Last updated: August 21, 2025
In January, the weather in Phnom Penh, Cambodia is characterized by warm temperatures and moderate humidity, making it an ideal time to explore the city. With a maximum temperature reaching up to 36°C (96°F) and an average of 27°C (82°F), visitors can expect plenty of sunshine. Nighttime offers a refreshing drop to a minimum of 19°C (66°F), providing comfortable evenings. Although precipitation is relatively low at 19 mm (0.8 in) over just 3 days, humidity levels hover around 62%, contributing to the tropical atmosphere. Whether you're strolling along the riverside or visiting historical sites, January's weather enhances the vibrant experience of Cambodia's capital.
In January, Phnom Penh experiences a delightful climate that marks the transition into the dry season. With temperatures ranging from a comfortable 19°C (66°F) at night to a warm 36°C (96°F) during the day, the average temperature settles at around 27°C (82°F), providing pleasant conditions for both locals and visitors alike. As the month progresses into February, the city sees a slight rise in nighttime temperatures to 20°C (68°F), while daytime highs remain steady at 36°C (98°F). This warmth continues into the following months, with March and April reflecting an upward trend, where temperatures soar, peaking at 39°C (102°F). The changing dynamics reveal a consistent increase in warmth as spring approaches, ultimately leading towards the hotter months of May and June. While January offers a delightful reprieve from the sweltering heat that follows, it sets the stage for the balmy climate typical of Phnom Penh, making it an inviting time to explore this vibrant capital.
In January, Phnom Penh experiences relatively low precipitation, with only 19 mm (0.8 in) falling over just three days. This marks the start of the dry season, as the city transitions from the wet months of late monsoon. The light rainfall is a stark contrast to the upcoming months, where precipitation begins to rise sharply—March sees a jump to 30 mm, before an overwhelming 78 mm in April. This trend continues, peaking in mid-year with August and September both recording around 246 mm (9.7 in), indicating that Phnom Penh's wet season is just around the corner. As the year progresses, the number of rainy days increases significantly, reaching its height in the heart of the rainy season. Thus, January serves as a gentle precursor to the more intense and frequent rainfall that follows.
In January, Phnom Penh experiences a comfortable humidity level of 62%, setting a pleasant tone for the month. This relatively moderate humidity is part of a gradual rising trend that begins with the dry months of the year; as February and March see only slight decreases to 61%, they maintain a similar atmosphere. However, the weather shifts noticeably in April, when humidity climbs to 67%, heralding the onset of the wet season. The transition becomes more pronounced as the year progresses, with humidity levels soaring to 78% in May and reaching a peak of 88% by August. By the end of the year, the humidity tapers off, with December closing at 76%, but the overall trajectory clearly illustrates that Phnom Penh’s climate evolves dramatically as it approaches the monsoon season.
In January, Phnom Penh experiences a very high UV Index of 10, with a burn time of just 15 minutes under direct sunlight. This sets the stage for a month that gradually intensifies, as UV levels skyrocket to 14 in February and stabilize at a striking 15 from March through April. Throughout the subsequent months of May to September, the Index remains in the extreme range, hovering around 14, while burn times shrink to a mere 10 minutes—a stark reminder of the region’s relentless sun. Even as the year draws to a close, UV levels remain notably elevated, with values of 11 in November and returning to 10 in December, marking a consistent pattern of high UV exposure year-round. For those planning outdoor activities, it’s crucial to stay informed about the sun's intensity. To learn more, check the detailed Phnom Penh UV Index.
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January in Phnom Penh welcomes visitors with an impressive 257 hours of sunshine, setting the tone for a radiant year ahead. As the months progress, the city basks in even more sunlight, peaking in March with a delightful 329 hours. This trend showcases a steady increase in sunshine hours, creating an inviting atmosphere for both locals and tourists. April and May maintain the vibrant glow with 312 hours, while June and July still offer ample light, though slightly less at 283 and 287 hours, respectively. The remainder of the year sees fluctuations, but November and December remain bright with 289 and 307 hours. Overall, Phnom Penh’s January sunshine is just the beginning of a beautiful journey through a year filled with light.
