January weather forecast
Nan, Thailand

January in Nan, Thailand offers a respite from the cooler winter months, with temperatures gradually beginning to climb. The weather remains predominantly dry at this time, making it a preferred period for outdoor pursuits. There's an increase in daylight with about 11.1 hours of sunlight. The distinct feature of weather in this season is the lowest rainfall of 4mm (0.16") and just one downpour day. Late January marks the beginning of the warmer season with a pleasant climate fostering growth and greenery throughout Nan.

Temperature

In January, Nan experiences a minor shift in meteorological conditions with average high-temperatures marked at a tropical 30.8°C (87.4°F), closely mirroring the climate in December. Nan's January nights bring a significant temperature shift, averaging at a mild 14.2°C (57.6°F).

Heat index

January's mean heat index is estimated at a torrid 39°C (102.2°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Nan, the average relative humidity in January is 76%.

Rainfall

January is the month with the least rainfall. Rain falls for 1 days and accumulates 4mm (0.16") of precipitation.

Daylight

The average length of the day in January is 11h and 9min.
On the first day of January, sunrise is at 06:49 and sunset at 17:50. On the last day of the month, sunrise is at 06:51 and sunset at 18:09 +07.

Sunshine

The months with the most sunshine are January through April, with an average of 9h of sunshine.

UV index

In Nan, Thailand, the average daily maximum UV index in January is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, a daily UV index of 9 turns into the following recommendations:
Ensure you act responsibly. Without precautions, skin and eyes can suffer. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Regardless of the cloudiness of the day, a sunscreen with SPF 30 or more should be applied and reapplied generously, specifically after swimming or outdoor exercise.