Last updated: August 28, 2025
October in Mong Cai, Vietnam offers a blend of warm temperatures and vibrant rainfall. Average daily temperatures hover around 25°C (77°F), peaking at a maximum of 32°C (90°F) and dipping to a minimum of 18°C (65°F). This month also brings significant precipitation, with 206 mm (8.1 in) of rain falling across approximately 14 days, contributing to a humidity level of 72%. As the region transitions into the late rainy season, expect a lush, green landscape accentuated by the refreshing showers, perfect for exploring the natural beauty and local culture.
In October, Mong Cai, Vietnam, experiences a delightful transition in temperatures, marking the shift from the warmer months to a more temperate climate. With minimum temperatures around 18°C (65°F) and averages reaching 25°C (77°F), it's a comfortable time for outdoor activities. The maximums can climb to 32°C (90°F), offering warm, sunny days perfect for exploring the lush landscapes. This month stands out as a sweet spot in the annual cycle, with temperatures noticeably cooler than the peak heat of summer but still warm enough to embrace the balmy days of autumn. The overall trend shows a gradual cooling from the hot summer months, making October an inviting time for visitors eager to enjoy the vibrant charm of Mong Cai.
In October, Mong Cai experiences a noteworthy shift in its precipitation pattern, receiving 206 mm (8.1 in) of rain over 14 days. This marks a decline from the peak wet months of July and August, which can both top 360 mm, yet it remains significantly higher than the drier months that follow, such as November and December. The rain in October enriches the landscape, providing a refreshing end to the wet season, while also laying the groundwork for the upcoming cooler and drier months ahead. As the region transitions, the overall moisture content begins to taper off, hinting at the cyclical nature of Mong Cai's climate, balancing abundant rainfall with drier interludes.
In October, Mong Cai, Vietnam experiences a drop in humidity to 72%, marking a slight respite from the high humidity levels of the preceding summer months. Throughout the year, humidity levels peak during July and August at an impressive 86%, creating a backdrop of tropical heat. As the year progresses, September sees a decline to 78%, hinting at the transition towards drier conditions. This pattern of fluctuating humidity underscores the distinct seasons in Mong Cai, where the lush, humid summers gradually yield to more comfortable, crisp autumn days as October arrives, providing a refreshing change for both residents and visitors alike.
In October, Mong Cai experiences a UV Index of 11, categorized as extreme, necessitating careful sun protection with a relatively short burn time of just 10 minutes. As the month follows a trend of high UV levels, it marks a slight decline from the peak observed in July and August, where the index reached an intense 14. However, the consistent extremes from March to September indicate that sun safety measures remain crucial throughout the period. Travelers and locals alike should remain vigilant, as exposure can lead to quick skin damage. For more details on current and upcoming UV conditions, visit Mong Cai UV Index.
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In October, Mong Cai, Vietnam enjoys a healthy dose of sunshine, with 265 hours of bright skies lighting up the city. This follows a vibrant summer, where months of May through July basked in the most sun, reaching peaks of over 300 hours. As autumn sets in, October continues to retain substantial sunshine, although slightly less than the previous month of September, which boasted 287 hours. The gradual decline in sunlight begins to echo the transition into the milder, cooler months of November and December. After the summer exuberance, October stands as a reminder of the pleasant, lingering warmth before the encroaching chill, making it a delightful time for both locals and visitors to savor the golden rays of sunlight.
As October unfolds in Mong Cai, Vietnam, the likelihood of sunny weather hovers around 35%, offering a modest chance for enjoying clear skies. This figure aligns with the generally unpredictable weather patterns of the region, displaying a slight increase from the dreariness of the summer months, where chances dip to as low as 11% in August. Following the relatively sunnier months of January through March, October presents a transitional period, hinting at the return of clearer days leading into the end of the year. While October may not shine as bright as neighboring months like November or December, it still invites optimism with a substantial probability of sunlit moments amid the autumn backdrop.