In Phnom Penh, Cambodia, January offers a moderate 36% chance of sunny weather, setting the stage for a pleasant start to the year. This month marks a contrast to February and March, which see significantly higher sunshine probabilities of 60% and 55%, respectively. However, as the year progresses towards the sweltering summer months, the likelihood of sun begins to decline sharply, with April dropping to 32% and May following suit at 25%. The rainy season that looms in the following months further diminishes sunshine, hitting lows of 9% in August and 15% in July. Interestingly, by the year's end, January's sunny prospects appear to circle back to 36%, mirroring its beginning, which highlights a cyclical pattern of sunshine that characterizes Phnom Penh's tropical climate.
In Phnom Penh, Cambodia, January heralds the beginning of a year with a consistent daylight duration of 11 hours, a pattern that continues into February. As the days lengthen towards March, residents can enjoy an additional hour of sunlight, leading to 12 hours of daylight from March through September. This extended daylight period not only enhances outdoor activities but also contributes to the vibrant atmosphere of the city. As October approaches, daylight gradually wanes again, returning to 11 hours per day from October to December. This cyclical rhythm of light throughout the year offers a glimpse into the harmonious blend of life and nature in Cambodia’s capital, with longer days inviting exploration and shorter ones providing a time for rest.
In January, Phnom Penh enjoys a refreshing average wind speed of 2.8 m/s (6 mph), marking it as one of the windier months of the year alongside June and July. Shortly after this brisk start, the winds start to calm down through February and March, dropping to 2.1 m/s (5 mph) and 2.3 m/s (5 mph), respectively. This gentle breeze creates a pleasant atmosphere, perfect for exploring the city's vibrant street life. As the dry season progresses into April and May, the winds further subside, reaching a low of 1.8 m/s (4 mph). Interestingly, there's a gentle resurgence of wind in the latter half of the year, particularly in November with 2.5 m/s (6 mph), as the transition to a cooler, more comfortable climate begins. Overall, January stands out as a gateway to a month of moderate winds, soothing the tropical heat and inviting outdoor adventures.
Weather in Phnom Penh varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Phnom Penh, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, we see a slight increase in temperature, with February averaging 28°C (83°F), up from January's 27°C (82°F). The minimum temperature in February is also a bit higher at 20°C (68°F), while the maximum remains steady at 36°C (98°F). February experiences significantly less precipitation, with just 10 mm (0.4 in) falling over 2 days, compared to January's 19 mm (0.8 in) over 3 days. Humidity levels are quite similar, with February at 61% and January at 62%. For more detailed weather information, you can check Phnom Penh weather in February.
In January, the weather in Phnom Penh typically features a minimum temperature of 19°C (66°F) and an average high of 36°C (96°F), with relatively low precipitation of 19 mm (0.8 in) over just three days and humidity around 62%. By March, temperatures rise slightly, with a minimum of 23°C (74°F) and a maximum reaching 39°C (102°F). Precipitation also increases to 30 mm (1.2 in) over five days, while humidity remains comparable at 61%. For more specific information on March weather, you can check Phnom Penh weather in March.
In January, the weather in Phnom Penh is characterized by moderately warm temperatures, with an average of 27°C (82°F), minimal rainfall of just 19 mm (0.8 in) over three days, and a humidity level of 62%. In contrast, April sees a noticeable increase in temperature and precipitation; the average temperature rises to 30°C (87°F) with maximums reaching up to 39°C (103°F). April experiences significantly more rainfall, totaling 78 mm (3.1 in) across 14 days, and slightly higher humidity at 67%. For more detailed information, check Phnom Penh weather in April.
In January, the weather in Phnom Penh features a pleasant temperature range, with minimums around 19°C (66°F) and maximums reaching up to 36°C (96°F). Precipitation is relatively low, averaging 19 mm (0.8 in) over just three days, and humidity sits at a comfortable 62%. In contrast, May brings significantly warmer conditions, with minimum temperatures rising to 24°C (76°F) and highs soaring to 40°C (104°F). This month also sees a dramatic increase in rainfall, totaling 155 mm (6.1 in) over 23 days, accompanied by higher humidity levels at 78%. For more information, you can visit Phnom Penh weather in May.
