July Weather in Chiang Mai, Thailand

Last updated: August 27, 2025

July in Chiang Mai, Thailand is characterized by a tropical climate, featuring maximum temperatures soaring up to 40°C (104°F), with an average of 28°C (83°F) and a minimum of 23°C (73°F). This month also marks the heart of the rainy season, receiving an impressive 218 mm (8.6 in) of precipitation spread across 22 days, bringing much-needed water to the region. The high humidity level, around 83%, adds to the tropical atmosphere, creating a lush and vibrant environment. Travelers should be prepared for unpredictable weather while enjoying the unique cultural experiences Chiang Mai has to offer during this lively month.

July Temperature in Chiang Mai

In July, Chiang Mai experiences warm and humid weather, characteristic of its tropical climate. With minimum temperatures hovering around 23°C (73°F), the city provides a comfortable backdrop for outdoor exploration. The average temperature stands at a balmy 28°C (83°F), while maximum temperatures can reach up to 40°C (104°F), showcasing the persistent heat that defines the summer months. This month marks a transition from the scorching April and May, where temperatures often spike, to slightly cooler August, indicating a gradual easing into the rainy season. The combination of warmth and occasional rains contributes to the lush, vibrant landscapes, making July an appealing time for nature enthusiasts and travelers eager to experience the beauty of Chiang Mai.

July Weather in Chiang Mai: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Chiang Mai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chiang Mai, July typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec727582848684828181797670
Data source: Temperature data for Chiang Mai generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Chiang Mai

In July, Chiang Mai experiences a significant surge in precipitation, with an impressive 218 mm (8.6 in) of rain falling over 22 days—making it one of the wettest months of the year. This marks a notable increase from the already substantial rainfall in June, which saw 145 mm (5.7 in). The trend continues into August, where rainfall peaks even further, highlighting the monsoon's grip on the region during these summer months. As the rain nourishes the lush landscapes, it also shifts the city's atmosphere, embracing the vibrant greens and revitalizing local flora, while encouraging visitors to seek shelter from the downpours and discover the charm of Chiang Mai amidst the rainy season.

July Precipitation Trends in Chiang Mai

The chart displays monthly precipitation patterns in Chiang Mai, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Chiang Mai, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec102142821452182681981562413
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Chiang Mai

In Chiang Mai, Thailand, the weather becomes increasingly humid as the year progresses, culminating in a peak during July with a humidity level of 83%. This notable increase from 63% in May and 81% in June reflects the onset of the monsoon season, which typically brings heavy rainfall. As the summer months roll in, humidity levels continue to soar, reaching even higher in August at 91%. This sticky air often persists through late summer and early fall, evidenced by the consistent humidity levels of 83% in September before gradually tapering off to more comfortable levels in October. Overall, the trend indicates a clear shift from the drier months at the beginning of the year, with humidity levels rising dramatically as the region embraces its lush, tropical climate.

July Average Humidity in Chiang Mai

This chart illustrates the average monthly humidity levels in Chiang Mai, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Chiang Mai is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%46%38%36%64%81%83%91%83%67%61%56%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Chiang Mai

In July, Chiang Mai experiences a UV Index of 14, falling into the extreme exposure category and necessitating careful sun protection, as burn time is just 10 minutes. This trend of high UV levels extends from May through September, with consistent readings that demand vigilance for sun safety. Notably, July's UV Index remains tied with both May and June, reinforcing the need for sunscreen and protective clothing during this sweltering season. As temperatures soar and the sun’s rays intensify, awareness becomes crucial for both locals and travelers alike. For more detailed insights and tips on managing sun exposure, visit Chiang Mai UV Index.

Maximum UV Index Levels in Chiang Mai for July

The chart shows the monthly maximum UV Index (UVI) for Chiang Mai in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in Chiang Mai typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9101313141414141413108
Data source: Chiang Mai July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Chiang Mai

July in Chiang Mai, Thailand, offers a delightful tapestry of sunshine with 254 hours of bright daylight. While slightly less than the sun-drenched peaks of March (338 hours) and April (321 hours), this month still basks in ample sunshine as the city transitions into the rainy season. Following the vibrant months of February through May, which consistently showcase over 299 hours of light, July serves as a gentle reminder of the shifting weather patterns, blending the warmth of summer with refreshing rainfalls, ultimately creating a lush and vibrant atmosphere. As the days gradually shorten into August, which sees a dip to 233 hours, July stands as a pivotal month, balancing sunshine with the promise of rejuvenating rains.