In Mong Cai, Vietnam, the daylight duration experiences a notable rhythm throughout the year, reflecting the region's seasonal transitions. Starting with a modest 10 hours in January, daylight gradually increases to a peak of 13 hours from May through July, offering longer, sunlit days perfect for outdoor activities. As summer wanes, the days shorten slightly, with 12 hours in August and September. By October, daylight returns to 11 hours, indicating the onset of the cooler months. This trend continues into November, before reaching another low at 10 hours in December. The cyclical pattern of daylight not only shapes the daily life in Mong Cai but also highlights the beauty of nature's transitions throughout the seasons.
As October rolls into Mong Cai, Vietnam, the landscape is invigorated by a notable shift in wind dynamics. With an average wind speed soaring to 6.0 m/s (13 mph), October stands out as the month with the strongest breezes of the year, a stark contrast to the calm of September’s 2.3 m/s (5 mph). This marked increase signals a transition, taking over from the more subdued months of summer. Throughout the year, wind speeds fluctuate, but October's gusts breathe fresh life into the region, making it an ideal time for outdoor activities and an opportunity to relish the invigorating nature of the season. The heightened winds are not just a seasonal nuance; they set the stage for a vibrant atmosphere, drawing locals and visitors alike to embrace the crisp energy of autumn in this charming coastal town.
Weather in Mong Cai varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Mong Cai, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather conditions. In October, temperatures range from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), averaging around 25°C (77°F). The month experiences significant rainfall, with about 206 mm (8.1 in) spread over 14 days and an average humidity level of 72%. In stark contrast, January offers cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 23°C (73°F), averaging 16°C (61°F). Rainfall during this month is considerably lower at 62 mm (2.4 in) over 10 days, with humidity at a reduced level of 66%. For more details about the weather in January, you can visit Mong Cai weather in January.
October and February present contrasting weather patterns. In October, temperatures range from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), with an average of 25°C (77°F). This month also sees considerable rainfall, with 206 mm (8.1 in) over 14 days, creating a humid environment with humidity levels around 72%. In contrast, February experiences cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 24°C (75°F), averaging 17°C (63°F). Rainfall is notably less in February, with only 62 mm (2.5 in) over 11 days and a similarly mild humidity level of 71%. For more specifics on the climate during this month, you can refer to Mong Cai weather in February.
When comparing the weather in October and March, October tends to be warmer with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), while March presents milder conditions with temperatures from 14°C (57°F) to 26°C (80°F). October also receives significantly more precipitation, totaling 206 mm (8.1 in) across 14 days, compared to March's 84 mm (3.3 in) over 15 days. Both months exhibit high humidity, with March being slightly higher at 73% versus October's 72%. For a detailed look at March conditions, you can refer to Mong Cai weather in March.
In comparing the weather of October and April, October generally experiences warmer temperatures, with an average of 25°C (77°F) and highs reaching up to 32°C (90°F), while April has a milder average of 23°C (74°F) and max temperatures of 29°C (85°F). Both months see similar levels of precipitation, but October is significantly wetter, with 206 mm (8.1 in) compared to April's 86 mm (3.4 in). Humidity levels remain comparable, being 72% in October and 71% in April. For more detailed insights on the conditions during April, you can explore Mong Cai weather in April.
In October, the weather exhibits a warm average temperature of 25°C (77°F), with minimums around 18°C (65°F) and maximums reaching up to 32°C (90°F). The month also experiences notable precipitation, with 206 mm (8.1 in) spread over about 14 days, and humidity levels at 72%. In contrast, May presents slightly warmer conditions, boasting an average temperature of 27°C (81°F) with similar maximums of 32°C (90°F) but a modestly higher minimum of 19°C (67°F). It also sees considerable rainfall, totaling 190 mm (7.5 in) over 19 days, coupled with a higher humidity of 76%. For more detailed insights into the weather during this month, check out Mong Cai weather in May.
