Mauritius enjoys a moderate tropical climate in the Southern Hemisphere, with a time difference of +3 hours compared to mainland France in winter and +2 hours in summer. The seasons are reversed compared to Europe: Mauritian summer corresponds to European winter and vice versa.

 

Annual temperatures generally vary between 19°C and 29°C on the coasts, with more marked variations in the heights of the central plateau where temperatures can be 3 to 4°C cooler.

The north and west of the island are generally warmer and drier, while the east and south receive more precipitation due to exposure to the southeast trade winds.

Important :The UV index remains high all year round in Mauritius (between 10 and 12), even on cloudy days. Effective sun protection (SPF 50+ cream, hat, glasses) is essential whatever the season.

Southern summer (November to April)

The hot and humid season lasts from November to April. Temperatures range between 27°C and 33°C on the coasts, with feelings of up to 35°C due to humidity.

This period is characterized by more frequent rain, particularly in the form of showers or thunderstorms which generally last between 30 minutes and 2 hours. Precipitation is more abundant in the central plateau and the southern part of the island.

The lagoon water reaches its most pleasant temperature during this season, between 27°C and 29°C, making it an ideal time for water activities and diving.

Southern winter (May to October)

The cool season sets in from May to October, with milder temperatures varying between 20°C and 25°C. The nights can be relatively cool, especially in July and August when night temperatures sometimes drop to 15°C in the center of the island.

This period is characterized by the predominance of the trade winds, fresh winds blowing from the southeast. The climate is drier and rainfall less frequent, although the east of the island remains wetter than the west.

Surfers favor this season, particularly between June and August, when the trade winds are the most favorable.

January

January marks the heart of the Mauritian summer with minimum temperatures of 21°C in the morning and maximum of 28°C in the afternoon. Average precipitation reaches around 259 mm. This is the start of the cyclonic period, with risks of intense but generally short-lived showers (30 minutes to 1h30). The water in the lagoon is at its warmest, around 27°C.

February

February is the hottest and most humid month of the year. Temperatures range from 21°C to 28°C with precipitation up to 314 mm. It is also the month with the highest cyclone risk. Despite the heat and humidity, there are still many sunny days between the showers.

Mars

In March, temperatures range between 21°C and 27°C with around 296 mm of precipitation. The risk of cyclones remains present but is starting to gradually decrease. The sea remains very pleasant for swimming with a temperature around 27°C.

April

April marks a transition to the cooler season. Temperatures vary from 20°C to 26°C with rainfall decreasing to around 160 mm. Weather conditions become milder, making April one of the best months to visit the island.

May

May ushers in the southern winter with temperatures between 18°C ​​and 25°C. Precipitation drops to around 124 mm. The climate becomes drier and pleasant, ideal for hiking and exploring the interior landscapes of the island.

June

In June, winter sets in with temperatures varying from 16°C to 23°C and only 85 mm of precipitation. The trade winds are strengthening, particularly appreciated by surfers. The nights become cooler, requiring a light vest for the evenings.

July

July is the coolest month of the year with temperatures between 16°C and 22°C. Precipitation remains moderate at around 115 mm. This is an excellent time to explore picturesque villages and experience Mauritian culture, with sunny days despite the relative cool.

August

August continues the southern winter with temperatures of 16°C to 22°C and around 100 mm of rain. Water temperatures drop to their lowest level of the year, around 23-24°C, which is still pleasant for swimming. Most hotel swimming pools are heated during this period.

September

September marks the beginning of the transition to summer. Temperatures are starting to rise slightly but remain pleasant, between 17°C and 24°C. Conditions are ideal for all outdoor activities and the climate remains relatively dry.

October

October is one of the most pleasant months to visit Mauritius. Temperatures are gradually rising with the climate still dry and sunny. It is a very popular time for tourists who want to avoid the intense heat of summer while enjoying beautiful weather conditions.

November

November opens the hot season with temperatures increasing significantly. The climate generally remains dry at the start of the month before the first rains of summer begin to appear. The hurricane season officially begins on November 15, although the risks remain low at the start of the period.

