Vibrant and tropical, the weather in December marks the true arrival of summer in Mauritius. With warmer air, rising humidity, and longer days, the island becomes lush, lively, and full of energy. Although rainfall increases compared to previous months, sunny spells still dominate, making it a wonderful time for both beach holidays and nature adventures.
The seas are warm, the trade winds soften, and coastal towns buzz with anticipation of the festive season. Let’s explore how the weather in December unfolds across Mauritius’s diverse regions.

Northwestern Coast (Mont Choisy, Trou aux Biches)
The weather in December in Mont Choisy and Trou aux Biches is warm and welcoming. Daytime highs reach up to 30-32 °C, while nights cool slightly to 25.2 °C. Rainfall is modest for the season—around 50 mm across 13–14 days—and the sea temperature holds steady at 27 °C, perfect for relaxed swims and snorkeling. Expect about 8 hours of sunshine daily, and humidity levels around 78%.
Northern Coast (Grand Bay, Pereybere)
In Grand Bay, temperatures peak at 30-32 °C and remain warm overnight at 25.2 °C. Rain is infrequent but present, with around 50 mm falling over nearly two weeks. The sea hovers at 27 °C, making it ideal for boating and water excursions. Sunshine lasts about 8 hours a day, creating prime conditions for beach lovers.
Western Coast (Flic en Flac, Tamarin)
Mauritius’s weather in December on the west coast is particularly pleasant. Flic en Flac and Tamarin see daytime highs of 32 °C and lows around 24 °C. Rain is light to moderate, between 50 and 110 mm depending on the area, spread across 11 to 14 days. Sea temperatures reach 27 °C, and with 8–8.5 hours of daily sunshine, this region remains a favourite for kayaking, swimming, and sunset strolls.
Southwestern Coast (Le Morne)
Le Morne experiences warm, humid weather in December, with daytime temperatures around 30 °C and nights at 21 °C. Rainfall rises to 140 mm over 13 days, though often in quick, heavy bursts. Sunshine remains generous at 7 hours per day. The sea, at 26 °C, invites kite surfers and divers alike.
Southern Coast (Bel Ombre, Souillac)
The weather in December in the southern regions like Bel Ombre and Souillac is typically hot and humid. Daytime highs climb to 30 °C, with cooler nights around 21 °C. Rain is frequent but manageable, averaging 140 mm over the month. The sea temperature holds at 26 °C, and sunshine averages 7 hours a day, lighting up the dramatic southern cliffs and forests.
Southeastern Coast (Mahebourg, Plaine Magnien)
In the southeast, temperatures rise to 31 °C during the day and 22 °C at night. Rainfall ranges from 125 to 130 mm across 12–13 days. Despite the occasional rain, sunshine stretches for 7 to 7.5 hours daily. With sea temperatures at 26 °C, the weather in December here is well-suited to sailing, snorkelling, and exploring the Blue Bay Marine Park.
Eastern Coast (Belle Mare, Trou d’Eau Douce)
Belle Mare and its surrounding areas enjoy long days of sunshine and warmth. Daily highs reach 29.4 °C, and lows hover around 25.1 °C. Rainfall is light to moderate—just under 60 mm across 15.5 days. Sunshine peaks at 10.2 hours per day, and sea temperatures remain at 27 °C, creating serene conditions for early morning dips and paddleboarding.
Central Plateau (Curepipe and Highlands)
Mauritius’s weather in December on the central plateau is cooler than the coast but still summery. Daytime highs climb to 28 °C and nights drop to 20 °C. Rainfall increases here to about 150 mm over 14 days, supporting the region’s lush greenery. Sunshine lasts around 6 hours daily, making it ideal for waterfall hikes and tea route visits.
Sunrise, Sunset & Tides (December)
Sunrise: Between 05:25 and 05:35
Sunset: Between 18:45 and 19:00
Tides: High tide in the early morning and evening; low tide mid-morning and afternoon
Sea Temperature: Around 26–27 °C across the island
The weather in December in Mauritius brings a mix of tropical heat, vibrant landscapes, and festive energy. With warm seas, plenty of sunshine, and nature in full bloom, it’s an excellent month for beach escapes, romantic getaways, or family holidays before the peak season arrives. Whether you’re lounging in Belle Mare or hiking through the Black River Gorges, December offers a quintessential Mauritian summer experience.
December
Location | Avg. High Temp (°C/°F) | Avg. Low Temp (°C/°F) | Avg. Rainfall (mm) | Avg. Sea Temp (°C/°F) |
---|---|---|---|---|
Flic en Flac | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Tamarin | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Grand Baie | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Le Morne | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Belle Mare | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Blue Bay | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
Trou aux Biches | 28 / 82 | 22 / 72 | 118 | 26 / 79 |
For Comparison | ||||
London | 7 / 45 | 2 / 36 | 59 | – |
New York | 5 / 41 | -2 / 28 | 94 | 7 / 45 |
Paris | 6 / 43 | 3 / 37 | 51 | – |
Sydney | 25 / 77 | 17 / 63 | 77 | 22 / 72 |
Have a nice day everyone! Don’t forget to participate in the game! Before you book a flight or accommodation, let me know and we will discuss how you can do it. Details here: