September Weather in Layou, Saint Vincent and the Grenadines

Last updated: August 31, 2025

In September, the average temperature in Layou, Saint Vincent and the Grenadines is a warm 28°C (82°F), with a minimum of 25°C (78°F) and a maximum of 29°C (85°F). Expect 146 mm (5.7 in) of precipitation spread over 18 days, contributing to an average humidity of 80%. Embrace the warm, humid weather while preparing for occasional rain!

September Temperature in Layou

In September in Layou, the average temperature is 28°C (82°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 25°C (78°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates September temperature patterns in Layou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Layou, September typically has an average temperature of 28°C (82°F), with highs reaching up to 29°C (85°F) and lows dropping to around 25°C (78°F).

Data source: Temperature data for Layou generated using information from the Copernicus Climate Change Service.

September Precipitation in Layou

In Layou in September, the total precipitation amount is 146 mm (5.7 in) spread over 18 days.

September Precipitation Trends in Layou

The chart displays monthly precipitation patterns in Layou, 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 Layou, September typically receives around 146 mm (5.7 inches) of precipitation spread over approximately 18 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Layou

In Layou in September, humidity is 80%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket enveloping you, making outdoor activities sweaty and demanding frequent breaks in the shade while traveling.

September Average Humidity in Layou

This chart illustrates the average monthly humidity levels in Layou, 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 Layou is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Layou

In Layou in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Layou, you can check here.

Maximum UV Index Levels in Layou for September

The chart shows the monthly maximum UV Index (UVI) for Layou 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 Layou typically reaches 14, which falls under the extreme exposure category.

Data source: Layou 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 Layou Compares to Other Months

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

This table compares monthly weather conditions in Layou, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (78°F)	44 mm (1.8 inches)	81%	extreme
February Weather	25°C (78°F)	31 mm (1.2 inches)	80%	extreme
March Weather	26°C (78°F)	37 mm (1.5 inches)	80%	extreme
April Weather	26°C (79°F)	29 mm (1.1 inches)	79%	extreme
May Weather	27°C (80°F)	41 mm (1.6 inches)	80%	extreme
June Weather	27°C (81°F)	91 mm (3.6 inches)	83%	extreme
July Weather	27°C (81°F)	133 mm (5.2 inches)	84%	extreme
August Weather	27°C (81°F)	154 mm (6.1 inches)	81%	extreme
September Weather	28°C (82°F)	146 mm (5.7 inches)	80%	extreme
October Weather	27°C (82°F)	166 mm (6.5 inches)	82%	extreme
November Weather	27°C (81°F)	121 mm (4.8 inches)	83%	extreme
December Weather	26°C (80°F)	53 mm (2.1 inches)	82%	very high