December weather forecastRagunan, Indonesia

December

Weather in December

December, the first month of the summer in Ragunan, is still a hot month, with an average temperature fluctuating between 26°C (78.8°F) and 30.6°C (87.1°F).

Temperature

December's arrival brings an average high-temperature of a still hot 30.6°C (87.1°F), slightly deviating from November's 31.5°C (88.7°F). Ragunan, in December, logs an average low-temperature of 26°C (78.8°F), a subtle step down from daytime readings.

Heat index

December's mean heat index is calculated to be a fiery hot 37°C (98.6°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In December, the average relative humidity is 71%.

Rainfall

In Ragunan, in December, it is raining for 23.9 days, with typically 123mm (4.84") of accumulated precipitation. Throughout the year, there are 252 rainfall days, and 1150mm (45.28") of precipitation is accumulated.

Daylight

With an average of 12h and 30min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:27 and sunset at 17:55. On the last day of December, in Ragunan, Indonesia, sunrise is at 05:41 and sunset at 18:10 WIB.

Sunshine

In Ragunan, the average sunshine in December is 9.3h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Ragunan. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Ragunan. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During December, 7 as the daily maximum UV index converts into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

An average high-temperature, in December, in Ragunan, is 30.6°C (87.1°F) and the average low-temperature is 26°C (78.8°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 37°C (98.6°F).

In Ragunan, the average relative humidity in December is 71%.

In Ragunan, during December, the rain falls for 23.9 days and regularly aggregates up to 123mm (4.84") of precipitation.

The month with the longest days in Ragunan is December, with an average of 12h and 30min of daylight.

In December, the average day length in Ragunan, Indonesia, is 12h and 29min.

In December, on the first day of the month, sunrise is at 05:27 and sunset at 17:55. On the last day of the month, in Ragunan, sunrise is at 05:41 and sunset at 18:10 WIB.

The average sunshine duration in December in Ragunan, Indonesia, is 9.3h.

The months with the highest UV index are January through December, with an average maximum UV index of 7.

The months with the lowest UV index in Ragunan, Indonesia, are January through December, with an average maximum UV index of 7.

In December, the average daily maximum UV index in Ragunan, Indonesia, is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Ragunan, Indonesia

  • Average high temperature in December: 30.6°C

The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are January and February (29.8°C).

  • Average low temperature in December: 26°C

The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is August (24.7°C).

Average pressure in December
Ragunan, Indonesia

  • Average pressure in December: 1009.2mbar

The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in December
Ragunan, Indonesia

  • Average wind speed in December: 10.8km/h

The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is November (8.1km/h).

Average humidity in December
Ragunan, Indonesia

  • Average humidity in December: 71%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is October (67%).

Average rainfall in December
Ragunan, Indonesia

  • Average rainfall in December: 123mm

The wettest month (with the highest rainfall) is March (144mm).
The driest month (with the least rainfall) is August (35mm).

Average rainfall days in December
Ragunan, Indonesia

  • Average rainfall days in December: 23.9 days

The month with the highest number of rainy days is March (26.1 days).
The month with the least rainy days is August (11.6 days).

Average daylight in December /
Average sunshine in December
Ragunan, Indonesia

  • Average daylight in December: 12h and 30min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).

  • Average sunshine in December: 9h and 18min

The month with the most sunshine is March (Average sunshine: 10h and 12min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).

Average sunshine days in December
Ragunan, Indonesia

  • Average sunshine days in December: 5.7 days

The month with the most sunshine days is August (16 days).
The month with the least sunshine days is February (2.6 days).

Average UV index in December
Ragunan, Indonesia

  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

Average cloud cover in December
Ragunan, Indonesia

  • Average cloud cover in December: 43

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Ragunan, Indonesia

  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).