Last updated: August 21, 2025
In Saint Pierre, Mauritius, September brings a pleasant climate characterized by a maximum temperature of 26°C (79°F) and an average temperature of 22°C (71°F). This month experiences a mild minimum temperature of 18°C (65°F), making it an ideal time for outdoor activities. However, with 29 mm (1.1 in) of rainfall over 10 days, visitors should be prepared for occasional showers. The humidity level hovers around 78%, contributing to the tropical ambiance of the region. Overall, September is a harmonious blend of warm temperatures and refreshing rainfall, showcasing the unique charm of this beautiful destination.
In September, Saint Pierre, Mauritius, experiences a delightful transition into spring with temperatures that range from a mild minimum of 18°C (65°F) to a comfortable maximum of 26°C (79°F). The average temperature hovers around 22°C (71°F), creating the perfect setting for outdoor activities and exploration. As the island shakes off the cooler winter months, September marks a gradual warming trend, with daytime highs gently rising from the previous months. Notably, this month sees a resurgence in warmth compared to the chill of July and August, making it an ideal time to enjoy the region's stunning beaches and lush landscapes.
September in Saint Pierre, Mauritius, marks a notable transition in the weather, with precipitation dropping to 29 mm (1.1 in) over just 10 days. This represents one of the driest months of the year, as it follows the wetter winter months of June, July, and August, which accounted for only 40 mm, 43 mm, and 35 mm respectively. The decrease in rainfall signifies the onset of a drier season, paving the way for clearer skies and more sunshine. In comparison, January through March typically sees much heavier rains, with January receiving 172 mm (6.8 in) and averaging 22 days of precipitation. As the island community braces for the upcoming months, September's relatively mild rainfall offers a brief respite, encouraging outdoor activities while heralding the gradual transition into the warmer, wetter months ahead.
In September, Saint Pierre, Mauritius experiences a humidity level of 78%, marking a slight dip from the previous months' higher averages. This month continues the trend of moderate humidity, following the peak months of January and February, where levels soared to 82% and 86%, respectively. As the year progresses, humidity gradually decreases during the mid-year months of June and August, where it reaches a low of 74%. However, as September rolls around, humidity climbs slightly, hinting at the return of the warmer, more humid conditions typical of the island's climate. This subtle variation reflects the temperate transition toward the end of the year, where humidity settles back into a consistent rhythm, offering a comfortable environment for residents and visitors alike.
As September arrives in Saint Pierre, Mauritius, the UV Index reflects an extreme category level of 11, with a quick burn time of just 10 minutes. This month follows the trend of high UV exposure seen throughout the year, particularly in the summer months when figures peak at 16 in January and February. Even as the seasons transition, September's UV Index remains notably elevated, similar to the preceding winter months of July and August, where values lingered around 8 to 10. As we move towards October, the UV levels climb again to 13, signaling the persistent need for sun protection. Stay informed and safeguarded by checking the UV forecast regularly. For more details on the UV Index throughout the year, visit Saint Pierre UV Index.
UV Risk Categories
September in Saint Pierre, Mauritius, continues the island's trend of abundant sunshine, boasting 330 hours of glorious light. This month ties with February and is a highlight amid the welcoming transition to spring. Following August's 325 hours, the steady rise in sunlight hours throughout the year reveals a captivating pattern; September marks the point where sunny days begin to outshine the earlier winter months, promising warmth and outdoor adventures. As October approaches with 364 hours of sun, the allure of Saint Pierre only intensifies, inviting visitors to bask in the radiant embrace of its tropical charm.
In Saint Pierre, Mauritius, September heralds a delightful transition, boasting a 61% chance of sunny weather. As the winter months fade, this month showcases a significant uptick in sunshine compared to the earlier autumn, where the likelihood dipped to just 28% in April. Interestingly, September's sunny disposition aligns closely with the sunny spells of July and August, both featuring percentages in the low sixties, making it an attractive option for sun-seekers. While the end of the year draws near, and the chances of sunshine peak again in November at 66%, September offers a compelling glimpse of the vibrant sunshine that waits just around the corner.
