December weather forecastSemoyo, Indonesia

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Semoyo, Indonesia, with an average temperature varying between 23.2°C (73.8°F) and 28.7°C (83.7°F).

Temperature

Semoyo ushers in December with an average high-temperature of a still moderately hot 28.7°C (83.7°F), showing a close resemblance to the previous month. Throughout December, a steady low-temperature average of 23.2°C (73.8°F) is noted.

Heat index

In December, the average heat index is calculated to be a tropical 34°C (93.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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 82%.

Rainfall

In December, the rain falls for 29.4 days. Throughout December, 189mm (7.44") of precipitation is accumulated. Throughout the year, there are 293.9 rainfall days, and 1749mm (68.86") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of the month, sunrise is at 05:10 and sunset at 17:43. On the last day of December, sunrise is at 05:23 and sunset at 17:58 WIB.

Sunshine

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

UV index

January, April through September, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in December interprets into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

December temperatures vary between a high-temperature of 28.7°C (83.7°F) and a low-temperature of 23.2°C (73.8°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in December is calculated to be 34°C (93.2°F).

The average relative humidity in December is 82%.

In Semoyo, in December, it is raining for 29.4 days, with typically 189mm (7.44") of accumulated precipitation.

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

In Semoyo, the average day length in December is 12h and 34min.

In December, on the first day of the month, sunrise is at 05:10 and sunset at 17:43. On the last day of the month, sunrise is at 05:23 and sunset at 17:58 WIB.

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

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

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

The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
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
Semoyo, Indonesia

  • Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is October (29.3°C).
The month with the lowest average high temperature is July (27.7°C).

  • Average low temperature in December: 23.2°C

The months with the highest average low temperature are January and November (23.3°C).
The coldest month (with the lowest average low temperature) is August (21°C).

Average pressure in December
Semoyo, Indonesia

  • Average pressure in December: 1009mbar

The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009mbar).

Average wind speed in December
Semoyo, Indonesia

  • Average wind speed in December: 8.5km/h

The windiest month (with the highest average wind speed) is August (11.6km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).

Average humidity in December
Semoyo, Indonesia

  • Average humidity in December: 82%

The months with the highest relative humidity are May and June (84%).
The months with the lowest relative humidity are September and October (80%).

Average rainfall in December
Semoyo, Indonesia

  • Average rainfall in December: 189mm

The wettest month (with the highest rainfall) is March (236mm).
The driest month (with the least rainfall) is August (29mm).

Average rainfall days in December
Semoyo, Indonesia

  • Average rainfall days in December: 29.4 days

The month with the highest number of rainy days is January (30.3 days).
The month with the least rainy days is August (13.8 days).

Average daylight in December /
Average sunshine in December
Semoyo, 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 0min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

Average sunshine days in December
Semoyo, Indonesia

  • Average sunshine days in December: 0.8 days

The month with the most sunshine days is August (11.1 days).
The months with the least sunshine days are January and February (0.4 days).

Average UV index in December
Semoyo, Indonesia

  • Average UV index in December: 6

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

Average cloud cover in December
Semoyo, Indonesia

  • Average cloud cover in December: 51

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July and August (Cloud cover 38).

Average visibility in December
Semoyo, Indonesia

  • Average visibility in December: 9km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).