Monthly Sunshine Duration in Chiang Mai: July Highlighted

The July sunshine duration represents the total number of hours Chiang Mai experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec246h299h338h321h330h269h254h233h262h273h291h306h
Data source: Chiang Mai July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chiang Mai During July

July in Chiang Mai, Thailand, is characterized by a notably low likelihood of sunny weather, with only a 12% chance of sun. This trend persists from June's similarly dreary 12% and continues into August, which drops even further to 11%. Notably, this period marks a significant transition from the bright, sun-filled days seen in the earlier months, where the chances soar to around 82% in February and peak at 83% in March. As the rainy season takes hold, visitors can expect a departure from the sun-drenched skies typical of the first half of the year, encouraging travelers to prepare for overcast days and increased likelihood of showers during this time.

Percentage of Sunny Days in July in Chiang Mai

The chart illustrates the percentage of sunny days in Chiang Mai throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Chiang Mai experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec76%82%83%38%45%12%12%11%20%25%54%76%
Data source: Chiang Mai July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chiang Mai in July

In Chiang Mai, Thailand, the summer month of July enjoys a delightful 13 hours of daylight, maintaining the extended daylight trend that begins in May and persists through the early days of August. This period marks the height of light, with daylight peaking at 13 hours from May to July, providing ample time for exploration and outdoor activities. As the year progresses towards late summer, daylight gradually recedes to 12 hours in August, before returning to 11 hours by October. The consistency in daylight duration showcases the tropical climate's appealing balance, making Chiang Mai a captivating destination for travelers seeking to experience the vibrant culture and natural beauty throughout the year.

Average Daylight Hours in Chiang Mai for July

The chart illustrates the variation in daylight duration in Chiang Mai throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 7m11h 31m12h 1m12h 33m13h13h 13m13h 6m12h 43m12h 13m11h 41m11h 14m11h
Data source: Chiang Mai daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Chiang Mai

In July, Chiang Mai experiences a gentle breeze with an average wind speed of 1.2 m/s (3 mph), reflecting a slight dip from the previous month. This calming wind is consistent with the trend observed throughout the rainy season, where the weather tends to be more subdued. Notably, July mirrors February and April's conditions, maintaining a refreshing atmosphere ideal for exploring the city's vibrant culture and lush landscapes. As the winds are generally mild, they complement the warm summer days, inviting both locals and travelers to enjoy outdoor activities amidst Chiang Mai's breathtaking scenery.

Average July Wind Speed in Chiang Mai

The chart displays monthly wind speed patterns in Chiang Mai, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.21.31.21.31.41.2 m/s1.21.00.91.01.2
Data source: Chiang Mai July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Chiang Mai Compares to Other Months

Weather in Chiang Mai varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Chiang Mai, focusing on differences in temperature, rainfall, humidity, and UV levels.

In July, the weather in Chiang Mai is characterized by high temperatures, with a minimum of 23°C (73°F) and an average of 28°C (83°F), peaking at a scorching 40°C (104°F). This month also sees significant precipitation, with 218 mm (8.6 in) of rain spread over 22 days, contributing to a high humidity level of 83%. In contrast, January offers a much cooler climate with a minimum temperature of 10°C (51°F), an average of 22°C (72°F), and a maximum of 34°C (93°F). Rain is minimal during this month, with only 10 mm (0.4 in) of precipitation over just 2 days, and humidity drops to a comfortable 51%. For more details, check out Chiang Mai weather in January.

July and February present stark contrasts in weather. In July, temperatures range from a minimum of 23°C (73°F) to a scorching maximum of 40°C (104°F), accompanied by high humidity at 83% and significant rainfall of 218 mm (8.6 in) over 22 days. This creates a hot and humid environment, typical of the rainy season. In contrast, February offers much more temperate conditions with a minimum temperature of 11°C (53°F) and a maximum of 36°C (97°F), resulting in a comfortable average of 24°C (75°F). Notably, February experiences very little precipitation, with only 2 mm (0.1 in) recorded over the entire month, and humidity levels are considerably lower at 46%. For more insights, check out Chiang Mai weather in February.

In July, Chiang Mai experiences a tropical climate characterized by high humidity, averaging 83% and significant rainfall, totaling 218 mm over 22 days. The temperatures range from a minimum of 23°C (73°F) to a maximum of 40°C (104°F), resulting in an average of around 28°C (83°F). In contrast, March offers a much drier atmosphere with virtually no rainfall (only 1 mm) and lower humidity at 38%. While temperatures are similar, ranging from a minimum of 16°C (60°F) to a maximum of 40°C (104°F), the overall weather in March is more pleasant and comfortable for outdoor activities. For more details on the weather in March, visit Chiang Mai weather in March.

When comparing the weather in July and April, notable differences emerge. July tends to be more humid with an average temperature of 28°C (83°F) and maximums reaching up to 40°C (104°F), contrasted by April, which, despite having a slightly higher average temperature of 29°C (85°F), boasts a maximum of 42°C (107°F). April experiences significantly less rainfall, with only 42 mm (1.7 in) over about 6 days, while July sees a much wetter month with 218 mm (8.6 in) across 22 days. This results in July having a much higher humidity level of 83%, compared to April's more comfortable 36%. For more detailed information, you can visit Chiang Mai weather in April.

