Nakhon Ratchasima,
Thailand, presents a pleasantly warm climate during
January. As the first month of the year, it experiences gradually rising temperatures from the cooler winter days of
December. A highlight is the moderation in rainfall with only 1 day of rain and a total of 8mm (0.31"). While the evenings might require light garments, the overall favorable weather attracts tourists making it a popular time to visit. The relative humidity too is noticeably less, contributing to the comfortable weather.
Temperature
The ushering in of January brings an average high-temperature of a tropical 30.7°C (87.3°F), closely mirroring the 29.3°C (84.7°F) of December. Nakhon Ratchasima, after an intense day, registers a significant cooling to an average low-temperature of 18.5°C (65.3°F) throughout January.
Heat index
For most parts of January, the heat index is appraised at a torrid 35°C (95°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In January, the average relative humidity in Nakhon Ratchasima is 64%.
Rainfall
In January, in Nakhon Ratchasima, Thailand, the rain falls for 1 days. Throughout January, 8mm (0.31") of precipitation is accumulated. In Nakhon Ratchasima, Thailand, during the entire year, the rain falls for 111 days and collects up to 1072mm (42.2") of precipitation.
Daylight
In January, the average length of the day is 11h and 21min.
On the first day of January, sunrise is at 06:37 and sunset at 17:52. On the last day of the month, sunrise is at 06:40 and sunset at 18:09 +07.
Sunshine
The month with the most sunshine in Nakhon Ratchasima is January, with an average of 9.2h of sunshine.
UV index
In Nakhon Ratchasima, the average daily maximum UV index in January is 10. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily maximum UV index of 10 leads to the following instructions:
Always prioritize safety measures. Rapid harm can befall unprotected skin and eyes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. 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.