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
Weather in December
Temperature
December's climate shows a minor adjustment in average high-temperatures to a still hot 30.5°C (86.9°F) from November's 31.3°C (88.3°F). An average low-temperature of 22.4°C (72.3°F) is noted in Batu Niah during the month of December.Heat index
December's average heat index is estimated at a scorching 42°C (107.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Realize that the values for the heat index are set for shaded places and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In Batu Niah, the average relative humidity in December is 88%.Rainfall
December is the month with the most rainfall. Rain falls for 30.1 days and accumulates 254mm (10") of precipitation.Daylight
With an average of 11h and 54min of daylight, December has the shortest days of the year in Batu Niah.On the first day of the month, sunrise is at 6:16 am and sunset at 6:11 pm. On the last day of December, in Batu Niah, sunrise is at 6:30 am and sunset at 6:25 pm +08.
Sunshine
The average sunshine in December is 6.4h.UV index
The months with the lowest UV index in Batu Niah are January through March, June, August, October 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 rays for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
How hot is it in Batu Niah in December?
What is the average humidity in December in Batu Niah?
What is the rainiest month in Batu Niah?
How much does it rain in Batu Niah in December?
What is the month with the shortest days in Batu Niah?
How many hours of daylight does Batu Niah have in December?
When is the sunrise / sunset in December in Batu Niah?
How long on average sun shines in December in Batu Niah?
What are the months with the lowest UV index in Batu Niah?
How high is the UV index in December in Batu Niah?
Average temperature in December
Batu Niah, Malaysia
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are May, July, August and September (32.3°C).
The month with the lowest average high temperature is January (29.7°C).
- Average low temperature in December: 22.4°C
The month with the highest average low temperature is May (22.8°C).
The coldest months (with the lowest average low temperature) are February and March (22°C).
Average pressure in December
Batu Niah, Malaysia
- Average pressure in December: 1009.2mbar
The months with the highest atmospheric pressure are February and March (1010.3mbar).
The months with the lowest atmospheric pressure are November and December (1009.2mbar).
Average wind speed in December
Batu Niah, Malaysia
- Average wind speed in December: 3.9km/h
The windiest months (with the highest average wind speed) are July and September (4.2km/h).
The calmest month (with the lowest average wind speed) is November (3.8km/h).
Average humidity in December
Batu Niah, Malaysia
- Average humidity in December: 88%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are July and August (81%).
Average rainfall in December
Batu Niah, Malaysia
- Average rainfall in December: 254mm
The wettest month (with the highest rainfall) is December (254mm).
The driest months (with the least rainfall) are July and September (106mm).
Average rainfall days in December
Batu Niah, Malaysia
- Average rainfall days in December: 30.1 days
The month with the highest number of rainy days is December (30.1 days).
The month with the least rainy days is June (23.3 days).
Average daylight in December /
Average sunshine in December
Batu Niah, Malaysia
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is September (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in December
Batu Niah, Malaysia
- Average sunshine days in December: 0.5 days
The month with the most sunshine days is July (6 days).
The month with the least sunshine days is December (0.5 days).
Average UV index in December
Batu Niah, Malaysia
- Average UV index in December: 6
The months with the highest UV index are April, May, July and September (UV index 7).
The months with the lowest UV index are January, February, March, June, August, October, November and December (UV index 6).
Average cloud cover in December
Batu Niah, Malaysia
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 45).
Average visibility in December
Batu Niah, Malaysia
- Average visibility in December: 6km
The months with the highest visibility are August and September (8km).
The months with the lowest visibility are January, February, March, April, November and December (6km).
Batu Niah, Malaysia
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