Last updated: August 28, 2025
Experience the unique charm of Mong Cai, Vietnam in January, where temperatures gently fluctuate between a maximum of 23°C (73°F) and a minimum of 7°C (45°F), averaging around 16°C (61°F). This month features a blend of cool breezes and a touch of humidity at 66%, creating a pleasant atmosphere for exploration. With 62 mm (2.4 in) of rainfall spread across 10 days, January brings refreshing showers that nourish the landscape, making it an ideal time to witness the natural beauty of this coastal town. Embrace the cool weather and enjoy the vibrant hues of Mong Cai during this tranquil winter month.
In Mong Cai, Vietnam, January marks the transition into the cooler winter months, with temperatures ranging from a brisk 7°C (45°F) overnight to a comfortable 23°C (73°F) during the day, offering an average of 16°C (61°F). This month showcases a blend of refreshing coolness, particularly in the evenings, which sets the stage for the gradual warming trend seen in February. As the year progresses into spring, temperatures rise steadily, with February’s lows nudging up to 8°C (47°F) and daily highs reaching 24°C (75°F). By March, the climate shifts significantly, as the minimum temperature leaps to 14°C (57°F), heralding the onset of warmer weather. This progression illustrates a clear trend: from the cool beginnings of January to the vibrant warmth that characterizes later months, Mong Cai experiences a delightful transition that invites exploration and outdoor activities as the season evolves.
In Mong Cai, Vietnam, January ushers in a relatively mild start to the year, with precipitation totaling 62 mm (2.4 in) over approximately 10 days of rain. This consistent drizzle sets the stage for similar conditions in February, where the precipitation remains steady at 62 mm (2.5 in), though the number of rainy days increases slightly. As spring approaches with March, both the rainfall and the days of precipitation begin to escalate, peaking dramatically in the summer months. Notably, July and August experience torrential rains, with precipitation soaring to 364 mm (14.3 in) and 469 mm (18.5 in), respectively. This trend highlights a clear transition from the lighter, sporadic showers of early winter to the intense monsoon season, underlining Mong Cai's distinctive climate shifts throughout the year.
In January, Mong Cai, Vietnam, experiences a moderate humidity level of 66%, setting the stage for a gradual increase that follows in the coming months. As winter gives way to spring, humidity begins to climb steadily, reaching 71% in February and peaking at 73% in March. This trend continues into April before a notable jump occurs in the warmer months, with May bringing 76% and a noticeable rise throughout June and July, where humidity reaches a peak of 86%. The summer months maintain this high humidity, making the environment feel quite moist, while September witnesses a slight decrease to 78%. The cycle then winds down as the humidity drops again toward the end of the year, settling at 70% in December. Overall, the year in Mong Cai presents a clear transition from drier beginnings to the sultry embrace of summer, reflecting Vietnam's tropical climate.
In January, Mong Cai, Vietnam, experiences a UV Index of 8, marking very high exposure and a burn time of just 15 minutes. This trend of elevated UV levels sets the stage for the following months, with February jumping to a 10 before peaking with extreme levels between March and July, where the UV Index soars to 12 to 14, demanding even shorter burn times of just 10 minutes. As the year progresses, there's a gradual decline in UV intensity, culminating in December with a more manageable 7, allowing for a longer burn time of 25 minutes. Such fluctuations highlight the importance of sun protection throughout the year. For more insights, you can check the detailed observations on the Mong Cai UV Index.
UV Risk Categories
In January, Mong Cai basks in 170 hours of sunshine, marking the start of the year with a gentle glow. As the months unfold, February and March see a gradual increase, reaching 219 and 218 hours respectively, hinting at the gradual warming of the season. April ushers in a more pronounced shift, boasting 250 hours of sun, setting the stage for the vibrant days ahead. May shines the brightest, flooding the region with an impressive 305 hours of radiant sunshine, while June to August maintain a warm embrace with hours ranging from 271 to 296. As autumn approaches, sunshine levels experience a slight dip, with September through December displaying a steady retreat, yet still offering a commendable 235 hours by the year's end. This pattern reveals Mong Cai’s transformation from a softly illuminated January to a sun-soaked summer, before gracefully winding down into the cooler months, each one adding its unique touch to the tapestry of the year.
