January weather forecast
Sei Mati, Indonesia

January, like December, in Sei Mati, Indonesia, is another warm winter month, with an average temperature varying between 24.1°C (75.4°F) and 29.9°C (85.8°F).

Temperature

Transitioning into January, Sei Mati records an average high-temperature of a still warm 29.9°C (85.8°F), almost identical to December's 29.7°C (85.5°F). Throughout January, Sei Mati witnesses a consistent average low-temperature of 24.1°C (75.4°F).

Heat index

The heat index value during January is evaluated at a very hot 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

In January, the average relative humidity is 79%.

Rainfall

In Sei Mati, during January, the rain falls for 25 days and regularly aggregates up to 100mm (3.94") of precipitation. In Sei Mati, during the entire year, the rain falls for 317.8 days and collects up to 1437mm (56.57") of precipitation.

Daylight

In January, the average length of the day is 11h and 56min.
On the first day of January, sunrise is at 06:30 and sunset at 18:26. On the last day of the month, sunrise is at 06:39 and sunset at 18:37 WIB.

Sunshine

In Sei Mati, Indonesia, the average sunshine in January is 8.6h.

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 estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in January leads to these guidelines:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.