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 stands out as Slim River's coldest month, with temperatures ranging between an average high of 29.8°C (85.6°F) and a low of 21.5°C (70.7°F).Heat index
For December, the heat index is appraised at a very hot 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. 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 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
November and December, with an average relative humidity of 85%, are the most humid months.Rainfall
In December, in Slim River, the rain falls for 25.4 days. Throughout December, 118mm (4.65") of precipitation is accumulated. In Slim River, Malaysia, during the entire year, the rain falls for 310.8 days and collects up to 1623mm (63.9") of precipitation.Daylight
December has the shortest days of the year, with an average of 11h and 54min of daylight.On the first day of December, sunrise is at 7:05 am and sunset at 7:01 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm +08.
Sunshine
November and December, with an average of 7h of sunshine, are months with the least sunshine in Slim River.UV index
In Slim River, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Slim River?
How hot is December in Slim River?
What is the most humid month in Slim River?
What is the average humidity in December in Slim River?
How much does it rain in Slim River in December?
What is the month with the shortest days in Slim River?
What is the average length of the day in December in Slim River?
When are sunrise and sunset in December in Slim River?
What is the month with the least sunshine in Slim River?
How long on average sun shines in December in Slim River?
What is the UV index intensity in December in Slim River?
Average temperature in December
Slim River, Malaysia
- Average high temperature in December: 29.8°C
The warmest months (with the highest average high temperature) are February, March, May and June (31.8°C).
The month with the lowest average high temperature is December (29.8°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is May (22.2°C).
The coldest months (with the lowest average low temperature) are January and February (20.8°C).
Average pressure in December
Slim River, Malaysia
- Average pressure in December: 1009.8mbar
The months with the highest atmospheric pressure are January and February (1010.6mbar).
The month with the lowest atmospheric pressure is May (1008.8mbar).
Average wind speed in December
Slim River, Malaysia
- Average wind speed in December: 4.1km/h
The windiest months (with the highest average wind speed) are January and February (4.4km/h).
The calmest months (with the lowest average wind speed) are April and November (3.7km/h).
Average humidity in December
Slim River, Malaysia
- Average humidity in December: 85%
The months with the highest relative humidity are November and December (85%).
The month with the lowest relative humidity is August (78%).
Average rainfall in December
Slim River, Malaysia
- Average rainfall in December: 118mm
The wettest month (with the highest rainfall) is October (185mm).
The driest month (with the least rainfall) is February (71mm).
Average rainfall days in December
Slim River, Malaysia
- Average rainfall days in December: 25.4 days
The month with the highest number of rainy days is May (28 days).
The month with the least rainy days is February (21.1 days).
Average daylight in December /
Average sunshine in December
Slim River, 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: 7h and 0min
The months with the most sunshine are June and September (Average sunshine: 8h and 36min).
The months with the least sunshine are November and December (Average sunshine: 7h and 0min).
Average sunshine days in December
Slim River, Malaysia
- Average sunshine days in December: 4.3 days
The month with the most sunshine days is February (5.1 days).
The month with the least sunshine days is September (1.6 days).
Average UV index in December
Slim River, Malaysia
- Average UV index in December: 6
The months with the highest UV index are March, April, May, June, July and September (UV index 7).
The month with the lowest UV index is November (UV index 5).
Average cloud cover in December
Slim River, Malaysia
- Average cloud cover in December: 55
The months with the most cloud cover are November and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Slim River, Malaysia
- Average visibility in December: 7km
The months with the highest visibility are June, July, August and September (9km).
The months with the lowest visibility are January, April, November and December (7km).
