December weather forecastSedayu, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Sedayu, Indonesia, with an average temperature ranging between min 24.2°C (75.6°F) and max 28.9°C (84°F).

Temperature

December records an average high-temperature of a still warm 28.9°C (84°F), indicating a minor variation from the preceding month. Nighttime temperature reflects an average dip to a still moderately hot 24.2°C (75.6°F) in December, subtly cooler than its daytime highs.

Heat index

The heat index for December is calculated to be a hot 34°C (93.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in December is 80%.

Rainfall

In Sedayu, during December, the rain falls for 23.2 days and regularly aggregates up to 94mm (3.7") of precipitation. Throughout the year, there are 246 rainfall days, and 907mm (35.71") 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 December, sunrise is at 05:11 and sunset at 17:44. On the last day of the month, sunrise is at 05:24 and sunset at 17:59 WIB.

Sunshine

The month with the least sunshine is December, with an average of 7.4h of sunshine.

UV index

The months with the highest UV index are February through May, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during December, leads to the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Updated: Jul 24, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Sedayu, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 24.2°C (75.6°F). In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 34°C (93.2°F).

In December, the average relative humidity is 80%.

In December, in Sedayu, the rain falls for 23.2 days. Throughout December, 94mm (3.7") of precipitation is accumulated.

With an average of 12h and 36min of daylight, December has the longest days of the year.

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

In December, on the first day of the month, sunrise is at 05:11 and sunset at 17:44. On the last day of the month, sunrise is at 05:24 and sunset at 17:59 WIB.

December has the least sunshine of the year, with an average of 7.4h of sunshine.

In Sedayu, the average sunshine duration in December is 7.4h.

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

The average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health risk from 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

29.1°C

28.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.9km/h

11km/h

12.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

3.4

5.3

4.9

Average UV index

Average cloud cover

46%

49%

Average visibility

10km

Average temperature in December
Sedayu, Indonesia

Average high temperature in December: 28.9°C

The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is July (27.8°C).

Average low temperature in December: 24.2°C

The months with the highest average low temperature are January and November (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.9°C).

Average pressure in December
Sedayu, Indonesia

Average pressure in December: 1009.1mbar

The months with the highest atmospheric pressure are August and September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).

Average wind speed in December
Sedayu, Indonesia

Average wind speed in December: 9.7km/h

The windiest month (with the highest average wind speed) is August (14.5km/h).
The calmest month (with the lowest average wind speed) is March (8.4km/h).

Average humidity in December
Sedayu, Indonesia

Average humidity in December: 80%

The months with the highest relative humidity are May and June (82%).
The months with the lowest relative humidity are September and October (79%).

Average rainfall in December
Sedayu, Indonesia

Average rainfall in December: 94mm

The wettest month (with the highest rainfall) is January (126mm).
The driest month (with the least rainfall) is August (14mm).

Average rainfall days in December
Sedayu, Indonesia

Average rainfall days in December: 23.2 days

The months with the highest number of rainy days are January, March and November (24.7 days).
The month with the least rainy days is August (11.4 days).

Average daylight in December /
Average sunshine in December
Sedayu, 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 24min

The month with the most sunshine is February (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in December
Sedayu, Indonesia

Average sunshine days in December: 5.3 days

The month with the most sunshine days is August (11.6 days).
The month with the least sunshine days is November (3.4 days).

Average UV index in December
Sedayu, Indonesia

Average UV index in December: 7

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

Average cloud cover in December
Sedayu, Indonesia

Average cloud cover in December: 49

The months with the most cloud cover are January and December (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 35).

Average visibility in December
Sedayu, 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).