Last updated: August 27, 2025
January in Mae Sai, Thailand, brings a charming blend of temperatures and weather patterns. With a maximum temperature reaching 32°C (90°F) and an average of 20°C (68°F), the days can be pleasantly warm, while the nights cool down to a refreshing minimum of 8°C (47°F). Travelers should expect some sporadic rainfall, as the month sees about 44 mm (1.7 in) of precipitation over 6 days. With a relative humidity of 54%, the air remains comfortable, making it an ideal time to explore the natural beauty and vibrant culture of this northern town.
In January, Mae Sai, Thailand, welcomes visitors with delightful temperatures that range from a cool 8°C (47°F) at night to a pleasant 32°C (90°F) during the day, averaging around 20°C (68°F). This month marks the beginning of a warming trend, as temperatures gradually rise into February, where the minimums creep up to 10°C (50°F) and maximums reach 35°C (95°F). As the months progress toward March and April, the region experiences a significant increase, with maximum temperatures soaring to a sweltering 40°C (105°F). This upward trend continues into May, which sees daytime highs of 41°C (107°F). However, the onset of the rainy season in June brings slightly cooler evenings and a shift in averages, stabilizing between 27-28°C (81-82°F) throughout the summer months. As the year winds down in October and November, temperatures gradually decline, signaling a return to the more moderate conditions reminiscent of January, with lows dipping to around 14°C (57°F) and daytime temperatures hovering around 34°C (93°F). Throughout the year, Mae Sai's climate offers a dynamic experience, blending cooler, refreshing evenings with warm, inviting days, perfect for exploring the stunning surroundings.
In January, Mae Sai, Thailand experiences a modest precipitation of 44 mm (1.7 in), spread over approximately 6 days. This sets the stage for drier months ahead, as February and March follow with significantly lower rainfall of 18 mm (0.7 in) and 17 mm (0.7 in), respectively. However, as the year progresses, the rainy season intensifies, peaking dramatically with April recording 125 mm (4.9 in) and leading into May's heavier 167 mm (6.6 in). This trend continues, culminating in a notably wet August, where precipitation reaches a staggering 430 mm (16.9 in), making it the wettest month of the year. The months following January exhibit a clear escalation in rainfall, signaling the transition from the relatively dry winter to the lush monsoon season.
In January, Mae Sai, Thailand, experiences a comfortable humidity level of 54%, setting a pleasant tone for the month. As the year progresses, humidity begins to dip slightly in February to 52%, but this decline is short-lived. March and April see levels drop further to 40% and 36%, respectively, making these months typically drier. However, the onset of the monsoon in May brings a noticeable uptick in humidity, soaring to 56%, and this trend continues into the summer months. By June, humidity skyrockets to 82%, reaching its peak in August at a staggering 92%. Following this peak, humidity starts to descend gradually, bringing relief as the year closes, with November at 67% and December at 62%. The duality of Mae Sai's climate is evident, transitioning from moderate January conditions into a sultry, humid summer—defining the region's tropical character.
In January, Mae Sai experiences a very high UV Index of 9, indicating that sun protection is essential, with a burn time of only 15 minutes. As the month transitions into February, the UV Index rises slightly to 10, maintaining the same exposure category and burn time. This pattern of escalating UV radiation begins to peak in March, reaching an extreme level of 13 and reducing the burn time to just 10 minutes. The extreme category continues through the following months, with the UV Index peaking at 14 from May to August, emphasizing the need for vigilant sun protection during this period. Notably, as the year closes, the UV Index gradually decreases, landing back at 9 in November and 8 in December, signalling a return to safer sun exposure conditions. For detailed insights and daily updates, check the Mae Sai UV Index.
UV Risk Categories
In Mae Sai, Thailand, January welcomes visitors with an impressive 236 hours of sunshine, setting the stage for a vibrant start to the year. As the months progress, the sun shines even brighter, peaking in March with a delightful 328 hours of radiant light. Following this golden month, April and May continue to bask in generous sunshine, boasting 310 and 323 hours, respectively. However, the summer months bring a slight dip in daylight hours, with July and August averaging around 248 and 243 hours. Yet, as the year winds down, the sun reemerges with renewed vigor, offering steady sunshine through November and December, both exceeding 290 hours. Overall, the trend in Mae Sai showcases a delightful blend of brilliant sunshine, perfect for soaking up the cultural richness and natural beauty of this enchanting locale throughout the year.