In Mong Cai, Vietnam, January offers a moderate chance of sunny weather, with a 50% likelihood of sunshine that sets a pleasant tone for the beginning of the year. This positivity continues into February, where the chance of sun increases to 59%, making it an appealing time for outdoor activities. However, as spring approaches, the likelihood dips sharply in March to just 29%, signaling a trend towards more overcast days. The pattern becomes even more pronounced throughout the summer months, with June and August seeing the lowest chances of sunshine at 13% and 11%, respectively. Interestingly, the odds improve again in the fall, with November and December enjoying a return to brighter days, boasting 51% and 54% chances of sunshine. Overall, January stands out as a prime opportunity for those seeking sunny weather before the clouds gather later in the season.
In Mong Cai, Vietnam, January sees about 10 hours of daylight, marking the beginning of a gradual increase that continues through February with 11 hours. As spring approaches in March and April, daylight extends to 12 hours, creating perfect conditions for outdoor activities. The daylight peaks in May through July at 13 hours, offering ample sunlight for exploration and enjoyment of the lush surroundings. As summer gives way to fall, daylight begins to wane slightly, with 12 hours in August and September, and then receding to 11 hours in October and November. By December, daylight returns to 10 hours, creating a cyclical rhythm of light that beautifully marks the changing seasons in this vibrant coastal region.
In Mong Cai, Vietnam, January ushers in a gentle average wind speed of 3.7 m/s (8 mph), setting a tranquil tone for the month. This refreshing breeze, stronger than February's lull at 2.5 m/s (6 mph), marks the transition into the year, hinting at the seasonal shifts ahead. As the months progress, winds begin to pick up speed, peaking in October with a brisk 6.0 m/s (13 mph), only to mellow again in the closing months of the year. Notably, May and June also witness invigorating gusts of 4.3 m/s (10 mph) and 4.6 m/s (10 mph), making them standout months for those who enjoy the refreshing touch of the wind. Overall, January serves as a delightful beginning within a pattern of varying wind speeds, inviting visitors to relish the subtle changes that each month brings.
Weather in Mong Cai varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Mong Cai, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather of January and February, we observe that February tends to be slightly warmer, with average temperatures rising from 16°C (61°F) in January to 17°C (63°F). The maximum temperature also increases by one degree, reaching 24°C (75°F) in February compared to 23°C (73°F) in January. Precipitation levels remain consistent, with both months recording around 62 mm; however, February experiences one additional rainy day, totaling 11 days of rain. Additionally, the humidity levels rise from 66% in January to 71% in February, indicating a more humid atmosphere as winter transitions to early spring. For more specific details about February weather, you can check Mong Cai weather in February.
In January, the weather is generally cooler with a minimum temperature of 7°C (45°F) and an average high of 23°C (73°F), accompanied by moderate humidity at 66%. Conversely, March sees a notable rise in temperatures, where the minimum reaches 14°C (57°F) and the average high climbs to 26°C (80°F). March also experiences increased precipitation of 84 mm (3.3 in) over 15 days, compared to January's 62 mm (2.4 in) over 10 days, and a slight increase in humidity to 73%. For more detailed insights, check out Mong Cai weather in March.
In January, the weather is generally cooler with minimum temperatures around 7°C (45°F) and average highs reaching 23°C (73°F). The month sees an average of 62 mm (2.4 in) of precipitation over about 10 days, accompanied by a relative humidity of 66%. In contrast, April experiences significantly warmer conditions, with minimum temperatures rising to 16°C (61°F) and maximums reaching up to 29°C (85°F). Precipitation increases to 86 mm (3.4 in) spread over 14 days, while humidity slightly rises to 71%. For more specific details regarding weather conditions in April, check out Mong Cai weather in April.
In January, the weather features cooler temperatures with a minimum of 7°C (45°F) and a maximum of 23°C (73°F), averaging around 16°C (61°F). Precipitation is relatively moderate, totaling 62 mm (2.4 in) over approximately 10 days, accompanied by a humidity level of 66%. In contrast, May exhibits much warmer conditions, with minimum temperatures rising to 19°C (67°F) and maximums reaching up to 32°C (90°F), resulting in an average of 27°C (81°F). However, May is also characterized by significantly higher rainfall, accumulating 190 mm (7.5 in) over 19 days, along with increased humidity at 76%. For more detailed weather insights, you can check out Mong Cai weather in May.
In January, the weather in Mong Cai is mild, with temperatures ranging from a minimum of 7°C (45°F) to a comfortable maximum of 23°C (73°F) and an average of 16°C (61°F). The month sees relatively low precipitation, with about 62 mm (2.4 in) spread over 10 days and humidity levels at 66%. In stark contrast, June brings significantly warmer temperatures, with lows of 23°C (74°F) and highs reaching up to 33°C (92°F), averaging 29°C (84°F). However, it also experiences much heavier rainfall, totaling 265 mm (10.4 in) over 23 days, accompanied by higher humidity at 79%. For more specific details on June weather, you can check Mong Cai weather in June.
