Last updated: August 27, 2025
In April, Chiang Rai experiences a hot and humid climate, with maximum temperatures soaring up to 40°C (105°F) while the average hovers around 27°C (80°F). Nights cool slightly, dipping to a minimum of 16°C (61°F). This month also marks the start of the rainy season, with a total precipitation of 171 mm (6.7 in) spread over 13 days, introducing a refreshing contrast to the heat. Humidity levels remain relatively low at 36%, making April a dynamic month in this northern Thai province, blending warmth and occasional rainfall.
In April, Chiang Rai experiences a noticeable shift towards warmer weather, with temperatures steadily rising as the month progresses. The minimum temperature settles at a comfortable 16°C (61°F), while the average climbs to 27°C (80°F), providing a pleasant backdrop for exploration. However, it’s the maximum temperature that truly stands out, peaking at a sizzling 40°C (105°F), signaling the approach of the hotter months ahead. This upward trend from March, where the mercury reached a max of 39°C (102°F), hints at the sweltering days to come in May. As spring unfolds, April serves as a vibrant transition, inviting travelers to enjoy the increasing warmth while immersing themselves in the rich culture and stunning landscapes of northern Thailand.
April marks a significant shift in precipitation patterns in Chiang Rai, Thailand, as the region transitions into the heart of the rainy season. With an impressive 171 mm (6.7 in) of rain falling over 13 days, April showcases a dramatic increase compared to the drier preceding months. This surge not only highlights the onset of the monsoon but also signals a departure from the relatively dry January, February, and March, which together saw minimal rain. As temperatures rise, the rain transforms the landscape, nurturing the lush greenery that defines Northern Thailand during the peak of the rainy season. Looking ahead, the precipitation continues to escalate in May and June, leading to even more substantial rainfall that reshapes the local climate landscape.
April in Chiang Rai, Thailand, marks a transitional moment as humidity levels begin to dip, resting at a comfortable 36%. This decrease follows a downward trend that started in March, where humidity slid to its lowest point before the monsoon season. The month’s arid atmosphere provides a brief respite before the wet months of May and June arrive, which see a dramatic surge in humidity, with levels skyrocketing to 63% and 81%, respectively. As the seasons shift, April presents an ideal time to experience the region's natural beauty, set against a backdrop of relatively dry conditions before the summer rains transform the landscape.
In April, Chiang Rai experiences its heightened UV exposure, with a UV Index of 13, categorizing the risk level as extreme. This elevation in UV radiation mirrors the trends established in March, maintaining a burn time of just 10 minutes, which underscores the importance of sun safety. As temperatures rise leading into May, the UV Index will escalate again to 14, marking one of the highest points in the year, with similar extreme levels persisting through to September. It's essential for residents and visitors alike to stay informed about the UV Index, particularly in these months of intense sun exposure. For more details, check out Chiang Rai UV Index.
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In April, Chiang Rai basks in an impressive 318 hours of sunshine, making it one of the sunniest months of the year, slightly lower than May's peak but still radiant. This delightful weather follows the gradual increase from January's 240 hours through March's 332 hours, showcasing a clear trend of expanding daylight as the dry season progresses. The lingering warmth of April sets the stage for the summer months ahead, with May just surpassing it at 333 hours, hinting at the region's vibrant climatic rhythm that attracts visitors seeking both tranquility and adventure. As the months transition, Chiang Rai's sunshine hours ebb and flow, providing a captivating backdrop for both locals and travelers to relish in the lush scenery and cultural richness of Northern Thailand.
In Chiang Rai, Thailand, the transition from winter to summer brings a notable shift in the likelihood of sunny weather. While January through March dazzles with increasingly sunny days—peaking at 80% in March—April sees a marked drop, with only a 39% chance of sunshine. This decline suggests the onset of the hot season, where the once reliable sunshine may be overshadowed by increasing cloud coverage. As the months roll into May and early rains approach, the chances remain stagnant at 39%, signaling a pronounced shift away from the cheerful sun of earlier months. By June, the situation worsens dramatically, plunging to just 11%, underscoring the wet season's arrival. Thus, while those in Chiang Rai enjoy plenty of sunlight in the early months of the year, April stands as a crucial pivot, hinting at the changing climate ahead.
