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September Weather in Yallahs, Jamaica

Last updated: August 23, 2025

In September, the average temperature in Yallahs, Jamaica hovers around 28°C (82°F), offering a pleasant climate perfect for outdoor activities. Expect temperatures to range from a minimum of 25°C (77°F) to a maximum of 30°C (86°F). Be prepared for some precipitation, as 102 mm (4.0 in) is expected over 14 days, with an average humidity of 77% adding to the tropical feel of the region.

September Temperature in Yallahs

In September in Yallahs, the average temperature is 28°C (82°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 25°C (77°F). This mild and warm weather makes it an ideal time to explore and enjoy outdoor activities in Yallahs.

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

The chart illustrates September temperature patterns in Yallahs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yallahs, September typically has an average temperature of 28°C (82°F), with highs reaching up to 30°C (86°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec787777787981818282818079
Data source: Temperature data for Yallahs 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 Yallahs

In Yallahs in September, the precipitation amount is 102 mm (4.0 in) over a period of 14 days.

September Precipitation Trends in Yallahs

The chart displays monthly precipitation patterns in Yallahs, 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 Yallahs, September typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec40393253125765613810224115053
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Yallahs

In Yallahs in September humidity is 77%. With an average temperature of 28°C (82°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities sticky and exhausting, but also offers a lush vibrancy to the landscape, perfect for enjoying leisurely strolls in the early morning or late afternoon.

September Average Humidity in Yallahs

This chart illustrates the average monthly humidity levels in Yallahs, 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 Yallahs is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%75%76%77%79%79%78%77%76%78%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Yallahs

In Yallahs 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 Yallahs.

Maximum UV Index Levels in Yallahs for September

The chart shows the monthly maximum UV Index (UVI) for Yallahs 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 Yallahs typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131414131313121298
Data source: Yallahs 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 Yallahs Compares to Other Months

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

This table compares monthly weather conditions in Yallahs, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)40 mm (1.6 inches)76%very high
February Weather25°C (78°F)39 mm (1.5 inches)76%extreme
March Weather25°C (78°F)32 mm (1.3 inches)75%extreme
April Weather26°C (79°F)53 mm (2.1 inches)76%extreme
May Weather26°C (80°F)125 mm (4.9 inches)77%extreme
June Weather27°C (81°F)76 mm (3.0 inches)79%extreme
July Weather27°C (82°F)56 mm (2.2 inches)79%extreme
August Weather28°C (82°F)138 mm (5.4 inches)78%extreme
September Weather28°C (82°F)102 mm (4.0 inches)77%extreme
October Weather27°C (81°F)241 mm (9.5 inches)76%extreme
November Weather27°C (80°F)149 mm (5.9 inches)78%very high
December Weather26°C (79°F)53 mm (2.1 inches)77%very high

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