January weather forecast
Ketajen, Indonesia

January, the same as December, in Ketajen, Indonesia, is a hot summer month, with an average temperature ranging between min 25.3°C (77.5°F) and max 30.1°C (86.2°F).

Temperature

In Ketajen, the months of January, February and July are known for the lowest temperatures, reaching an average high of 30.1°C (86.2°F).

Heat index

During January, the heat index is computed to be a sweltering 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in January is 78%.

Rainfall

In Ketajen, in January, it is raining for 27 days, with typically 172mm (6.77") of accumulated precipitation. Throughout the year, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 30min.
On the first day of the month, sunrise is at 05:15 and sunset at 17:48. On the last day of January, sunrise is at 05:29 and sunset at 17:55 WIB.

Sunshine

January has the least sunshine of the year, with an average of 8.1h of sunshine.

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 unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 7 in January transforms into the following instructions:
Shield from overexposure. Defense against sun-related harm is required. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.