January weather forecast
Gulun, Indonesia

January, the same as December, is another warm summer month in Gulun, Indonesia, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 28.8°C (83.8°F).

Temperature

January's onset records an average high-temperature of a still moderately hot 28.8°C (83.8°F), a near match to December's 29°C (84.2°F). An average low-temperature of 22.8°C (73°F) marks the nights throughout January.

Heat index

The heat index value for January is estimated at a sweltering 35°C (95°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. 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

In January, the average relative humidity is 84%.

Rainfall

In January, the rain falls for 25.1 days. Throughout January, 138mm (5.43") of precipitation is accumulated. Throughout the year, there are 247.2 rainfall days, and 1234mm (48.58") of precipitation is accumulated.

Daylight

In Gulun, the average length of the day in January is 12h and 31min.
On the first day of January, sunrise is at 05:20 and sunset at 17:54. On the last day of the month, sunrise is at 05:34 and sunset at 18:00 WIB.

Sunshine

The average sunshine in January is 7.8h.

UV index

January, March through August, November and December, with an average maximum UV index of 6, 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 the ordinary person.
Note: A typical high UV index of 6 in January suggests the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.