives an ample amount of rain, soaring to 207mm (8.15") as the heart of the wet season sets in. Despite the extensive rainfall, the city manages to maintain a high of 32.3°C (90.1°F). Outdoor activities slow down slightly due to reduced sunshine hours, replaced with the rejuvenating rhythm of the rain. Weather in May »Weather in June
June presents the height of Krong Preah Sihanouk's weather transition with rainfall reaching a record-breaking 253mm (9.96"). Even amid this intense rainfall, temperatures remain relatively high, maintaining the tropical charm of the city. Weather in June »Weather in July
July continues the trend of June, bringing even more rainfall to Krong Preah Sihanouk. With 341mm (13.43") of rainfall, it is the month with the most considerable amount of precipitation. Despite the extensive rainfall, temperatures stay quite stable throughout the day and night. Weather in July »Weather in August
In August, rainfall measures at 377mm (14.84"), maintaining the trend set by July. With a high of 30.8°C (87.4°F) and a low of 25.1°C (77.2°F), the city experiences mild fluctuations in temperature, fostering a stable tropical environment even amid the rains. Weather in August »Weather in September
As September rolls in, Krong Preah Sihanouk begins to bid farewell to the rainy season. The city receives significantly less rain, measuring at 321mm (12.64"), thus providing a respite from the preceding rainfall-dominated months. Weather in September »Weather in October
October harkens a drop in rainfall to 290mm (11.42") as the end of the wet season approaches. Greater sunshine hours begin to dominate the weather, and daylight becomes increasingly prominent. The temperature remains within a delightful range, ensuring the preservation of the city's tropical atmosphere. Weather in October »Weather in November
November, the last month of the autumn in Krong Preah Sihanouk, is hot month, with an average temperature varying between 31.2°C (88.2°F) and 24.4°C (75.9°F). Krong Preah Sihanouk experiences an average high-temperature of a still hot 31.2°C (88.2°F) in November, marking an insignificant shift from 30.8°C (87.4°F) in October. Weather in November »Weather in December
December sees a significant reduction in rainfall, bringing it down to 54mm (2.13"). The calm before the dry season follows, and the weather begins to transition to clearer skies. Temperatures maintain a comfortable range, offering pleasant day-to-night changes. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Krong Preah Sihanouk, Cambodia
The warmest month (with the highest average high temperature) is April (33.7°C).
The month with the lowest average high temperature is July (30°C).
The month with the highest average low temperature is May (26.8°C).
The coldest month (with the lowest average low temperature) is December (23.5°C).
Average rainfall
Krong Preah Sihanouk, Cambodia
- Average rainfall in January:
28.3mm - Average rainfall in February:
25.2mm - Average rainfall in March:
50.3mm - Average rainfall in April:
124.8mm - Average rainfall in May:
207.3mm - Average rainfall in June:
252.7mm
- Average rainfall in July:
341.4mm - Average rainfall in August:
377.2mm - Average rainfall in September:
320.6mm - Average rainfall in October:
290.4mm - Average rainfall in November:
138.2mm - Average rainfall in December:
54.4mm
The wettest month (with the highest rainfall) is August (377.2mm).
The driest month (with the least rainfall) is February (25.2mm).
Average rainfall days
Krong Preah Sihanouk, Cambodia
- Average rainfall days in January:
5 days - Average rainfall days in February:
5 days - Average rainfall days in March:
6 days - Average rainfall days in April:
9 days - Average rainfall days in May:
17 days - Average rainfall days in June:
19 days
- Average rainfall days in July:
20 days - Average rainfall days in August:
20 days - Average rainfall days in September:
21 days - Average rainfall days in October:
19 days - Average rainfall days in November:
13 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is September (21 days).
The months with the least rainy days are January and February (5 days).
Average sea temperature
Krong Preah Sihanouk, Cambodia
The best month for swimming (with the highest average sea temperature) is May (30.3°C).
The coldest month (with the lowest average sea temperature) is January (27.8°C).
Average daylight / Average sunshine
Krong Preah Sihanouk, Cambodia
- Average daylight in January:
11h and 36min - Average daylight in February:
11h and 48min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 36min - Average daylight in June:
12h and 42min
- Average daylight in July:
12h and 42min - Average daylight in August:
12h and 30min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 54min - Average daylight in November:
11h and 36min - Average daylight in December:
11h and 30min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
The months with the most sunshine are January, February, March and April (Average sunshine: 8h).
The months with the least sunshine are July, August and September (Average sunshine: 5h).
Average UV index
Krong Preah Sihanouk, Cambodia
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).





