Last updated: August 28, 2025
August in Mong Cai, Vietnam showcases a warm tropical climate, with maximum temperatures reaching 33°C (91°F) and an average of 29°C (84°F). The month is characterized by high humidity levels, averaging 86%, and abundant rainfall, accumulating 469 mm (18.5 in) over 26 days. These conditions create a lush environment, making it an ideal time for nature enthusiasts to explore the vibrant surroundings, though visitors should be prepared for the frequent showers typical of this season.
In August, Mong Cai experiences warm and humid conditions, with temperatures typically ranging from a minimum of 25°C (78°F) to a maximum of 33°C (91°F), maintaining a steady average of 29°C (84°F). This trend showcases a noticeable warmth as summer reaches its peak, continuing a pattern seen in the preceding months of June and July. It's evident that temperatures are climbing, with August mirroring the warmth of July but indicating a slight dip in the minimum temperatures compared to earlier summer months. Travelers can expect balmy days, making it an ideal time for beach visits and outdoor activities, as the city's vibrant culture thrives under the sun.
In August, Mong Cai experiences a significant surge in precipitation, recording an impressive 469 mm (18.5 in) of rain over 26 days. This marks the peak of the rainy season, as the city transitions from the earlier months of June and July, which also bring substantial rainfall, but not quite as intense. The upward trend in precipitation from January’s modest 62 mm (2.4 in) to August’s peak highlights the region's wet season, with rainfall steadily increasing as summer progresses. Each month witnesses a rise in both total rainfall and rainy days, creating a lush landscape that defines Mong Cai during this period. As the year unfolds, August stands out not only for its volume of rain but also for its role in sustaining the local ecosystem amidst the backdrop of Vietnam's vibrant weather patterns.
In Mong Cai, Vietnam, August marks the peak of humidity, with levels reaching a steamy 86%—a figure that mirrors July's oppressive conditions. This month, along with July, represents the culmination of a gradual increase in moisture that begins in early spring. Starting at 66% in January, humidity steadily climbs, peaking during the warm summer months, where daily discomfort is palpable. As the year progresses into September, humidity begins to taper off to 78%, hinting at the transition into drier fall months. This trend illustrates Mong Cai’s tropical climate, characterized by lush vegetation and high humidity throughout the sweltering summer.
In August, Mong Cai experiences a peak UV Index of 14, placing it in the extreme exposure category with a dangerously short burn time of just 10 minutes. This marks a continuation of the trend observed from July, where the UV Index also reached 14. The intensity of UV radiation remains elevated throughout the summer months, with the indices consistently hovering between 13 and 14 from June to September. As the mercury rises, the need for effective sun protection becomes crucial, particularly during these peak months. For more information on UV trends in Mong Cai, visit Mong Cai UV Index.
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In Mong Cai, Vietnam, August shines with an impressive 271 hours of sunlight, contributing to the region's vibrant summer atmosphere. This month stands out as part of a seasonal trend where the sun really starts to make its presence felt, following a series of brighter months from May to July, which boast over 290 hours of sunshine each. Although August sees a slight dip compared to July's peak, it still remains well-above average, ensuring plenty of opportunities for outdoor activities and exploration. As the transition into September approaches, the sun continues to grace Mong Cai, hinting at a delightful end to summer with 287 hours of expected sunshine.
In Mong Cai, Vietnam, August is characterized by a notably low 11% chance of sunny weather, marking it as one of the cloudiest months of the year. This decline in sunshine follows a trend observed from earlier months, where the chances steadily decrease from 25% in July to an even lower probability in August. Interestingly, the weather begins to brighten again in September, where the likelihood of sun climbs back to 32%. Thus, if you’re planning a visit during August, be prepared for overcast skies and potential rain, as the summer sun takes a considerable break.