In comparing the weather of October and June, we see distinct differences in temperature and precipitation patterns. October experiences milder temperatures, with a minimum of 18°C (65°F) and an average of 25°C (77°F), while June boasts higher temperatures, starting at a minimum of 23°C (74°F) and averaging around 29°C (84°F). However, June also has more significant rainfall, with a total of 265 mm (10.4 in) over 23 days, compared to October's 206 mm (8.1 in) spread over 14 days. Additionally, June tends to be slightly more humid, with a humidity level of 79%, compared to October's 72%. For more specific details on June weather, you can visit Mong Cai weather in June.
When comparing the weather in October and July, October generally experiences milder temperatures with a minimum of 18°C (65°F), an average of 25°C (77°F), and a maximum of 32°C (90°F). In contrast, July is notably warmer, with minimum temperatures of 26°C (78°F), an average of 29°C (84°F), and a peak of 33°C (91°F). However, July also sees higher humidity levels at 86% compared to October's 72%. Additionally, July is significantly wetter, receiving 364 mm (14.3 in) of precipitation over 25 days, whereas October has 206 mm (8.1 in) over 14 days. For more detailed insights, you can visit Mong Cai weather in July.
When comparing October and August weather, October generally exhibits a significant drop in humidity and overall temperature ranges. In October, the minimum temperature is 18°C (65°F) with an average of 25°C (77°F) and a maximum of 32°C (90°F), while August sees much warmer averages with a minimum of 25°C (78°F), an average of 29°C (84°F), and a maximum of 33°C (91°F). Additionally, October experiences more rainy days, totaling 14 days with 206 mm (8.1 in) of precipitation, compared to August, which has 26 rainy days and a much higher precipitation of 469 mm (18.5 in). This contributes to higher humidity levels in August at 86%, contrasting with October's 72%. For more detailed information, you can check Mong Cai weather in August.
In comparing the weather of October and September, October tends to be slightly cooler with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F), while September is warmer with a minimum of 24°C (75°F) and a maximum of 33°C (92°F). Precipitation levels decrease in October to 206 mm (8.1 in) over 14 days, compared to September's heavier rainfall of 256 mm (10.1 in) spread over 21 days. Humidity also slightly drops from September's 78% to October's 72%, indicating a transition toward a more comfortable fall climate. For more detailed insights into September weather patterns, you can refer to Mong Cai weather in September.
In comparing the weather between October and November, October presents warmer temperatures with a minimum of 18°C (65°F) and an average high of 32°C (90°F). In contrast, November cools down, featuring a minimum temperature of 12°C (54°F) and a maximum of 28°C (82°F). Additionally, October experiences significantly more rainfall, totaling 206 mm (8.1 in) over 14 days, whereas November sees just 47 mm (1.8 in) across 8 days. Humidity levels remain relatively similar, with October at 72% and November at 69%. For more details, you can check Mong Cai weather in November.
In October, the weather is noticeably warmer, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (90°F) and an average of 25°C (77°F). The month is also characterized by higher precipitation, totaling 206 mm (8.1 in) over 14 days, contributing to a humidity of 72%. In contrast, December brings significantly cooler temperatures, with a range from 8°C (46°F) to 25°C (78°F) and an average of 17°C (63°F). Precipitation drops to 55 mm (2.2 in) over 10 days, and humidity slightly decreases to 70%. For more detailed information on December weather, visit Mong Cai weather in December.
As October settles in, Mong Cai experiences a delightful shift in weather patterns, setting it apart from the sweltering summer months. Average temperatures cool down, providing a more comfortable atmosphere ideal for outdoor exploration. While the humidity remains notably high, the increased precipitation brings much-needed relief, feeding the lush landscapes typical of this time of year. With around half the month witnessing rainfall, October is a vibrant transition period, making it a unique and refreshing time to visit. For more details on what to expect year-round, check out the full Mong Cai Climate.