September Weather in Santo Tome, Argentina

Last updated: August 22, 2025

In Santo Tome, Argentina, the average temperature in September hovers around 20°C (67°F). Nights can dip as low as 6°C (43°F), while daytime highs can reach a sizzling 35°C (96°F). Expect about 118 mm (4.6 in) of rainfall spread over 11 days, contributing to an average humidity level of 59%. Whether you're out exploring or relaxing indoors, be ready for a mix of warm days and occasional showers!

September Temperature in Santo Tome

In September in Santo Tome, the average temperature is 20°C (67°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 6°C (43°F). This temperature range makes it a perfect time to explore Santo Tome, offering pleasant weather for outdoor adventures and sightseeing.

September Weather in Santo Tome: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santo Tome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tome, September typically has an average temperature of 20°C (67°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (43°F).

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

September Precipitation in Santo Tome

In Santo Tome in September, the precipitation amount is 118 mm (4.6 in) over the course of 11 days.

September Precipitation Trends in Santo Tome

The chart displays monthly precipitation patterns in Santo Tome, 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 Santo Tome, September typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 11 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 Santo Tome

In Santo Tome in September, humidity is 59%. With an average temperature of 20°C (67°F), this humidity feels like a warm embrace, making it quite comfortable for traveling, as the air wraps around you without being too oppressive, allowing for pleasant strolls and outdoor adventures.

September Average Humidity in Santo Tome

This chart illustrates the average monthly humidity levels in Santo Tome, 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 Santo Tome is approximately 59%, 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 Santo Tome

In Santo Tome in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Santo Tome.

Maximum UV Index Levels in Santo Tome for September

The chart shows the monthly maximum UV Index (UVI) for Santo Tome 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 Santo Tome typically reaches 10, which falls under the very high exposure category.

Data source: Santo Tome 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 Santo Tome Compares to Other Months

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

This table compares monthly weather conditions in Santo Tome, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	161 mm (6.4 inches)	70%	extreme
February Weather	26°C (79°F)	71 mm (2.8 inches)	66%	extreme
March Weather	24°C (76°F)	167 mm (6.6 inches)	73%	extreme
April Weather	21°C (71°F)	135 mm (5.3 inches)	81%	very high
May Weather	18°C (64°F)	171 mm (6.7 inches)	82%	high
June Weather	16°C (61°F)	101 mm (4.0 inches)	77%	moderate
July Weather	15°C (59°F)	78 mm (3.1 inches)	69%	moderate
August Weather	17°C (63°F)	76 mm (3.0 inches)	51%	high
September Weather	20°C (67°F)	118 mm (4.6 inches)	59%	very high
October Weather	22°C (72°F)	139 mm (5.5 inches)	63%	extreme
November Weather	24°C (76°F)	135 mm (5.3 inches)	66%	extreme
December Weather	26°C (79°F)	79 mm (3.1 inches)	81%	extreme