September Weather in Petite Riviere, Mauritius

Last updated: August 21, 2025

September in Petite Riviere, Mauritius offers a delightful climate characterized by pleasant temperatures and moderate humidity. With maximum temperatures reaching a comfortable 26°C (79°F) and an average of 22°C (71°F), this month is ideal for outdoor activities. Nighttime brings cooler nights, with lows dipping to 18°C (65°F), perfect for cozy evenings. Although the region experiences around 29 mm (1.1 in) of precipitation over about 10 days, these brief showers often provide refreshing breaks in the sunshine. With humidity hovering at 78%, visitors can enjoy the lush surroundings while basking in the warmth of early spring, making it a wonderful time to explore the natural beauty of Mauritius.

September Temperature in Petite Riviere

September in Petite Riviere, Mauritius marks a gentle transition as the region enjoys mild and pleasant temperatures. With nighttime lows around 18°C (65°F) and daily highs peaking at 26°C (79°F), the weather is both comfortable and inviting. The average temperature settles at 22°C (71°F), offering a refreshing escape from the cooler months of July and August. As spring begins to bloom, this month hints at the warmth to come, making it an ideal time for outdoor adventures and leisurely strolls along the picturesque coast. Overall, September embodies a delightful balance of warmth and coolness, perfect for both relaxation and exploration.

September Weather in Petite Riviere: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Petite Riviere, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petite Riviere, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec797979777572717071737578
Data source: Temperature data for Petite Riviere generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Petite Riviere

In September, Petite Riviere, Mauritius experiences a noticeable decline in precipitation, with only 29 mm (1.1 in) of rain, accompanied by just 10 rainy days. This marks the tail end of the dry season, where the island's lush vegetation begins to benefit from the gradual increase in moisture. Compared to the preceding months, September's rainfall is significantly lower than the peaks seen in January through March, which consistently recorded over 170 mm of rain. This trend reflects a shift towards drier conditions that persist through the heart of the dry season, offering a unique opportunity for locals and visitors alike to enjoy the island’s natural beauty with fewer interruptions from rain.

September Precipitation Trends in Petite Riviere

The chart displays monthly precipitation patterns in Petite Riviere, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Petite Riviere, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec17218117711256404335294163113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Petite Riviere

In September, Petite Riviere, Mauritius, experiences a moderate humidity level of 78%, which marks a slight decrease from the peak of 86% in February. This gradual decline in humidity is part of a broader trend observed as the year progresses, with levels fluctuating between 74% and 83% during the cooler months from June to August. Following the transition into spring, September’s humidity begins to rise again, hinting at the approaching warmth of October. Overall, the humidity in Petite Riviere tends to remain relatively high throughout the year, creating a lush and vibrant environment that characterizes this tropical paradise.

September Average Humidity in Petite Riviere

This chart illustrates the average monthly humidity levels in Petite Riviere, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Petite Riviere is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%86%82%83%80%74%75%74%78%77%78%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Petite Riviere

In September, the UV Index in Petite Riviere, Mauritius registers at 11, placing it in the extreme exposure category with a burn time of just 10 minutes. This value marks a slight increase from the previous month and sets the tone for the transition into the late spring season. As the UV Index continues to hover in the extreme range, with only a gradual decline observed as the months progress, it underscores the importance of sun safety precautions during this time. Whether you're lounging on the beach or hiking through lush landscapes, staying vigilant against the sun’s rays is crucial. For more detailed insights, check out the Petite Riviere UV Index.

Maximum UV Index Levels in Petite Riviere for September

The chart shows the monthly maximum UV Index (UVI) for Petite Riviere in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Petite Riviere typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781011131415
Data source: Petite Riviere September UVI data generated using information from the Copernicus Climate Change Service.

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.

September Sunshine in Petite Riviere

September in Petite Riviere, Mauritius, enjoys a delightful 330 hours of sunshine, perfectly aligning with the island's pattern of abundant light as it transitions from the cooler winter months. As we move from the slightly lower sunshine hours of June and July, September signals a gradual return to brighter days, echoing the summer-like vibrance that begins to flourish. This trend continues into October, which boasts an impressive 364 hours, setting the stage for the island's warm, sun-soaked months ahead. With each passing day in September, the sun casts a golden glow on this tropical paradise, inviting visitors to relish in its scenic beauty and enjoy the lengthy beach days.

