December weather forecastBulak, Indonesia
December
Weather in December
December, the first month of the summer in Bulak, is still a hot month, with temperature in the range of an average high of 30.5°C (86.9°F) and an average low of 25.7°C (78.3°F).Temperature
Bulak, Indonesia, experiences an average high-temperature of a still tropical 30.5°C (86.9°F) in December, subtly different from November's 31.3°C (88.3°F). Throughout December, Bulak's nights experience a slight temperature dip to a warm 25.7°C (78.3°F).Heat index
The average heat index in December is computed to be a torrid 37°C (98.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Bulak, the average relative humidity in December is 72%.Rainfall
In Bulak, Indonesia, during December, the rain falls for 23.9 days and regularly aggregates up to 104mm (4.09") of precipitation. Throughout the year, in Bulak, there are 257.1 rainfall days, and 991mm (39.02") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 12h and 30min of daylight.On the first day of the month, sunrise is at 05:28 and sunset at 17:56. On the last day of December, in Bulak, sunrise is at 05:41 and sunset at 18:10 WIB.
Sunshine
The average sunshine in December in Bulak is 9.4h.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 in Bulak, Indonesia. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in December converts into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bulak, Indonesia
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is February (29.6°C).
- Average low temperature in December: 25.7°C
The month with the highest average low temperature is November (25.8°C).
The coldest month (with the lowest average low temperature) is July (24°C).
Average pressure in December
Bulak, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011.1mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Bulak, Indonesia
- Average wind speed in December: 10.1km/h
The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest month (with the lowest average wind speed) is November (7.5km/h).
Average humidity in December
Bulak, Indonesia
- Average humidity in December: 72%
The months with the highest relative humidity are February and March (76%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Bulak, Indonesia
- Average rainfall in December: 104mm
The wettest month (with the highest rainfall) is March (119mm).
The driest month (with the least rainfall) is August (36mm).
Average rainfall days in December
Bulak, Indonesia
- Average rainfall days in December: 23.9 days
The month with the highest number of rainy days is March (26.4 days).
The month with the least rainy days is August (12.5 days).
Average daylight in December /
Average sunshine in December
Bulak, Indonesia
- Average daylight in December: 12h and 30min
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 48min).
- Average sunshine in December: 9h and 24min
The month with the most sunshine is March (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in December
Bulak, Indonesia
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is August (15.2 days).
The month with the least sunshine days is February (2.6 days).
Average UV index in December
Bulak, 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
Bulak, Indonesia
- Average cloud cover in December: 42
The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Bulak, Indonesia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
