December weather forecastRasa, Malaysia
December
Weather in December
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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rasa, Malaysia
- Average high temperature in December: 30.5°C
The warmest month (with the highest average high temperature) is May (32.5°C).
The month with the lowest average high temperature is December (30.5°C).
- Average low temperature in December: 22.8°C
The month with the highest average low temperature is May (23.7°C).
The coldest months (with the lowest average low temperature) are January and February (22.3°C).
Average pressure in December
Rasa, Malaysia
- Average pressure in December: 1009.7mbar
The month with the highest atmospheric pressure is January (1010.5mbar).
The month with the lowest atmospheric pressure is May (1008.8mbar).
Average wind speed in December
Rasa, Malaysia
- Average wind speed in December: 4km/h
The windiest months (with the highest average wind speed) are July and August (4.5km/h).
The calmest month (with the lowest average wind speed) is November (3.8km/h).
Average humidity in December
Rasa, Malaysia
- Average humidity in December: 83%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are August and September (74%).
Average rainfall in December
Rasa, Malaysia
- Average rainfall in December: 181mm
The wettest month (with the highest rainfall) is November (234mm).
The driest month (with the least rainfall) is September (82mm).
Average rainfall days in December
Rasa, Malaysia
- Average rainfall days in December: 28.6 days
The months with the highest number of rainy days are November and December (28.6 days).
The month with the least rainy days is June (20.1 days).
Average daylight in December /
Average sunshine in December
Rasa, Malaysia
- Average daylight in December: 11h and 54min
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 18min
The months with the most sunshine are June and July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in December
Rasa, Malaysia
- Average sunshine days in December: 1.6 days
The month with the most sunshine days is July (8.7 days).
The month with the least sunshine days is November (0.6 days).
Average UV index in December
Rasa, Malaysia
- Average UV index in December: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and December (UV index 7).
The months with the lowest UV index are January and November (UV index 6).
Average cloud cover in December
Rasa, Malaysia
- Average cloud cover in December: 50
The month with the most cloud cover is November (Cloud cover 51).
The months with the least cloud cover are June and July (Cloud cover 33).
Average visibility in December
Rasa, Malaysia
- Average visibility in December: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
