December weather forecastCeper, Indonesia

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Ceper, Indonesia, with an average temperature varying between 21.9°C (71.4°F) and 28.4°C (83.1°F).

Temperature

In December, the average high-temperature registers at a still warm 28.4°C (83.1°F), nearly identical to November's 28.7°C (83.7°F). During December, Ceper consistently records a temperature low averaging an agreeable 21.9°C (71.4°F).

Heat index

The heat index value during December is estimated at a tropical 34°C (93.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

In Ceper, the average relative humidity in December is 84%.

Rainfall

In Ceper, during December, the rain falls for 29.5 days and regularly aggregates up to 218mm (8.58") of precipitation. Throughout the year, there are 290.9 rainfall days, and 2042mm (80.39") of precipitation is accumulated.

Daylight

With an average of 12h and 36min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 05:10 and sunset at 17:42. On the last day of December, sunrise is at 05:23 and sunset at 17:57 WIB.

Sunshine

December has the least sunshine of the year, with an average of 7.2h of sunshine.

UV index

The months with the lowest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the UV index of 6 transforms into the following advice:
Shield from overexposure. Defense against sun-related harm is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Updated: Jul 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in December, in Ceper, is 28.4°C (83.1°F) and the average low-temperature is 21.9°C (71.4°F). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in December is estimated at 34°C (93.2°F).

In December, the average relative humidity is 84%.

In Ceper, during December, the rain falls for 29.5 days and regularly aggregates up to 218mm (8.58") of precipitation.

The month with the longest days is December, with an average of 12h and 36min of daylight.

The average day length in December is 12h and 34min.

On the first day of December, sunrise is at 05:10 and sunset at 17:42. On the last day of the month, sunrise is at 05:23 and sunset at 17:57 WIB.

With an average of 7.2h of sunshine, December has the least sunshine of the year in Ceper, Indonesia.

In Ceper, the average sunshine duration in December is 7.2h.

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

In Ceper, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health risk 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

28.7°C

28.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.8km/h

8.7km/h

8.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

0.5

0.9

0.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Ceper, Indonesia

Average high temperature in December: 28.4°C

The warmest months (with the highest average high temperature) are September and October (29.7°C).
The month with the lowest average high temperature is July (28.1°C).

Average low temperature in December: 21.9°C

The months with the highest average low temperature are January and November (22.3°C).
The coldest month (with the lowest average low temperature) is August (20.4°C).

Average pressure in December
Ceper, Indonesia

Average pressure in December: 1009mbar

The months with the highest atmospheric pressure are August and September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009mbar).

Average wind speed in December
Ceper, Indonesia

Average wind speed in December: 7.7km/h

The windiest months (with the highest average wind speed) are August and September (10km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).

Average humidity in December
Ceper, Indonesia

Average humidity in December: 84%

The months with the highest relative humidity are January, February, March, April and May (85%).
The month with the lowest relative humidity is September (77%).

Average rainfall in December
Ceper, Indonesia

Average rainfall in December: 218mm

The wettest month (with the highest rainfall) is March (291mm).
The driest month (with the least rainfall) is August (27mm).

Average rainfall days in December
Ceper, Indonesia

Average rainfall days in December: 29.5 days

The month with the highest number of rainy days is March (30.5 days).
The month with the least rainy days is August (12.2 days).

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

Average daylight in December: 12h and 36min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

Average sunshine in December: 7h and 12min

The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).

Average sunshine days in December
Ceper, Indonesia

Average sunshine days in December: 0.9 days

The month with the most sunshine days is August (14.4 days).
The months with the least sunshine days are January, February and March (0.3 days).

Average UV index in December
Ceper, Indonesia

Average UV index in December: 6

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

Average cloud cover in December
Ceper, Indonesia

Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Ceper, Indonesia

Average visibility in December: 8km

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