January weather forecast
Bubulak, Indonesia

January, like December, in Bubulak, Indonesia, is a moderately hot summer month, with an average temperature varying between 26.1°C (79°F) and 29.7°C (85.5°F).

Temperature

The average high-temperature for January is a moderately hot 29.7°C (85.5°F), closely aligning with the temperature of the preceding month. In January, Bubulak temperatures settle at a low of 26.1°C (79°F) during the nights, reflecting a minor change from daytime highs.

Heat index

The heat index value during January is evaluated at a sweltering 35°C (95°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Consider that heat index readings are for situations in the shade and light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in January is 75%.

Rainfall

In Bubulak, during January, the rain falls for 23.3 days and regularly aggregates up to 134mm (5.28") of precipitation. In Bubulak, during the entire year, the rain falls for 256.9 days and collects up to 1138mm (44.8") of precipitation.

Daylight

The average length of the day in January in Bubulak is 12h and 27min.
On the first day of January, sunrise is at 05:41 and sunset at 18:11. On the last day of the month, sunrise is at 05:54 and sunset at 18:18 WIB.

Sunshine

The average sunshine in January is 9.4h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In January, a daily maximum UV index of 7 leads to the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.