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September Weather in Les Irois, Haiti

Last updated: August 23, 2025

In Les Irois, Haiti, the average temperature in September hovers around 28°C (83°F), providing a warm and inviting atmosphere. The minimum temperature can dip to 26°C (78°F), while the maximum can reach up to 30°C (87°F). Expect 74 mm (2.9 in) of precipitation spread over approximately 18 days, with an average humidity of 76% adding to the tropical feel.

September Temperature in Les Irois

In September in Les Irois, the average temperature is 28°C (83°F), with maximums reaching 30°C (87°F) and minimums dipping to as low as 26°C (78°F). This mild and pleasant weather makes it an ideal time for outdoor activities and sightseeing.

September Weather in Les Irois: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Les Irois, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Les Irois, September typically has an average temperature of 28°C (83°F), with highs reaching up to 30°C (87°F) and lows dropping to around 26°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec787878798182828382828079
Data source: Temperature data for Les Irois 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 Les Irois

In Les Irois in September, the precipitation amount reaches 74 mm (2.9 in) spread over 18 days.

September Precipitation Trends in Les Irois

The chart displays monthly precipitation patterns in Les Irois, 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 Les Irois, September typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec383345647547558574858631
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Les Irois

In Les Irois in September, humidity is 76%. With an average temperature of 28°C (83°F), this humidity feels like a warm, sticky embrace, making outdoor activities challenging and requiring travelers to stay hydrated and take frequent breaks in the shade.

September Average Humidity in Les Irois

This chart illustrates the average monthly humidity levels in Les Irois, 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 Les Irois is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%63%62%62%60%62%70%76%76%76%76%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Les Irois

In Les Irois in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Les Irois.

Maximum UV Index Levels in Les Irois for September

The chart shows the monthly maximum UV Index (UVI) for Les Irois 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 Les Irois typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131413131313121198
Data source: Les Irois 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.

How September Weather in Les Irois Compares to Other Months

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

This table compares monthly weather conditions in Les Irois, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)38 mm (1.5 inches)65%very high
February Weather25°C (78°F)33 mm (1.3 inches)63%extreme
March Weather25°C (78°F)45 mm (1.8 inches)62%extreme
April Weather26°C (79°F)64 mm (2.5 inches)62%extreme
May Weather27°C (81°F)75 mm (2.9 inches)60%extreme
June Weather28°C (82°F)47 mm (1.8 inches)61%extreme
July Weather28°C (82°F)55 mm (2.1 inches)70%extreme
August Weather28°C (83°F)85 mm (3.3 inches)76%extreme
September Weather28°C (83°F)74 mm (2.9 inches)76%extreme
October Weather28°C (82°F)85 mm (3.4 inches)76%extreme
November Weather27°C (81°F)86 mm (3.4 inches)76%very high
December Weather26°C (80°F)31 mm (1.2 inches)71%very high

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