September Weather in Beau Vallon, Mauritius

Last updated: August 21, 2025

September in Beau Vallon, Mauritius offers a delightful escape with mild temperatures ranging from a pleasant 18°C (65°F) to a maximum of 26°C (78°F), averaging around 22°C (71°F). This transitional month experiences 40 mm of rainfall over approximately 14 days, accentuating the lush beauty of the island while maintaining an inviting atmosphere for exploration. With a humidity level of 80%, visitors can expect a tropical ambiance that enhances the allure of this stunning destination. Whether you're lounging on the beach or embarking on local adventures, September promises a captivating experience in Beau Vallon.

September Temperature in Beau Vallon

In September, Beau Vallon, Mauritius, enjoys a delightful transition as temperatures begin to rise from the cooler winter months. With nighttime lows around 18°C (65°F), the days become pleasantly warmer, averaging 22°C (71°F) and peaking at 26°C (78°F). This month marks a noticeable shift from the chill of August, as the region gradually welcomes back the warmth of early spring. The comfortable climate makes September an inviting time for travelers looking to bask in the sun while enjoying outdoor activities along the stunning coastline. As the temperatures rise slightly, the allure of Mauritius becomes even harder to resist.

September Weather in Beau Vallon: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Beau Vallon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Beau Vallon, 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).
JanFebMarAprMayJunJulAugSepOctNovDec797979777472707071737578
Data source: Temperature data for Beau Vallon 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 Beau Vallon

In September, Beau Vallon experiences a noticeable dip in precipitation, recording just 40 mm (1.6 in) of rain over 14 days. This month marks a transition into the drier period of the year, as the rainfall significantly decreases from the heavier downpours of the earlier months. With an average of 48 mm less rainfall than August, September's weather offers a more tranquil climate, paving the way for the milder, drier days ahead. As the island moves towards October, it hints at a gradual increase in precipitation again, but for now, September provides a brief respite from the tropical showers that define the preceding months.

September Precipitation Trends in Beau Vallon

The chart displays monthly precipitation patterns in Beau Vallon, 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 Beau Vallon, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec16018820214975576950404671132
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Beau Vallon

September in Beau Vallon, Mauritius, showcases a comfortable 80% humidity, continuing a trend seen throughout the year. After the peak humidity months of January and February, which reach 82% and 86% respectively, the humidity gradually decreases during the cooler mid-year months of June, July, and August, where it dips to a refreshing 76%. As the island transitions into the latter part of the year, humidity slightly rises again, indicating a return to the tropical warmth synonymous with Mauritius. This delicate balance of moisture not only contributes to the region's lush landscapes but also enhances its inviting atmosphere, making September an appealing time for visitors seeking to enjoy the beauty of this island paradise.

September Average Humidity in Beau Vallon

This chart illustrates the average monthly humidity levels in Beau Vallon, 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 Beau Vallon is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%86%82%84%80%76%77%76%80%79%81%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Beau Vallon

In September, Beau Vallon, Mauritius, experiences a significant UV Index of 11, categorized as extreme, which means a burn time of only 10 minutes. This level is part of a noticeable trend, where the UV Index remains consistently high from January through April, peaking at a staggering 16 in the early months, before gradually tapering off during the mid-year. However, as the island transitions into the later months, values between 10 and 14 continue to dominate, urging both locals and visitors to stay vigilant about sun protection. For more detailed insights, check out the Beau Vallon UV Index.

Maximum UV Index Levels in Beau Vallon for September

The chart shows the monthly maximum UV Index (UVI) for Beau Vallon 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 Beau Vallon typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec161614129781011131415
Data source: Beau Vallon 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 Beau Vallon

September in Beau Vallon, Mauritius, basks in 330 hours of radiant sunshine, continuing a delightful trend of bright days as the island transitions into the warmer months. This month stands out for maintaining consistency with August's sunny disposition while hinting at the impending peak of sunshine in October, which boasts an impressive 364 hours. As the sun-drenched days stretch longer, visitors can soak in the vibrant atmosphere, making September an ideal time for beach lovers and adventurers alike, ready to enjoy the captivating allure of this tropical paradise. Notably, the gradual increase in daylight hours from June to September signifies a lively shift towards the summer season, promising more opportunities for unforgettable experiences under the sun.

