December weather forecast
Nan, Thailand

December is the peak of winter in Nan, with cool weather creating a welcome contrast to the warmth of the holiday festivities. The awareness of winter's peak, combined with the anticipation of the year-end festivities, brings about a unique experience. Overcast skies give the cityscape a monochrome feel, while the decrease in daylight hours adds to the wintry ambiance. Among notable weather patterns, December records the lowest average high and low temperatures of 29.6°C (85.3°F) and 14.5°C (58.1°F) respectively. December presents an ideal setting to experience the festive spirit in the Thai city amidst the chilly calm weather.

Temperature

With average high and low temperatures of 29.6°C (85.3°F) and 14.5°C (58.1°F) respectively, December is Nan's coldest month.

Heat index

December's mean heat index is estimated at a torrid 36°C (96.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in December in Nan is 78%.

Rainfall

In Nan, in December, it is raining for 1 days, with typically 9mm (0.35") of accumulated precipitation. In Nan, during the entire year, the rain falls for 124 days and collects up to 1234mm (48.58") of precipitation.

Daylight

The month with the shortest days is December, with an average of 11h and 0min of daylight.
On the first day of December, sunrise is at 06:33 and sunset at 17:38. On the last day of the month, sunrise is at 06:49 and sunset at 17:50 +07.

Sunshine

In December, the average sunshine in Nan is 8h.

UV index

December is the month with the lowest UV index in Nan, Thailand, with an average maximum UV index of 8. A UV Index of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 8 transforms into these recommendations:
Always use protective measures; unprotected skin might suffer damage in a short span. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.