January weather forecast
Cimahi, Indonesia

January sees the onset of humid weather in Cimahi, Indonesia, marked by an average relative humidity of 77%. The weather remains generally warm during the day, paving the way for a pleasant dawn and dusk. Predominantly, this month is characterized by frequent showers and reduced sunlight. Despite the constant moisture in the air, the wind maintains a gentle speed, providing moments of relief. Daily temperature fluctuations are minor, maintaining a comfortable atmosphere throughout the month.

Temperature

At the onset of January, Cimahi records an average high-temperature of a still tropical 30°C (86°F), showing little deviation from the preceding month. Cimahi experiences an average low-temperature of 23.4°C (74.1°F) in month of January.

Heat index

January's average heat index is estimated at a very hot 37°C (98.6°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. 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 77%.

Rainfall

In Cimahi, in January, it is raining for 17.1 days, with typically 66mm (2.6") of accumulated precipitation. Throughout the year, there are 139.1 rainfall days, and 518mm (20.39") of precipitation is accumulated.

Daylight

The average length of the day in January in Cimahi is 12h and 28min.
On the first day of January, sunrise is at 05:37 and sunset at 18:08. On the last day of the month, sunrise is at 05:50 and sunset at 18:15 WIB.

Sunshine

The average sunshine in January is 9.6h.

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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during January translates into these guidelines:
Fend off overexposure. Sun protection is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.