Chiang Mai
Thailand
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Chiang Mai, Thailand

The stunning aerial panorama of the fantastic Two Pagoda on top of the Doi Inthanon mountain in Chiang Mai, Thailand
The stunning aerial panorama of the fantastic Two Pagoda on top of the Doi Inthanon mountain in Chiang Mai, Thailand
July, like June, is another hot summer month in Chiang Mai, Thailand, with average temperature ranging between min 23.9°C (75°F) and max 31.8°C (89.2°F).

Temperature

In Chiang Mai, the average high-temperature is essentially the same as in June - a still hot 31.8°C (89.2°F). In Chiang Mai, the average low-temperature is 23.9°C (75°F).

Heat index

In July, the average heat index is estimated at an extremely hot 43.2°C (109.8°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Chiang Mai, Thailand, is 79%.

Rainfall

In Chiang Mai, in July, during 16 rainfall days, 140.2mm (5.5") of precipitation is typically accumulated. In Chiang Mai, during the entire year, the rain falls for 113 days and collects up to 1130.6mm (44.5") of precipitation.

Daylight

The average length of the day in Chiang Mai is 13.1h.

Sunshine

In Chiang Mai, the average sunshine in July is 5.5h.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Chiang Mai. A UV Index reading of 11, and higher, represents an excessive health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 12 translate into the following recommendations:
Take all necessary precautions, as unprotected skin can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in July in Chiang Mai?

In Chiang Mai, in July, the average high-temperature is 31.8°C (89.2°F), and the average low-temperature is 23.9°C (75°F). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that factores the actual air temperature with the relative humidity, is evaluated at 43.2°C (109.8°F).

What is the average humidity in July in Chiang Mai?

In July, the average relative humidity in Chiang Mai, Thailand, is 79%.

How much does it rain in Chiang Mai in July?

In Chiang Mai, Thailand, during July, the rain falls for 16 days and regularly aggregates up to 140.2mm (5.5") of precipitation.

How many hours of daylight does Chiang Mai have in July?

In July, the average length of the day in Chiang Mai, Thailand, is 13.1h.

How long on average sun shines in July in Chiang Mai?

In July, the average sunshine is 5.5h.

What is the month with the highest UV index in Chiang Mai?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Chiang Mai, Thailand.

What is the UV index reading in July in Chiang Mai?

The average daily maximum UV index in July is 12. A UV Index reading of 11, and higher, represents an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in July - Chiang Mai, Thailand
  • Average high temperature in July: 31.8°C

The warmest month (with the highest average high temperature) is April (36.5°C).
The month with the lowest average high temperature is December (28.6°C).

  • Average low temperature in July: 23.9°C

The month with the highest average low temperature is June (24°C).
The coldest month (with the lowest average low temperature) is January (14.9°C).

Average humidity in July - Chiang Mai, Thailand
  • Average humidity in July: 79%

Months with the highest relative humidity are August and September (81%).
The month with the lowest relative humidity is March (52%).

Average rainfall in July - Chiang Mai, Thailand
  • Average rainfall in July: 140.2mm

The wettest month (with the highest rainfall) is August (216.9mm).
The driest month (with the lowest rainfall) is January (4.2mm).

Average rainfall days in July - Chiang Mai, Thailand
  • Average rainfall days in July: 16 days

The month with the highest number of rainy days is September (20 days).
Months with the lowest number of rainy days are January and December (1 days).

Average daylight in July / Average sunshine in July - Chiang Mai, Thailand
  • Average daylight in July: 13.1h

The month with the longest days is June (Average daylight: 13.3h).
The month with shortest days is December (Average daylight: 11h).

  • Average sunshine in July: 5.5h

The month with most sunshine is February (Average sunshine: 9h).
Months with least sunshine are August and September (Average sunshine: 5.2).

Average UV index in July - Chiang Mai, Thailand
  • Average UV index in July: 12

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).