September Weather in Souillac, Mauritius

Last updated: August 21, 2025

September in Souillac, Mauritius ushers in a pleasant transition as temperatures begin to cool, with an average high reaching 25°C (78°F) and a comfortable low of 18°C (65°F). The month sees a moderate average temperature of 22°C (71°F), creating ideal conditions for outdoor exploration. Although precipitation makes its presence felt with around 33 mm (1.3 in) over 12 days, this does little to overshadow the 78% humidity, which contributes to the lush, vibrant landscapes characteristic of this coastal paradise. Visitors can expect a blend of warm days tempered by refreshing breezes, making September an inviting time to experience the beauty of Souillac.

September Temperature in Souillac

In September, Souillac, Mauritius begins to transition from the cooler winter months into a mild spring climate. With minimum temperatures around 18°C (65°F) and a comfortable average of 22°C (71°F), the island offers a pleasant reprieve from the chillier days of August. As the month progresses, the maximum temperature reaches a cozy 25°C (78°F), making it an ideal time for outdoor activities and explorations. Compared to the preceding months, which saw lows dipping into the teens, September's warmth signals the return of balmy weather, setting the stage for the more tropical conditions that follow in October and beyond.

September Weather in Souillac: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Souillac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Souillac, 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 Souillac 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 Souillac

In September, the weather in Souillac, Mauritius begins to shift, bringing a noticeable reduction in rainfall. With only 33 mm (1.3 in) of precipitation across 12 days, it marks a significant decline from the heavier rains of the earlier months. This trend is part of a broader season where the island transitions from its wetter months; for instance, January and February see 154 mm and 176 mm respectively. As the island enjoys clearer skies, the diminishing rainfall aligns well with the 10 days of rain in August, suggesting a gradual shift toward drier weather ahead. This light sprinkling in September, compared to the earlier months, sets a pleasant tone, allowing visitors to appreciate the lush landscapes without the frequent interruptions of rain.

September Precipitation Trends in Souillac

The chart displays monthly precipitation patterns in Souillac, 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 Souillac, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec15417617613469516343334262120
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Souillac

In September, Souillac, Mauritius experiences a humidity level of 78%, marking a slight dip from the peak of 86% in February. This month effectively transitions the coastal climate, as it begins to shift from the higher humidity levels of late summer into the more comfortable atmosphere of early autumn. The humidity remains consistent, hovering around the mid-78% range throughout November, indicating a stable and pleasant environment for visitors and locals alike. Overall, the trend suggests a gradual decline in humidity from the muggy summer months, offering a refreshing reprieve as the year progresses towards its end.

September Average Humidity in Souillac

This chart illustrates the average monthly humidity levels in Souillac, 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 Souillac 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 Souillac

In September, Souillac, Mauritius, experiences a UV Index of 11, placing it in the extreme exposure category with a burn time of just 10 minutes. This marks a slight increase from August's UV Index of 10 but maintains the trend of high UV levels observed throughout the year. The data illustrates a consistent pattern of extreme UV exposure from January through April, with a seasonal dip in May and June, before climbing back up during the latter half of the year. This gradual rise underscores the necessity for sun safety practices, as conditions can turn hazardous quickly. For more detailed insights, visit Souillac UV Index.

Maximum UV Index Levels in Souillac for September

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

As summer transitions into spring in September, Souillac, Mauritius, emerges as a captivating destination bathed in 330 hours of glorious sunshine. This enchanting month mirrors the radiant light experienced from February to October, illustrating a trend of consistently high sunlight hours that peaks in December with 391 hours. September stands out for its comfortable climate, comfortably bridging the warm summer months and the energetic onset of spring. Travelers can revel in the abundance of sunny days, perfect for exploring the island's stunning beaches and lush landscapes, all while enjoying the leisurely pace that Mauritius offers during this vibrant time of year.

Monthly Sunshine Duration in Souillac: September Highlighted

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

Chance of Sun in Souillac During September

In Souillac, Mauritius, the month of September offers a promising 58% chance of sunny weather, closely mirroring the sunny disposition of January. As we transition from the wetter months of April and May, which see a drop to 27% before rebounding to the more favorable 62% in May, September’s sunshine levels remain consistent with patterns seen earlier and later in the year. The sunny outlook indicates a gradual recovery as the rainy season wanes, setting the stage for delightful days ahead. Notably, November peaks at 68%, suggesting that while September is a great choice for sun-seekers, the following months hold even greater promise for those looking to bask in warm, sunny skies.

