Grand Port Climate

Last updated: January 18, 2025

The climate of Grand Port, Mauritius, is characterized by a tropical monsoon (Köppen-Geiger classification: Am), resulting in a warm and inviting atmosphere throughout the year. With minimum temperatures dipping to 17°C (62°F) in August, the region experiences a comfortable coolness during the winter months. The average annual temperature hovers around 24°C (75°F), providing a pleasant climate for both residents and visitors. Peak warmth is recorded in January, with maximum temperatures reaching 30°C (87°F), creating ideal conditions for outdoor activities and exploration in this vibrant locale.

Grand Port temperature by month

In Grand Port, Mauritius, temperature exhibits distinct seasonal patterns, characterized by warm and stable conditions year-round. The hottest months are January and February, where minimum temperatures range from 21°C (71°F) to 23°C (73°F), with average highs consistently around 30°C (86-87°F). As the region transitions into autumn, temperatures begin to cool slightly, with April marking a gradual decline in maximum temperatures to 29°C (85°F). The winter months of June and July are the coolest, featuring minimums dropping to 17°C (64°F) and 17°C (62°F), respectively, along with average temperatures around 21°C (71°F). However, warmer conditions return in October and November, as temperatures rise again, setting the stage for a mild December with averages back at 25°C (78°F). Overall, the climate is marked by moderate fluctuations, creating an appealing environment for both locals and tourists alike.

Monthly Temperatures in Grand Port, Mauritius

The chart illustrates Grand Port's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec797979777472707071737578
Data source: Grand Port temperature data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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The average of daily temperatures (24 hours) calculated across all days in the month.

In the coastal regions of Mauritius, both Beau Vallon and Mahebourg experience similar temperature ranges, with minimums of 17°C (64°F) in August and maximums of 30°C (85°F) in January, as detailed in their respective monthly temperature links: monthly temperatures in Beau Vallon and monthly temperatures in Mahebourg. Nouvelle France also shares a comparable temperature profile, featuring a minimum of 17°C (63°F) in August and a maximum of 30°C (87°F) in January, as noted in the link: monthly temperatures in Nouvelle France.

Precipitation Patterns in Grand Port

Grand Port, Mauritius, experiences a distinct precipitation pattern, largely influenced by the tropical climate. The wettest months are typically January, February, and March, with rainfall reaching up to 191 mm (7.5 in) in March alone, while the number of rainy days peaks at 26 in the same month. This period accounts for a significant portion of the annual rainfall, making it essential for the region's lush vegetation and agricultural practices. As the seasons transition to autumn and winter, there is a noticeable decrease in precipitation, with April seeing a reduction to 134 mm (5.3 in) and only 24 rainy days.

In winter months, such as June and August, rainfall significantly drops, with totals as low as 45 mm (1.8 in) and 53 mm (2.1 in), reflected in the reduced number of rainy days— dropping to just 11 in August. Despite this lull, a gradual increase is observed towards the end of the year, with November receiving 67 mm (2.6 in) and December totaling 125 mm (4.9 in). Overall, Grand Port showcases a tropical monsoon climate with distinct wet and dry periods, essential for maintaining the region's vibrant ecosystems.

Monthly Average Precipitation in Grand Port, Mauritius

The average monthly precipitation in Grand Port, providing insights into seasonal rainfall patterns and the region's precipitation trends throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16718719113470536145364467125
Data source: Grand Port precipitation data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.
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Sunshine Duration in Grand Port

Grand Port, Mauritius, boasts a remarkable sunshine duration that reflects the region's tropical climate, with a notable upward trend from winter to summer. The peak sunshine months occur from October to December, showcasing impressive totals, where December shines brightest with 391 hours of sunlight. Notably, this period marks a transition into the warmer summer months, inviting both locals and tourists to enjoy outdoor activities under predominantly clear skies. February and March also present excellent conditions, with sunshine hours reaching 330 and 346 hours, respectively, making them ideal for sun-seekers.

Conversely, the winter months of June and July exhibit a slight dip in sunshine hours, recording 298 hours and 311 hours, respectively. Although these months receive less sunlight than their summer counterparts, they remain relatively bright compared to many temperate regions. The overall pattern demonstrates that Grand Port enjoys an abundance of sunshine throughout the year, with the latter part of the year offering the most sun-soaked days, contributing to its status as a sought-after destination for those looking to escape the colder climates elsewhere.

