December weather forecast
Saint-Gilles, Reunion

Culminating the weather calendar in Saint-Gilles, Reunion, December brings in the full force of the wet, warm season. The temperature range settles at a high of 27°C (80.6°F) and a low of 20°C (68°F), with the rainfall surging notably to 143mm (5.63"). Following suit, the sea temperatures also increase making December ideal for water activities. Extended daylight hours provide extra time for exploration while the high UV index demands careful sun protection. Closing out the year, December encapsulates the true essence of a tropical paradise with its mix of warm temperatures and significant rainfall.

Temperature

The peak of Saint-Gilles's temperatures is noted during January through March and December, averaging a high-temperature of 27°C (80.6°F).

Rainfall

In Saint-Gilles, Reunion, during December, the rain falls for 17 days and regularly aggregates up to 143mm (5.63") of precipitation. In Saint-Gilles, during the entire year, the rain falls for 189 days and collects up to 1491mm (58.7") of precipitation.

Sea temperature

In December, the average sea temperature in Saint-Gilles, Reunion, is 26°C (78.8°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

December has the longest days of the year, with an average of 13h and 24min of daylight.
On the first day of December in Saint-Gilles, sunrise is at 05:28 and sunset at 18:47. On the last day of the month, sunrise is at 05:40 and sunset at 19:03 +04.

Sunshine

The months with the most sunshine are January, February, September through December, with an average of 7h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 12, are months with the highest UV index in Saint-Gilles. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In December, an average UV index of 12 transforms into the following instructions:
Ensure every crucial precaution is taken. Individuals with light skin could experience burns in under 5 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Regardless of the cloudiness of the day, a sunscreen with SPF 30 or more should be applied and reapplied generously, specifically after swimming or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.