As April unfolds in Chiang Rai, Thailand, residents and visitors enjoy 12 hours of daylight, a continuation of the gradual lengthening trend observed since March. This month marks a transition from the shorter daylight hours of early the year, where January and February offered a consistent 11 hours, to the brightness of the upcoming months. With daylight extending to 13 hours in May through July, April serves as a perfect prelude to the sun-drenched days of summer, inviting outdoor activities and a vibrant atmosphere. The gradual increase of sunlight not only enhances the natural beauty of the region but also enriches the cultural experiences that bloom alongside the brightening skies.
In April, the winds in Chiang Rai, Thailand, maintain a gentle demeanor with an average speed of 1.3 m/s (3 mph), mirroring the calm conditions of the preceding months. This slight consistency suggests that the breezy whispers of early spring continue to embrace the region, providing a refreshing respite from the rising temperatures. As the month transitions into May, we can anticipate similar mild winds, setting the stage for a tranquil atmosphere. Notably, the peak wind speed occurs later in June at 1.6 m/s (4 mph), but for now, April's soft gusts paint a serene picture, inviting locals and visitors alike to enjoy the beauty of the blooming landscape.
Weather in Chiang Rai varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Chiang Rai, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January showcase distinct weather characteristics that reflect the transition between seasons. In April, temperatures soar with a minimum of 16°C (61°F), an average of 27°C (80°F), and peaks reaching a scorching 40°C (105°F). The month is marked by significant rainfall, totaling 171 mm (6.7 in) over approximately 13 rainy days, combined with lower humidity at 36%. In stark contrast, January presents a much cooler climate, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 33°C (91°F) and a pleasant average of 20°C (69°F). The precipitation in January is considerably lighter, at 39 mm (1.5 in) over just 4 days, accompanied by higher humidity levels of 51%. For more insights on the weather specifics of January, refer to Chiang Rai weather in January.
When comparing the weather in April and February, it is clear that April is significantly warmer and wetter. April features a minimum temperature of 16°C (61°F) and an average high of 27°C (80°F), with a maximum soaring up to 40°C (105°F). In contrast, February offers cooler temperatures, with a minimum of 10°C (51°F) and an average of 22°C (72°F), peaking at 35°C (96°F). Additionally, April sees much higher precipitation at 171 mm (6.7 in) over 13 days, while February is relatively dry with only 16 mm (0.6 in) of rain falling over just one day. Humidity levels in February are also higher at 46%, compared to the 36% experienced in April. For more details on February weather, you can visit Chiang Rai weather in February.
April's weather is notably warmer and wetter than March's. The temperatures in April range from a minimum of 16°C (61°F) to a scorching maximum of 40°C (105°F), with an average temperature of 27°C (80°F). In contrast, March offers slightly cooler temperatures, with a minimum of 12°C (53°F) and a maximum of 39°C (102°F), averaging 25°C (78°F). Additionally, April experiences significantly more rainfall, receiving 171 mm (6.7 in) over 13 days, while March sees only 13 mm (0.5 in) in just 2 days. Humidity remains relatively similar, with April at 36% and March slightly higher at 38%. For more details on March weather, you can visit Chiang Rai weather in March.
In comparing the weather between April and May, we see some notable differences. April features a minimum temperature of 16°C (61°F) and an average of 27°C (80°F), peaking at a maximum of 40°C (105°F). However, it experiences significant precipitation with 171 mm (6.7 in) over 13 days and relatively low humidity at 36%. In contrast, May begins warmer with a minimum temperature of 20°C (69°F), remaining at an average of 27°C (82°F) and reaching a high of 41°C (106°F). Additionally, May sees increased rainfall, totaling 203 mm (8.0 in) over 19 days, paired with higher humidity at 63%. For more details, you can check the specifics of Chiang Rai weather in May.
In comparing the weather between April and June, April features a more significant temperature range, with minimums around 16°C (61°F) and maximums reaching up to 40°C (105°F). The average temperature remains comfortable at 27°C (80°F), but it experiences relatively low humidity at 36%. In contrast, June presents a warmer minimum temperature of 23°C (73°F) and a slightly lower maximum of 37°C (99°F), while maintaining an average similar to April. However, it is considerably wetter in June, with total precipitation of 277 mm (10.9 in) over 25 days, resulting in a much higher humidity level of 81%. For more detailed insights about the weather in June, you can refer to Chiang Rai weather in June.