Monthly Sunshine in Grand Port, Mauritius

Monthly sunshine duration represents the total hours of direct sunlight Grand Port receives each month, excluding periods when the sun is obscured by clouds or other obstructions.
JanFebMarAprMayJunJulAugSepOctNovDec303h330h346h316h321h298h311h325h330h364h372h391h
Data source: Grand Port sunshine duration data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

Grand Port UV Index Trends

In Grand Port, Mauritius, the UV Index displays significant fluctuations throughout the year, with notably high levels during the summer months. January and February reach a staggering UV Index of 16, categorizing exposure as extreme and indicating a burn time of merely 10 minutes. This trend continues into March (UV Index 14) and April (UV Index 12), where the risk of harm from unprotected sun exposure remains significant. Such high UV levels during the first quarter make it vital for both residents and visitors to take proper sun safety precautions to avoid skin damage.

As the seasons progress into late autumn and winter, UV Index values experience a gradual decline. By May, the index decreases to 9, signifying a very high risk, while June and July see values of 7 and 8 respectively, categorized as high and very high, with burn times extended to 25 minutes. However, even during these cooler months, sun protection remains essential, particularly in high UV times such as September (UV Index 11) and November (UV Index 14). Overall, Grand Port's UV Index data highlights the importance of vigilance against sun exposure, with extreme levels persisting for much of the year.

Monthly Maximum UV Index for Grand Port, Mauritius

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Grand Port. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781011131415
Data source: Grand Port UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Daylight Hours in Grand Port

In Grand Port, Mauritius, daylight duration reflects a consistent yet dynamic annual pattern, providing ample light throughout the year. The longest days are observed in January and November, each offering about 13 hours of sunlight, which coincides with the peak of summer and the early onset of the southern hemisphere's warm season. As the year progresses into late winter and early spring, daylight begins to taper off slightly, with April and May both featuring 11 hours of daylight, allowing for pleasant yet shorter days as temperatures start to cool.

As winter approaches, daylight duration dips to its lowest point in June, reducing to 10 hours. However, this shift is followed by a gradual restoration of sunlight, with daylight increasing again in July and August to 11 hours. By October, the length of the day returns to 12 hours, paving the way for the long daylight hours of November and December once more. This cycle underscores the relatively stable and mild climate of Grand Port, where sunshine is abundant, contributing to the region's allure as a year-round destination for visitors seeking warmth and outdoor activities.

Average Monthly Daylight Hours in Grand Port, Mauritius

This chart shows the total daylight hours Grand Port receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec791h764h730h695h667h653h660h685h718h753h783h799h
Data source: Grand Port daylight hours, calculated based on aggregated data for various regional locations, determined by the times between sunrise and sunset.

Climate Highlights of Grand Port's Popular Destinations

Beau Vallon, Mauritius, boasts a tropical climate characterized by warm temperatures throughout the year. Average temperatures range from a minimum of 17°C (64°F) in August to a maximum of 30°C (85°F) in January, with precipitation peaking in March at 202 mm (7.9 in). The region enjoys abundant sunshine, particularly in October and December, with up to 391 hours of sunlight. This blend of warmth, rain, and sunshine creates a vibrant environment ideal for outdoor activities. For more details, visit Beau Vallon climate.

Mahebourg, Mauritius enjoys a tropical climate with warm temperatures year-round, ranging from a minimum of 17°C (64°F) in August to a maximum of 30°C (85°F) in January. The wettest months are from January to March, with precipitation peaking at 202 mm (7.9 in) in March, while June and September are the driest months with only 57 mm (2.3 in) and 40 mm (1.6 in) of rain, respectively. Sunshine is abundant, particularly from October through December, when average hours of sunshine reach up to 391 hours in December. For more detailed insights, visit Mahebourg climate.

Nouvelle France, Mauritius experiences a tropical climate characterized by warm temperatures and distinct seasonal rainfall. Temperatures range from a mild minimum of 17°C (63°F) in August to a maximum of 30°C (87°F) in January and February, with averages consistently around 26°C (79°F) throughout the year. Precipitation is highest in the early months, peaking at 181 mm (7.1 in) in February, while the driest period occurs from June to September, with less than 45 mm of rain. The region enjoys ample sunshine, particularly from October to December, when it can exceed 360 hours per month. For more detailed climate information, visit Nouvelle France climate.

Conclusion

In conclusion, Grand Port, Mauritius, is characterized by its tropical monsoon climate marked by warm temperatures, significant sunshine, and a robust UV Index, alongside varying rainfall throughout the year. The region enjoys a substantial amount of daylight, particularly during the summer months, fostering an inviting environment for tourism and leisure activities. As visitors explore this vibrant locale, understanding the seasonal patterns of temperature, precipitation, sunshine duration, and UV exposure can enhance their experience, ensuring both enjoyment and safety. Ultimately, Grand Port stands out as a captivating destination, offering a blend of natural beauty and a climate conducive to outdoor adventures year-round.

Discover the Climate of Grand Port's Places

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