January weather forecast
Banjarmasin, Indonesia

January commences the year with moderate warmth and significant rainfall for Banjarmasin, Indonesia, with temperatures mostly ranging from 24.8°C (76.6°F) to 30.8°C (87.4°F). This month sets the pace for an intense humidity and pressure, paving the way for the monsoon season. The general climate is moist with a relatively high cloud reading that impairs visibility. Consequently, the city experiences heavy downpours, keeping the city's hustle to a minimum. The new year sets off with an average of 199mm (7.83") of rain showers.

Temperature

Banjarmasin experiences its coldest period in January, June and July, averaging a high-temperature of 30.8°C (87.4°F).

Heat index

During January, the heat index is evaluated at a blistering 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Understand that the heat index values take into account shaded locations 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 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception 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

In Banjarmasin, the average relative humidity in January is 80%.

Rainfall

In Banjarmasin, during January, the rain falls for 29 days and regularly aggregates up to 199mm (7.83") of precipitation. Throughout the year, there are 249.1 rainfall days, and 1596mm (62.83") of precipitation is accumulated.

Sea temperature

In Banjarmasin, in January, the average water temperature is 29.3°C (84.7°F).
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

In January, the average length of the day is 12h and 17min.
On the first day of January, sunrise is at 06:15 and sunset at 18:34. On the last day of the month, sunrise is at 06:27 and sunset at 18:42 WITA.

Sunshine

In Banjarmasin, Indonesia, the average sunshine in January is 7.2h.

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 threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: During January, 7 as the daily maximum UV index converts into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Heads up! UV intensity is amplified by reflections from water and sand.