Percentage of Sunny Days in September in Souillac

The chart illustrates the percentage of sunny days in Souillac 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 Souillac experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%51%48%27%62%53%56%55%58%56%68%50%
Data source: Souillac September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Souillac in September

As summer fades into the heart of September in Souillac, Mauritius, the island enjoys a steady 11 hours of daylight. This consistency marks a transition from the longer, sun-kissed days of January and February, which boast up to 13 hours of daylight. By March and April, the light begins to wane slightly, dipping to 12 hours and then settling at 11 hours in May and June. As September unfolds, it reflects the gentle balance of past and future seasons, leading into the slightly brighter months ahead in October and November. Overall, the rhythms of daylight in Souillac illustrate a seamless glide between the warm embrace of summer and the mellow charm of autumn.

Average Daylight Hours in Souillac for September

The chart illustrates the variation in daylight duration in Souillac throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 12m12h 45m12h 10m11h 35m11h 7m10h 53m11h11h 25m11h 58m12h 33m13h 4m13h 20m
Data source: Souillac daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Souillac

September in Souillac, Mauritius, welcomes a refreshing breeziness with an average wind speed of 7.2 m/s (16 mph), making it one of the windiest months of the year. Following the seasonal uptick in wind during the cooler winter months of June and July—where speeds peak at 6.9 m/s and 8.0 m/s respectively—September provides a delightful transition into spring with invigorating gusts. As summer approaches, the wind subsides slightly in October, settling back to 5.5 m/s (12 mph), offering a brief respite before the calmer months ahead. This month stands out not only for its breezy charm but also as a bridge between the lively winds of winter and the soothing stillness of summer, capturing the essence of a South African spring.

Average September Wind Speed in Souillac

The chart displays monthly wind speed patterns in Souillac, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.55.44.45.75.46.98.06.27.2 m/s5.54.75.3
Data source: Souillac September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Souillac Compares to Other Months

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

September and January present distinct weather experiences. In September, temperatures range from a mild 18°C (65°F) at night to a pleasant average of 22°C (71°F) during the day, with highs reaching 25°C (78°F). The month sees 33 mm (1.3 in) of precipitation over 12 days, resulting in a humidity level of 78%. In contrast, January is warmer, with nighttime lows of 22°C (71°F) and daytime averages reaching 26°C (79°F), peaking at 30°C (86°F). However, it also brings significantly more rain, with 154 mm (6.0 in) falling over 21 days and a humidity of 82%. For more details on the weather in January, check out Souillac weather in January.

When comparing the weather in September and February, notable differences emerge. In September, temperatures typically range from a low of 18°C (65°F) to a maximum of 25°C (78°F), with an average of 22°C (71°F). This month sees relatively lower humidity at 78% and only 33 mm (1.3 in) of precipitation over approximately 12 days. In contrast, February is considerably warmer, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 30°C (86°F), averaging around 26°C (79°F). This month experiences higher humidity at 86% and significantly more rainfall, accumulating 176 mm (6.9 in) over about 24 days. For more details on February weather, check out Souillac weather in February.

In September, the weather is milder with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 25°C (78°F), and an average of 22°C (71°F). It tends to be relatively drier, with only 33 mm (1.3 in) of precipitation over 12 days and humidity at 78%. In contrast, March experiences warmer temperatures, with a minimum of 22°C (73°F), an average of 26°C (79°F), and a maximum of 30°C (86°F). Moreover, March brings significantly higher rainfall, totaling 176 mm (6.9 in) across 25 rainy days, coupled with slightly higher humidity levels at 82%. For more details on March weather, check out Souillac weather in March.

When comparing the weather in September and April, notable differences emerge. September features milder temperatures, with averages around 22°C (71°F) and a maximum of 25°C (78°F), while April sees warmer conditions, with average temperatures peaking at 25°C (78°F) and highs reaching 29°C (84°F). Precipitation levels in April are significantly higher, totaling 134 mm (5.3 in) and occurring over 24 days, compared to September's 33 mm (1.3 in) over just 12 days. Additionally, April experiences slightly higher humidity at 83%, compared to September's 78%. For more detailed insights, visit Souillac weather in April.

