December weather forecast
Wiang Sa, Thailand

December, the first month of the winter in Wiang Sa, is also a moderately hot month, with an average temperature varying between 23.5°C (74.3°F) and 29.3°C (84.7°F).

Temperature

The coldest period is December, when temperatures fluctuate between an average high of 29.3°C (84.7°F) and a low of 23.5°C (74.3°F).

Heat index

December's heat index is calculated to be a fiery hot 36°C (96.8°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

With an average relative humidity of 81%, December is the most humid month.

Rainfall

In Wiang Sa, in December, it is raining for 23.4 days, with typically 83mm (3.27") of accumulated precipitation. In Wiang Sa, during the entire year, the rain falls for 259 days and collects up to 1101mm (43.35") of precipitation.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year in Wiang Sa.
On the first day of December, sunrise is at 06:22 and sunset at 18:01. On the last day of the month, sunrise is at 06:36 and sunset at 18:14 +07.

Sunshine

In Wiang Sa, Thailand, the average sunshine in December is 7.5h.

UV index

The months with the lowest UV index are November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.