As September unfolds in Saint Pierre, Mauritius, the daylight duration stabilizes at 11 hours, continuing the pattern established in recent months. This consistency marks a transition from the longer days of early summer, where January boasts 13 hours of sunlight, to the shorter duration experienced during the cooler months of June, which dips to 10 hours. Following this period, daylight hours gradually extend again, peaking at 13 hours in November and December. The September sun serves as a gentle reminder of the approaching shift towards longer days, making it an ideal time to bask in the warm, lingering light of late winter.
In September, the winds in Saint Pierre, Mauritius begin to pick up strength, with an average wind speed reaching 6.5 m/s (15 mph). This marks a noticeable increase from the previous months, particularly after a mild winter. Notably, September's breezy conditions set the tone for the impending summer season, showing a transition from the light breezes of earlier months, like May and June, which ranged between 4.9 m/s and 6.3 m/s. The prevalent winds in September signal an invigorating change, encouraging both outdoor activities and water sports as the island gears up for warmer days ahead. The climbing wind speeds not only highlight the dynamic climate of the region but also enhance the vibrant atmosphere that characterizes this beautiful island paradise.
Weather in Saint Pierre varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Saint Pierre, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is relatively mild, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 26°C (79°F) and an average of 22°C (71°F). The month sees about 29 mm (1.1 in) of precipitation over approximately 10 days, with humidity levels around 78%. In contrast, January experiences warmer temperatures, with a minimum of 21°C (71°F), an average of 26°C (79°F), and a maximum of 30°C (87°F). However, it is also much wetter, receiving 172 mm (6.8 in) of rainfall across about 22 days, accompanied by slightly higher humidity at 82%. For more detailed insights, you can check Saint Pierre weather in January.
In September, the weather is mild with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 26°C (79°F). The month typically sees about 29 mm (1.1 in) of precipitation over around 10 days, and humidity levels are relatively comfortable at 78%. In contrast, February experiences warmer temperatures, with an average low of 23°C (74°F) and highs reaching up to 30°C (86°F). This month is significantly wetter, with rainfall totaling 181 mm (7.1 in) over 24 days and higher humidity at 86%. For a more detailed overview of February weather in Saint Pierre, visit Saint Pierre weather in February.
When comparing the weather in September and March, it’s clear that March tends to be warmer and wetter. In September, temperatures range from a comfortable minimum of 18°C (65°F) to a maximum of 26°C (79°F), with an average of 22°C (71°F). This month also experiences relatively low precipitation, totaling 29 mm (1.1 in) over about 10 days, and a humidity level of 78%. In contrast, March sees higher temperatures, with a minimum of 22°C (72°F) and a maximum of 30°C (86°F), averaging 26°C (79°F). Additionally, March is much rainier, receiving 177 mm (7.0 in) of precipitation over 26 days, coupled with slightly increased humidity at 82%. For more details on the weather during this month, you can visit Saint Pierre weather in March.
When comparing September and April weather, it becomes clear that April tends to be warmer and wetter. In September, temperatures range from a mild 18°C (65°F) to a comfortable maximum of 26°C (79°F), with average humidity at 78%. In contrast, April features a higher temperature range, with minimums of 21°C (71°F) and maximums reaching 29°C (85°F), along with increased precipitation, totaling 112 mm (4.4 in) across 23 days, resulting in a higher humidity level of 83%. For a detailed look at April's weather, you can visit Saint Pierre weather in April.
In comparing the weather between September and May, we notice that May tends to be slightly warmer, with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 28°C (82°F) compared to September's range of 18°C (65°F) to 26°C (79°F). Additionally, May experiences more precipitation, totaling 56 mm (2.2 in) over approximately 13 days, in contrast to September's 29 mm (1.1 in) across about 10 days. Humidity levels are quite similar in both months, with May at 80% and September at 78%. For a detailed look at the weather in May, you can visit Saint Pierre weather in May.
