Last updated: August 27, 2025
July in Chiang Rai, Thailand is characterized by a tropical climate that brings both warmth and significant rainfall. The maximum temperatures soar to around 37°C (98°F), while the average temperature hovers at a comfortable 27°C (81°F). Nighttime offers some relief with minimums dipping to 22°C (72°F). This month is notably marked by high humidity levels of 83% and frequent showers, as precipitation accumulates to 327 mm (12.9 in) over approximately 27 rainy days. Travelers should be prepared for a mix of sunny spells and sudden downpours, making it essential to embrace both the heat and the rain that define this vibrant time in Northern Thailand.
In July, Chiang Rai experiences a warm and humid climate, with nighttime temperatures settling at a comfortable 22°C (72°F). As the month progresses, the average temperature hovers around 27°C (81°F), mirroring the steady warmth seen in June. Daytime highs peak at 37°C (98°F), similar to the previous month, indicating a trend of persistent heat during the rainy season. While July offers a slight reprieve from peak summer temperatures, it remains a time for vibrant greenery and flourishing landscapes, influenced by the monsoon rains that typically grace the region. Whether exploring the bustling markets or enjoying nature's beauty, visitors can expect a warm, tropical experience in the heart of northern Thailand.
In July, Chiang Rai, Thailand experiences one of its wettest months, with a staggering 327 mm (12.9 in) of precipitation, marking a peak in the rainy season. This significant rainfall, coupled with 27 rainy days, reflects the region's transition into its lush, green landscape, as the monsoon delivers abundant moisture. The surge in precipitation compared to the preceding months, such as 277 mm in June and 203 mm in May, highlights a clear upward trend in rainfall during this time of year. As a result, July sets the stage for both vibrant growth in nature and the challenges that come with heavy downpours, shaping the July climate as a defining characteristic of Chiang Rai's tropical environment.
In Chiang Rai, Thailand, July marks a peak in humidity, reaching an impressive 83%, following the wet season's progression from May to June. This significant increase is part of a trend where humidity levels steadily rise from April's dry 36%, making the start of the rainy season feel much more sultry. Following a similar trajectory, August continues to intensify with humidity soaring to 91%, creating a lingering, tropical atmosphere. In fact, the months of June, July, and August collectively represent the highest humidity levels of the year, significantly contrasting with the crisp, drier conditions of early months like January and February. Thus, July serves as a transitional point, where the lush landscapes of Chiang Rai thrive under the weight of moisture, showcasing the region's vibrant, verdant beauty amid the humid embrace.
In July, Chiang Rai sees a persistent UV Index of 14, maintaining its position within the extreme exposure category. This trend of high UV levels, consistent with the previous months of May, June, and likely stretching into August and September, signals a serious need for sun protection. With a rapid burn time of just 10 minutes, the risk of skin damage is significant, emphasizing the importance of shielding oneself from intense sunlight during midday hours. As summer progresses, it's crucial for residents and visitors alike to stay informed about these UV conditions for optimal safety. For detailed insights on protecting yourself under the sun, check our resource on the Chiang Rai UV Index.
UV Risk Categories
In July, visitors to Chiang Rai, Thailand can expect a vibrant tapestry of sunshine, with an average of 258 hours illuminating the landscape. While this marks a dip from the sun-drenched months of March and May, which boast over 330 hours each, July still holds its own with ample daylight for exploration. As the monsoon season approaches, there is a noticeable decrease in sunshine, but the lush greenery and cooler temperatures make it a unique and refreshing time to immerse yourself in the region's beauty. Following the lively sun-soaked months, July’s moderate sunlight invites travelers to enjoy both the serene landscapes and rich cultural experiences, perfectly balancing warmth and rain.
In Chiang Rai, Thailand, the likelihood of sunny weather takes a notable dip in July, with only a 15% chance of clear skies. This marks a stark contrast to the preceding months, where the chances of sunshine peak at 80% in March and maintain a respectable 73% in February. As the rainy season progresses, the chances decline significantly, especially from June, which sees just 11% sunshine, rolling into July and further into August, where the likelihood remains low at 13%. This trend highlights the region's transition from the dry season to the wet, making July one of the cloudier months, well-suited for those seeking to embrace the lush, vibrant landscapes that thrive under the rainfall.
