December weather forecastIloni, Mayotte
December
Weather in December
December in Iloni, compared to the preceding month, signifies amplified temperature variations, averaging from 27.7°C (81.9°F) to 28.4°C (83.1°F). Rainfall further increases to 125mm (4.92") along with a higher percentage of cloud coverage, delivering a decidedly damp end to the year. Despite these fluctuations, usual daylight hours, atmospheric pressure, wind speed, and visibility conditions are sustained with minimal alterations.Temperature
Iloni commences December with an average high-temperature of a still moderately hot 28.4°C (83.1°F), maintaining a close resemblance to the previous month. Iloni's nocturnal average in December closely mirrors its daytime temperatures, settling at a still warm 27.7°C (81.9°F).Heat index
For December, the heat index is appraised at a hot 32°C (89.6°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely vital to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In December, the average relative humidity is 73%.Rainfall
In December, the rain falls for 23.4 days. Throughout December, 125mm (4.92") of precipitation is accumulated. In Iloni, during the entire year, the rain falls for 182.4 days and collects up to 862mm (33.94") of precipitation.Daylight
With an average of 12h and 54min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:23 and sunset at 18:13. On the last day of December, sunrise is at 05:36 and sunset at 18:28 EAT.
Sunshine
With an average of 10.7h of sunshine, December has the most sunshine of the year in Iloni.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 in Iloni, Mayotte, are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 7 translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. 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
Average temperature in December
Iloni, Mayotte
- Average high temperature in December: 28.4°C
The warmest months (with the highest average high temperature) are March and April (28.9°C).
The months with the lowest average high temperature are August and September (25.4°C).
- Average low temperature in December: 27.7°C
The months with the highest average low temperature are February and March (28°C).
The coldest month (with the lowest average low temperature) is August (24.6°C).
Average pressure in December
Iloni, Mayotte
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is August (1016.8mbar).
The month with the lowest atmospheric pressure is February (1010mbar).
Average wind speed in December
Iloni, Mayotte
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is July (21km/h).
The calmest month (with the lowest average wind speed) is September (10.7km/h).
Average humidity in December
Iloni, Mayotte
- Average humidity in December: 73%
The months with the highest relative humidity are January, October and November (76%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Iloni, Mayotte
- Average rainfall in December: 125mm
The wettest month (with the highest rainfall) is January (230mm).
The driest month (with the least rainfall) is September (4mm).
Average rainfall days in December
Iloni, Mayotte
- Average rainfall days in December: 23.4 days
The month with the highest number of rainy days is January (25.5 days).
The month with the least rainy days is August (5.3 days).
Average daylight in December /
Average sunshine in December
Iloni, Mayotte
- Average daylight in December: 12h and 54min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in December: 10h and 42min
The month with the most sunshine is December (Average sunshine: 10h and 42min).
The month with the least sunshine is April (Average sunshine: 6h and 54min).
Average sunshine days in December
Iloni, Mayotte
- Average sunshine days in December: 5.7 days
The month with the most sunshine days is August (22.6 days).
The month with the least sunshine days is January (3.7 days).
Average UV index in December
Iloni, Mayotte
- 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
Iloni, Mayotte
- Average cloud cover in December: 34
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in December
Iloni, Mayotte
- 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).
