January weather forecast
Batam, Indonesia

Kicking off the year, January in Batam, Indonesia sees a blend of warm temperatures and high humidity. It bears a similarity to December, retaining its temperate conditions. With 79% relative humidity, signs of heavy rainfall of 137mm (5.39") are prominent. The landscape of Batam often gleams with lush greenery brought on by frequent showers. As January transitions to February, a slight drop in humidity is expected, making February somewhat less oppressive.

Temperature

January, noted for its average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 25.7°C (78.3°F), is considered the coldest month.

Heat index

For most parts of January, the heat index is evaluated at a torrid 35°C (95°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 79%.

Rainfall

In January, in Batam, the rain falls for 20.3 days. Throughout January, 137mm (5.39") of precipitation is accumulated. Throughout the year, in Batam, there are 267.5 rainfall days, and 1342mm (52.83") of precipitation is accumulated.

Daylight

The average length of the day in January is 12h and 4min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:09. On the last day of January, in Batam, sunrise is at 06:14 and sunset at 18:19 WIB.

Sunshine

The months with the least sunshine in Batam are January and December, with an average of 7.5h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 7 in January translates into the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.