January weather forecast
Rantau, Malaysia

January, the same as December, in Rantau, Malaysia, is another hot winter month, with an average temperature fluctuating between 22.8°C (73°F) and 30.8°C (87.4°F).

Temperature

January's average high-temperature stands at a still hot 30.8°C (87.4°F), showing little deviation from December's 30.5°C (86.9°F). Rantau records an average low-temperature of 22.8°C (73°F) throughout the month of January.

Heat index

For most parts of January, the heat index is evaluated at a blisteringly hot 41°C (105.8°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. 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. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in January is 81%.

Rainfall

In Rantau, in January, during 21.8 rainfall days, 74mm (2.91") of precipitation is typically accumulated. In Rantau, during the entire year, the rain falls for 245.4 days and collects up to 951mm (37.44") of precipitation.

Daylight

In Rantau, the average length of the day in January is 11h and 59min.
On the first day of January, sunrise is at 7:16 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:25 pm +08.

Sunshine

In Rantau, the average sunshine in January is 7.5h.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 7 in January translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. 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. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.