In January, Mae Sai, Thailand offers a 64% chance of sunny weather, setting a bright tone for the year ahead. As the month transitions into February, this likelihood increases slightly to 69%, indicating a trend towards sunnier days. The sunny streak continues to strengthen through March, reaching an impressive 82%, ideal for outdoor activities and exploration. However, as the heat of April sets in, the chance of sunshine drops significantly to 41%, signaling the onset of the rainy season. This general pattern reflects the region's shift from a comfortable dry season to the more humid months ahead, characterized by markedly lower chances of sunshine from May to July, where the sky is more often overcast. By December, though, Mae Sai redeems itself with a 75% chance of sunshine once again, inviting visitors to bask in the region's vibrant landscape before the year closes.
In Mae Sai, Thailand, January ushers in a consistent 11 hours of daylight, setting the stage for a bright and invigorating start to the year. As the months progress into February and March, daylight remains steady at 11 hours before extending to 12 hours in April and March. This gradual increase continues into May and June, where residents enjoy the luxury of 13 hours of sunlight, perfect for outdoor activities and exploration. However, daylight begins to taper off again starting in August, settling back at 12 hours in September. As the year wanes, the daylight diminishes further to 11 hours in October and November, ultimately culminating in a shorter 10-hour day by December. This rhythmic pattern not only enhances daily life but also shapes the various seasonal activities enjoyed by the community throughout the year.
In January, Mae Sai experiences a gentle average wind speed of 1.3 m/s (3 mph), setting a calm tone for the month. This tranquil breeze persists into February, maintaining the same speed, but then gradually tapers off in March and April, reflecting the subtle shift towards warmer days. Interestingly, June sees a slight uptick, with wind speeds reaching 1.4 m/s (3 mph), before slipping back to a steady 1.2 m/s (3 mph) in the subsequent months. As the year draws to a close, winds in November and December return to a slightly cooler 1.1 m/s (2 mph) and 1.2 m/s (3 mph), reminding us that Mae Sai, while predominantly calm, has its nuances with each passing month. This gentle variability in wind patterns contributes to the region's serene atmosphere, making it a delightful retreat throughout the year.
Weather in Mae Sai varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Mae Sai, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February exhibit some notable differences in weather patterns. January features a temperature range with a minimum of 8°C (47°F), an average of 20°C (68°F), and a maximum of 32°C (90°F), accompanied by 44 mm of precipitation over six days, resulting in a humidity level of 54%. In contrast, February experiences slightly warmer conditions with a minimum of 10°C (50°F), an average of 21°C (71°F), and a maximum of 35°C (95°F). Also, February sees significantly less rain, with only 18 mm of precipitation over just two days, contributing to a slightly lower humidity of 52%. Overall, February is warmer and drier than January, making it a more favorable month for outdoor activities. For more details, you can check the Mae Sai weather in February.
In January, temperatures in Mae Sai range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), with an average temperature of 20°C (68°F). The month experiences approximately 44 mm (1.7 in) of precipitation, spread over about six days, while humidity levels are at 54%. In contrast, March sees a rise in temperatures, with a minimum of 11°C (52°F) and a maximum of 38°C (101°F), averaging 25°C (77°F). Precipitation decreases significantly to 17 mm (0.7 in) over just three days, and humidity lowers to 40%. This shift highlights the transition from cooler, wetter January weather to the hotter and drier conditions typical of March. For more detailed information, check Mae Sai weather in March.
When comparing the weather in January and April, a notable increase in temperatures is evident. January experiences milder conditions with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), while April sees significantly warmer weather, with temperatures soaring between 16°C (60°F) and 40°C (105°F). Additionally, April is characterized by higher precipitation levels, receiving 125 mm (4.9 in) of rain across 11 days, compared to January's 44 mm (1.7 in) over just 6 days. Humidity also shifts, dropping from 54% in January to a more comfortable 36% in April. For more detailed insights, you can check Mae Sai weather in April.
In January, the weather is notably milder with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), averaging around 20°C (68°F). The month experiences relatively low precipitation, totaling 44 mm (1.7 in) over just 6 days, with humidity at 54%. In contrast, May brings significantly warmer conditions, with temperatures ranging from a minimum of 20°C (69°F) to a scorching maximum of 41°C (107°F) and an average of 28°C (82°F). Additionally, May sees much higher rainfall, amounting to 167 mm (6.6 in) across 18 days, and a slight increase in humidity to 56%. For more details, check out Mae Sai weather in May.