December

December truly ushers in the southern summer with high temperatures and increasing humidity. Precipitation increases but often remains in the form of passing showers. This is a popular time for year-end vacations, with a particularly warm and welcoming lagoon.

The west coast

The west coast of Mauritius enjoys the driest and hottest climate. Protected from the trade winds, this region experiences less precipitation than the rest of the island, even during the rainy season. Port Louis, the capital, regularly records the highest temperatures. The water temperature varies between 23°C and 28°C, making swimming pleasant all year round.

The north coast

The north of the island enjoys a particularly mild climate thanks to its protection against the prevailing winds. This region has low humidity and few rainy days compared to the rest of the territory. Temperatures are slightly higher than elsewhere and the amount of sunshine is excellent.

The east coast

The east coast, directly exposed to the southeast trade winds, is the windiest and wettest region of the island. During the southern winter, cool winds can drop the water temperature by up to 20°C. This relative coolness makes it a less popular destination for swimming in winter, but perfect for fans of water sports like kitesurfing.

The south coast

The south of the island shares the climatic characteristics of the east with marked exposure to the trade winds and more abundant precipitation. Temperatures are slightly cooler there than in the north and west.

The central plateau

The center of the island, with its reliefs, presents the coolest and wettest climate in Mauritius. Temperatures are systematically 3 to 4°C lower than coastal areas, varying between 20°C in August and 26°C in February. This region receives the heaviest rainfall, reaching 300 mm in January. Cloud cover is greater there, creating lush vegetation.

The temperature of the Mauritian lagoon remains mild all year round, generally oscillating between 23°C and 29°C. Variations follow the seasons:

During the austral summer (November-April), the water reaches its most pleasant temperature between 27°C and 29°C. This period is particularly recommended for scuba diving, with optimal visibility and calmer seas.

During the southern winter (May-October), the temperature gradually drops to reach its minimum in August, around 23-24°C. To the east of the island, the winds can cause the water to lose an additional 2 to 3°C. Despite these cooler temperatures, swimming remains pleasant for the majority of visitors.

The cyclone season in Mauritius officially runs from November 15 to April 30, with a critical period between December and March. The peak of cyclone activity is generally in January and February.

Frequency and intensity

Direct cyclones remain relatively rare in Mauritius, with around 1 to 2 direct impacts per decade. On the other hand, tropical storms are more frequent and can bring strong winds and intense rain. The month of February presents the highest risk with around 45% probability of cyclonic phenomena.

Alert system

The Mauritian government has established an effective alert system composed of four levels:

Class 1 (vigilance): A cyclone could form within 36 to 48 hours. It's time to start preparations.

Class 2 (warning): Gusts of up to 120 km/h within 24 hours. Schools and some businesses close.

Class 3 (threat): Dangerous gusts expected within 12 hours. The population must stay at home. Air flights are generally suspended.

Class 4 (imminent danger): Cyclone imminent with gusts exceeding 120 km/h. Total confinement of the population. All flights are canceled.

Red flags are raised on public buildings during alerts, replaced by blue flags at the end of the alert to signal the end of the danger.

Real-time tracking:You can follow cyclone alerts on the official Mauritius Meteorology website (metservice.intnet.mu) or via their mobile application.

Precautions for travelers

If you are planning a trip during the hurricane season, choose November and April which present only 15% risk. Hotels and tourist infrastructures are built according to strict anticyclonic standards and have proven safety protocols. It is strongly recommended to take out travel insurance including a cancellation and repatriation clause in the event of a cyclone.

The best periods

The optimal time to visit Mauritius is from May to December, during winter and the start of the austral summer. These months combine pleasant climate, little rain and a low cyclone risk.

The months of April to June are a particularly recommended period: temperatures remain warm without being stifling, the rains decrease and the hurricane season is coming to an end.

September to December also offers excellent conditions with a dry and sunny climate, although this period is more frequented by tourists, particularly in October and November.

