December sees the Seychelles under the influence of the Northwest Tradewinds.

Some rainy days can certainly be expected during this time in the Seychelles and it can be expected to rain on average during 18 days in December. Rainfall tends to occur in short sharp downpours however although there may be days when it can be overcast for extended spells.

Average temperatures in December are around 27 degrees with 302 mm of rainfall. Humidity is a little higher and light breezes blow from the Northwest.