In January, the weather is characterized by warmer temperatures, with daily averages around 27°C (82°F) and maximum highs reaching up to 36°C (96°F). It experiences minimal rainfall, totaling only 19 mm (0.8 in) across just 3 days, while humidity sits at a comfortable 62%. In contrast, June sees a substantial increase in precipitation, with 155 mm (6.1 in) falling over 24 days, resulting in a much more humid environment with an average humidity of 84%. The temperatures remain relatively warm, with averages around 29°C (85°F) and maximums climbing to 37°C (99°F). For those interested in more specific June conditions, detailed information is available at Phnom Penh weather in June.
In January, the weather is generally warm with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 36°C (96°F), and an average of 27°C (82°F). The month sees relatively low precipitation at 19 mm (0.8 in) over just three days, with humidity around 62%. In contrast, July experiences higher temperatures, with minimums of 25°C (77°F) and maximums reaching 38°C (100°F), averaging 29°C (84°F). However, this month is significantly wetter, with 154 mm (6.1 in) of rain falling on about 25 days, coupled with increased humidity at 86%. For more detailed information, you can check Phnom Penh weather in July.
In January, the weather in Phnom Penh features milder temperatures, with minimums around 19°C (66°F) and average highs of 36°C (96°F). Precipitation is low, averaging only 19 mm (0.8 in) over just three days, and humidity is comfortable at 62%. In contrast, August sees warmer nights with a minimum temperature of 25°C (77°F) and slightly higher average temperatures, reaching 36°C (98°F) at its peak. This month is significantly wetter, with a substantial 197 mm (7.7 in) of rainfall spread across 26 days and increased humidity levels at 88%. For more detailed information, visit Phnom Penh weather in August.
When comparing the weather in January and September, it's clear there are significant differences. January experiences warmer average temperatures, with a minimum of 19°C (66°F) and a maximum of 36°C (96°F), along with relatively low precipitation at 19 mm and just 3 rainy days, combined with a moderate humidity of 62%. In contrast, September brings a higher minimum temperature of 24°C (76°F) but remains slightly lower on average at 28°C (83°F). However, it is characterized by considerably more rain, totaling 246 mm over 26 days, and higher humidity levels of 87%. For a more detailed comparison of the weather in September, check out Phnom Penh weather in September.
In January, the weather in Phnom Penh tends to be warm and relatively dry, with average temperatures ranging from a comfortable 27°C (82°F) to a maximum of 36°C (96°F). During this month, the city experiences minimal precipitation, with only 19 mm (0.8 in) over about 3 days, and humidity levels hover around 62%.
In contrast, October brings a noticeable shift in weather patterns, as temperatures are slightly warmer, averaging 28°C (83°F) and peaking at 35°C (95°F). However, this month is significantly wetter, with a substantial 246 mm (9.7 in) of rain spread over 24 days, resulting in higher humidity levels of 84%. For more detailed insights, you can visit Phnom Penh weather in October.
When comparing the weather in January and November, January tends to be slightly cooler with a minimum temperature of 19°C (66°F) and a maximum of 36°C (96°F), while November sees slightly higher lows at 22°C (71°F) and a maximum of 35°C (95°F). Both months average around 27°C (82°F), but November experiences significantly more rainfall, with 121 mm (4.8 in) over 15 days, compared to January's 19 mm (0.8 in) over just 3 days. Additionally, November has a higher humidity level at 84%, compared to January's 62%. For more details, you can check Phnom Penh weather in November.
In January, the weather in Phnom Penh presents slightly warmer conditions compared to December, with average temperatures around 27°C (82°F) and maximums reaching up to 36°C (96°F). While January sees a similar minimum temperature of 19°C (66°F), it experiences less precipitation, totaling only 19 mm (0.8 in) over just 3 days. In contrast, December has a higher precipitation level of 40 mm (1.6 in) spread across 5 days, contributing to an increase in humidity at 76%. This makes January generally drier and more comfortable, especially for those keen on outdoor activities. For more details, you can visit Phnom Penh weather in December.
In January, Phnom Penh experiences pleasantly warm temperatures that make it stand out from the hotter months that follow. With average highs around 36°C (96°F) and lows dipping to 19°C (66°F), this month offers a comfortable respite for visitors and locals alike. Unlike the heavy rains that characterize the wet season, January enjoys only a few precipitation days, contributing to a refreshing humidity level of 62%. This combination of warm, dry weather makes January an ideal time to explore the vibrant city. For a more detailed understanding of what to expect throughout the year, visit Phnom Penh Climate.