January weather forecast
Sruni, Indonesia

January, like December, is a hot summer month in Sruni, Indonesia, with an average temperature varying between 30.2°C (86.4°F) and 23.6°C (74.5°F).

Temperature

Sruni records an average high-temperature of a still hot 30.2°C (86.4°F) in January, maintaining a close correlation with December's 31.5°C (88.7°F). During January, the average low-temperature is recorded at a moderately hot 23.6°C (74.5°F).

Heat index

January's heat index is estimated at a very hot 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', shows a temperature sensation when both heat and moisture conditions are combined. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. 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. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in January is 83%.

Rainfall

In Sruni, during January, the rain falls for 30.1 days and regularly aggregates up to 261mm (10.28") of precipitation. Throughout the year, there are 218.3 rainfall days, and 1409mm (55.47") of precipitation is accumulated.

Daylight

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

Sunshine

January has the least sunshine of the year, with an average of 7.1h of sunshine.

UV index

The months with the lowest UV index in Sruni are January and March, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 6 transforms into these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Always opt for UVA and UVB-resistant sunglasses on radiant days.