July and August: Mauritian winter, an interesting alternative

July and August are a particularly suitable period for people sensitive to heat or who have difficulty withstanding high temperatures. With average daytime temperatures of 23-24°C on the coasts and nighttime lows around 16°C, these months offer a mild and pleasant climate, ideal for outdoor activities without the stifling feeling of summer.

Advantages of this period:

• Mild and pleasant temperatures, perfect for hiking and exploring the island
• Dry climate with little precipitation
• No cyclone risk
• Rates often more advantageous than in high season
• Ideal for the elderly or young children who have difficulty withstanding intense heat
• Excellent sunshine despite the relative coolness
• Optimal conditions for land sports (golf, mountain biking, hiking)

Disadvantages to consider:

• Cooler lagoon water (23-24°C), which may be less comfortable for some swimmers
• Even lower temperature on the east coast (20-21°C) due to the trade winds
• Cool nights requiring long clothing for evenings
• Stronger wind, especially on the east and south coasts
• Some hotel pools may not be heated

This period is particularly suitable for European travelers looking for a mild and sunny winter without the extreme tropical temperatures, as well as for lovers of hiking and cultural discovery.

Periods to avoid

January to March corresponds to the hottest, most humid period with the highest cyclone risk. If you are sensitive to humid heat or want to avoid weather disruptions, it is best to avoid these months.

However, even during this period, Mauritius remains a pleasant destination with many sunny days between showers. Prices may be more advantageous and tourist numbers may be lower.

For beach and swimming enthusiasts

Choose the period from November to April to enjoy the lagoon water at its warmest (27-29°C). The west and north coasts offer the best conditions with calm water and protected beaches.

For surfers and kitesurfers

The period from June to August is ideal with the most favorable trade winds. The east coast, particularly around Le Morne, offers the best conditions. Kitesurfing can be practiced all year round, but the period from April to November is optimal.

For scuba diving

January to April is the best season with warmer water, calmer seas and optimal visibility. Marine biodiversity is particularly active during this period.

For hiking and cultural discovery

May to October offers the most comfortable conditions with milder temperatures, ideal for exploring the trails of the Black River gorges or climbing Morne Brabant. The vegetation remains lush after the rainy season.

For big game fishing

October to April provides the best catches with intense marine activity during the austral summer.

When is the best time to go to Mauritius?

The months from May to December are generally the most recommended, with a pleasant climate and little rain. The April-June period is particularly ideal for avoiding intense heat while enjoying good weather conditions and a low cyclone risk.

Can you swim all year round in Mauritius?

Yes, swimming is pleasant all year round. The water temperature varies between 23°C in winter (August) and 29°C in summer (January-February). Even in the cooler months, the water remains at a comfortable temperature for most visitors.

What is the water temperature in August?

In August, the water temperature reaches its lowest level of the year, between 23°C and 24°C on the west and north coast. On the east coast, it can drop to 20-21°C due to the trade winds. Despite this, swimming remains entirely possible.

Is there a risk of cyclones in December?

Yes, the hurricane season begins on November 15 and lasts until April 30. However, in December, the risk remains moderate (around 20-25% probability). The highest risk months are January, February and March, with February presenting the highest risk (45% probability).

Is it cold in July-August in Mauritius?

No, it's not cold in the European sense of the word. Daytime temperatures range between 23°C and 24°C, with nighttime minimums around 16°C. It is a cool but pleasant period, ideal for people sensitive to heat. Just bring a light cardigan for the evenings.

Which coast to choose depending on the season?

In summer (November-April), all coasts are pleasant, but the west and north coast offer more sun. In winter (May-October), also favor the west and the north because the east coast can be windy and the water cooler. For kitesurfing, the east coast (Le Morne) is ideal all year round.

Does it rain a lot in Mauritius?

Rain is most frequent from November to April, but it generally comes in the form of short showers (30 minutes to 2 hours) followed by sunshine. The dry season (May-October) sees little precipitation, especially on the west and north coasts. The central plateau remains the wettest region all year round.

Do you need sun protection all year round?

Absolutely ! The UV index remains very high (10-12) all year round in Mauritius, even on cloudy days or in winter. High factor sunscreen (SPF 50+), a hat and sunglasses are essential whatever the season.