December weather forecastLa Réunion, Seychelles

Weather in December

December displays a microcosm of the Seychelles' tropical climate features, with a rise in temperature, high humidity and increased rainfall. Waters around La Réunion remain warm at a steady 28°C (82.4°F), remaining inviting for sea exploration. Being the festive season, Seychelles becomes a popular destination for holidaymakers. Despite rainfall levels surging to 166mm (6.54"), the weather remains mostly pleasant allowing for outdoor festivities. The year ends with an increase in temperatures and a celebration of the year's diverse climatic experiences.

Temperature

With the onset of December, the average high-temperature registers at a still moderately hot 28°C (82.4°F), subtly different from November's 27.9°C (82.2°F). Night temperatures during December in La Réunion stabilize at an average of 27.2°C (81°F), closely mirroring the daytime temperatures.

Heat index

December's heat index is computed to be a hot 32°C (89.6°F). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. 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 hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in December in La Réunion is 76%.

Rainfall

In December, in La Réunion, Seychelles, the rain falls for 21.8 days. Throughout December, 166mm (6.54") of precipitation is accumulated. Throughout the year, there are 241.9 rainfall days, and 1432mm (56.38") of precipitation is accumulated.

Sea temperature

In La Réunion, Seychelles, in December, the average water temperature is 28°C (82.4°F).
Note: Engaging in swimming, diving, or other water activities is highly enjoyable in temperatures ranging from 25°C (77°F) to 29°C (84.2°F), without any unpleasant sensations for prolonged durations.

Daylight

With an average of 12h and 24min of daylight, December has the longest days of the year in La Réunion.
On the first day of the month, sunrise is at 05:55 and sunset at 18:16. On the last day of December, in La Réunion, sunrise is at 06:08 and sunset at 18:30 +04.

Sunshine

In December, the average sunshine is 8.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in La Réunion, Seychelles. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the maximum UV index of 7 translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.