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
Weather in December
Temperature
Sima, Comoros, records a slight change with December's average high-temperatures adjusting to a still moderately hot 28.4°C (83.1°F) from November's 27.6°C (81.7°F). During the nights of December, Sima maintains an almost steady temperature with an average low of 27°C (80.6°F).Heat index
The heat index value during December is evaluated at a hot 32°C (89.6°F). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Heat index determinations are made taking into account the shade and light air movements. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In December, the average relative humidity is 75%.Rainfall
In Sima, in December, during 19.2 rainfall days, 110mm (4.33") of precipitation is typically accumulated. Throughout the year, there are 190.9 rainfall days, and 867mm (34.13") of precipitation is accumulated.Daylight
December has the longest days of the year in Sima, with an average of 12h and 48min of daylight.On the first day of the month, sunrise is at 05:32 and sunset at 18:18. On the last day of December, in Sima, Comoros, sunrise is at 05:45 and sunset at 18:33 EAT.
Sunshine
In December, the average sunshine is 10.7h.UV index
The months with the highest UV index in Sima are January through June, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 7 in December translates into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Sima in December?
What is the average humidity in December in Sima?
How many days does it rain in December in Sima?
When are the longest days in Sima?
How many hours of daylight does Sima have in December?
What time are sunrise and sunset in December in Sima?
How many hours of sunshine does Sima have in December?
What is the month with the highest UV index in Sima?
How high is the UV index in December in Sima?
Average temperature in December
Sima, Comoros
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is March (28.6°C).
The months with the lowest average high temperature are July, August and September (25.4°C).
- Average low temperature in December: 27°C
The month with the highest average low temperature is March (27.5°C).
The coldest month (with the lowest average low temperature) is August (23.9°C).
Average pressure in December
Sima, Comoros
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is February (1010mbar).
Average wind speed in December
Sima, Comoros
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is July (22.1km/h).
The calmest months (with the lowest average wind speed) are March, November and December (12km/h).
Average humidity in December
Sima, Comoros
- Average humidity in December: 75%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in December
Sima, Comoros
- Average rainfall in December: 110mm
The wettest month (with the highest rainfall) is January (176mm).
The driest months (with the least rainfall) are August and September (14mm).
Average rainfall days in December
Sima, Comoros
- Average rainfall days in December: 19.2 days
The month with the highest number of rainy days is April (23.1 days).
The month with the least rainy days is August (9.8 days).
Average daylight in December /
Average sunshine in December
Sima, Comoros
- Average daylight in December: 12h and 5min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in December: 10h and 4min
The month with the most sunshine is November (Average sunshine: 11h and 18min).
The months with the least sunshine are May and June (Average sunshine: 7h and 12min).
Average sunshine days in December
Sima, Comoros
- Average sunshine days in December: 8.8 days
The month with the most sunshine days is August (15.8 days).
The month with the least sunshine days is April (5.1 days).
Average UV index in December
Sima, Comoros
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in December
Sima, Comoros
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Sima, Comoros
- Average visibility in December: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
Sima, Comoros
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