Climate and monthly weather forecastKrong Siem Reap, Cambodia
Climate and monthly weather forecast
The climate of Krong Siem Reap
Krong Siem Reap is geographically located in Cambodia and has a predominant climate type known as Tropical wet and dry or savanna, according to the Köppen climate classification. The weather here typically shows pronounced seasonal variations in both temperature and rainfall throughout the year.The annual temperatures in Krong Siem Reap generally range from 19°C (66.2°F) to 36°C (96.8°F). The cooler conditions, with temperatures between 19°C (66.2°F) and 31°C (87.8°F), occur in December. By contrast, the hottest period, with high temperatures from 36°C (96.8°F) to 36°C (96.8°F), occurs from March to April. There are slight variations in temperature throughout the year, but the average high stays above 30°C (86°F), providing a consistently warm climate.
A significant feature of the weather here is the rainfall variations throughout the year. The driest month is January with a minimal rainfall of 1mm (0.04"), while the wettest month, with a rainfall from 250mm (9.84"), is observed in September. On average, the city experiences rainfall on 18 days in August, September, and July, while only a single day with rainfall occurs in January.
The city also experiences varied sunlight hours in a year. From 12.4 hours in April to 11.3 hours in December, the daylight hours prominently change with the progress of the months.
The Best Time to Visit Krong Siem Reap
Considering the weather parameters like temperature, rainfall, and sunshine hours, the ideal period to plan a visit to Krong Siem Reap would be from November to February. During these months, temperatures range from 20°C (68°F) to 34°C (93.2°F), providing comfortable weather suitable for outdoor activities. In addition, these months witness less rainfall, between 1mm (0.04") and 61mm (2.4") which significantly reduces the possibility of facing rain-induced disruptions.The Worst Time to Visit Krong Siem Reap
The period from May to October proves to be the least favourable time to visit Krong Siem Reap. During these months, the city faces the highest rainfall ranging from 146mm (5.75") to 250mm (9.84"). Also, the number of days with rainfall is remarkably high, with up to 18 rainy days in a month. Additionally, the peak of summer, from 33°C (91.4°F) to 36°C (96.8°F), occurs during these months, which when combined with high humidity due to frequent rain, might cause discomfort to visitors.Spring Weather in Krong Siem Reap
The spring season in Krong Siem Reap, from March to May, experiences a rise in both temperature and rainfall. Throughout these months, the minimum temperature ranges from 23°C (73.4°F) to 25°C (77°F) and the maximum temperature varies from 34°C (93.2°F) to 36°C (96.8°F). With the increase in temperature, the rainfall also goes up, with March recording 28mm (1.1") rainfall which further increases to 64mm (2.52") in April and reaches its peak at 146mm (5.75") by May.Summer Weather in Krong Siem Reap
Summer in Krong Siem Reap, from June to August, is marked by the highest rainfall and relatively high temperature. The temperature during these months falls from 36°C (96.8°F) to 32°C (89.6°F) while the minimum temperature remains consistent at 24°C (75.2°F). Rainfall during this period escalates, starting from 166mm (6.54") in June to 224mm (8.82") in August.Autumn Weather in Krong Siem Reap
Autumn, from September to November, sees a slow decrease in both rainfall and temperature. The highest temperature falls from 31°C (87.8°F) to 31°C (87.8°F), and the low temperature decreases minimally from 24°C (75.2°F) to 22°C (71.6°F). Rainfall decreases from 250mm (9.84") in September to 61mm (2.4") by November.Winter Weather in Krong Siem Reap
Winter in Krong Siem Reap, from December to February, experiences the lowest temperatures and minimal rainfall. During this period, the high temperature moderates from 30°C (86°F) to 31°C (87.8°F) and low temperature ranges from 20°C (68°F) to 21°C (69.8°F). With rainfall from 7mm (0.28") in December to 1mm (0.04") in January and 9mm (0.35") in February, this period marks the driest months.Weather in January
Provincial atmosphere during January in Krong Siem Reap, Cambodia, mainly includes warm days with the highest temperatures of the year reaching from 31°C (87.8°F) to 34°C (93.2°F). As the kick-off month of the year, January ushers in the new year with minimal rainfall - it’s the driest month up until this point, only seeing up to 1mm (0.04") of rain. Weather in January »Weather in February
Transitioning onward from January into February, the dry season in Krong Siem Reap endures with relatively warmer days. The second month of the year marks the earliest signs of the gradually elevating temperature range of the dry season, which scales up later in the year. Weather in February »Weather in March
Navigating onto March, the climate in Krong Siem Reap showcases a blend of warmth and precipitation. Monotonously reflecting a pattern established over the preceding months, March perpetuates moderate temperatures. Markedly different, though, is an emergent increase in precipitation compared to February’s levels - monthly rainfall hits a median of 28mm (1.1"). Weather in March »Weather in April
As heat builds in April, weather conditions in Krong Siem Reap, Cambodia noticeably change. April boasts of a slight increase in temperature, side-by-side with an escalated precipitation which is almost twice March's level, reaching up to 64mm (2.52"). Weather in April »Weather in May
Like a prelude to the upcoming wet season, May sees substantial changes in Krong Siem Reap's climate parameters. From a temperature standpoint, it continues the increasing trend from April, hitting the highest mark yet this year. However, a more dramatically shifting element is rain count - a significant jump from the preceding month sees May receive up to 146mm (5.75") of precipitation. Weather in May »Weather in June
