September Weather in Laborie, Saint Lucia

Last updated: August 31, 2025

In Laborie, Saint Lucia, September offers a blend of warm temperatures and lush tropical ambiance. With maximum highs reaching 31°C (88°F) and an average temperature of 28°C (82°F), visitors can enjoy a comfortable climate ideal for relaxation and exploration. However, this month also brings frequent rainfall, accumulating to 136 mm (5.4 in) over approximately 19 days, contributing to the island's vibrant greenery. Coupled with a humidity level of around 80%, September embodies the essence of a tropical paradise, making it a unique time to experience the beauty and charm of Laborie.

September Temperature in Laborie

In September, Laborie, Saint Lucia reaches a delightful peak in warmth, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F). At this time of year, the average temperature sits comfortably at 28°C (82°F), making it one of the warmest months on the island. This trend of increasing warmth is notable as September follows a summer pattern where temperatures consistently rise, allowing for both inviting beach days and balmy evenings. As the month rolls into autumn, visitors can expect a mix of sunny days and occasional tropical showers, perfect for both relaxation and exploration.

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

The chart illustrates September temperature patterns in Laborie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Laborie, 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).
JanFebMarAprMayJunJulAugSepOctNovDec787878798181818182818079
Data source: Temperature data for Laborie generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Laborie

September in Laborie, Saint Lucia, marks a notable peak in precipitation, with 136 mm (5.4 in) of rainfall accumulated over 19 days. This surge follows the substantial rains of August, where 121 mm (4.8 in) fell across 25 days, indicating a consistent pattern of increased moisture as the season transitions. The trend highlights an upward trajectory from the calmer months earlier in the year; for instance, January through May collectively sees much less rain, averaging only around 38 mm (1.5 in). As September ushers in the onset of the wet season, it sets the stage for the following month, October, which closely follows with a similar rainfall total, emphasizing a period of heightened rainfall that continues into the fall.

September Precipitation Trends in Laborie

The chart displays monthly precipitation patterns in Laborie, 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 Laborie, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec38313732396811812113714010846
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Laborie

In September, Laborie, Saint Lucia, experiences a mild humidity level of 80%, maintaining the trend of moisture that characterizes the region throughout the year. The humidity remains relatively consistent, dipping slightly from the higher marks of July and June, which see peaks of 84% and 83%, respectively. This drop to 80% in September reflects a transition as the island gradually shifts toward the drier months of October and November, where humidity levels rise again to 82% and 83%. Overall, the year's humidity levels are fairly stable, with September comfortably seated in the middle, highlighting the tropical climate's influence on daily life in this beautiful coastal locale.

September Average Humidity in Laborie

This chart illustrates the average monthly humidity levels in Laborie, 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 Laborie is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%80%79%80%83%84%81%80%82%83%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Laborie

In September, Laborie, Saint Lucia experiences a UV Index of 14, categorizing it as extreme. This index, consistent with the high levels observed throughout the summer months, indicates a burn time of just 10 minutes for unprotected skin. Notably, the UV Index has remained elevated from January's reasonably high levels to a peak in March, April, May, and August, sustaining an extreme rating for much of the year. As we transition into October, the index drops slightly to 12, but still calls for caution. Travelers and locals alike should stay informed about these trends to ensure proper sun protection during their outdoor activities. For more detailed insights, visit the Laborie UV Index.

Maximum UV Index Levels in Laborie for September

The chart shows the monthly maximum UV Index (UVI) for Laborie 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 Laborie typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141313141412109
Data source: Laborie 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 Laborie

As summer fades into fall, September in Laborie, Saint Lucia often gifts residents and visitors with a wealth of sunshine, totaling 323 hours this month. While this marks a slight dip from the vibrant summer peak of 355 hours in May, it remains consistent with the previous months, reflecting an almost rhythmic pattern of sunlight throughout the year. Compared to October's 321 hours, September shines brightly, suggesting a gentle shift towards the cooler seasons. The overall trend reveals that Laborie enjoys a generous sun-filled atmosphere, making it a perfect time to bask in the golden rays before the year draws to a close.

Monthly Sunshine Duration in Laborie: September Highlighted

The September sunshine duration represents the total number of hours Laborie 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.
JanFebMarAprMayJunJulAugSepOctNovDec269h305h345h336h355h326h348h345h323h321h316h330h
Data source: Laborie September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Laborie During September

In Laborie, Saint Lucia, the month of September offers a moderate 50% chance of sunny weather, which aligns with the subtle warming trend seen as summer transitions into fall. While the likelihood of sunshine dips from its peak in February at 68%, it reflects a consistent pattern with nearby months, maintaining a balanced atmosphere for travelers. Interestingly, September sits in the middle of the monthly spectrum for sun exposure, slightly surpassing the summer months of July and August, which both hover around 49%. As the year progresses, the chances of sunny days tend to rise again, with November seeing an increase to 58%. Thus, while September may not guarantee endless sun, it certainly retains a fair opportunity for delightful days under the Caribbean sky.

