Last updated: January 18, 2025
Port Louis, Mauritius, exhibits a tropical savanna climate as classified by the Koppen-Geiger system (Am). Characterized by warm temperatures throughout the year, the city experiences a minimum of 17°C (63°F) in August, with averages hovering around 24°C (75°F). The peak temperatures typically reach up to 30°C (87°F) in January, marking the hottest period of the year. This climatic profile contributes to the region's lush landscapes and vibrant ecosystems, making Port Louis a captivating destination for both locals and tourists alike.
In Port Louis, Mauritius, temperature patterns exhibit distinct seasonal trends throughout the year. The hottest months are January to March, where minimum temperatures range from 21-23°C (71-74°F) and maximums consistently peak at around 30°C (86-87°F). As the seasons transition into cooler months from April to August, temperatures gradually decline, with minimums dipping to a chilly 17°C (63°F) in August. The average temperatures during this period hover around 21-25°C (71-78°F), making the climate milder and comfortable. Starting in September and extending through November, temperatures begin to rise again, culminating in a warm December, where minimums return to 22°C (73°F) and maximums reach 29°C (85°F). This annual cycle creates a dynamic yet consistently pleasant climate, ideal for exploring the region's natural beauty.
In Port Louis, temperatures range from a minimum of 17°C (63°F) in August to a maximum of 30°C (87°F) in January, showcasing the warm climate typical of this region. For more detailed information, you can refer to the monthly temperatures in Port Louis.
Precipitation in Port Louis, Mauritius, follows a clear seasonal pattern, with the wettest months occurring from January to March. During this three-month span, average rainfall reaches approximately 172-181 mm (6.8-7.1 in), often accompanied by frequent rain days—up to 26 days in March alone. This period is characterized by high humidity and occasional tropical storms, which contribute to the lush vegetation of the region. As the rainy season transitions into autumn, April marks a significant drop in precipitation to 112 mm (4.4 in), signaling the beginning of a dry spell.
As the year progresses into the cooler months from May to October, rainfall diminishes drastically, with averages falling to a low of 29 mm (1.1 in) in September, making it the driest month. This decrease is accompanied by fewer rainy days, peaking at only 9 days in August. However, precipitation begins to increase again in November and December, culminating in around 63 mm (2.5 in) and 113 mm (4.5 in), respectively. This seasonal pattern of varying precipitation not only shapes the climate but also plays a crucial role in the island's agricultural and ecological dynamics.
In Port Louis, Mauritius, sunshine duration highlights a distinct seasonal trend characterized by increasing hours of sunlight as the year progresses. The summer months from December to March showcase the peak sunshine, with March recording an impressive 346 hours of bright sunlight, just before the onset of the cooler season. As the year begins in January with 303 hours, sunshine steadily rises, peaking in February at 330 hours. This trend suggests that the summer and early autumn months are ideal for sun-seekers looking to bask in the warm rays of the tropics.
As the seasons transition into winter, sunshine hours begin to fluctuate slightly but remain relatively high. June experiences the lowest sunshine with 298 hours, while July bounces back slightly to 311 hours. Interestingly, the subsequent months of October and November experience another surge, culminating in 391 hours of sunshine in December, making it one of the sunniest months of the year. Overall, this pattern not only reinforces the vibrant climate of Port Louis but also presents an attractive appeal for tourists and locals alike, eager to take advantage of abundant sunny days throughout the year.
Port Louis, Mauritius, experiences a notably high UV Index throughout the year, especially during the summer months when indices soar to extreme levels. In January and February, the UV Index remains at a striking 16, indicating extreme exposure levels with a rapid burn time of just 10 minutes. Even as March approaches, the UV Index slightly decreases to 14, yet it still falls within the extreme category, emphasizing the need for individuals to take protective measures against sun exposure. This trend continues into April, where the UV Index remains a formidable 12, reinforcing the significance of sun safety during these peak months.
As the year progresses toward the cooler months, the UV Index begins to decline, but it still presents notable readings. In May, the index drops to 9, categorizing it as very high with a burn time of 15 minutes, offering a slight relief compared to the earlier months. By June, the UV Index lowers further to 7, classified as high with an extended burn time of 25 minutes. However, the rates spike back up to extreme levels in September to November, maintaining indices around 11 to 14 and burn times of 10 minutes. This annual pattern underscores the importance of consistent sun protection, particularly during the most intense months when UV radiation poses significant health risks.
UV Risk Categories
Daylight duration in Port Louis, Mauritius, showcases a pattern influenced by the changing seasons, with a notable range in hours throughout the year. During the peak of summer in January, the city enjoys approximately 13 hours of daylight, providing ample time for outdoor activities and exploration. This trend continues into February, where daylight remains at 12 hours. However, as the seasons transition into autumn and winter, daylight hours gradually decrease, dropping to 11 hours in both April and May, indicating a shift towards shorter days.
The winter months of June present the shortest daylight duration at 10 hours, aligning with the annual cycle of reducing sunlight. Following this period, daylight hours see a slight rebound, returning to 11 hours from July to September. As the year progresses, daylight duration begins to lengthen again in October, reaching 12 hours before culminating in November and December, where it returns to 13 hours. This consistent fluctuation not only underscores the tropical climate of Port Louis but also impacts the local lifestyle, influencing activities, agriculture, and tourism throughout the year.
Port Louis, Mauritius, experiences a tropical climate with warm temperatures year-round. Average temperatures range from a minimum of 17°C (63°F) in August to a maximum of 30°C (86°F) in January and February, while annual precipitation peaks in January at 172 mm (6.8 in) and is lowest in August at 35 mm (1.4 in). The city enjoys substantial sunshine, especially in October and December, with over 360 hours of sunlight during those months. For more details, visit Port Louis climate.
In conclusion, Port Louis, Mauritius, exemplifies a vibrant tropical climate characterized by a dynamic interplay of temperature, precipitation, sunshine duration, UV Index, and daylight hours throughout the year. The city experiences warm temperatures year-round, with peak sunshine and high UV levels during the summer months, necessitating protective measures for sun exposure. Meanwhile, daylight duration varies, providing ample light during summer while transitioning to shorter days in winter. This climate not only fosters an array of unique ecosystems and enhances the region's natural beauty but also significantly influences the activities and lifestyle of its residents and visitors, cementing Port Louis as a compelling destination for those seeking both adventure and tranquility in a sun-drenched paradise.