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

The commencement of January brings an average high-temperature of a still tropical 30°C (86°F), marking an inconsequential divergence from December. Nighttime temperatures consistently average a moderately hot 23.4°C (74.1°F) during January.

Heat index

The heat index value during January is estimated at a torrid 37°C (98.6°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. 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. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Cimahi, the average relative humidity in January is 77%.

Rainfall

In Cimahi, during January, the rain falls for 17.1 days and regularly aggregates up to 66mm (2.6") of precipitation. Throughout the year, there are 139.1 rainfall days, and 518mm (20.39") of precipitation is accumulated.

Daylight

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

Sunshine

The average sunshine in January is 9.6h.

UV index

The months with the highest UV index in Cimahi are January through December, with an average maximum UV index of 7. 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 hazard from exposure to the Sun's UV rays for the average person.
Note: In January, a daily maximum UV index of 7 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.