Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
December's advent notes a subtle adjustment in average high-temperature to a still moderately hot 27.5°C (81.5°F) from November. Throughout December, a steady low-temperature average of 22.3°C (72.1°F) is noted.Heat index
During December, the heat index is computed to be a tropical 31°C (87.8°F). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Consider that heat index readings are for situations in the shade and light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Sibuluan, the average relative humidity in December is 83%.Rainfall
In Sibuluan, during December, the rain falls for 26.1 days and regularly aggregates up to 201mm (7.91") of precipitation. In Sibuluan, during the entire year, the rain falls for 285.3 days and collects up to 1792mm (70.55") of precipitation.Daylight
The month with the shortest days is December, with an average of 12h and 0min of daylight.On the first day of the month, sunrise is at 06:14 and sunset at 18:14. On the last day of December, in Sibuluan, sunrise is at 06:28 and sunset at 18:28 WIB.
Sunshine
In Sibuluan, the average sunshine in December is 7.5h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 6 translates into these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
What is the month with the shortest days in Sibuluan?
How many hours of daylight does Sibuluan have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Sibuluan have in December?
What are the months with the highest UV index?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sibuluan, Indonesia
- Average high temperature in December: 27.5°C
The warmest month (with the highest average high temperature) is May (28.9°C).
The month with the lowest average high temperature is November (27.3°C).
- Average low temperature in December: 22.3°C
The month with the highest average low temperature is May (22.5°C).
The coldest months (with the lowest average low temperature) are July and September (21.5°C).
Average pressure in December
Sibuluan, Indonesia
- Average pressure in December: 1010.2mbar
The month with the highest atmospheric pressure is September (1011mbar).
The month with the lowest atmospheric pressure is May (1009.9mbar).
Average wind speed in December
Sibuluan, Indonesia
- Average wind speed in December: 4.8km/h
The windiest month (with the highest average wind speed) is June (5.6km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).
Average humidity in December
Sibuluan, Indonesia
- Average humidity in December: 83%
The month with the highest relative humidity is November (84%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Sibuluan, Indonesia
- Average rainfall in December: 201mm
The wettest month (with the highest rainfall) is November (259mm).
The driest month (with the least rainfall) is June (82mm).
Average rainfall days in December
Sibuluan, Indonesia
- Average rainfall days in December: 26.1 days
The months with the highest number of rainy days are March and November (27.2 days).
The month with the least rainy days is June (17.2 days).
Average daylight in December /
Average sunshine in December
Sibuluan, Indonesia
- Average daylight in December: 12h and 0min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in December: 7h and 3min
The month with the most sunshine is June (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).
Average sunshine days in December
Sibuluan, Indonesia
- Average sunshine days in December: 4.6 days
The month with the most sunshine days is June (11.4 days).
The month with the least sunshine days is November (1.8 days).
Average UV index in December
Sibuluan, Indonesia
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
Sibuluan, Indonesia
- Average cloud cover in December: 50
The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in December
Sibuluan, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, October, November and December (9km).