Monthly Sunshine Duration in Beau Vallon: September Highlighted

The September sunshine duration represents the total number of hours Beau Vallon 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: Beau Vallon September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Beau Vallon During September

In Beau Vallon, Mauritius, September offers a promising 55% chance of sunny weather, making it a delightful time for travelers seeking sun-soaked adventures. As the year progresses, there’s a noticeable trend of fluctuating sun opportunities, with November leading the way at 65%, while April dips to a mere 26%. The months surrounding September, such as May and October, also showcase favorable conditions, with sun chances around 58% and 53% respectively. This consistent sunshine pattern from late winter through to early spring makes September an excellent choice for those looking to enjoy the beauty of Mauritius under clear skies.

Percentage of Sunny Days in September in Beau Vallon

The chart illustrates the percentage of sunny days in Beau Vallon 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 Beau Vallon experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%47%47%26%58%51%54%53%55%54%65%48%
Data source: Beau Vallon September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Beau Vallon in September

In September, Beau Vallon, Mauritius enjoys approximately 11 hours of daylight, marking a transition period as summer approaches. Throughout the year, daylight duration exhibits a gentle ebb and flow, starting at a peak of 13 hours in January and November. As the months progress towards the cooler winter, daylight gradually wanes to a low of 10 hours in June. By August, daylight stabilizes at 11 hours, which carries into September. This consistent duration not only makes September an inviting month for outdoor activities but also hints at the gradual shift back to longer days in October and November, as the island prepares to bask in more sunlight once again.

Average Daylight Hours in Beau Vallon for September

The chart illustrates the variation in daylight duration in Beau Vallon 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 45m12h 10m11h 35m11h 7m10h 53m11h 1m11h 25m11h 58m12h 33m13h 4m13h 19m
Data source: Beau Vallon daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Beau Vallon

As September rolls into Beau Vallon, Mauritius, the winds begin to pick up, with an average speed of 7.3 m/s (16 mph), marking a notable increase from the more languid summer months. This slight escalation follows a trend established during the previous winter months, where July and June boasted their peak winds at 8.1 m/s (18 mph) and 7.0 m/s (16 mph), respectively. With September’s breezy atmosphere, beachgoers and water sports enthusiasts can enjoy the invigorating winds, setting the stage for an exciting transition into October, where speeds gently decline to 5.6 m/s (13 mph). Overall, the winds of September offer a refreshing blend of summer warmth and the crispness of approaching autumn, captivating all who experience this vibrant coastal paradise.

Average September Wind Speed in Beau Vallon

The chart displays monthly wind speed patterns in Beau Vallon, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.55.44.35.75.47.08.16.47.3 m/s5.64.65.0
Data source: Beau Vallon September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Beau Vallon Compares to Other Months

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

September and January present two distinct weather profiles. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (78°F), with an average of 22°C (71°F). The month sees about 40 mm (1.6 in) of precipitation spread over 14 days, while humidity hovers around 80%. In contrast, January brings warmer temperatures, with a minimum of 22°C (72°F) and a maximum of 30°C (85°F), averaging 26°C (79°F). However, it also experiences significantly higher rainfall, totaling approximately 160 mm (6.3 in) across 23 days, alongside a humidity level of 82%. For more detailed information, check out Beau Vallon weather in January.

When comparing the weather in September and February, there are notable differences in temperature, precipitation, and humidity. September offers milder temperatures, with a minimum of 18°C (65°F) and an average of 22°C (71°F), reaching a max of 26°C (78°F). In contrast, February brings warmer conditions, featuring a minimum of 23°C (74°F) and an average of 26°C (79°F), peaking at 29°C (85°F). Additionally, February experiences significantly higher precipitation, with 188 mm (7.4 in) falling over 24 days, compared to September's 40 mm (1.6 in) over 14 days. The humidity also rises slightly in February, averaging 86% compared to 80% in September. For more detailed weather information, you can check Beau Vallon weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (78°F), with an average of 22°C (71°F) and relatively low precipitation of 40 mm (1.6 in) spread over 14 days. The humidity is also significant, averaging around 80%. In contrast, March is considerably warmer, with minimum temperatures starting at 23°C (73°F) and maxing out at 29°C (84°F), averaging 26°C (79°F). However, March experiences much higher rainfall, with 202 mm (7.9 in) over 26 days, and a slight increase in humidity to 82%. For more detailed weather insights, you can visit Beau Vallon weather in March.

When comparing the weather in September and April, notable differences emerge. September typically features milder temperatures, with averages ranging from a minimum of 18°C (65°F) to a maximum of 26°C (78°F), while April is warmer with temperatures averaging between 22°C (71°F) and 28°C (83°F). Furthermore, April experiences significantly higher precipitation, totaling 149 mm (5.9 in) over 25 days, compared to September's 40 mm (1.6 in) over just 14 days. Humidity levels are relatively similar, hovering around 80% in September and slightly higher at 83% in April. For more detailed information, check out Beau Vallon weather in April.