Being in the thick of the wet season, June in this Cambodian municipality experiences weather akin to May's. Despite slightly lower temperatures, the month sees the highest rainfall volume of the year, with up to 166mm (6.54"). Fittingly, the rainy season is in full swing now, calling for suitable arrangements for torrential downpours particularly during afternoons and early evenings. Weather in June »Weather in July
July maintains the damp weather associated with the rainy season in Krong Siem Reap. While the temperature profile mirrors that of June, rainfall volume witnesses a slight rise, registering at 186mm (7.32") for the month. Equally, a marginally extended rainy duration makes this month wetter than any of the preceding months. Weather in July »Weather in August
Moving into the year's latter half, August largely brings constant weather conditions to Krong Siem Reap. Holding steady in temperature, August sees an elevated rainfall volume from 186mm (7.32") to 224mm (8.82"). Emphasizing the continuation of the monsoon season, the overall environment remains very wet, with overcast skies and heavy afternoon rains being typical. Weather in August »Weather in September
September stands as the wettest month, climatologically, in Krong Siem Reap. Presented as a continuation of August's trend, September's weather characteristics include similar temperature ranges. However, one striking difference is in precipitation, with rainfall reaching a yearly high of 250mm (9.84"). Weather in September »Weather in October
The weather starts transitioning in October, marking the onset of a shift from the rainy to the dry season in Krong Siem Reap. October’s atmospheric profile—in accordance with the forthcoming dry season—exhibits lower rain volumes, retreating from September’s peak to 215mm (8.46"). Weather in October »Weather in November
November sees a further reduction in the wet season elements in Krong Siem Reap, where dry season characteristics become more pronounced. This drying out is evident in the declining rainfall from October's 215mm (8.46") to just 61mm (2.4") - the most drastic drop of the entire year. Weather in November »Weather in December
Closing out the year, December represents a pretty straightforward weather outlook in Krong Siem Reap. This month indicates the full onset of the dry season, with a significant drop in rainfall reaching its lowest point of just 7mm (0.28"). Weather in December »Updated: Aug 19, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the least rainfall is January, when the rain falls for 1 days and typically collects 1mm (0.04") of precipitation.
Throughout the year, there are 121 rainfall days, and 1357mm (53.43") of precipitation is accumulated.
The months with the most sunshine are January, February and December, with an average of 9h of sunshine.
The months with the highest UV index in Krong Siem Reap are February through September, with an average maximum UV index of 12.
During March and April, Krong Siem Reap experiences its average highest temperatures, peaking at 36°C (96.8°F).
The month with the longest days is June, with an average of 12h and 54min of daylight.
August and September, with an average of 5h of sunshine, are months with the least sunshine.
September is the month with the most rainfall. Rain falls for 18 days and accumulates 250mm (9.84") of precipitation.
December is the coldest month of the year, registering average temperatures as high as 30°C (86°F) and as low as 20°C (68°F).
With an average of 11h and 24min of daylight, December has the shortest days of the year in Krong Siem Reap.
Krong Siem Reap does not utilize Daylight Saving Time (DST). +07 timezone is used throughout the entire year.
The month with the lowest UV index in Krong Siem Reap, Cambodia, is December, with an average maximum UV index of 9.
Average temperature
Krong Siem Reap, Cambodia
The warmest months (with the highest average high temperature) are March and April (36°C).
The month with the lowest average high temperature is December (30°C).
The month with the highest average low temperature is May (25°C).
The coldest month (with the lowest average low temperature) is January (19°C).
Average rainfall
Krong Siem Reap, Cambodia
The wettest month (with the highest rainfall) is September (250mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days
Krong Siem Reap, Cambodia
- Average rainfall days in January:
1 days - Average rainfall days in February:
2 days - Average rainfall days in March:
4 days - Average rainfall days in April:
7 days - Average rainfall days in May:
15 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
18 days - Average rainfall days in September:
18 days - Average rainfall days in October:
15 days - Average rainfall days in November:
6 days - Average rainfall days in December:
2 days
The months with the highest number of rainy days are July, August and September (18 days).
The month with the least rainy days is January (1 days).
Average daylight / Average sunshine
Krong Siem Reap, Cambodia
- Average daylight in January:
11h and 24min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 42min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 36min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 30min - Average daylight in December:
11h and 24min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
The months with the most sunshine are January, February and December (Average sunshine: 9h).
The months with the least sunshine are August and September (Average sunshine: 5h).
Average UV index
Krong Siem Reap, Cambodia
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).