In comparing the weather between September and June, both months exhibit similar average temperatures, hovering around 22°C (72°F), with maximums reaching up to 26°C (79°F). However, September tends to be slightly cooler, with a minimum temperature of 18°C (65°F), while June's minimum sits at 19°C (67°F). Precipitation is more pronounced in June, with 40 mm (1.6 in) over 11 days, compared to September's 29 mm (1.1 in) spread over 10 days. Additionally, September has a higher humidity level at 78% versus June’s 74%. For more detailed insights, you can refer to Saint Pierre weather in June.
In comparing the weather between September and July, both months exhibit similar temperature ranges, with September having a slightly higher average temperature of 22°C (71°F) compared to July's average of 21°C (71°F). Both months also experience maximum temperatures peaking at 26°C (79°F) and 26°C (78°F) respectively. However, September has lower precipitation, with 29 mm (1.1 in) over 10 days, while July sees higher rainfall of 43 mm (1.7 in) spread across 12 days. Additionally, September's humidity is marginally higher at 78%, compared to July's 75%. For more detailed information, you can check Saint Pierre weather in July.
In September, the weather shows a slight warming trend compared to August, with minimum temperatures starting at 18°C (65°F) and average highs reaching 26°C (79°F). In contrast, August features slightly cooler temperatures, with a minimum of 17°C (63°F) and a maximum of 25°C (78°F). While both months experience humidity levels around the mid-70s to high 70s, September has a slightly higher average at 78%, compared to August's 74%. Precipitation is lower in September, with 29 mm (1.1 in) over 10 days, compared to August's 35 mm (1.4 in) across 9 days, making September a somewhat drier month overall. For more details on the weather in August, you can visit Saint Pierre weather in August.
In September, the weather typically features a minimum temperature of 18°C (65°F) and an average of 22°C (71°F), reaching a maximum of 26°C (79°F). The month sees around 29 mm (1.1 in) of precipitation spread over 10 days, with humidity levels at 78%.
As October rolls in, the temperatures warm slightly, with a minimum of 19°C (66°F), an average of 23°C (74°F), and a maximum of 27°C (81°F). However, the month also brings increased precipitation, totaling 41 mm (1.6 in) across 12 days, while humidity remains relatively stable at 77%. For more specific weather details, you can check out Saint Pierre weather in October.
In comparing the weather between September and November, both months feature similar minimum temperatures around 18°C (65°F) to 18°C (66°F), indicating a relatively stable base temperature. However, November shows a noticeable increase in average temperatures, rising from 22°C (71°F) in September to 24°C (76°F), with maximum temperatures also climbing from 26°C (79°F) to 28°C (83°F). Additionally, November experiences higher precipitation, with 63 mm (2.5 in) over 15 days compared to September's 29 mm (1.1 in) over 10 days, suggesting a wetter month. Despite the increased rainfall, the humidity remains constant in both months at 78%, providing a consistent tropical feel. For more detailed insights on November weather, check out Saint Pierre weather in November.
In comparing the weather between September and December, we see notable differences in temperature, precipitation, and humidity. September typically has milder temperatures, with a minimum of 18°C (65°F) and a maximum of 26°C (79°F), whereas December experiences warmer conditions, with minimum temperatures rising to 22°C (73°F) and maximums reaching 29°C (85°F). Additionally, December is characterized by significantly higher precipitation, totaling 113 mm (4.5 in) over 23 days, compared to September's 29 mm (1.1 in) across just 10 days. Humidity levels also increase slightly from 78% in September to 81% in December, contributing to a more tropical feel. For more detailed information, you can visit Saint Pierre weather in December.
As September unfolds in Saint Pierre, the weather transitions into a delightful spring-like atmosphere, setting it apart from the warmer summer months. With an average temperature of around 22°C, outdoor enthusiasts will appreciate the mild conditions, ideal for exploring the region. While a slight bump in precipitation is experienced, with about 10 days of rain, the humidity hovers at a comfortable 78%, creating a refreshing environment. This month strikes a perfect balance between warm and cool, marking an inviting time to experience the vibrant charm of Saint Pierre. For more insights, visit Saint Pierre Climate.