January in
Bangkok,
Thailand, ushers in the New Year with elevated temperatures. The robust daylight period of 11.4 hours combined with 8.8 hours of sunshine classify this period as part of the dry season. Notably, the city sees a low rate of rainfall, with only 13mm (0.51") precipitation spread across a mere one day, rendering this as the driest period of the year. Both locals and tourists enjoy outdoor activities as the climate stays relatively comfortable with an average sea temperature of 26.7°C (80.1°F). The month's close sees a subtle escalation in temperatures, hinting at the impending heat of
February.
Temperature
January's average high-temperature stands at a still tropical 32.5°C (90.5°F), showing little deviation from
December's 31.7°C (89.1°F). Throughout January, Bangkok records an average temperature of 22.6°C (72.7°F) at night.
Heat index
During January, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in January in Bangkok is 68%.
Rainfall
In January, in Bangkok, Thailand, the rain falls for 1 days. Throughout January, 13mm (0.51") of precipitation is accumulated. In Bangkok, during the entire year, the rain falls for 128 days and collects up to 1648mm (64.88") of precipitation.
Sea temperature
With an average sea temperature of 26.7°C (80.1°F), January is the month with the coldest seawater in Bangkok.
Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
The average length of the day in January in Bangkok is 11h and 25min.
On the first day of January in Bangkok, sunrise is at 06:41 and sunset at 18:01. On the last day of the month, sunrise is at 06:45 and sunset at 18:17 +07.
Sunshine
The average sunshine in January in Bangkok is 8.8h.
UV index
In January, the average daily maximum UV index in Bangkok is 10. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 10 during January leads to these instructions:
Immediate care is essential; skin and eyes can be harmed in no time without it. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.