In comparing the weather between May and July, it's evident that both months experience warm temperatures, but they differ significantly in humidity and precipitation. May often sees slightly higher average temperatures, peaking at 41°C (106°F), while July's temperatures are a bit cooler on average, with a maximum of 40°C (104°F). However, July is notably wetter, receiving 218 mm (8.6 in) of rain over 22 days, compared to May's 82 mm (3.2 in) across just 9 days. This results in July having a much higher humidity level at 83%, contrasted with May's 63%. For more insights specifically on May's weather patterns, you can refer to Chiang Mai weather in May.

In comparing the weather between June and July, both months share a similar range of temperatures, with minimums around 23°C (73°F), maximums reaching up to 40°C (104°F), and average temperatures slightly favoring June at 29°C (84°F) compared to July's 28°C (83°F). However, July tends to be more humid, with an average humidity of 83% compared to June's 81%. Additionally, July experiences significantly more rainfall, recording 218 mm (8.6 in) across 22 days, whereas June sees 145 mm (5.7 in) of precipitation over 17 days. For more detailed information, you can check Chiang Mai weather in June.

In comparing the weather between July and August, July experiences slightly higher average temperatures, with a maximum of 40°C (104°F) compared to August's 36°C (97°F). However, August sees an increase in precipitation, measuring 268 mm (10.5 in) over 26 days, which is more than July's 218 mm (8.6 in) over 22 days. Additionally, humidity levels rise in August to 91%, up from 83% in July, making it feel more oppressive. For more detailed insights, you can check out Chiang Mai weather in August.

In comparison to July, September typically features slightly cooler temperatures, with a minimum of 22°C (71°F) and an average of 27°C (81°F), compared to July's minimum of 23°C (73°F) and an average of 28°C (83°F). The maximum temperature in September reaches 35°C (95°F), significantly lower than July's peak of 40°C (104°F). Additionally, while both months experience high humidity at 83%, September sees a minor reduction in precipitation, with 198 mm (7.8 in) of rainfall over 21 days, compared to July's 218 mm (8.6 in) over 22 days. For more detailed information, check out Chiang Mai weather in September.

When comparing the weather between July and October, notable differences emerge. July typically experiences higher temperatures, with averages reaching up to 28°C (83°F) and maximums soaring to 40°C (104°F). In contrast, October offers a slightly cooler climate, where average temperatures hover around 26°C (80°F) and maximums peak at 34°C (94°F). Rainfall is also more prominent in July, with 218 mm (8.6 in) over 22 days, compared to October's 156 mm (6.1 in) across 18 days. Additionally, October boasts lower humidity levels at 67%, making it feel less oppressive than the muggy July atmosphere, where humidity sits at 83%. For more detailed insights, check Chiang Mai weather in October.

In July, the weather is characterized by high temperatures, with minimums around 23°C (73°F) and maximums soaring up to 40°C (104°F), averaging 28°C (83°F). Coupled with high humidity at 83%, the month experiences significant rainfall, totaling 218 mm (8.6 in) over 22 days, making it a rather wet period. In contrast, November offers a more temperate climate, with lower temperatures ranging from a minimum of 13°C (56°F) to a maximum of 34°C (93°F), averaging 25°C (77°F). The humidity also drops to 60%, and rainfall is considerably less, with only 24 mm (0.9 in) over just 5 days. For a more detailed insight into the weather in November, check out Chiang Mai weather in November.

In July, the weather in Chiang Mai is characterized by high temperatures, with lows around 23°C (73°F) and highs soaring to 40°C (104°F), coupled with a significant amount of precipitation totaling 218 mm (8.6 in) over 22 rainy days. The humidity is quite high at 83%, making the heat feel more intense and oppressive. In contrast, December sees much milder conditions, with temperatures ranging from a low of 6°C (43°F) to a comfortable high of 33°C (91°F). The month is notably drier, receiving only 13 mm (0.5 in) of rain over just 1 day, and the humidity drops to a more pleasant 56%. For a closer look at the weather specifics in December, check out Chiang Mai weather in December.

Compare Chiang Mai's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Chiang Mai

In July, Chiang Mai experiences a unique blend of warm temperatures and high humidity, standing out from other months in the year. While the city basks in an average warmth of 28°C, temperatures can spike up to a sizzling 40°C. The monsoon season brings a significant increase in precipitation, with most days seeing rain, leading to lush landscapes and vibrant greenery. This combination of heat and moisture makes July a particularly humid month, setting it apart from the generally drier months of the year. For those looking to plan their visit, an understanding of the weather patterns is crucial. Explore more about the nuances of the weather in the region through our detailed guide at Chiang Mai Climate.