Last updated: August 27, 2025
In August, Chiang Rai, Thailand experiences a vibrant climate characterized by high humidity levels averaging 91%. The temperatures soar with a maximum of 36°C (96°F) and a comfortable average of 27°C (80°F), while nights cool down to a minimum of 23°C (73°F). This month is notable for its substantial rainfall, accumulating to 382 mm (15.1 in) over 28 days, making it one of the wettest periods of the year. Visitors should prepare for frequent showers and embrace the lush, tropical landscape that flourishes during this time.
In August, Chiang Rai experiences a warm and humid climate, typical of its tropical setting. With minimum temperatures hovering around 23°C (73°F), nights remain comfortably mild. The average temperature settles at 27°C (80°F), contributing to the lush, green landscapes that flourish during this rainy season. While daytime highs reach a maximum of 36°C (96°F), the overall heat is tempered by occasional rain, providing relief from the humidity. This month also marks a transition as the temperatures gradually begin to dip towards the cooler months, making it an ideal time for visitors to explore the region’s stunning natural beauty amidst the vibrant local culture.
August is a notable month for precipitation in Chiang Rai, Thailand, marking the peak of the rainy season. With a striking 382 mm (15.1 inches) of rain over 28 days, August experiences the highest rainfall of the year, further contributing to the region's lush landscapes. This significant uptick follows July's substantial total of 327 mm (12.9 inches) and sets the stage for a dramatic transition into September, which sees a sharp decline to 260 mm (10.2 inches). The trend underscores the monsoon's intensity during mid-year, as a steady increase in rainfall is observed from April through August. In contrast to the drier months at the beginning of the year, August stands out as a vibrant reminder of the region's dynamic climate, where rain nourishes both the earth and the rich biodiversity that thrives in this beautiful area.
In August, Chiang Rai experiences its peak humidity at a striking 91%, creating a lush and vibrant atmosphere characteristic of the rainy season. Leading up to this month, humidity steadily climbs from 38% in March to 63% by May, reflecting the region's transition into the wet season. The increase continues through June and July, reaching a high that sets the stage for August's thick, humid air. As the rains fall more heavily, the high humidity of August begins to taper off in September, settling back to 83%. This trend illustrates how moisture in the air defines the seasonal rhythm of Chiang Rai, underscoring the intensity of the monsoon period as summer shifts into autumn.
In August, the UV Index in Chiang Rai, Thailand reaches a striking 14, categorizing the exposure as extreme and resulting in a burn time of just 10 minutes. This month falls within a pattern of consistently high UV levels, as seen since March, where the index remains at this elevated mark through July and into September. Notably, the brief reprieve in exposure occurs in November and December, when the UV Index drops to lower levels of 10 and 8, respectively. This trend highlights the importance of sun protection during the summer months when residents and visitors alike should be particularly vigilant about UV exposure. For more detailed insights, check out Chiang Rai UV Index.
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August in Chiang Rai, Thailand, offers a warm embrace of sunshine, though it sees a slight dip in hours compared to the preceding months. With 247 hours of glorious sunlight, August remains a vibrant time, even if it lags behind the peak brightness of March and May, which boast over 330 hours. This month sits amid a tapering trend that begins in the heat of summer, where daylight gradually wanes as the region transitions toward the wet season. By September, Chiang Rai will enjoy a rebound in sunshine, hinting at the enduring allure of the tropical climate, making August a perfect time to bask in the still-abundant golden rays before the clouds gather later in the year.
When it comes to sunny weather in August in Chiang Rai, Thailand, the outlook is generally dim. With a mere 13% chance of sun, August ranks among the month’s least favorable for sunshine. This low likelihood follows a notable downward trend from the comparatively brighter earlier months; for instance, March boasts an impressive 80% chance of sunny days, while April and May still hold on to a reasonable 39%. As the monsoon season takes hold, the clouds dominate the skyline, leading to a noticeable shift from the sun-soaked days of the early year. Travelers seeking sun might want to plan their visits for the months of January through March or even November, where the chances significantly improve.
