December weather forecast
Tumapel, Indonesia

December

Weather in December

The first month of the summer, December, is also a hot month in Tumapel, Indonesia, with an average temperature ranging between max 31.2°C (88.2°F) and min 26.3°C (79.3°F).

Temperature

December's onset records a minor alteration in the average high-temperature to a still tropical 31.2°C (88.2°F) from November's 32.4°C (90.3°F). Nighttime temperatures hover around an average low of 26.3°C (79.3°F) in December, a slight descent from daytime highs.

Heat index

December's mean heat index is evaluated at a sweltering 39°C (102.2°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in December is 74%.

Rainfall

In Tumapel, during December, the rain falls for 24.7 days and regularly aggregates up to 102mm (4.02") of precipitation. Throughout the year, there are 187.8 rainfall days, and 839mm (33.03") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 05:03 and sunset at 17:34. On the last day of the month, sunrise is at 05:17 and sunset at 17:49 WIB.

Sunshine

In December, the average sunshine is 8.6h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

Is it hot in Tumapel during December?
In Tumapel, 31.2°C (88.2°F) is the average high-temperature and 26.3°C (79.3°F) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in December is evaluated at 39°C (102.2°F).
What is the average humidity in December in Tumapel?
In Tumapel, the average relative humidity in December is 74%.
How much does it rain in December?
In Tumapel, in December, it is raining for 24.7 days, with typically 102mm (4.02") of accumulated precipitation.
When are the longest days?
The month with the longest days is December, with an average of 12h and 30min of daylight.
What is the average length of the day in December?
In Tumapel, the average day length in December is 12h and 32min.
When are sunrise and sunset in December?
On the first day of December, sunrise is at 05:03 and sunset at 17:34. On the last day of the month, sunrise is at 05:17 and sunset at 17:49 WIB.
How long on average sun shines in December?
In December, the average sunshine duration is 8.6h.
What are the months with the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What is the month with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
How high is the UV index in December?
In Tumapel, the average daily maximum UV index in December is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Tumapel, Indonesia
  • Average high temperature in December: 31.2°C

The warmest month (with the highest average high temperature) is October (32.9°C).
The months with the lowest average high temperature are January, February and July (30.1°C).

  • Average low temperature in December: 26.3°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 (24.2°C).

Average pressure in December
Tumapel, Indonesia
  • Average pressure in December: 1008.7mbar

The month with the highest atmospheric pressure is August (1011.4mbar).
The month with the lowest atmospheric pressure is December (1008.7mbar).

Average wind speed in December
Tumapel, Indonesia
  • Average wind speed in December: 7km/h

The windiest month (with the highest average wind speed) is August (9.9km/h).
The calmest month (with the lowest average wind speed) is April (6.3km/h).

Average humidity in December
Tumapel, Indonesia
  • Average humidity in December: 74%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is October (63%).

Average rainfall in December
Tumapel, Indonesia
  • Average rainfall in December: 102mm

The wettest month (with the highest rainfall) is February (179mm).
The driest month (with the least rainfall) is August (4mm).

Average rainfall days in December
Tumapel, Indonesia
  • Average rainfall days in December: 24.7 days

The month with the highest number of rainy days is January (27 days).
The month with the least rainy days is August (3.7 days).

Average daylight in December /
Average sunshine in December
Tumapel, Indonesia
  • Average daylight in December: 12h and 3min

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: 8h and 4min

The months with the most sunshine are August, September and October (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 8h and 6min).

Average sunshine days in December
Tumapel, Indonesia
  • Average sunshine days in December: 5.9 days

The month with the most sunshine days is August (26 days).
The month with the least sunshine days is February (2.8 days).

Average UV index in December
Tumapel, 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
Tumapel, Indonesia
  • Average cloud cover in December: 38

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in December
Tumapel, Indonesia
  • Average visibility in December: 10km

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

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