December weather forecastLeahari, Indonesia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Leahari, Indonesia, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 27.3°C (81.1°F).Temperature
December brings the highest temperatures, with an average high of 29.5°C (85.1°F) and an average low of 27.3°C (81.1°F).Heat index
In December, the heat index is computed to be a sweltering 35°C (95°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 especially vital to children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
November and December, with an average relative humidity of 74%, are the least humid months.Rainfall
In Leahari, during December, the rain falls for 27.1 days and regularly aggregates up to 131mm (5.16") of precipitation. Throughout the year, there are 289 rainfall days, and 1570mm (61.81") of precipitation is accumulated.Daylight
With an average of 12h and 18min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 06:06 and sunset at 18:25. On the last day of the month, sunrise is at 06:19 and sunset at 18:40 WIT.
Sunshine
In December, the average sunshine in Leahari is 8.6h.UV index
January through May, 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 risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during December translates into the following guidance:
Prevent overexposure. Protection from the sun's harmful effects is needed. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Leahari, Indonesia
- Average high temperature in December: 29.5°C
The warmest month (with the highest average high temperature) is December (29.5°C).
The month with the lowest average high temperature is August (26.6°C).
- Average low temperature in December: 27.3°C
The month with the highest average low temperature is December (27.3°C).
The coldest month (with the lowest average low temperature) is August (24.7°C).
Average pressure in December
Leahari, Indonesia
- Average pressure in December: 1007.9mbar
The month with the highest atmospheric pressure is August (1011.1mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in December
Leahari, Indonesia
- Average wind speed in December: 10.1km/h
The windiest month (with the highest average wind speed) is July (19.2km/h).
The calmest month (with the lowest average wind speed) is November (8.4km/h).
Average humidity in December
Leahari, Indonesia
- Average humidity in December: 74%
The month with the highest relative humidity is July (82%).
The months with the lowest relative humidity are November and December (74%).
Average rainfall in December
Leahari, Indonesia
- Average rainfall in December: 131mm
The wettest month (with the highest rainfall) is June (232mm).
The driest months (with the least rainfall) are September and October (59mm).
Average rainfall days in December
Leahari, Indonesia
- Average rainfall days in December: 27.1 days
The month with the highest number of rainy days is March (27.5 days).
The month with the least rainy days is October (18.4 days).
Average daylight in December /
Average sunshine in December
Leahari, Indonesia
- Average daylight in December: 12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 36min
The month with the most sunshine is November (Average sunshine: 9h and 0min).
The month with the least sunshine is July (Average sunshine: 5h and 54min).
Average sunshine days in December
Leahari, Indonesia
- Average sunshine days in December: 3.1 days
The month with the most sunshine days is October (7.8 days).
The month with the least sunshine days is April (2.1 days).
Average UV index in December
Leahari, Indonesia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 7).
The months with the lowest UV index are June and July (UV index 6).
Average cloud cover in December
Leahari, Indonesia
- Average cloud cover in December: 39
The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in December
Leahari, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is April (9km).