In August, Chiang Rai enjoys approximately 12 hours of daylight, a slight dip following the peak summer months of May through July, which boast the longest days at 13 hours. This mid-year balance reveals a gradual transition as the days begin to shorten slightly, setting the stage for the cooler months ahead. As we move from the lush greenery of the wet season toward the approaching autumn, the consistent daylight of August continues to bathe the region in warmth, creating an inviting atmosphere for outdoor exploration and cultural experiences.
August in Chiang Rai, Thailand, greets visitors with gentle breezes, as the average wind speed settles at 1.3 m/s (3 mph). This theme of mildness continues throughout the summer months, where April to August all maintain similar low wind speeds, particularly reflective of the region's tropical climate. Interestingly, the winds do show a slight uptick in June at 1.6 m/s (4 mph), hinting at a subtle seasonal shift. Following August, the winds gradually taper off into September and November, where they dip to their calmest at 1.1 m/s (2 mph). Overall, August encapsulates the serene charm of Chiang Rai's atmosphere, offering a tranquil backdrop for exploration, blending comfortably with the warm weather that characterizes this lush locale.
Weather in Chiang Rai varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Chiang Rai, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January showcase a stark contrast in weather patterns. August experiences high temperatures, with a minimum of 23°C (73°F) and an average of 27°C (80°F), peaking at a sweltering 36°C (96°F). The month is characterized by heavy rainfall, with 382 mm (15.1 in) of precipitation over 28 days and a humidity level of 91%. In contrast, January offers a much cooler climate, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 33°C (91°F), averaging around 20°C (69°F). Precipitation in January is minimal, with just 39 mm (1.5 in) over 4 days and a notably lower humidity of 51%. For more detailed information, you can check Chiang Rai weather in January.
August and February present strikingly different weather patterns. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 36°C (96°F), with an average of 27°C (80°F). This month is characterized by significant rainfall, with 382 mm (15.1 in) of precipitation spread over 28 days and high humidity levels reaching 91%. In contrast, February offers a much milder climate, featuring cooler temperatures with a minimum of 10°C (51°F), an average of 22°C (72°F), and a maximum of 35°C (96°F). Notably, February experiences minimal rainfall of only 16 mm (0.6 in) on just 1 day and lower humidity levels at 46%. For more details on February weather, you can check out Chiang Rai weather in February.
August and March present contrasting weather conditions. In August, temperatures range from a mild 23°C (73°F) to a sweltering 36°C (96°F), with an average of 27°C (80°F). This month is characterized by heavy rainfall, accumulating 382 mm (15.1 in) over 28 days, and high humidity levels at 91%. Conversely, March showcases a broader temperature range, with minimums of 12°C (53°F) and maximums hitting 39°C (102°F), averaging around 25°C (78°F). Notably, March experiences significantly less precipitation, totaling just 13 mm (0.5 in) over only 2 days, and much lower humidity at 38%. For more details, you can check out Chiang Rai weather in March.
When comparing the weather in August and April, it’s evident that both months feature similar average temperatures, around 27°C (80°F). However, August is characterized by significantly higher humidity at 91% and a substantial amount of rainfall, receiving 382 mm (15.1 in) over 28 days. In contrast, April experiences lower humidity levels of 36% and less precipitation, totaling 171 mm (6.7 in) over just 13 days, making it a drier month overall. Notably, April can see maximum temperatures soaring to 40°C (105°F), whereas August is typically more moderate with a maximum of 36°C (96°F). For more details on April's weather specifics, check out Chiang Rai weather in April.
When comparing the weather in August and May, we see notable differences in temperature and precipitation. August experiences a minimum temperature of 23°C (73°F), with an average of 27°C (80°F) and a maximum reaching 36°C (96°F). In contrast, May begins slightly warmer, with minimum temperatures around 20°C (69°F) and maximums soaring to 41°C (106°F), making it feel hotter despite a similar average of 27°C (82°F). Regarding precipitation, August is significantly wetter, receiving 382 mm (15.1 in) over 28 days, while May has 203 mm (8.0 in) over 19 days. Furthermore, August's humidity is notably high at 91%, compared to May's more comfortable 63%. For more details, check Chiang Rai weather in May.