Monthly Sunshine Duration in Petite Riviere: September Highlighted

The September sunshine duration represents the total number of hours Petite Riviere experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec303h330h346h316h321h298h311h325h330h364h372h391h
Data source: Petite Riviere September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Petite Riviere During September

In September, Petite Riviere, Mauritius enjoys a notable 61% chance of sunny weather, positioning it as a delightful transition from the more humid winter months. This month maintains a consistent level of sunshine comparable to July and August, both hovering in the low 60s, indicating a favorable trend for outdoor activities and relaxation by the beach. As the brightness begins to recover after the drier spells of winter, September promises a pleasant mix of warm temperatures and sunny days, setting the stage for the more radiant months ahead. With a likelihood of clear skies on the rise, it's an ideal time to explore the picturesque landscapes and vibrant culture of this idyllic island.

Percentage of Sunny Days in September in Petite Riviere

The chart illustrates the percentage of sunny days in Petite Riviere throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Petite Riviere experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec56%50%49%28%65%56%61%58%61%58%66%50%
Data source: Petite Riviere September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Petite Riviere in September

In September, Petite Riviere, Mauritius experiences a delightful 11 hours of daylight, continuing the consistent trend established in the previous months. As summer draws to a close, daylight slowly transitions from the longer days of January's 13 hours and February's 12 hours towards the shorter daylight periods of winter. The number of daylight hours remains stable for September, mirroring the previous month of August. This equilibrium hints at a gradual shift towards the brighter, longer days of October, which will soon follow. Overall, the daylight duration subtly reflects the island's tropical climate, providing an appealing backdrop for outdoor activities throughout the month.

Average Daylight Hours in Petite Riviere for September

The chart illustrates the variation in daylight duration in Petite Riviere throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 11m12h 44m12h 10m11h 36m11h 8m10h 54m11h 1m11h 26m11h 58m12h 33m13h 3m13h 19m
Data source: Petite Riviere daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Petite Riviere

As the calendar turns to September, Petite Riviere, Mauritius, experiences a noticeable increase in wind activity, with an average wind speed reaching 6.5 m/s (15 mph). This marks a significant shift from the gentler breezes of earlier months, especially compared to the softer winds of March, which averaged just 3.9 m/s (9 mph). The conditions in September are more akin to the breezy charm of July, which boasts the year's highest winds at 7.3 m/s (16 mph). Overall, September serves as a transition point, blending the refreshing gusts of winter with the summery warmth of late spring, making it an ideal time for those seeking both vibrant energy and delightful weather along the coast.

Average September Wind Speed in Petite Riviere

The chart displays monthly wind speed patterns in Petite Riviere, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.95.03.95.14.96.37.35.76.5 m/s5.14.24.8
Data source: Petite Riviere September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Petite Riviere Compares to Other Months

Weather in Petite Riviere varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Petite Riviere, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in September and January, we see a notable shift in temperature and precipitation patterns. September tends to be milder, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 26°C (79°F) and a total precipitation of 29 mm (1.1 in) over about 10 days. In contrast, January is warmer, with minimum temperatures starting at 21°C (71°F) and peaking at 30°C (87°F), but it also experiences significantly higher rainfall, totaling 172 mm (6.8 in) over 22 days. The humidity reflects a slight increase from September's 78% to January's 82%, contributing to a more humid atmosphere. For more detailed information, you can check Petite Riviere weather in January.

Comparing the weather between September and February reveals significant differences. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (79°F), with an average of 22°C (71°F). The month sees relatively low precipitation at 29 mm (1.1 in) over about 10 rainy days and a humidity level of 78%. In contrast, February experiences warmer conditions, with minimum temperatures around 23°C (74°F) and maximums reaching 30°C (86°F), averaging 26°C (79°F). February is notably wetter, recording 181 mm (7.1 in) of precipitation spread over 24 days, along with increased humidity at 86%. For more detailed insights, you can explore Petite Riviere weather in February.

When comparing the weather in September and March, notable differences emerge in temperature and precipitation. September experiences milder temperatures with a minimum of 18°C (65°F) and a maximum of 26°C (79°F), while March is warmer, with a minimum of 22°C (72°F) and a maximum of 30°C (86°F). In terms of precipitation, September is relatively dry with 29 mm (1.1 in) over 10 days, whereas March sees significantly more rainfall at 177 mm (7.0 in) across 26 days. Humidity levels are similarly high in both months, with September at 78% and March at 82%. For more detailed information, check out Petite Riviere weather in March.

