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
As Slawi steps into December, the average high-temperature is measured at a still tropical 30°C (86°F), displaying minor differences from November's 30.5°C (86.9°F). December nights are marked by an average temperature drop to a warm 23.3°C (73.9°F).Heat index
In December, the average heat index is evaluated at a fiery hot 38°C (100.4°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
The average relative humidity in December is 80%.Rainfall
December is the month with the most rainfall. Rain falls for 27.1 days and accumulates 312mm (12.28") of precipitation.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 05:17 and sunset at 17:47. On the last day of December, sunrise is at 05:30 and sunset at 18:02 WIB.
Sunshine
December has the least sunshine of the year, with an average of 7.5h of sunshine.UV index
The months with the highest UV index are February through June, September, October and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 7 during December leads to these advisories:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Slawi in December?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the highest UV index in Slawi?
What is the UV index intensity in December?
Average temperature in December
Slawi, Indonesia
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is October (31°C).
The month with the lowest average high temperature is July (28.9°C).
- Average low temperature in December: 23.3°C
The months with the highest average low temperature are January and December (23.3°C).
The coldest month (with the lowest average low temperature) is August (20.8°C).
Average pressure in December
Slawi, Indonesia
- Average pressure in December: 1009.2mbar
The month with the highest atmospheric pressure is September (1011.7mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).
Average wind speed in December
Slawi, Indonesia
- Average wind speed in December: 5.8km/h
The windiest month (with the highest average wind speed) is September (9.1km/h).
The calmest month (with the lowest average wind speed) is April (4.6km/h).
Average humidity in December
Slawi, Indonesia
- Average humidity in December: 80%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in December
Slawi, Indonesia
- Average rainfall in December: 312mm
The wettest month (with the highest rainfall) is December (312mm).
The driest month (with the least rainfall) is August (20mm).
Average rainfall days in December
Slawi, Indonesia
- Average rainfall days in December: 27.1 days
The month with the highest number of rainy days is January (28.9 days).
The month with the least rainy days is August (10.3 days).
Average daylight in December /
Average sunshine in December
Slawi, 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 30min).
Average sunshine days in December
Slawi, Indonesia
- Average sunshine days in December: 1.7 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (0.8 days).
Average UV index in December
Slawi, Indonesia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, September, October and December (UV index 7).
The months with the lowest UV index are January, July, August and November (UV index 6).
Average cloud cover in December
Slawi, Indonesia
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Slawi, Indonesia
- Average visibility in December: 9km
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is February (8km).
