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
Weather in December
Temperature
December welcomes an average high-temperature of a still warm 25.6°C (78.1°F), not much different from the preceding month. Saint-Pierre, during December nights, records a temperature marginally cooler than the daytime average, at a still moderately hot 23.5°C (74.3°F).Humidity
In December, the average relative humidity is 79%.Rainfall
In Saint-Pierre, in December, it is raining for 21.2 days, with typically 66mm (2.6") of accumulated precipitation. Throughout the year, there are 207.9 rainfall days, and 756mm (29.76") of precipitation is accumulated.Sea temperature
In December, the average sea temperature is 26.7°C (80.1°F).Note: For swimming, diving, and similar activities, the water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered delightful, allowing for extended periods of enjoyment without discomfort.
Daylight
December has the longest days of the year in Saint-Pierre, with an average of 13h and 24min of daylight.On the first day of December in Saint-Pierre, sunrise is at 05:27 and sunset at 18:47. On the last day of the month, sunrise is at 05:38 and sunset at 19:03 +04.
Sunshine
In December, the average sunshine is 10.6h.UV index
January, March through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 6 suggests this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Saint-Pierre?
What is the average humidity in December in Saint-Pierre?
How many days does it rain in December in Saint-Pierre?
What is the water temperature in December in Saint-Pierre?
When are the longest days in Saint-Pierre?
What is the average length of the day in December in Saint-Pierre?
When are sunrise and sunset in December in Saint-Pierre?
How many hours of sunshine does Saint-Pierre have in December?
What are the months with the lowest UV index in Saint-Pierre?
What is the UV index reading in December in Saint-Pierre?
Average temperature in December
Saint-Pierre, Reunion
- Average high temperature in December: 25.6°C
The warmest months (with the highest average high temperature) are January, February and March (26.3°C).
The month with the lowest average high temperature is July (21.3°C).
- Average low temperature in December: 23.5°C
The months with the highest average low temperature are January and February (24.3°C).
The coldest month (with the lowest average low temperature) is July (18.8°C).
Average pressure in December
Saint-Pierre, Reunion
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is August (1021.5mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).
Average wind speed in December
Saint-Pierre, Reunion
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is July (19.8km/h).
The calmest month (with the lowest average wind speed) is November (13.4km/h).
Average humidity in December
Saint-Pierre, Reunion
- Average humidity in December: 79%
The months with the highest relative humidity are January, February, March and April (81%).
The months with the lowest relative humidity are July, August and September (77%).
Average rainfall in December
Saint-Pierre, Reunion
- Average rainfall in December: 66mm
The wettest month (with the highest rainfall) is January (162mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in December
Saint-Pierre, Reunion
- Average rainfall days in December: 21.2 days
The month with the highest number of rainy days is March (24.9 days).
The month with the least rainy days is September (9.5 days).
Average sea temperature in December
Saint-Pierre, Reunion
- Average sea temperature in December: 26.7°C
The best month for swimming (with the highest average sea temperature) is March (28.4°C).
The coldest month (with the lowest average sea temperature) is September (23.7°C).
Average daylight in December /
Average sunshine in December
Saint-Pierre, 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 4min
The month with the most sunshine is October (Average sunshine: 10h and 54min).
The month with the least sunshine is May (Average sunshine: 6h and 54min).
Average sunshine days in December
Saint-Pierre, Reunion
- Average sunshine days in December: 3.5 days
The month with the most sunshine days is August (13.5 days).
The month with the least sunshine days is February (1.7 days).
Average UV index in December
Saint-Pierre, Reunion
- Average UV index in December: 6
The month with the highest UV index is February (UV index 7).
The months with the lowest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
Saint-Pierre, Reunion
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 21).
Average visibility in December
Saint-Pierre, Reunion
- 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).
Saint-Pierre, Reunion
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