December weather forecastSaint-Philippe, Reunion

December

Weather in December

For the final month, December continues to build on November's momentum with a further elevation in temperatures in Saint-Philippe. As the high reaches 25.3°C (77.5°F), the city embraces the heart of summer. With a relative increase in rainfall amassing 81mm (3.19") across, December matches the typically humid climate of Saint-Philippe. Despite the shorter days of the year, an added bonus of sunshine amounting to 10.2 hours per day illuminates the city. Closing out the year, December's weather encapsulates the tropical charm of Saint-Philippe.

Temperature

With December's advent, Saint-Philippe sees an average high-temperature of a still moderately hot 25.3°C (77.5°F), subtly shifted from November's 23.7°C (74.7°F). Saint-Philippe, in the month of December, notes an average low temperature of 22.5°C (72.5°F), indicating a small decrease from the daytime highs.

Humidity

In Saint-Philippe, the average relative humidity in December is 80%.

Rainfall

In December, 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.

Sea temperature

In Saint-Philippe, the average seawater temperature in December is 26.6°C (79.9°F).
Note: For swimming, diving, or other water activities, the temperature range of 25°C (77°F) to 29°C (84.2°F) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.

Daylight

The month with the longest days is December, with an average of 13h and 24min of daylight.
On the first day of the month, sunrise is at 05:25 and sunset at 18:46. On the last day of December, in Saint-Philippe, sunrise is at 05:37 and sunset at 19:02 +04.

Sunshine

In Saint-Philippe, the average sunshine in December is 10.2h.

UV index

January through March, May, October through December, with an average maximum UV index of 6, are months with the highest UV index in Saint-Philippe. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be wary! Reflections from sand and water make UV radiation more intense.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

December temperatures in Saint-Philippe vary between a high-temperature of 25.3°C (77.5°F) and a low-temperature of 22.5°C (72.5°F).

The average relative humidity in December is 80%.

In Saint-Philippe, Reunion, in December, during 23.3 rainfall days, 81mm (3.19") of precipitation is typically accumulated.

In December, the average sea temperature is 26.6°C (79.9°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

The month with the longest days is December, with an average of 13h and 24min of daylight.

In December, the average day length in Saint-Philippe, Reunion, is 13h and 25min.

On the first day of December in Saint-Philippe, Reunion, sunrise is at 05:25 and sunset at 18:46. On the last day of the month, sunrise is at 05:37 and sunset at 19:02 +04.

In Saint-Philippe, the average sunshine duration in December is 10.2h.

January through March, May, October through December, with an average maximum UV index of 6, are months with the highest UV index in Saint-Philippe.

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

23.7°C

25.3°C

25.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.1km/h

15.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

18.6

23.3

25.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

2.2

1.9

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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 sea temperature in December
Saint-Philippe, Reunion

Average sea temperature in December: 26.6°C

The best months for swimming (with the highest average sea temperature) are February and March (28.3°C).
The coldest month (with the lowest average sea temperature) is September (23.6°C).

Average daylight in December /
Average sunshine in December
Saint-Philippe, Reunion

Average daylight in December: 13h and 24min

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 12min

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
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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
Saint-Philippe, 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).