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
In December, Cilaos's weather conditions record an average high-temperature of a still warm 25.3°C (77.5°F), demonstrating little divergence from the preceding month. During December, Cilaos's nights hold steady with an average temperature of 22.5°C (72.5°F), barely dropping from the daytime highs.Humidity
In Cilaos, the average relative humidity in December is 80%.Rainfall
In December, in Cilaos, the rain falls for 23.3 days. Throughout December, 81mm (3.19") of precipitation is accumulated. Throughout the year, there are 252.8 rainfall days, and 1027mm (40.43") of precipitation is accumulated.Daylight
December has the longest days of the year in Cilaos, with an average of 13h and 24min of daylight.On the first day of the month, sunrise is at 05:27 and sunset at 18:47. On the last day of December, in Cilaos, sunrise is at 05:39 and sunset at 19:03 +04.
Sunshine
The average sunshine in December is 10.2h.UV index
The months with the highest UV index in Cilaos are January through March, May, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Cilaos?
What is the average humidity in December in Cilaos?
How many days does it rain in December in Cilaos?
When are the longest days in Cilaos?
What is the average length of the day in December in Cilaos?
When are sunrise and sunset in December in Cilaos?
How many hours of sunshine does Cilaos have in December?
When is the highest UV index in Cilaos?
How high is the UV index in December in Cilaos?
Average temperature in December
Cilaos, Reunion
- Average high temperature in December: 25.3°C
The warmest month (with the highest average high temperature) is February (25.9°C).
The month with the lowest average high temperature is July (20.7°C).
- Average low temperature in December: 22.5°C
The months with the highest average low temperature are January, February and March (23.3°C).
The coldest month (with the lowest average low temperature) is August (17.8°C).
Average pressure in December
Cilaos, Reunion
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is August (1021.4mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).
Average wind speed in December
Cilaos, Reunion
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is July (18.2km/h).
The calmest months (with the lowest average wind speed) are November and December (12.5km/h).
Average humidity in December
Cilaos, Reunion
- Average humidity in December: 80%
The month with the highest relative humidity is March (83%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in December
Cilaos, Reunion
- Average rainfall in December: 81mm
The wettest month (with the highest rainfall) is January (193mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in December
Cilaos, Reunion
- Average rainfall days in December: 23.3 days
The month with the highest number of rainy days is March (26.2 days).
The month with the least rainy days is September (15.6 days).
Average daylight in December /
Average sunshine in December
Cilaos, Reunion
- Average daylight in December: 13h and 2min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 10h and 1min
The month with the most sunshine is October (Average sunshine: 10h and 30min).
The months with the least sunshine are May, June and July (Average sunshine: 6h and 42min).
Average sunshine days in December
Cilaos, Reunion
- Average sunshine days in December: 2.2 days
The month with the most sunshine days is October (6.6 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in December
Cilaos, Reunion
- Average UV index in December: 6
The months with the highest UV index are January, February, March, May, October, November and December (UV index 6).
The months with the lowest UV index are April, June, July, August and September (UV index 5).
Average cloud cover in December
Cilaos, Reunion
- Average cloud cover in December: 37
The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 24).
Average visibility in December
Cilaos, Reunion
- 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).
Cilaos, Reunion
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