Weather in Seychelles in December

How December compares

December is the 7th warmest month of the year in Seychelles and ranks 27th of 134 destinations we compare for December - see where else is hot in December. Against London's average high of 7.7°C in December, Seychelles is 19.3°C warmer by day and 22.8°C warmer at night.

Daytime and night-time in December

The typical December day in Seychelles peaks at 27.0°C, but that is an average: the warmest 10% of days reach 27.8°C or more. About 100% of days top 25°C. Nights average 25.5°C; one night in ten drops to 24.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest December day here reached 28.9°C (1997-12-26) and the coldest night 23.8°C (2007-12-26).

Rain in December

Wet (more than 8 rainy days): about 23 days with 1 mm or more, 203 mm in total. Year to year it varies a lot - the wettest December was 1994 with 331 mm, the driest 1996 with 73 mm. Humidity averages 83%.

Sea temperature in December

The sea averages 28.3°C - warm enough to swim (22°c+). Depending on the year it ranges from 27.7°C to 28.9°C. For the warmest sea here, come in April (29.8°C).

Sunshine and daylight

Around 4.6 hours of sunshine a day (estimated from cloud cover), 12.3 hours of daylight: the sun rises about 06:02 and sets about 18:25 local time in mid-December. Average cloud cover is 62%.

Is December a good time to visit Seychelles?

It is a reasonable choice: hot days but expect showers. The best months for Seychelles on our scoring are July, February, April; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Warm enough for swimming, humid enough to feel sticky

The heat is steady rather than extreme: daytime highs average 27°C, while nights only ease to 25.5°C. With humidity at 83%, that small overnight drop means evenings are unlikely to feel refreshing. Pack light, loose clothing and consider air-conditioned accommodation if you struggle to sleep in humid conditions. Keep strenuous outdoor plans flexible and take breaks from the heat around midday, even though temperatures are not typically scorching. The sea averages 28.3°C, so getting into the water should feel comfortable rather than bracing. December suits travellers who enjoy warm seas and balmy evenings more than those who need cool nights or crisp, dry air.

Plan around rain, not uninterrupted sunshine

Rain is the main compromise. About 23 days receive measurable rainfall, so it makes sense to expect wet weather during your stay rather than treat it as an unlikely interruption. That does not mean every rainy day is a washout, but the monthly figures cannot tell you when rain will arrive or how long it will last. Sunshine averages 4.6 hours within 12.3 hours of daylight, leaving plenty of daylight without guaranteeing bright skies. Bring a lightweight waterproof and protect anything that needs to stay dry. Leave room to rearrange outdoor plans; December is less suitable if your holiday depends on long, reliably sunny days.