December weather forecast
Masamba, Indonesia

December

Weather in December

The first month of the summer, December, is still a warm month in Masamba, Indonesia, with an average temperature fluctuating between 18.7°C (65.7°F) and 26.9°C (80.4°F).

Temperature

Masamba's weather, upon December's arrival, documents an average high-temperature of a still warm 26.9°C (80.4°F), nearly identical to the prior month. Masamba experiences a consistent average temperature of 18.7°C (65.7°F) throughout the nights in December.

Humidity

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

Rainfall

In December, in Masamba, the rain falls for 31 days. Throughout December, 373mm (14.69") of precipitation is accumulated. Throughout the year, there are 322.9 rainfall days, and 3347mm (131.77") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 18min of daylight.
On the first day of December, sunrise is at 05:40 and sunset at 17:55. On the last day of the month, sunrise is at 05:54 and sunset at 18:09 WITA.

Sunshine

In December, the average sunshine is 8.2h.

UV index

The months with the highest UV index are January through May, September through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What are December temperatures?
In December, in Masamba, the average high-temperature is 26.9°C (80.4°F), and the average low-temperature is 18.7°C (65.7°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in November is evaluated at 31°C (87.8°F).
What is the average humidity in December?
In December, the average relative humidity is 84%.
How many days does it rain in December?
In Masamba, in December, it is raining for 31 days, with typically 373mm (14.69") of accumulated precipitation.
When are the longest days in Masamba?
The month with the longest days is December, with an average of 12h and 18min of daylight.
What is the average length of the day in December?
The average day length in December is 12h and 16min.
What time are sunrise and sunset in December?
On the first day of December, sunrise is at 05:40 and sunset at 17:55. On the last day of the month, sunrise is at 05:54 and sunset at 18:09 WITA.
How long on average sun shines in December in Masamba?
The average sunshine duration in December is 8.2h.
What are the months with the highest UV index?
January through May, September through December, with an average maximum UV index of 6, are months with the highest UV index.
What is the UV index reading in December?
In December, the average daily maximum UV index is 6. A UV Index 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Masamba, Indonesia
  • Average high temperature in December: 26.9°C

The warmest months (with the highest average high temperature) are October and November (27.4°C).
The month with the lowest average high temperature is July (24.9°C).

  • Average low temperature in December: 18.7°C

The month with the highest average low temperature is April (19°C).
The coldest month (with the lowest average low temperature) is September (15.8°C).

Average pressure in December
Masamba, Indonesia
  • Average pressure in December: 1009.8mbar

The month with the highest atmospheric pressure is August (1011.9mbar).
The month with the lowest atmospheric pressure is December (1009.8mbar).

Average wind speed in December
Masamba, Indonesia
  • Average wind speed in December: 3.9km/h

The windiest month (with the highest average wind speed) is October (4.6km/h).
The calmest months (with the lowest average wind speed) are March and May (3.5km/h).

Average humidity in December
Masamba, Indonesia
  • Average humidity in December: 84%

The months with the highest relative humidity are April, May and June (88%).
The month with the lowest relative humidity is October (78%).

Average rainfall in December
Masamba, Indonesia
  • Average rainfall in December: 373mm

The wettest month (with the highest rainfall) is March (525mm).
The driest month (with the least rainfall) is September (83mm).

Average rainfall days in December
Masamba, Indonesia
  • Average rainfall days in December: 31 days

The months with the highest number of rainy days are March and December (31 days).
The month with the least rainy days is September (20.2 days).

Average daylight in December /
Average sunshine in December
Masamba, Indonesia
  • Average daylight in December: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).

  • Average sunshine in December: 8h and 1min

The month with the most sunshine is September (Average sunshine: 9h and 0min).
The months with the least sunshine are March and June (Average sunshine: 6h and 30min).

Average sunshine days in December
Masamba, Indonesia
  • Average sunshine days in December: 0 days

The month with the most sunshine days is August (8.8 days).
The months with the least sunshine days are March, April and December (0 days).

Average UV index in December
Masamba, Indonesia
  • Average UV index in December: 6

The months with the highest UV index are January, February, March, April, May, September, October, November and December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 5).

Average cloud cover in December
Masamba, Indonesia
  • Average cloud cover in December: 55

The month with the most cloud cover is April (Cloud cover 60).
The month with the least cloud cover is October (Cloud cover 38).

Average visibility in December
Masamba, Indonesia
  • Average visibility in December: 8km

The months with the highest visibility are January, February, October, November and December (8km).
The months with the lowest visibility are March, April, May, June, July, August and September (7km).

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