Percentage of Sunny Days in September in Laborie

The chart illustrates the percentage of sunny days in Laborie 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 Laborie experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec53%68%42%37%46%30%47%49%50%48%58%53%
Data source: Laborie September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Laborie in September

In Laborie, Saint Lucia, the month of September enjoys a generous 12 hours of daylight, continuing the trend established over the summer months. This consistency is a hallmark of the region's tropical climate, where daylight duration remains relatively stable throughout the year. From March through September, locals and visitors alike bask in the extended hours of sunlight, perfect for outdoor activities and beach outings. As the calendar shifts towards October, daylight begins to gradually taper off, dropping to 11 hours. This gentle transition sets the stage for the island's inviting ambiance as it moves into the cooler months, ensuring that every sunset still holds a touch of warmth and radiance.

Average Daylight Hours in Laborie for September

The chart illustrates the variation in daylight duration in Laborie throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 24m11h 41m12h 3m12h 26m12h 45m12h 54m12h 49m12h 32m12h 10m11h 47m11h 28m11h 19m
Data source: Laborie daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Laborie

In September, Laborie, Saint Lucia, experiences a noticeable shift in wind patterns, with average wind speeds dropping to a gentle 4.3 m/s (10 mph). This decrease marks the tail end of the summer months, where the winds have generally been more robust, peaking at 7.8 m/s (18 mph) in February. As the peak of summer transitions into autumn, the slight lull in wind signifies a tranquil atmosphere, ideal for leisurely beach days and serene evenings by the shore. Notably, the wind is calmer in September compared to the previous months, reflecting a broader trend of diminishing wind speeds from the summer's vibrant breezes down to a more subdued pace as the year begins to shift toward winter.

Average September Wind Speed in Laborie

The chart displays monthly wind speed patterns in Laborie, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.97.86.85.96.96.86.75.54.3 m/s6.15.47.0
Data source: Laborie September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Laborie Compares to Other Months

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

September and January exhibit notable differences in weather patterns. September typically showcases a warmer climate with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), while January's temperatures are slightly cooler, averaging between 22°C (73°F) and 29°C (84°F). Additionally, September experiences significantly more rainfall, with precipitation reaching 136 mm (5.4 in) over 19 days, compared to January's 38 mm (1.5 in) across 15 days. Both months maintain similar humidity levels, around 80% in September and slightly higher in January at 81%. For a detailed look at January weather conditions, check out Laborie weather in January.

In comparing the weather between September and February, we can observe some notable differences. September typically sees higher temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), peaking at 31°C (88°F). In contrast, February offers slightly cooler temperatures, ranging from a minimum of 22°C (72°F) to an average of 25°C (78°F), and a maximum of 29°C (84°F).

Precipitation levels are significantly reduced in February, with only 31 mm (1.2 in) over 11 days, compared to September's much higher 136 mm (5.4 in) spread over 19 days. Both months maintain a consistent humidity level of 80%, providing a humid experience year-round. For more detailed insights, you can check out the Laborie weather in February.

In comparing the weather of September and March, September typically experiences warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (82°F), peaking at 31°C (88°F). It also sees significantly higher precipitation levels, with 136 mm (5.4 in) of rain falling over 19 days. In contrast, March has slightly cooler temperatures, with minimums at 22°C (72°F), an average of 26°C (78°F), and a maximum of 29°C (84°F). Additionally, March is much drier, receiving only 37 mm (1.4 in) of rainfall across 13 days. Despite both months having a humidity level of 80%, the overall climate in March feels more temperate and less rainy. For more detailed weather insights, you can visit Laborie weather in March.

In September, the weather is generally hotter and more humid compared to April, with average temperatures ranging from a minimum of 25°C (77°F) to a maximum of 31°C (88°F). The month experiences significantly higher precipitation, averaging 136 mm (5.4 in) over 19 days, leading to a lush environment. In contrast, April boasts milder temperatures, with a minimum of 23°C (74°F) and a maximum of 29°C (85°F), as well as much less rainfall, totaling only 32 mm (1.3 in) across 12 days. The humidity levels in both months are similar, hovering around 79-80%. For a closer look at April's weather patterns, you can visit Laborie weather in April.

