December weather forecastMega, Indonesia
December
Weather in December
The first month of the summer, December, is also a hot month in Mega, Indonesia, with an average temperature fluctuating between 30.4°C (86.7°F) and 25.3°C (77.5°F).Temperature
As Mega, Indonesia, welcomes December, the average high-temperature stabilizes at a still tropical 30.4°C (86.7°F), showing little deviation from November's 30.5°C (86.9°F). During December, Mega observes a consistent average nighttime temperature of 25.3°C (77.5°F).Heat index
During December, the heat index is appraised at a very hot 39°C (102.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. 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 body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In December, the average relative humidity in Mega is 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 29.1 days and typically aggregates up to 186mm (7.32") of precipitation.Daylight
With an average of 12h and 12min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 05:56 and sunset at 18:06. On the last day of the month, sunrise is at 06:10 and sunset at 18:20 WIT.
Sunshine
The average sunshine in December is 7.9h.UV index
The months with the lowest UV index in Mega are August, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mega, Indonesia
- Average high temperature in December: 30.4°C
The warmest month (with the highest average high temperature) is November (30.5°C).
The month with the lowest average high temperature is August (28.8°C).
- Average low temperature in December: 25.3°C
The months with the highest average low temperature are January, February, March, November and December (25.3°C).
The coldest month (with the lowest average low temperature) is September (24°C).
Average pressure in December
Mega, Indonesia
- Average pressure in December: 1008.1mbar
The months with the highest atmospheric pressure are August and September (1010.1mbar).
The month with the lowest atmospheric pressure is December (1008.1mbar).
Average wind speed in December
Mega, Indonesia
- Average wind speed in December: 6.6km/h
The windiest month (with the highest average wind speed) is August (10.5km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).
Average humidity in December
Mega, Indonesia
- Average humidity in December: 80%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are January and February (79%).
Average rainfall in December
Mega, Indonesia
- Average rainfall in December: 186mm
The wettest month (with the highest rainfall) is December (186mm).
The driest month (with the least rainfall) is September (102mm).
Average rainfall days in December
Mega, Indonesia
- Average rainfall days in December: 29.1 days
The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is October (22.6 days).
Average daylight in December /
Average sunshine in December
Mega, Indonesia
- Average daylight in December: 12h and 12min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in December: 7h and 54min
The month with the most sunshine is November (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 6h and 42min).
Average sunshine days in December
Mega, Indonesia
- Average sunshine days in December: 1.1 days
The month with the most sunshine days is July (6.9 days).
The month with the least sunshine days is December (1.1 days).
Average UV index in December
Mega, Indonesia
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, September and October (UV index 7).
The months with the lowest UV index are August, November and December (UV index 6).
Average cloud cover in December
Mega, Indonesia
- Average cloud cover in December: 45
The months with the most cloud cover are July and August (Cloud cover 57).
The month with the least cloud cover is November (Cloud cover 41).
Average visibility in December
Mega, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, June, October and December (10km).
The months with the lowest visibility are March, April, May, July, August, September and November (9km).