In comparing the weather of September and May, we see that May generally presents slightly warmer temperatures, with a minimum of 20°C (68°F) and an average of 24°C (75°F), compared to September's minimum of 18°C (65°F) and an average of 22°C (71°F). Both months experience high humidity levels at 80%, but May is notably wetter, receiving 75 mm (3.0 in) of precipitation over 17 days, while September has only 40 mm (1.6 in) over 14 days. For more detailed insights, you can check Beau Vallon weather in May.

In comparing the weather of September and June, we see that both months have similar average temperatures, hovering around 22°C (72°F). However, September tends to be slightly cooler with a minimum of 18°C (65°F) compared to June's minimum of 19°C (67°F). Both months exhibit comparable maximum temperatures of 26°C (78°F), but June experiences higher precipitation levels at 57 mm (2.3 in) over 17 days, whereas September has 40 mm (1.6 in) over 14 days. Additionally, humidity is slightly higher in September at 80%, compared to 76% in June. For more detailed weather specifics, visit Beau Vallon weather in June.

In comparing the weather between September and July, we observe that September experiences slightly warmer average temperatures, with a minimum of 18°C and a maximum of 26°C, compared to July's maximum of 25°C. Both months have similar minimum temperatures, but July tends to be a bit cooler on average, registering at 21°C. Precipitation levels are also noteworthy; July has higher rainfall at 69 mm over 19 days, while September has 40 mm over 14 days, indicating that September is generally drier. Humidity levels are fairly comparable, with September at 80% and July at 77%. For more detailed information, you can refer to Beau Vallon weather in July.

In comparing the weather of September and August, we see that September is slightly warmer with an average temperature of 22°C (71°F) compared to August's 21°C (70°F). The maximum temperatures also rise to 26°C (78°F) in September, while August peaks at 25°C (77°F). Precipitation levels drop in September to 40 mm (1.6 in) over 14 days, whereas August experiences a bit more rainfall at 50 mm (2.0 in) over 13 days. Additionally, September has a higher humidity level at 80%, compared to August's 76%. For more specific details about August weather, you can visit Beau Vallon weather in August.

September and October present a gradual transition in weather, with October generally being slightly warmer. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 26°C (78°F), with an average of 22°C (71°F) and humidity levels around 80%. October sees a slight increase, with minimum temperatures rising to 19°C (67°F) and maximum temperatures reaching 27°C (80°F), while the average temperature hovers at 23°C (73°F). Precipitation remains relatively consistent between the two months, with September recording 40 mm (1.6 in) and October slightly higher at 46 mm (1.8 in), both experiencing rainfall on approximately 14 days. For more detailed weather insights, you can check Beau Vallon weather in October.

In September, the weather features a mild temperature range with a minimum of 18°C (65°F) and an average of 22°C (71°F), peaking at 26°C (78°F). This month experiences 40 mm (1.6 in) of precipitation over 14 days, with humidity levels around 80%. By November, temperatures rise slightly, with a minimum of 19°C (66°F), averaging 24°C (75°F) and reaching a maximum of 28°C (83°F). However, November is wetter, receiving 71 mm (2.8 in) of precipitation over 15 days and maintaining a similar humidity level of 81%. For more details, you can check the Beau Vallon weather in November.

In September, the weather is generally milder with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 26°C (78°F). This month sees about 40 mm (1.6 in) of precipitation spread over 14 days, accompanied by a humidity level of 80%. Conversely, December brings warmer conditions, with temperatures averaging between 22°C (72°F) and 29°C (85°F). However, it is also significantly wetter, with 131 mm (5.2 in) of rainfall occurring over 24 days and a slightly higher humidity of 82%. For more detailed information about December weather conditions, you can check Beau Vallon weather in December.

Compare Beau Vallon's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Beau Vallon

As September unfolds in Beau Vallon, the weather showcases a delightful balance between moderately warm temperatures and refreshing breezes, marking a pleasant transition from the winter season. With averages hovering around 22°C, the month is characterized by slightly cooler days compared to the upcoming summer months, inviting travelers to explore the picturesque coastline. While the humidity remains high at 80%, occasional rainfall—spanning about half the month—brings life to the lush landscapes, creating a serene atmosphere. This blend of warm days and intermittent showers sets September apart from the hotter, drier months that follow, making it an ideal time for visitors seeking a more tranquil escape. For more about what to expect year-round, visit Beau Vallon Climate.