January and June exhibit striking contrasts in weather conditions. In January, temperatures range from a mild 8°C (47°F) at night to a comfortable average of 20°C (68°F) during the day, peaking at 32°C (90°F). Precipitation is relatively low at 44 mm (1.7 in) over about six days, and humidity hovers around 54%. In contrast, June brings much warmer and more humid conditions, with nighttime temperatures starting at 23°C (73°F) and daily averages around 28°C (82°F), reaching highs of 38°C (101°F). Rainfall significantly increases to 348 mm (13.7 in) spread across 26 days, accompanied by heightened humidity of 82%. For a closer look at the weather specifics during this month, refer to Mae Sai weather in June.
When comparing the weather in January and July, there are notable differences in temperature, precipitation, and humidity. In January, the temperatures are milder, with a minimum of 8°C (47°F) and a maximum of 32°C (90°F), featuring an average of 20°C (68°F). The month sees relatively low precipitation, with only 44 mm (1.7 in) spread over about 6 days and a humidity level of 54%. In contrast, July brings significantly warmer temperatures, with a minimum of 23°C (73°F), an average of 27°C (81°F), and a high of 38°C (100°F). This month experiences heavy rainfall, accumulating 372 mm (14.7 in) over 28 days, accompanied by a much higher humidity level of 90%. For a closer look at the specifics of July weather, you can check Mae Sai weather in July.
In January, the weather is characterized by mild temperatures, with minimums around 8°C (47°F) and maximums reaching 32°C (90°F), resulting in a comfortable average of 20°C (68°F). With only 44 mm (1.7 in) of precipitation spread over 6 days, humidity remains relatively low at 54%. In contrast, August brings a notably warmer climate, with minimum temperatures rising to 23°C (73°F) and maximums soaring to 36°C (98°F), creating a much higher average of 27°C (81°F). Additionally, August experiences significantly higher precipitation at 430 mm (16.9 in) over 27 days, and humidity levels skyrocket to 92%, making the weather feel much more oppressive. For more detailed insights, check Mae Sai weather in August.
January and September present strikingly different weather conditions. In January, temperatures range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), with an average of 20°C (68°F). This month typically sees moderate precipitation of 44 mm (1.7 in) over about 6 days, accompanied by a comfortable humidity of 54%. In contrast, September heats up considerably, with temperatures starting at 20°C (68°F) and reaching as high as 37°C (98°F), averaging 27°C (81°F). However, it experiences significantly more rain, accumulating 272 mm (10.7 in) across 23 days and higher humidity levels at 85%. The drastic differences in temperature and rainfall highlight the shift in climate between these two months. For a detailed look at September's weather patterns, you can check out Mae Sai weather in September.
January and October present contrasting weather patterns. In January, temperatures range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), with an average of 20°C (68°F). The month sees relatively low precipitation, with only 44 mm (1.7 in) over approximately 6 days and humidity levels around 54%. In contrast, October experiences much warmer temperatures, with a minimum of 18°C (65°F) and a maximum of 35°C (94°F), averaging 26°C (78°F). This month also has significantly higher rainfall totaling 158 mm (6.2 in) spread across about 20 days, along with increased humidity at 70%. For more details, check out Mae Sai weather in October.
January and November present distinct weather characteristics. In January, temperatures range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), with an average of 20°C (68°F). This month sees an average of 44 mm (1.7 in) of precipitation over about 6 days and a humidity level of 54%. In contrast, November boasts warmer temperatures, with a minimum of 14°C (57°F), an average of 23°C (74°F), and a peak of 34°C (93°F). Precipitation is slightly higher at 49 mm (1.9 in) over 9 days, accompanied by increased humidity at 67%. For more details about the weather during this month, visit Mae Sai weather in November.
In January, the weather in Mae Sai is slightly warmer compared to December, with average temperatures remaining consistent at around 20°C (68°F), but experiencing a wider range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F). Precipitation also sees a modest increase in January, totaling 44 mm (1.7 in) over 6 days, compared to December's 35 mm (1.4 in) over just 4 days. Additionally, humidity levels are lower in January at 54%, whereas December experiences a higher humidity of 62%. For more detailed information, you can view Mae Sai weather in December.
In January, Mae Sai greets visitors with a refreshingly mild climate, markedly different from the sweltering heat of the summer months. The temperature typically hovers around a comfortable 20°C (68°F), making it an ideal time for outdoor exploration. While the days may reach a maximum of 32°C (90°F), the crisp nights dip down to about 8°C (47°F), offering a delightful contrast. This month also sees a modest amount of precipitation, with just a few rainy days. With humidity averaging at 54%, January's weather creates a pleasant atmosphere that invites travelers to experience the lush beauty of this region. For more detailed insight, be sure to check out the full report on Mae Sai Climate.