September Weather in Big Bend, Eswatini

Last updated: August 23, 2025

In Big Bend, Eswatini, the average temperature in September hovers around 21°C (71°F), offering a comfortable climate. Expect temperatures to range from a cool 10°C (50°F) to a warm 39°C (103°F). With an average precipitation of 20 mm (0.8 in) over 4 days, you might encounter a few showers, adding a refreshing touch to the atmosphere. Humidity levels can be high at 85%, so be prepared for a somewhat tropical feel during your visit!

September Temperature in Big Bend

In September in Big Bend, the average temperature is 21°C (71°F), with maximums reaching up to 39°C (103°F) and minimums dipping as low as 10°C (50°F). It’s a great time to visit for those who enjoy warm weather with a chance for cooler evenings.

September Weather in Big Bend: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Big Bend, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Big Bend, September typically has an average temperature of 21°C (71°F), with highs reaching up to 39°C (103°F) and lows dropping to around 10°C (50°F).

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

September Precipitation in Big Bend

In Big Bend in September, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 days.

September Precipitation Trends in Big Bend

The chart displays monthly precipitation patterns in Big Bend, 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 Big Bend, September typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 4 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 Big Bend

In Big Bend in September humidity is 85%. With an average temperature of 21°C (71°F), this humidity feels like a warm, heavy blanket enveloping you, making travel a bit more tiring but also creating an atmosphere rich with the scent of blooming flora and vibrant street life.

September Average Humidity in Big Bend

This chart illustrates the average monthly humidity levels in Big Bend, 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 Big Bend is approximately 85%, 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 Big Bend

In Big Bend in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Big Bend.

Maximum UV Index Levels in Big Bend for September

The chart shows the monthly maximum UV Index (UVI) for Big Bend 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 Big Bend typically reaches 9, which falls under the very high exposure category.

Data source: Big Bend 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 Big Bend Compares to Other Months

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

This table compares monthly weather conditions in Big Bend, 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)	93 mm (3.7 inches)	82%	extreme
February Weather	25°C (78°F)	143 mm (5.6 inches)	81%	extreme
March Weather	25°C (77°F)	73 mm (2.9 inches)	80%	extreme
April Weather	23°C (73°F)	37 mm (1.5 inches)	82%	very high
May Weather	20°C (69°F)	18 mm (0.7 inches)	86%	high
June Weather	18°C (65°F)	17 mm (0.7 inches)	78%	moderate
July Weather	18°C (65°F)	3 mm (0.1 inches)	81%	high
August Weather	19°C (67°F)	20 mm (0.8 inches)	77%	very high
September Weather	21°C (71°F)	20 mm (0.8 inches)	85%	very high
October Weather	22°C (71°F)	63 mm (2.5 inches)	85%	extreme
November Weather	23°C (74°F)	66 mm (2.6 inches)	85%	extreme
December Weather	25°C (77°F)	85 mm (3.4 inches)	84%	extreme