In July, daylight in Chiang Rai, Thailand reaches a pleasant 13 hours, maintaining the extended light seen since May and June. This steady duration invites both locals and travelers to enjoy the vibrant outdoor life that characterizes the region during the monsoon season. Following the gradual increase from 11 hours in January and February to 12 hours in March and April, the trend stabilized in the mid-summer months. As August approaches, daylight hours will slightly decrease, but July stands as a peak for those wishing to bask in Chiang Rai’s lush landscapes and rich culture under the warm sun.
In July, Chiang Rai experiences a gentle average wind speed of 1.4 m/s (3 mph), aligning closely with the consistent breezes that characterize much of the year. While June sees a slight uptick in wind, reaching 1.6 m/s (4 mph), July's winds settle back into the mild rhythm typical of the rainy season. This month's wind patterns, along with the persistent warmth, not only create a comfortable atmosphere but also enhance the lush landscapes that thrive during this time. As the months progress, the winds gradually taper off, reaching their lowest in September at just 1.1 m/s (2 mph), suggesting that the vibrant weather of mid-year is gradually giving way to the stillness of the late monsoon season.
Weather in Chiang Rai varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Chiang Rai, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present starkly contrasting weather conditions. In July, temperatures soar with a minimum of 22°C (72°F) and can reach up to 37°C (98°F), accompanied by high humidity levels of 83% and significant rainfall totaling 327 mm (12.9 in) over 27 days. In contrast, January boasts milder temperatures, with a minimum of 7°C (46°F) and a maximum of 33°C (91°F), alongside much less precipitation at just 39 mm (1.5 in) over only 4 days and a drop in humidity to 51%. For more details on January's weather, visit Chiang Rai weather in January.
In July, the weather is distinctly hot and humid, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 37°C (98°F) and an average of 27°C (81°F). This month also experiences considerable rainfall, with 327 mm (12.9 in) of precipitation over 27 days, creating a high humidity level of 83%. In stark contrast, February offers much milder conditions, with temperatures ranging from a low of 10°C (51°F) to a high of 35°C (96°F), averaging 22°C (72°F). February is relatively dry, receiving only 16 mm (0.6 in) of precipitation over just 1 day, and features a significantly lower humidity of 46%. For more details, you can visit Chiang Rai weather in February.
July and March offer distinct weather experiences, with July characterized by high humidity and significant rainfall. In July, temperatures range from a minimum of 22°C (72°F) to a maximum of 37°C (98°F), paired with an average of 27°C (81°F) and a striking 327 mm (12.9 in) of precipitation spread over 27 days, resulting in a humid climate with 83% humidity. In contrast, March presents milder and dryer conditions, boasting temperatures that fluctuate from a minimum of 12°C (53°F) to a maximum of 39°C (102°F), with an average temperature of 25°C (78°F) and a mere 13 mm (0.5 in) of rain over just 2 days, alongside a much lower humidity level of 38%. For a deeper dive into the specifics of March weather, check out Chiang Rai weather in March.
In contrasting the weather between July and April, we see noteworthy differences in temperature and humidity. July typically experiences a minimum temperature of 22°C (72°F), an average of 27°C (81°F), and can peak at 37°C (98°F), accompanied by high humidity levels at 83%. In contrast, April presents slightly cooler minimum temperatures at 16°C (61°F) and an equally warm average of 27°C (80°F), but it can reach a maximum of 40°C (105°F), which is notably higher than July's peak. Additionally, while July receives substantial rainfall of 327 mm (12.9 in) over 27 days, April's precipitation is significantly less at 171 mm (6.7 in) over only 13 days. For more detailed insights, you can explore Chiang Rai weather in April.
When comparing the weather in July and May, we notice that both months have similar average temperatures around 27°C (81°F), but May experiences a higher maximum temperature of 41°C (106°F), while July peaks at a more moderate 37°C (98°F). In terms of humidity, July is significantly more humid at 83%, compared to May's 63%. Rainfall is also more abundant in July, with 327 mm (12.9 in) spread over 27 days, compared to May’s 203 mm (8.0 in) over 19 days. For more specifics on May weather, you can visit Chiang Rai weather in May.