In comparing the weather between June and August, both months exhibit similarly high minimum temperatures of around 23°C (73°F) and average temperatures hovering near 27°C (80°F). However, June tends to have slightly higher maximum temperatures, reaching up to 37°C (99°F), compared to August’s 36°C (96°F). When it comes to rainfall, August experiences significantly more precipitation, totaling 382 mm (15.1 in) over 28 rainy days, while June sees 277 mm (10.9 in) across 25 days. Additionally, humidity levels are higher in August at 91%, compared to June's 81%. For a more detailed look at June weather, visit Chiang Rai weather in June.
In comparing the weather between July and August, both months exhibit similar average temperatures, with August slightly warmer at an average of 27°C (80°F), compared to July’s 27°C (81°F). However, August experiences more substantial rainfall, with precipitation totaling 382 mm (15.1 in) over 28 days, while July has lower precipitation at 327 mm (12.9 in) over 27 days. Additionally, humidity levels rise in August to 91%, compared to July’s 83%, making August feel even more sultry. For those interested in further details about July's weather, check out Chiang Rai weather in July.
August and September present a gradual transition in weather conditions. In August, temperatures range from a minimum of 23°C (73°F) to a maximum of 36°C (96°F), with an average temperature of 27°C (80°F). The month is also characterized by high humidity at 91% and significant rainfall, accumulating 382 mm (15.1 in) over 28 days. In contrast, September shows slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 35°C (96°F), while the average remains steady at 26°C (80°F). Rainfall decreases to 260 mm (10.2 in) over 24 days, and humidity drops to 83%. For more detailed information on September weather, visit Chiang Rai weather in September.
In comparison to August, October experiences a noticeable drop in temperature, with average highs decreasing from 36°C (96°F) to 34°C (93°F). The minimum temperature also shows a decline, moving from 23°C (73°F) in August to 18°C (65°F) in October. Additionally, October sees a significant reduction in both precipitation and humidity; rainfall decreases from 382 mm (15.1 in) over 28 days in August to just 161 mm (6.3 in) over 19 days in October, and humidity drops from a high 91% to a more comfortable 67%. For more details on the weather during this month, you can check Chiang Rai weather in October.
August and November present stark contrasts in weather. In August, temperatures soar with a minimum of 23°C (73°F) and an average of 27°C (80°F), peaking at a scorching 36°C (96°F). This month is also characterized by heavy rainfall, totaling 382 mm (15.1 in) over 28 days, coupled with high humidity levels averaging 91%.
In contrast, November brings a welcome relief from the heat, with temperatures dropping to a minimum of 13°C (57°F) and an average of 23°C (74°F), reaching a maximum of 33°C (93°F). The rain significantly decreases to 48 mm (1.9 in), spread over just 9 days, and the humidity falls to a more comfortable 60%. For more detailed insights, check out Chiang Rai weather in November.
August and December present strikingly different weather conditions. In August, the temperatures range from a minimum of 23°C (73°F) to a sweltering maximum of 36°C (96°F), with an average of 27°C (80°F). This month is characterized by heavy precipitation, receiving 382 mm (15.1 in) over 28 days and maintaining high humidity levels at 91%. In contrast, December offers a much cooler climate, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 32°C (90°F), and an average of 20°C (68°F). Rainfall drops significantly to just 33 mm (1.3 in) over 4 days, accompanied by a much drier humidity level of 56%. For more detailed insights into the December weather, you can check Chiang Rai weather in December.
In August, Chiang Rai experiences a distinct shift in weather compared to other months, marked by high humidity and frequent rainfall. With daily temperatures averaging around 27°C, the heat can often feel more intense, especially given the 91% humidity. August stands out as one of the wettest months, with nearly the entire month seeing precipitation, making it notably lush and vibrant. This significant rainfall, totaling about 382 mm throughout the month, enhances the region's natural beauty but may also impact outdoor activities. For those considering a visit, it's essential to plan accordingly, taking advantage of dryer spells to explore the lush landscapes. For more insights into weather patterns in this region, visit Chiang Rai Climate.