December weather forecast
Rasa, Malaysia

December, the first month of the winter in Rasa, is still a tropical month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 30.5°C (86.9°F).

Temperature

In Rasa, the lowest temperatures are generally noted in December, averaging a high of 30.5°C (86.9°F) and a low of 22.8°C (73°F).

Heat index

December's mean heat index is evaluated at an extremely hot 40°C (104°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Given the heat index, its values are aligned with shaded sites and gentle winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 83%, December is the most humid month.

Rainfall

In Rasa, during December, the rain falls for 28.6 days and regularly aggregates up to 181mm (7.13") of precipitation. In Rasa, during the entire year, the rain falls for 300.1 days and collects up to 1670mm (65.75") of precipitation.

Daylight

December has the shortest days of the year in Rasa, with an average of 11h and 54min of daylight.
On the first day of December in Rasa, sunrise is at 7:04 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:14 pm +08.

Sunshine

With an average of 7.3h of sunshine, December has the least sunshine of the year in Rasa.

UV index

February through October and December, with an average maximum UV index of 7, are months with the highest UV index in Rasa. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during December translates into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. 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. During bright days, sunglasses that offer UVA and UVB defense are recommended.