In January, the weather is relatively mild with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 23°C (73°F) and an average of 16°C (61°F). The month experiences a moderate amount of precipitation, totaling 62 mm (2.4 in) over about 10 days, with a humidity level of 66%. In stark contrast, July brings much warmer conditions, with temperatures soaring from a minimum of 26°C (78°F) to a maximum of 33°C (91°F) and an average of 29°C (84°F). The region sees significantly higher rainfall in July, accumulating 364 mm (14.3 in) over 25 days, accompanied by higher humidity at 86%. This dramatic shift underscores the seasonal variations in Mong Cai's climate. For a closer look at July weather specifics, you can refer to Mong Cai weather in July.
In comparing the weather of January and August, notable differences emerge. January sees milder temperatures with a minimum of 7°C (45°F) and an average of 16°C (61°F), peaking at 23°C (73°F). Additionally, the month experiences relatively low precipitation at 62 mm (2.4 in) over 10 days, with humidity sitting around 66%. In contrast, August brings significantly warmer conditions, with minimum temperatures starting at 25°C (78°F) and averaging 29°C (84°F), reaching a maximum of 33°C (91°F). However, this month also faces a considerable increase in rainfall, totaling 469 mm (18.5 in) spread across 26 days, along with higher humidity levels at 86%. For further details on the weather specifics in August, you can visit Mong Cai weather in August.
January and September present a striking contrast in weather conditions. In January, temperatures range from a mild 7°C (45°F) to a comfortable 23°C (73°F), with an average of 16°C (61°F). The month sees around 62 mm (2.4 in) of precipitation over about 10 days, with humidity levels at 66%. In contrast, September experiences significantly warmer temperatures, with minima of 24°C (75°F) and maxima reaching 33°C (92°F), averaging 28°C (83°F). This month is notably wetter, accumulating 256 mm (10.1 in) of rain over 21 days and higher humidity levels at 78%. For more details on the climate, you can check Mong Cai weather in September.
January and October present distinctly different weather patterns. In January, temperatures range from a mild minimum of 7°C (45°F) to a comfortable maximum of 23°C (73°F), with an average of 16°C (61°F). The month sees about 62 mm (2.4 in) of precipitation spread over 10 days, maintaining a humidity level of 66%. In contrast, October boasts much warmer temperatures, with a minimum of 18°C (65°F) and a maximum reaching 32°C (90°F), averaging 25°C (77°F). However, it also experiences higher rainfall, totaling 206 mm (8.1 in) over 14 days, accompanied by increased humidity at 72%. For a detailed look at the weather in this month, check out Mong Cai weather in October.
January experiences cooler temperatures compared to November, with a minimum of 7°C (45°F) and an average of 16°C (61°F), while November boasts milder temperatures, starting at a minimum of 12°C (54°F) and averaging around 22°C (71°F). The maximum temperatures in January reach up to 23°C (73°F), whereas in November, they can soar as high as 28°C (82°F). Precipitation is more prevalent in January, with 62 mm (2.4 in) falling over 10 days, compared to November's lighter rainfall of 47 mm (1.8 in) over just 8 days. Both months exhibit similar humidity levels, with January at 66% and November slightly higher at 69%. For more detailed information about November weather, visit Mong Cai weather in November.
In January, the weather is slightly cooler compared to December, with minimum temperatures of 7°C (45°F) and maximums reaching 23°C (73°F). December, on the other hand, features a slightly higher minimum temperature of 8°C (46°F) and an average maximum of 25°C (78°F). Both months experience similar levels of precipitation, around 55-62 mm, with rainfall occurring on about 10 days. However, January tends to have slightly lower humidity at 66%, compared to December's 70%. For more details on weather conditions in December, you can refer to Mong Cai weather in December.
In January, Mong Cai experiences a refreshing shift in weather, with cooler temperatures and a noticeable increase in humidity compared to the warmer months. While the average temperature settles around a comfortable 16°C (61°F), it can dip to chilly lows of 7°C (45°F) at night, inviting a cozy atmosphere. This month also sees a fair share of rainfall, with about 62 mm spread across approximately 10 days, adding a unique charm to the landscape. The overall climate during January sets the stage for a quieter, more serene experience, contrasting sharply with the hot and humid conditions prevalent during the summer months. For a deeper understanding of what to expect throughout the year, be sure to explore the full details at Mong Cai Climate.