December weather forecastSarikei, Malaysia

December

Weather in December

December, the first month of the winter in Sarikei, is still a hot month, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 23.2°C (73.8°F).

Temperature

Welcoming December, Sarikei notes an average high-temperature of a still tropical 30.7°C (87.3°F), nearly consistent with November's 31.5°C (88.7°F). During the nights in December, the temperature averages to a moderately hot 23.2°C (73.8°F).

Heat index

The average heat index in December is computed to be a blistering 42°C (107.6°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Know that the heat index computations account for shaded terrains and slight winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In December, the average relative humidity is 86%.

Rainfall

December is the month with the most rainfall. Rain falls for 22.5 days and accumulates 157mm (6.18") of precipitation.

Daylight

The month with the shortest days in Sarikei is December, with an average of 12h and 0min of daylight.
On the first day of the month, sunrise is at 6:22 am and sunset at 6:23 pm. On the last day of December, sunrise is at 6:36 am and sunset at 6:37 pm +08.

Sunshine

In December, the average sunshine is 6.4h.

UV index

The months with the lowest UV index in Sarikei, Malaysia, are January, February, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during December leads to these advisories:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

In Sarikei, in December, the average high-temperature is 30.7°C (87.3°F), and the average low-temperature is 23.2°C (73.8°F). In December, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 42°C (107.6°F).

In Sarikei, Malaysia, the average relative humidity in December is 86%.

December is the month with the most rainfall. Rain falls for 22.5 days and accumulates 157mm (6.18") of precipitation.

In December, in Sarikei, Malaysia, the rain falls for 22.5 days. Throughout December, 157mm (6.18") of precipitation is accumulated.

The month with the shortest days in Sarikei is December, with an average of 12h and 0min of daylight.

The average day length in December in Sarikei is 12h and 0min.

In December, on the first day of the month, sunrise is at 6:22 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:37 pm +08.

The average sunshine duration in December is 6.4h.

The months with the lowest UV index in Sarikei are January, February, October through December, with an average maximum UV index of 6.

In Sarikei, Malaysia, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sarikei, Malaysia

  • Average high temperature in December: 30.7°C

The warmest month (with the highest average high temperature) is August (33.1°C).
The month with the lowest average high temperature is January (29.8°C).

  • Average low temperature in December: 23.2°C

The month with the highest average low temperature is October (23.4°C).
The coldest month (with the lowest average low temperature) is February (22.7°C).

Average pressure in December
Sarikei, Malaysia

  • Average pressure in December: 1009mbar

The months with the highest atmospheric pressure are February and March (1010.1mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).

Average wind speed in December
Sarikei, Malaysia

  • Average wind speed in December: 4.1km/h

The windiest month (with the highest average wind speed) is January (4.4km/h).
The calmest month (with the lowest average wind speed) is April (3.7km/h).

Average humidity in December
Sarikei, Malaysia

  • Average humidity in December: 86%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (78%).

Average rainfall in December
Sarikei, Malaysia

  • Average rainfall in December: 157mm

The wettest month (with the highest rainfall) is December (157mm).
The driest month (with the least rainfall) is September (74mm).

Average rainfall days in December
Sarikei, Malaysia

  • Average rainfall days in December: 22.5 days

The month with the highest number of rainy days is January (25.4 days).
The month with the least rainy days is July (18.6 days).

Average daylight in December /
Average sunshine in December
Sarikei, Malaysia

  • Average daylight in December: 12h and 0min

The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).

  • Average sunshine in December: 6h and 24min

The month with the most sunshine is August (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

Average sunshine days in December
Sarikei, Malaysia

  • Average sunshine days in December: 7.4 days

The month with the most sunshine days is July (10.5 days).
The month with the least sunshine days is February (4.3 days).

Average UV index in December
Sarikei, Malaysia

  • Average UV index in December: 6

The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).

Average cloud cover in December
Sarikei, Malaysia

  • Average cloud cover in December: 61

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).

Average visibility in December
Sarikei, Malaysia

  • Average visibility in December: 7km

The months with the highest visibility are June, July, August, September and October (8km).
The months with the lowest visibility are January, February, March and April (6km).