When comparing the weather in September and April, we see some notable differences. September typically experiences milder temperatures, with a minimum of 18°C (65°F) and an average of 22°C (71°F), while April is warmer, with a minimum temperature of 21°C (71°F) and an average of 25°C (78°F). Precipitation also varies significantly; September sees about 29 mm (1.1 in) over approximately 10 days, whereas April is much wetter with 112 mm (4.4 in) spread across 23 days. Additionally, humidity levels are slightly higher in April at 83%, compared to September’s 78%. For more detailed insights, you can explore Petite Riviere weather in April.

In comparison to May, September offers slightly cooler temperatures, with a minimum of 18°C (65°F) and an average of 22°C (71°F) compared to May's 20°C (68°F) minimum and 24°C (75°F) average. While both months experience relatively high humidity, September's average humidity is 78%, only slightly lower than May's 80%. Interestingly, September has less precipitation, receiving 29 mm (1.1 in) over about 10 days, whereas May sees more rainfall at 56 mm (2.2 in) over 13 days. For more details on the weather during May, check out Petite Riviere weather in May.

In comparing the weather between September and June, we find that both months share similar average temperatures, hovering around 22°C (72°F). However, September tends to be slightly cooler in the mornings, with a minimum temperature of 18°C (65°F), compared to June's minimum of 19°C (67°F). Precipitation levels are notably different, with June experiencing a higher total of 40 mm (1.6 in) over 11 days, while September has only 29 mm (1.1 in) of rain over 10 days. Humidity remains relatively high in both months, with September at 78% and June at 74%, making both months feel quite tropical. For a more detailed analysis, you can check the Petite Riviere weather in June.

In September, the weather is slightly warmer with an average temperature of 22°C (71°F), compared to July's average temperature of 21°C (71°F). While both months share the same minimum temperature of 18°C (65°F), July tends to see a bit more rainfall, with 43 mm (1.7 in) of precipitation over 12 days, compared to September's 29 mm (1.1 in) over 10 days. Additionally, September's humidity is a touch higher at 78%, versus July's 75%. For a more detailed look at July's conditions, check out Petite Riviere weather in July.

In September, the weather shows a slight increase in both minimum and maximum temperatures compared to August, with lows of 18°C (65°F) and highs reaching 26°C (79°F). The average temperature remains steady at 22°C (71°F) for both months. Although September experiences slightly less precipitation at 29 mm (1.1 in) over 10 days, humidity levels are a bit higher at 78% compared to August's 74%. Overall, September tends to feel a touch warmer and more humid than August, while still maintaining similar average temperatures. For more details about August weather, you can check Petite Riviere weather in August.

In September, temperatures averaged around 22°C (71°F), with a minimum of 18°C (65°F) and a maximum of 26°C (79°F). The month experienced a total precipitation of 29 mm (1.1 in) over 10 days, and humidity levels were high at 78%. In contrast, October sees a slight increase in temperatures, averaging 23°C (74°F), with a minimum of 19°C (66°F) and a maximum of 27°C (81°F). However, it also brings more rain, totaling 41 mm (1.6 in) across 12 days, while maintaining slightly lower humidity at 77%. For a closer look at the weather specifics, check out the detailed forecast here: Petite Riviere weather in October.

In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (79°F), with an average of 22°C (71°F). The month sees about 29 mm (1.1 in) of precipitation over 10 days, while humidity remains relatively high at 78%. In contrast, November experiences slightly warmer temperatures, with a minimum of 18°C (66°F), an average of 24°C (76°F), and a maximum of 28°C (83°F). However, it also brings more rainfall, totaling 63 mm (2.5 in) over 15 days, yet maintains the same humidity of 78%. For a more detailed comparison of conditions in November, you can visit Petite Riviere weather in November.

September and December showcase notable contrasts in weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (79°F), with an average of 22°C (71°F). The month sees moderate humidity at 78% and experiences about 29 mm (1.1 in) of rainfall over 10 days. In contrast, December brings warmer conditions with temperatures that range from a minimum of 22°C (73°F) to a maximum of 29°C (85°F), averaging 26°C (78°F). This month is also characterized by significantly higher precipitation, totaling 113 mm (4.5 in) spread over 23 days and increased humidity at 81%. For more detailed insights into December's weather, you can explore Petite Riviere weather in December.

Compare Petite Riviere's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Petite Riviere

As September rolls in, Petite Riviere experiences a delightful transition into spring, marked by mild temperatures that average around 22°C. While the humidity remains relatively high at 78%, it's often more pleasant compared to the sweltering heat of the summer months. This period typically sees a slight increase in precipitation, with about ten days of light showers, refreshing the landscape and setting the stage for lush growth. Overall, September offers a wonderful blend of warmth and moisture, making it a unique time in Petite Riviere's climate narrative. For a more detailed overview, check out Petite Riviere Climate.