When comparing the weather in April and July, notable differences emerge. April features a minimum temperature of 16°C (61°F) and can reach as high as 40°C (105°F), with an average temperature of 27°C (80°F). Precipitation is substantial, with 171 mm (6.7 in) falling over about 13 days, and humidity remains relatively low at 36%. In contrast, July experiences milder temperatures, with a minimum of 22°C (72°F) and a maximum of 37°C (98°F), while maintaining a similar average of 27°C (81°F). The rainy season intensifies in July, resulting in a significant increase in precipitation to 327 mm (12.9 in) over 27 days and a much higher humidity level of 83%. For a more detailed look at the weather conditions during this month, visit Chiang Rai weather in July.
April and August in Chiang Rai showcase distinct weather patterns. April experiences a wider temperature range, with temperatures spanning from a minimum of 16°C (61°F) to a maximum of 40°C (105°F), while the average remains comfortable at 27°C (80°F). However, it also sees considerable precipitation, with 171 mm (6.7 in) falling over 13 rainy days and a humidity level of 36%.
In contrast, August is characterized by warmer nights, with a minimum temperature of 23°C (73°F) and a more moderate maximum of 36°C (96°F), maintaining the same average of 27°C (80°F). This month is much wetter, receiving 382 mm (15.1 in) of rain across 28 days, leading to significantly higher humidity levels at 91%.
For detailed insights into the climate, you can check Chiang Rai weather in August.
When comparing the weather in April and September, significant differences emerge. April typically experiences warmer temperatures, with minimums around 16°C (61°F) and maximums soaring up to 40°C (105°F), while September maintains a milder range, with minimums at 20°C (68°F) and maximums peaking at 35°C (96°F). Precipitation also varies considerably; April receives about 171 mm (6.7 in) over 13 days, whereas September sees a notably higher 260 mm (10.2 in) spread across 24 days, contributing to a substantial increase in humidity, which rises from 36% in April to 83% in September. For more detailed insights on September weather, you can visit Chiang Rai weather in September.
April and October present contrasting weather conditions in terms of temperature and humidity levels. In April, temperatures can soar as high as 40°C (105°F) with an average around 27°C (80°F) and relatively low humidity at 36%. However, it is also a month with considerable rainfall, averaging 171 mm (6.7 in) over 13 days. In contrast, October features more moderate temperatures, with a maximum of 34°C (93°F) and an average of 25°C (78°F). Although October sees slightly less rainfall at 161 mm (6.3 in), it has a significantly higher humidity level of 67%. For more details on October weather, visit Chiang Rai weather in October.
April and November exhibit contrasting weather patterns. In April, temperatures can soar, with a minimum of 16°C (61°F) and a peak reaching as high as 40°C (105°F), leading to an average of 27°C (80°F). The month also sees considerable rainfall, accumulating 171 mm (6.7 in) over 13 days, and a lower humidity of 36%. In stark contrast, November offers a milder climate, with temperatures ranging from a minimum of 13°C (57°F) to a maximum of 33°C (93°F) and an average of 23°C (74°F). The precipitation is significantly less, totaling 48 mm (1.9 in) across 9 days, coupled with higher humidity at 60%. For more details, check out Chiang Rai weather in November.
April and December showcase markedly different weather patterns. In April, temperatures range significantly, with a minimum of 16°C (61°F) and a scorching maximum of 40°C (105°F), leading to an average temperature of 27°C (80°F). This month also experiences substantial rainfall, with 171 mm (6.7 in) of precipitation over 13 days, and humidity levels at 36%. In contrast, December offers a much cooler climate, featuring a minimum temperature of 7°C (45°F) and a maximum of 32°C (90°F), resulting in an average of 20°C (68°F). Rainfall drops dramatically to 33 mm (1.3 in) over just 4 days, with higher humidity levels at 56%. For more details, check out Chiang Rai weather in December.
As April rolls into Chiang Rai, the weather takes on a unique character that sets it apart from other months. With soaring temperatures peaking at 40°C, the days can feel quite intense, but the average warmth of 27°C provides a pleasant respite in the evenings. Despite the high temperatures, the region experiences a moderate precipitation level with about 13 rainy days, offering brief but refreshing showers that cool the air and increase humidity to around 36%. This combination of heat and rainfall not only marks the transition into the wet season but also paints a vivid picture of Chiang Rai's climatic diversity. For a deeper understanding of how these conditions compare throughout the year, check out Chiang Rai Climate.