In comparing the weather between September and May, we observe notable differences in both temperature and precipitation. September features a mild temperature range, with minimums around 18°C (65°F) and maximums reaching 25°C (78°F), while May warms up slightly more, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 28°C (82°F). Additionally, May experiences higher precipitation, averaging 69 mm (2.7 in) over 14 days, compared to September's 33 mm (1.3 in) across 12 days. Humidity levels are relatively similar, with September at 78% and May slightly higher at 80%. For more detailed information about May weather, you can check Souillac weather in May.

When comparing the weather conditions in September and June, we notice that both months have similar average temperatures, hovering around 22°C (72°F), but there are subtle differences. In June, the minimum temperature is slightly higher at 19°C (67°F), while September starts at a warmer 18°C (65°F). The maximum temperature remains consistent, with June peaking at 26°C (79°F) and September at 25°C (78°F). Precipitation is notably higher in June, with 51 mm (2.0 in) over 15 days compared to September’s 33 mm (1.3 in) across 12 days. Additionally, September experiences a higher humidity level of 78%, compared to June’s 74%. For further details on the weather in June, you can check Souillac weather in June.

In comparing the weather between September and July, it is notable that both months experience similar temperature ranges, with minimums around 18°C (65°F) and maximums peaking at 25°C (78°F). However, September tends to be slightly warmer on average at 22°C (71°F) compared to July's average of 21°C (71°F). Additionally, September experiences less rainfall, with only 33 mm (1.3 in) over 12 days, while July has more substantial precipitation at 63 mm (2.5 in) across 16 days. Humidity levels are also higher in September at 78%, compared to July's 75%. For more detailed insights about July weather, you can refer to Souillac weather in July.

In comparing the weather between September and August, we see that both months have similar maximum temperatures, reaching up to 25°C (78°F). However, September has a slightly higher average temperature of 22°C (71°F) compared to August's average of 21°C (71°F). Notably, September experiences more precipitation over 12 days, totaling 33 mm (1.3 in), while August has 43 mm (1.7 in) of precipitation over just 10 days. Additionally, the humidity in September is higher at 78%, compared to 74% in August, indicating a slightly more humid atmosphere as summer transitions into autumn. For more detailed information, you can check Souillac weather in August.

In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 25°C (78°F), with an average of 22°C (71°F). This month experiences 33 mm (1.3 in) of precipitation over approximately 12 days, accompanied by a humidity level of 78%. In contrast, October brings slightly warmer weather, with minimum temperatures at 19°C (66°F), an average of 23°C (73°F), and maximums reaching 27°C (82°F). While October sees an increase in precipitation to 42 mm (1.6 in) over 11 days, the humidity remains similar at 77%. For more specific details on this month's weather, you can check Souillac weather in October.

September and November present a notable shift in weather conditions. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 25°C (78°F), with an average of 22°C (71°F). The month experiences moderate rainfall of 33 mm (1.3 in) across about 12 days, accompanied by a steady humidity level of 78%. In contrast, November sees warmer temperatures, with a minimum of 19°C (66°F), an average of 24°C (75°F), and a maximum reaching 29°C (84°F). Rainfall increases to 62 mm (2.4 in) over 14 days, maintaining the same humidity level of 78%. For more detailed information on November weather, you can visit Souillac weather in November.

In comparing the weather between September and December, we see notable differences in temperature and precipitation levels. September experiences milder temperatures, with a minimum of 18°C (65°F) and an average of 22°C (71°F), while December is warmer, ranging from a minimum of 22°C (72°F) to an average of 26°C (78°F). The rainfall also varies significantly; September receives 33 mm (1.3 in) over 12 days, whereas December sees a substantial increase, totaling 120 mm (4.7 in) over 22 days. Additionally, humidity is slightly higher in December at 81%, compared to 78% in September. For more details on December weather, visit Souillac weather in December.

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Conclusion: What to Expect From September Weather in Souillac

September in Souillac heralds the transition from the cooler winter months to the warmer spring season, presenting a refreshing mix of moderate temperatures and increased humidity. With an average temperature of 22°C, the weather is mild, making it a pleasant time for outdoor activities. However, with 12 days of precipitation amounting to 33 mm, expect occasional showers that contribute to the lushness of the landscape. This month stands out compared to the drier and warmer summer months that follow, allowing visitors to enjoy a blend of comfort and nature's brilliance. Dive deeper into the local climate by visiting Souillac Climate.