September Weather in Saint David's, Grenada

Last updated: August 23, 2025

In September, the average temperature in Saint David's, Grenada reaches a warm 28°C (82°F), with comfortable minimums around 25°C (78°F) and slightly higher maximums up to 29°C (85°F). However, you should be prepared for a fair amount of rain, as 145 mm (5.7 in) of precipitation typically falls over the course of 21 days. Don't forget that the average humidity is quite high at 79%, contributing to the tropical feel of the month.

September Temperature in Saint David's

In September in Saint David's, 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 Saint David's: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint David's, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint David's, 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 Saint David's generated using information from the Copernicus Climate Change Service.

September Precipitation in Saint David's

In Saint David's in September, the total precipitation amount is 145 mm (5.7 in) spread over 21 days.

September Precipitation Trends in Saint David's

The chart displays monthly precipitation patterns in Saint David's, 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 Saint David's, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 21 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 Saint David's

In Saint David's in September humidity is 79%. With an average temperature of 28°C (82°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration more strenuous and requiring frequent breaks for hydration.

September Average Humidity in Saint David's

This chart illustrates the average monthly humidity levels in Saint David's, 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 Saint David's is approximately 79%, 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 Saint David's

In Saint David's 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 Saint David's, you can check here.

Maximum UV Index Levels in Saint David's for September

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

Data source: Saint David's 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 Saint David's Compares to Other Months

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

This table compares monthly weather conditions in Saint David's, 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 (79°F)	50 mm (2.0 inches)	78%	extreme
February Weather	26°C (78°F)	37 mm (1.5 inches)	77%	extreme
March Weather	26°C (79°F)	40 mm (1.6 inches)	76%	extreme
April Weather	26°C (80°F)	26 mm (1.0 inches)	75%	extreme
May Weather	27°C (80°F)	50 mm (2.0 inches)	76%	extreme
June Weather	27°C (81°F)	111 mm (4.4 inches)	80%	extreme
July Weather	27°C (81°F)	167 mm (6.6 inches)	83%	extreme
August Weather	27°C (81°F)	177 mm (7.0 inches)	80%	extreme
September Weather	28°C (82°F)	145 mm (5.7 inches)	79%	extreme
October Weather	27°C (82°F)	195 mm (7.7 inches)	79%	extreme
November Weather	27°C (81°F)	132 mm (5.2 inches)	81%	extreme
December Weather	27°C (80°F)	82 mm (3.2 inches)	80%	very high