In Mong Cai, Vietnam, the daylight duration exhibits a captivating rhythm throughout the year. Starting from 10 hours in January, the days gradually lengthen, reaching a peak of 13 hours in both May and June. This surge in daylight heralds the vibrant summer months, allowing more time for outdoor activities and exploration. As the season transitions into August, the daylight slightly wanes to 12 hours, mirroring the gradual shift towards autumn. Following this, September maintains the same duration, while October and November see a return to shorter days, falling back to 11 hours. This cyclical pattern not only influences the local lifestyle but also reflects the region's dynamic climate changes, creating a harmonious balance between light and dark throughout the year.
In August, Mong Cai experiences a gentle breeze with an average wind speed of 3.1 m/s (7 mph), marking a slight dip from the more robust winds seen in the summer months of June and July. This transitional period hints at the shifting seasons, as the winds begin to calm after peaking in May and June when they reached 4.6 m/s (10 mph). As autumn approaches, the wind tends to soften even further in September, dropping to 2.3 m/s (5 mph). However, those looking for a brisker experience need not wait long, as the winds pick up again in October with an invigorating average of 6.0 m/s (13 mph). The rhythm of the wind in Mong Cai reflects the region's dynamic climate, offering a unique experience each month.
Weather in Mong Cai varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Mong Cai, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather. In August, temperatures are significantly higher, ranging from a minimum of 25°C (78°F) to a maximum of 33°C (91°F), with an average of 29°C (84°F). This month also experiences substantial rainfall, with 469 mm (18.5 in) of precipitation spread over 26 days and high humidity at 86%. In contrast, January offers cooler conditions, with temperatures spanning from a minimum of 7°C (45°F) to a maximum of 23°C (73°F), averaging 16°C (61°F). Precipitation is markedly lower, with only 62 mm (2.4 in) falling over 10 days and humidity at a more comfortable 66%. For a more detailed look at weather specifics, check out Mong Cai weather in January.
August and February display markedly different weather patterns. In August, temperatures are significantly warmer, with a minimum of 25°C (78°F) and an average around 29°C (84°F), peaking at 33°C (91°F). The month is characterized by high humidity at 86% and considerable rainfall, totaling 469 mm (18.5 in) over 26 days. In contrast, February offers a much cooler climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 24°C (75°F), and an average of 17°C (63°F). This month experiences much less precipitation, with only 62 mm (2.5 in) over 11 days, and lower humidity at 71%. For more details about February weather in this region, check out Mong Cai weather in February.
The weather in August is considerably warmer and more humid compared to March. In August, temperatures range from a minimum of 25°C (78°F) to a maximum of 33°C (91°F), with an average of 29°C (84°F), accompanied by high humidity levels at 86%. In contrast, March offers a milder climate, with temperatures between 14°C (57°F) and 26°C (80°F), averaging at 21°C (69°F), and a lower humidity of 73%. Additionally, August experiences significantly more precipitation, with 469 mm (18.5 in) over 26 days, while March sees only 84 mm (3.3 in) across 15 days. For more details on March weather in the region, visit Mong Cai weather in March.
When comparing the weather in August and April, distinct differences become evident. August typically features much warmer temperatures, with averages around 29°C (84°F) and maximums reaching up to 33°C (91°F), while April exhibits milder conditions, averaging 23°C (74°F) with a maximum of 29°C (85°F). Additionally, August is marked by significantly higher precipitation, with 469 mm (18.5 in) over approximately 26 days, compared to April's 86 mm (3.4 in) over 14 days. The humidity in August also tends to be higher, averaging around 86%, compared to 71% in April. For a more detailed look at April's weather, you can visit Mong Cai weather in April.
When comparing the weather of August and May, notable differences emerge in both temperature and precipitation. August experiences higher temperatures, with minimums around 25°C (78°F) and maximums reaching 33°C (91°F), compared to May's more moderate range of 19°C (67°F) to 32°C (90°F). Additionally, August is characterized by significantly increased rainfall, with an average of 469 mm (18.5 in) over 26 days, as opposed to May's 190 mm (7.5 in) across 19 days. The humidity is also higher in August at 86%, while May maintains a lower average of 76%. For a detailed look at the weather patterns in May, you can visit Mong Cai weather in May.
