January weather forecast
Saint-Gilles, Reunion

Considered part of the warm rainy season in Saint-Gilles, Reunion, January boasts of heaviest rainfall, measuring 241mm (9.49"). The entirety of the month typically experiences high humidity which pairs with the warmer temperatures, creating a tropical atmosphere. Perhaps due to these conditions, the ocean temperatures remain enticing for water activities throughout January. The long daylight hours, averaging over 13 hours, and the high UV index calls for visitors and locals alike to pack their sun protection. January's weather provides the perfect environment for a range of outdoor activities, with a unique mixture of sun, warmth, and rainfall.

Temperature

January through March and December bring Saint-Gilles's highest average temperatures, reaching a high of 27°C (80.6°F).

Rainfall

The month with the most rainfall is January, when the rain falls for 18 days and typically aggregates up to 241mm (9.49") of precipitation.

Sea temperature

In Saint-Gilles, Reunion, the average seawater temperature in January is 27°C (80.6°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

In Saint-Gilles, the average length of the day in January is 13h and 15min.
On the first day of the month, sunrise is at 05:40 and sunset at 19:04. On the last day of January, in Saint-Gilles, sunrise is at 06:00 and sunset at 19:04 +04.

Sunshine

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

UV index

The months with the highest UV index are January through March, November and December, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 12 in January translates into the following recommendations:
Undertake all critical precautions. Protection from sun harm is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Apply liberally and reapply a broad-spectrum sunscreen of SPF 30+ every two hours, and promptly after any outdoor workout or a swim. Be on guard! The reflective nature of sand and water boosts UV exposure.