Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December is the warmest month of the year, registering average temperatures as high as 29.5°C (85.1°F) and as low as 27.3°C (81.1°F).Heat index
December's heat index is calculated to be a fiery hot 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
November and December, with an average relative humidity of 74%, are the least humid months in Batu Merah, Indonesia.Rainfall
In Batu Merah, in December, during 27.1 rainfall days, 131mm (5.16") of precipitation is typically accumulated. 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 the month, sunrise is at 06:06 and sunset at 18:25. On the last day of December, in Batu Merah, sunrise is at 06:20 and sunset at 18:40 WIT.
Sunshine
In Batu Merah, the average sunshine in December 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 in Batu Merah. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 7 suggests this advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Batu Merah?
Is it hot in Batu Merah during December?
What are the least humid months in Batu Merah?
What is the average humidity in December in Batu Merah?
How many days does it rain in December in Batu Merah?
When are the longest days in Batu Merah?
How many hours of daylight does Batu Merah have in December?
When are sunrise and sunset in December in Batu Merah?
How many hours of sunshine does Batu Merah have in December?
When is the highest UV index in Batu Merah?
What is the UV index intensity in December in Batu Merah?
Average temperature in December
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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
Batu Merah, Indonesia
- Average daylight in December: 12h and 2min
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 4min
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
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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
Batu Merah, 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).
