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 sea temperature 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
The shift into December uncovers an average high-temperature of a still tropical 31°C (87.8°F), subtly different from the previous month. Throughout December, an average low-temperature of 25.8°C (78.4°F) is expected.Heat index
December's mean heat index is computed to be an extremely hot 40°C (104°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 25.3 days. Throughout December, 138mm (5.43") of precipitation is accumulated. Throughout the year, there are 208.1 rainfall days, and 911mm (35.87") of precipitation is accumulated.Sea temperature
With an average sea temperature of 30.3°C (86.5°F), December is the month with the warmest seawater.Note: Swimming or participating in water activities at temperatures above 30°C (86°F) might not be as invigorating as one might hope.
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 05:01 and sunset at 17:31. On the last day of the month, sunrise is at 05:15 and sunset at 17:46 WIB.
Sunshine
The average sunshine in December is 7.7h.UV index
The months with the highest UV index are February through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 7 suggests this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in December?
What is the average humidity in December?
How much does it rain in December?
When is the sea warmest?
What is the sea water temperature in December in Tanjungbumi?
When are the longest days?
How many hours of daylight does Tanjungbumi have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the highest UV index?
What is the UV index intensity in December?
Average temperature in December
Tanjungbumi, Indonesia
- Average high temperature in December: 31°C
The warmest month (with the highest average high temperature) is October (33.3°C).
The month with the lowest average high temperature is January (29.8°C).
- Average low temperature in December: 25.8°C
The month with the highest average low temperature is November (26.5°C).
The coldest month (with the lowest average low temperature) is July (24.3°C).
Average pressure in December
Tanjungbumi, Indonesia
- Average pressure in December: 1008.6mbar
The months with the highest atmospheric pressure are August and September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).
Average wind speed in December
Tanjungbumi, Indonesia
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is January (12.1km/h).
The calmest month (with the lowest average wind speed) is April (6.8km/h).
Average humidity in December
Tanjungbumi, Indonesia
- Average humidity in December: 78%
The months with the highest relative humidity are January and February (81%).
The month with the lowest relative humidity is September (63%).
Average rainfall in December
Tanjungbumi, Indonesia
- Average rainfall in December: 138mm
The wettest month (with the highest rainfall) is January (158mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in December
Tanjungbumi, Indonesia
- Average rainfall days in December: 25.3 days
The month with the highest number of rainy days is January (26.9 days).
The month with the least rainy days is August (5.7 days).
Average sea temperature in December
Tanjungbumi, Indonesia
- Average sea temperature in December: 30.3°C
The best month for swimming (with the highest average sea temperature) is December (30.3°C).
The coldest month (with the lowest average sea temperature) is August (28°C).
Average daylight in December /
Average sunshine in December
Tanjungbumi, 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: 7h and 4min
The months with the most sunshine are September and October (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in December
Tanjungbumi, Indonesia
- Average sunshine days in December: 4.8 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is January (3.1 days).
Average UV index in December
Tanjungbumi, Indonesia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in December
Tanjungbumi, Indonesia
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is September (Cloud cover 16).
Average visibility in December
Tanjungbumi, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March and April (9km).
