October weather forecast
Chiang Rai, Thailand

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The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand
The White Temple of Wat Rong Khun with a waterfront fishpond in Chiang Rai, Thailand

Weather in October

October marks the end of the rainy season in Chiang Rai. The significant decrease in rainfall to 125mm (4.92") indicates a shift in the weather pattern. As temperatures start to dip and days get shorter, the city prepares to welcome the approaching cool season. Although the rain has moderated, the cityscape resonates with verdant beauty, rejuvenated by the recent monsoon showers. October in Chiang Rai is a fantastic time to explore the city as the weather is pleasant and the landscapes are lush green.

Temperature

With October's arrival, Chiang Rai's weather records an average high-temperature of a still hot 30.5°C (86.9°F), marking little difference from September's 31.1°C (88°F). Throughout October, an average low-temperature of 21.1°C (70°F) is expected.

Heat index

The heat index in October is estimated at a blistering 40°C (104°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. 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. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In October, the average relative humidity is 82%.

Rainfall

In Chiang Rai, in October, during 12 rainfall days, 125mm (4.92") of precipitation is typically accumulated. In Chiang Rai, during the entire year, the rain falls for 137 days and collects up to 1691mm (66.57") of precipitation.

Daylight

In October, the average length of the day in Chiang Rai is 11h and 41min.
On the first day of October, sunrise is at 06:11 and sunset at 18:08. On the last day of the month, sunrise is at 06:21 and sunset at 17:46 +07.

Sunshine

The average sunshine in October is 7h.

UV index

In October, the average daily maximum UV index is 10. A UV Index estimate of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 10 in October converts into the following recommendations:
Be vigilant. Without due care, eyes and skin can be harmed in no time. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Broad-spectrum sunscreen with an SPF of 30 or above should be applied generously and reapplied every two hours and right after any outdoor activity or swim.

Frequently asked questions

How hot is October?

In October, the average high-temperature and low-temperature are 30.5°C (86.9°F) and 21.1°C (70°F) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in October is estimated at 40°C (104°F).

What is the average humidity in October?

In October, the average relative humidity is 82%.

How much does it rain in Chiang Rai in October?

In Chiang Rai, in October, during 12 rainfall days, 125mm (4.92") of precipitation is typically accumulated.

What is the average length of the day in October?

In October, the average day length is 11h and 41min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 06:11 and sunset at 18:08. On the last day of the month, sunrise is at 06:21 and sunset at 17:46 +07.

How many hours of sunshine does Chiang Rai have in October?

The average sunshine duration in October is 7h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 10. A UV Index value of 8 to 10 symbolizes a very high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in October
Chiang Rai, Thailand

Average temperature in October - Chiang Rai, Thailand
  • Average high temperature in October: 30.5°C

The warmest month (with the highest average high temperature) is April (34.8°C).
The month with the lowest average high temperature is December (27.2°C).

  • Average low temperature in October: 21.1°C

The month with the highest average low temperature is June (23.6°C).
The coldest month (with the lowest average low temperature) is January (12.8°C).

Average humidity in October
Chiang Rai, Thailand

Average humidity in October - Chiang Rai, Thailand
  • Average humidity in October: 82%

The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is March (62%).

Average rainfall in October
Chiang Rai, Thailand

Average rainfall in October - Chiang Rai, Thailand
  • Average rainfall in October: 124.9mm

The wettest month (with the highest rainfall) is August (358.4mm).
The driest month (with the least rainfall) is January (7.5mm).

Average rainfall days in October
Chiang Rai, Thailand

Average rainfall days in October - Chiang Rai, Thailand
  • Average rainfall days in October: 12 days

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is February (1 days).

Average daylight in October /
Average sunshine in October
Chiang Rai, Thailand

Average daylight in October / Average sunshine in October - Chiang Rai, Thailand
  • Average daylight in October: 11h and 4min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in October: 7h

The month with the most sunshine is February (Average sunshine: 9h).
The months with the least sunshine are June, July and August (Average sunshine: 5h).

Average UV index in October
Chiang Rai, Thailand

Average UV index in October - Chiang Rai, Thailand
  • Average UV index in October: 10

The 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 7).

Chiang Rai, Thailand

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