September Weather in The Bottom, Bonaire, Sint Eustatius and Saba

Last updated: August 22, 2025

In The Bottom, Bonaire, Sint Eustatius and Saba, the average temperature in September is a warm 28°C (82°F). Expect a minimum of 25°C (77°F) and a maximum reaching up to 29°C (85°F). While you soak up the sun, be prepared for precipitation averaging 151 mm (5.9 in) spread over 20 days. With an average humidity level of 80%, it’s a perfect time to enjoy the tropical vibes!

September Temperature in The Bottom

In September in The Bottom, the average temperature is 28°C (82°F). The maximum can reach 29°C (85°F), while the minimum can be as low as 25°C (77°F). This pleasant weather makes it an ideal time for travelers to explore and enjoy all the outdoor activities that The Bottom has to offer.

September Weather in The Bottom: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in The Bottom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In The Bottom, 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 (77°F).

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

September Precipitation in The Bottom

In The Bottom in September, the precipitation amount is 151 mm (5.9 in) over a span of 20 days.

September Precipitation Trends in The Bottom

The chart displays monthly precipitation patterns in The Bottom, 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 The Bottom, September typically receives around 151 mm (5.9 inches) of precipitation spread over approximately 20 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 The Bottom

In The Bottom 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 The Bottom

This chart illustrates the average monthly humidity levels in The Bottom, 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 The Bottom 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 The Bottom

In The Bottom 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 The Bottom, you can check here.

Maximum UV Index Levels in The Bottom for September

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

Data source: The Bottom 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 The Bottom Compares to Other Months

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

This table compares monthly weather conditions in The Bottom, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	33 mm (1.3 inches)	77%	very high
February Weather	25°C (77°F)	32 mm (1.2 inches)	77%	extreme
March Weather	25°C (77°F)	26 mm (1.0 inches)	77%	extreme
April Weather	25°C (78°F)	37 mm (1.4 inches)	78%	extreme
May Weather	26°C (79°F)	50 mm (2.0 inches)	79%	extreme
June Weather	27°C (81°F)	51 mm (2.0 inches)	81%	extreme
July Weather	27°C (81°F)	83 mm (3.2 inches)	83%	extreme
August Weather	28°C (82°F)	97 mm (3.8 inches)	82%	extreme
September Weather	28°C (82°F)	151 mm (5.9 inches)	80%	extreme
October Weather	27°C (82°F)	114 mm (4.5 inches)	79%	extreme
November Weather	27°C (80°F)	97 mm (3.8 inches)	79%	very high
December Weather	26°C (79°F)	46 mm (1.8 inches)	78%	very high