December weather forecast
Tarimbang, Indonesia

The first month of the summer, December, is also a hot month in Tarimbang, Indonesia, with an average temperature varying between 25.6°C (78.1°F) and 30°C (86°F).

Temperature

With the onset of December, the average high-temperature registers at a still hot 30°C (86°F), subtly different from November's 30.5°C (86.9°F). During December, Tarimbang's nights hold steady with an average temperature of 25.6°C (78.1°F), barely dropping from the daytime highs.

Heat index

December's mean heat index is computed to be a fiery hot 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Tarimbang, Indonesia, the average relative humidity in December is 78%.

Rainfall

In Tarimbang, in December, during 28.5 rainfall days, 156mm (6.14") of precipitation is typically accumulated. Throughout the year, there are 191.2 rainfall days, and 892mm (35.12") of precipitation is accumulated.

Sea temperature

December is the month with the warmest seawater, with an average sea temperature of 30.2°C (86.4°F).
Note: Many believe that the true refreshing essence of water diminishes when temperatures rise above 30°C (86°F).

Daylight

The month with the longest days is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:29 and sunset at 18:09. On the last day of December, sunrise is at 05:42 and sunset at 18:24 WITA.

Sunshine

The average sunshine in December is 10.4h.

UV index

January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 7 transforms into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Beware! Reflecting off water and sand, UV rays are much stronger.