In comparing the weather between July and June, we see some notable similarities and differences. Both months have a minimum temperature of around 22-23°C (72-73°F) and an average temperature of 27°C (81°F). However, July tends to be slightly more humid, reaching 83% compared to June's 81%. Precipitation is significantly higher in July, with 327 mm (12.9 in) occurring over 27 days, while June has 277 mm (10.9 in) over 25 days. This means that while both months experience similar average temperatures, July is typically wetter and more humid. For more detailed insights, you can check out the Chiang Rai weather in June.
When comparing the weather in July and August, we see that both months experience warm temperatures, with July having an average temperature of 27°C (81°F) and a maximum of 37°C (98°F), compared to August's average of 27°C (80°F) and max of 36°C (96°F). However, August tends to be slightly more humid, reaching 91%, while July has a humidity of 83%. Precipitation also increases in August, with a total of 382 mm (15.1 in) over 28 days, compared to July's 327 mm (12.9 in) over 27 days. For more specific insights into August's weather, you can check Chiang Rai weather in August.
In July, the weather in Chiang Rai is characterized by warmer temperatures, with minimums around 22°C (72°F) and maximums reaching up to 37°C (98°F), while September sees slightly cooler conditions, ranging from a minimum of 20°C (68°F) to a maximum of 35°C (96°F). Additionally, July experiences higher precipitation levels, with 327 mm (12.9 in) over 27 days, compared to September's 260 mm (10.2 in) over 24 days. Both months maintain a high humidity level of 83%, creating a muggy atmosphere throughout. For more specific insights on September conditions, you can visit Chiang Rai weather in September.
In comparing the weather between July and October, July is notably warmer, with average temperatures reaching around 27°C (81°F), peaking at 37°C (98°F). In contrast, October experiences slightly cooler temperatures, with an average of 25°C (78°F) and a maximum of 34°C (93°F). Additionally, July sees significantly more rainfall, with 327 mm (12.9 in) over 27 days, whereas October has just 161 mm (6.3 in) across 19 days. This difference in precipitation contributes to a higher humidity level in July, averaging 83%, compared to 67% in October. For more detailed information, you can check Chiang Rai weather in October.
The weather in July and November presents a striking contrast in both temperature and precipitation levels. In July, temperatures soar with a minimum of 22°C (72°F) and can reach a maximum of 37°C (98°F), accompanied by high humidity at 83%. This month sees significant rainfall, with 327 mm (12.9 in) recorded over 27 days, creating a humid and wet atmosphere. In contrast, November experiences milder temperatures, ranging from a minimum of 13°C (57°F) to a maximum of 33°C (93°F), and significantly less humidity at 60%. The precipitation drops dramatically to just 48 mm (1.9 in) over 9 days, offering a much drier and more pleasant climate. For those wanting to explore more about the weather during this month, visit Chiang Rai weather in November.
In July, the weather is characterized by high temperatures, with minimums around 22°C (72°F) and maximums reaching up to 37°C (98°F), alongside significant humidity at 83%. This month experiences heavy rainfall, averaging 327 mm (12.9 in) over 27 days, creating a sultry atmosphere. In contrast, December offers a much milder climate, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 32°C (90°F) and a much lower overall humidity of 56%. Additionally, precipitation drops dramatically to only 33 mm (1.3 in) across just 4 days. For more detailed weather insights in December, visit Chiang Rai weather in December.
In July, Chiang Rai experiences its monsoon season, characterized by high humidity and frequent rainfall, setting it apart from the drier months of the year. While temperatures can soar up to a sweltering 37°C, the consistent rain brings relief, lowering the average to a more manageable 27°C. This combination creates a lush, green landscape, supporting the burgeoning flora and making the region incredibly vibrant during this time. However, travelers should be prepared for the 27 days of precipitation that contribute to the area’s natural beauty but may also impact outdoor plans. For a comprehensive understanding of the climate throughout the year, check out Chiang Rai Climate.