December weather forecast
Langsa, Indonesia

The first month of the winter, December, is still a hot month in Langsa, Indonesia, with temperature in the range of an average high of 30.3°C (86.5°F) and an average low of 24°C (75.2°F).

Temperature

Langsa, Indonesia, starts December with an average high-temperature of a still hot 30.3°C (86.5°F), hinting at a minimal fluctuation from November. December nights in Langsa experience a consistent temperature drop to a moderately hot 24°C (75.2°F).

Heat index

During December, the heat index is computed to be a very hot 39°C (102.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

January and December, with an average relative humidity of 80%, are the most humid months in Langsa.

Rainfall

December is the month with the most rainfall in Langsa. Rain falls for 27 days and accumulates 143mm (5.63") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 54min of daylight.
On the first day of the month, sunrise is at 06:20 and sunset at 18:13. On the last day of December, sunrise is at 06:35 and sunset at 18:27 WIB.

Sunshine

The month with the least sunshine is December, with an average of 7.6h 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 in Langsa are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 7 transforms into these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.