When comparing the weather in August and June, both months exhibit an average temperature of 29°C (84°F), but August tends to have slightly higher minimum and maximum temperatures, with lows around 25°C (78°F) and highs reaching up to 33°C (91°F). In contrast, June's minimum temperature is 23°C (74°F) and it peaks at 33°C (92°F). Precipitation levels are significantly higher in August, with 469 mm (18.5 in) over 26 days, compared to June's 265 mm (10.4 in) over 23 days, contributing to August's higher humidity at 86% versus June's 79%. For more detailed insights about the weather specifics in June, you can refer to Mong Cai weather in June.
In comparing the weather of August and July, both months exhibit similar temperature ranges, with an average temperature of 29°C (84°F) and maximums reaching 33°C (91°F). However, August experiences slightly more rainfall, totaling 469 mm (18.5 in) over 26 days, compared to July's 364 mm (14.3 in) over 25 days. Interestingly, both months maintain the same humidity level of 86%. For a deeper look at July's weather specifics, you can check Mong Cai weather in July.
August generally experiences warmer temperatures compared to September, with minimums of 25°C (78°F) in August versus 24°C (75°F) in September. The average temperature remains relatively high in both months, peaking at 29°C (84°F) in August and dropping slightly to 28°C (83°F) in September. Notably, August is significantly wetter, receiving 469 mm (18.5 in) of precipitation over 26 days, while September sees much less rainfall at 256 mm (10.1 in) across 21 days. Additionally, the humidity in August is higher at 86%, compared to September's 78%. This shift indicates a gradual transition from the peak rainy season in August to relatively drier conditions in September. For more detailed weather insights, check out Mong Cai weather in September.
August and October present a noticeable contrast in weather conditions. August tends to be significantly hotter and more humid, with average temperatures around 29°C (84°F) and humidity levels reaching 86%. This month also experiences substantial rainfall, totaling 469 mm (18.5 in) over 26 days. In comparison, October offers a more moderate climate, with average temperatures dropping to 25°C (77°F) and diminished humidity at 72%. Additionally, the precipitation decreases to 206 mm (8.1 in) over just 14 days, making October a drier month than August. For more detailed insights, you can explore Mong Cai weather in October.
August and November present significantly different weather patterns. In August, temperatures soar with a minimum of 25°C (78°F) and averaging around 29°C (84°F), often reaching up to 33°C (91°F). This month is also characterized by high humidity levels at 86% and substantial rainfall, accumulating 469 mm (18.5 in) over 26 days. In contrast, November offers a much cooler climate, with temperatures ranging from a minimum of 12°C (54°F) to an average of 22°C (71°F) and a maximum of 28°C (82°F). The precipitation drops dramatically to 47 mm (1.8 in) across just 8 days, and humidity levels decrease to 69%. For a more detailed look at the weather in November, you can check Mong Cai weather in November.
In August, the weather is characterized by high temperatures, with a minimum of 25°C (78°F) and an average of 29°C (84°F), peaking at a maximum of 33°C (91°F). This month is also marked by significant rainfall, totaling 469 mm (18.5 in) over 26 rainy days, accompanied by high humidity levels at 86%. In contrast, December brings a much cooler climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 25°C (78°F), averaging 17°C (63°F). The precipitation is considerably lower at 55 mm (2.2 in) over just 10 days, and humidity levels drop to 70%. For a detailed look at what to expect during December, you can visit Mong Cai weather in December.
August in Mong Cai brings a notable shift in weather patterns, featuring higher temperatures and significant humidity, creating a sultry atmosphere throughout the month. With frequent rainfall over nearly every day, the landscape transforms into a lush green haven. The combination of warm days and abundant precipitation sets August apart from the drier, cooler months, making it a unique time for both nature and adventure seekers. For a deeper insight into Mong Cai's climate throughout the year, explore Mong Cai Climate.