December weather forecastCiderum, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Ciderum, Indonesia, with an average temperature varying between 22.1°C (71.8°F) and 29.5°C (85.1°F).

Temperature

Ciderum's average high-temperature in December is a warm 29.5°C (85.1°F), indicating a subtle variation from November. Ciderum experiences a nighttime temperature average of 22.1°C (71.8°F) during December.

Heat index

December's mean heat index is computed to be a torrid 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Ciderum, in December, during 28.2 rainfall days, 322mm (12.68") of precipitation is typically accumulated. In Ciderum, Indonesia, during the entire year, the rain falls for 305.8 days and collects up to 2855mm (112.4") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:27 and sunset at 17:56. On the last day of December, sunrise is at 05:40 and sunset at 18:10 WIB.

Sunshine

The average sunshine in December is 7.8h.

UV index

The months with the lowest UV index are January through March, May, June, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in December interprets into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Updated: Jul 22, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Ciderum, is 29.5°C (85.1°F) and the average low-temperature is 22.1°C (71.8°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in December is computed to be 36°C (96.8°F).

The average relative humidity in December is 80%.

In Ciderum, during December, the rain falls for 28.2 days and regularly aggregates up to 322mm (12.68") of precipitation.

With an average of 12h and 30min of daylight, December has the longest days of the year.

In Ciderum, the average day length in December is 12h and 31min.

On the first day of December in Ciderum, sunrise is at 05:27 and sunset at 17:56. On the last day of the month, sunrise is at 05:40 and sunset at 18:10 WIB.

In December, the average sunshine duration is 7.8h.

January through March, May, June, November and December, with an average maximum UV index of 6, are months with the lowest UV index.

In Ciderum, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

30.5°C

29.5°C

28.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.1km/h

6.6km/h

7.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

2.4

1.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ciderum, Indonesia

Average high temperature in December: 29.5°C

The warmest months (with the highest average high temperature) are August and October (31.7°C).
The month with the lowest average high temperature is January (28.4°C).

Average low temperature in December: 22.1°C

The month with the highest average low temperature is November (22.4°C).
The coldest months (with the lowest average low temperature) are July and August (19.9°C).

Average pressure in December
Ciderum, Indonesia

Average pressure in December: 1009.3mbar

The month with the highest atmospheric pressure is September (1011.3mbar).
The month with the lowest atmospheric pressure is December (1009.3mbar).

Average wind speed in December
Ciderum, Indonesia

Average wind speed in December: 6.1km/h

The windiest month (with the highest average wind speed) is January (7.2km/h).
The calmest months (with the lowest average wind speed) are May and June (4.6km/h).

Average humidity in December
Ciderum, Indonesia

Average humidity in December: 80%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is September (71%).

Average rainfall in December
Ciderum, Indonesia

Average rainfall in December: 322mm

The wettest month (with the highest rainfall) is April (394mm).
The driest month (with the least rainfall) is August (80mm).

Average rainfall days in December
Ciderum, Indonesia

Average rainfall days in December: 28.2 days

The month with the highest number of rainy days is April (28.9 days).
The month with the least rainy days is August (18.3 days).

Average daylight in December /
Average sunshine in December
Ciderum, 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 42min).

Average sunshine in December: 7h and 48min

The month with the most sunshine is September (Average sunshine: 9h and 0min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).

Average sunshine days in December
Ciderum, Indonesia

Average sunshine days in December: 2.4 days

The month with the most sunshine days is August (8.8 days).
The month with the least sunshine days is April (0.8 days).

Average UV index in December
Ciderum, Indonesia

Average UV index in December: 6

The months with the highest UV index are April, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, May, June, November and December (UV index 6).

Average cloud cover in December
Ciderum, Indonesia

Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Ciderum, Indonesia

Average visibility in December: 9km

The months with the highest visibility are January, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are February, March and April (8km).