January weather forecast
Tanjakan, Indonesia

January, the same as December, is a moderately hot summer month in Tanjakan, Indonesia, with an average temperature ranging between min 26.1°C (79°F) and max 29.7°C (85.5°F).

Temperature

The arrival of January coincides with an average high-temperature of a warm 29.7°C (85.5°F), indicating a minimal shift from December's 30.4°C (86.7°F). Tanjakan's January nights exhibit a subtle drop in temperature, averaging at 26.1°C (79°F), closely aligned with the daytime highs.

Heat index

In January, the heat index is computed to be a very hot 35°C (95°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Tanjakan, the average relative humidity in January is 75%.

Rainfall

In Tanjakan, during January, the rain falls for 23.3 days and regularly aggregates up to 134mm (5.28") of precipitation. Throughout the year, in Tanjakan, there are 256 rainfall days, and 1133mm (44.61") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 26min.
On the first day of the month, sunrise is at 05:42 and sunset at 18:11. On the last day of January, sunrise is at 05:55 and sunset at 18:18 WIB.

Sunshine

In January, the average sunshine is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in January converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.