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 sea temperature 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
The arrival of December sees a recorded average high-temperature of a warm 29.7°C (85.5°F), showing little divergence from the previous month's conditions. In December, a low-temperature average of 25.7°C (78.3°F) is characteristic of Semporna, marking a minor shift from daytime temperatures.Heat index
Throughout December, the heat index is estimated at a torrid 36°C (96.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Heat index evaluations are typically in the context of light winds and shaded environments. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In December, the average relative humidity is 78%.Rainfall
In Semporna, in December, during 25.6 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 278.4 rainfall days, and 1091mm (42.95") of precipitation is accumulated.Sea temperature
In Semporna, the average seawater temperature in December is 28.8°C (83.8°F).Note: Surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as excellent and extremely agreeable for enduring enjoyment in water activities.
Daylight
With an average of 11h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 5:58 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 6:04 pm +08.
Sunshine
With an average of 7.3h of sunshine, December has the least sunshine of the year.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 7 in December interprets into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take note! The UV strength of the Sun elevates when reflected off water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in December?
What is the average humidity in December?
How much does it rain in December?
How warm is the water in December?
What is the month with the shortest days in Semporna?
How many hours of daylight does Semporna have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Semporna have in December?
When is the highest UV index?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Semporna, Malaysia
- Average high temperature in December: 29.7°C
The warmest month (with the highest average high temperature) is May (30.7°C).
The month with the lowest average high temperature is January (29.3°C).
- Average low temperature in December: 25.7°C
The months with the highest average low temperature are May and November (25.9°C).
The coldest month (with the lowest average low temperature) is February (24.9°C).
Average pressure in December
Semporna, Malaysia
- Average pressure in December: 1008.7mbar
The month with the highest atmospheric pressure is February (1010.3mbar).
The months with the lowest atmospheric pressure are November and December (1008.7mbar).
Average wind speed in December
Semporna, Malaysia
- Average wind speed in December: 9.2km/h
The windiest month (with the highest average wind speed) is February (12km/h).
The calmest month (with the lowest average wind speed) is May (6.7km/h).
Average humidity in December
Semporna, Malaysia
- Average humidity in December: 78%
The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are September and October (76%).
Average rainfall in December
Semporna, Malaysia
- Average rainfall in December: 120mm
The wettest month (with the highest rainfall) is May (123mm).
The driest months (with the least rainfall) are February and September (57mm).
Average rainfall days in December
Semporna, Malaysia
- Average rainfall days in December: 25.6 days
The month with the highest number of rainy days is December (25.6 days).
The month with the least rainy days is February (18.3 days).
Average sea temperature in December
Semporna, Malaysia
- Average sea temperature in December: 28.8°C
The best month for swimming (with the highest average sea temperature) is June (29.9°C).
The coldest month (with the lowest average sea temperature) is January (28.1°C).
Average daylight in December /
Average sunshine in December
Semporna, Malaysia
- Average daylight in December: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).
- Average sunshine in December: 7h and 2min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 7h and 18min).
Average sunshine days in December
Semporna, Malaysia
- Average sunshine days in December: 2.6 days
The month with the most sunshine days is March (8.8 days).
The month with the least sunshine days is December (2.6 days).
Average UV index in December
Semporna, Malaysia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in December
Semporna, Malaysia
- Average cloud cover in December: 40
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in December
Semporna, Malaysia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
