June weather forecast and climate
Chiang Rai, Thailand

June, the first month of the summer, in Chiang Rai, is also a hot month, with average temperature ranging between min 23.6°C (74.5°F) and max 32.1°C (89.8°F).

Temperature

In June, the average high-temperature is essentially the same as in May - a still tropical 32.1°C (89.8°F). In Chiang Rai, in June, the average low-temperature is 23.6°C (74.5°F).

Heat index

The average heat index is evaluated at a blistering 44.7°C (112.5°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, metabolic differences, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Chiang Rai, the average relative humidity is 80%.

Rainfall

In Chiang Rai, during 19 rainfall days, 178.4mm (7") of precipitation is typically accumulated. Throughout the year, there are 137 rainfall days, and 1690.5mm (66.6") of precipitation is accumulated.

Daylight

The month with the longest days in Chiang Rai is June, with an average of 13.3h of daylight.

Sunshine

June through August, with an average of 5h of sunshine, are months with the least sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index estimate of 11, and higher, represents an extreme threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.