September and May present a striking contrast in weather conditions. In September, temperatures range from a minimum of 25°C (77°F) to a maximum of 31°C (88°F), with an average of 28°C (82°F). This month also experiences significant rainfall, totaling 136 mm (5.4 in) over 19 days, while maintaining a consistent humidity level of 80%. In contrast, May boasts slightly lower temperatures, with a minimum of 24°C (75°F) and a maximum of 30°C (86°F), averaging 27°C (81°F). Precipitation in May is considerably lighter, with only 39 mm (1.5 in) over 12 days, yet it also reflects the same high humidity of 80%. For a more detailed look at the weather during this month, check out Laborie weather in May.

In comparing the weather between September and June, we can see that September generally experiences slightly warmer temperatures, with averages around 28°C (82°F) compared to June's 27°C (81°F). However, September also receives significantly more precipitation, accumulating 136 mm (5.4 in) over 19 days, while June sees only 68 mm (2.7 in) over 17 days. Humidity levels are relatively comparable, with September at 80% and June slightly higher at 83%. For a more detailed look at June weather in Laborie, you can visit Laborie weather in June.

When comparing the weather in September to that of July, September tends to be slightly warmer with average temperatures reaching 28°C (82°F), while July's average is a bit lower at 27°C (81°F). Both months experience relatively high humidity, although September has a slightly lower humidity level at 80% compared to July's 84%. Precipitation is more frequent in September, with 136 mm (5.4 in) of rain over 19 days, while July sees 118 mm (4.6 in) of rain spread over 24 days, indicating more rainy days during that month. For more detailed insights, you can check out Laborie weather in July.

In comparing the weather between August and September, we observe that both months feature similar temperature ranges, with September having a slightly higher average temperature of 28°C (82°F) compared to August's 27°C (82°F). While the minimum temperature remains consistent at 25°C (77°F) for both months, September experiences a maximum temperature that reaches 31°C (88°F), slightly warmer than August's peak of 30°C (87°F). Precipitation levels are higher in September, totaling 136 mm (5.4 in) over 19 days, compared to 121 mm (4.8 in) over 25 days in August, indicating that September is wetter despite having fewer rainy days. Humidity levels also remain comparable, with September at 80% and August at 81%. For more detailed insights, you can check the Laborie weather in August.

In comparing the weather between September and October, we see slightly cooler temperatures in October, with an average of 27°C (81°F) compared to September's 28°C (82°F). Both months experience similar maximum temperatures, peaking at 31°C (87°F in October and 88°F in September). Precipitation increases slightly in October, with 140 mm (5.5 in) compared to 136 mm (5.4 in) in September, and the number of rainy days also rises to 20 in October from 19 in September. Humidity levels are slightly higher in October at 82%, compared to 80% in September. For more detailed information, you can check out the Laborie weather in October.

In September, the weather typically exhibits slightly warmer temperatures, with an average high of 31°C (88°F) compared to November's 30°C (86°F). Both months experience high humidity levels, but September's humidity is marginally lower at 80%, whereas November sees an increase to 83%. Precipitation is also more abundant in September, totaling 136 mm (5.4 in) over 19 days, compared to November's 108 mm (4.2 in) over 21 days. For those interested in the specifics of November's weather, you can find more information here: Laborie weather in November.

In September, temperatures are generally warm, with a minimum of 25°C (77°F), an average of 28°C (82°F), and a maximum of 31°C (88°F). This month also sees significant rainfall, with a total precipitation of 136 mm (5.4 in) over 19 days, contributing to a high humidity level of 80%.

Conversely, December offers slightly cooler weather, with temperatures ranging from a minimum of 23°C (73°F) to a maximum of 29°C (85°F), averaging at 26°C (80°F). Precipitation drops considerably to 46 mm (1.8 in) across 16 days, while humidity remains relatively high at 82%. For more details on December weather, you can visit Laborie weather in December.

Compare Laborie's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Laborie

As September arrives in Laborie, the weather takes on a humid, tropical character that sets it apart from other months. With temperatures hovering around 28°C (82°F), this month often feels warmer due to the elevated 80% humidity. Frequent rain showers—totaling about 136 mm (5.4 in) across 19 days—also mark September, making it one of the wetter months of the year. While visitors might expect a sultry atmosphere, the lush surroundings thrive amidst the rain, enhancing the natural beauty of this coastal paradise. For more insights on the nuances of Laborie's climate throughout the year, check out Laborie Climate.