January weather forecast
Rengas, Indonesia

January, like December, in Rengas, Indonesia, is another warm summer month, with an average temperature varying between 29.7°C (85.5°F) and 25.3°C (77.5°F).

Temperature

Rengas, Indonesia, experiences a minor change to a moderately hot 29.7°C (85.5°F) in average high-temperature during January, closely reflecting December. January nights witness a slight temperature decrease, averaging at a still warm 25.3°C (77.5°F).

Heat index

In January, the average heat index is appraised at a very hot 35°C (95°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In January, the average relative humidity is 74%.

Rainfall

In January, the rain falls for 28.7 days. Throughout January, 182mm (7.17") of precipitation is accumulated. In Rengas, Indonesia, during the entire year, the rain falls for 270.6 days and collects up to 1523mm (59.96") of precipitation.

Daylight

The average length of the day in January is 12h and 26min.
On the first day of January, sunrise is at 05:41 and sunset at 18:10. On the last day of the month, sunrise is at 05:54 and sunset at 18:17 WIB.

Sunshine

The average sunshine in January is 9.5h.

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 unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 7 in January, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.