January weather forecast
Merauke, Indonesia

Typically, the year begins in Merauke, Indonesia with moderately high temperatures and significant precipitation. January's weather closely resembles that of December, with only slight differences in temperature and humidity levels. January is the wettest month, seeing an average rainfall of 167mm (6.57") across approximately 27 days. Comparatively, the following month, February, experiences slightly less rainfall. Notably, there is ample daylight in January, offering an average of 12.6 hours per day, which is a common characteristic of tropical regions.

Temperature

Merauke experiences a subtle adjustment in high-temperatures to a still tropical 31.3°C (88.3°F) with the onset of January, maintaining near parity with December's 32.4°C (90.3°F). January brings Merauke a consistent average low-temperature of 25.7°C (78.3°F).

Heat index

January's heat index is appraised at a blistering 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

In January, the average relative humidity in Merauke is 79%.

Rainfall

In January, in Merauke, the rain falls for 26.8 days. Throughout January, 167mm (6.57") of precipitation is accumulated. Throughout the year, in Merauke, Indonesia, there are 213.7 rainfall days, and 1054mm (41.5") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater are January through April and December, with an average sea temperature of 29°C (84.2°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.

Daylight

In January, the average length of the day is 12h and 34min.
On the first day of January in Merauke, sunrise is at 05:23 and sunset at 17:59. On the last day of the month, sunrise is at 05:37 and sunset at 18:06 WIT.

Sunshine

In January, the average sunshine is 8.9h.

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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 7 in January translates into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.