September Weather in Rosso, Senegal

Last updated: August 31, 2025

In September, the average temperature in Rosso, Senegal hovers around 30°C (87°F), with a comfortable minimum of 23°C (74°F) and the potential to soar to a sweltering 43°C (110°F). Expect a total precipitation of 54 mm (2.1 in) spread over approximately 8 days, accompanied by an average humidity of 78%, creating a tropical atmosphere that is both warm and humid.

September Temperature in Rosso

In September in Rosso, the average temperature is 30°C (87°F). The maximum can reach 43°C (110°F), and the minimum can be as low as 23°C (74°F). It's important to stay hydrated and plan outdoor activities during the cooler parts of the day.

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

The chart illustrates September temperature patterns in Rosso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rosso, September typically has an average temperature of 30°C (87°F), with highs reaching up to 43°C (110°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Rosso

In Rosso in September, the total precipitation amount reaches 54 mm (2.1 in) over a span of 8 days.

September Precipitation Trends in Rosso

The chart displays monthly precipitation patterns in Rosso, 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 Rosso, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 8 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 Rosso

In Rosso in September, humidity is 78%. With an average temperature of 30°C (87°F), this humidity feels like walking through a warm, heavy blanket, making outdoor activities somewhat uncomfortable and necessitating frequent breaks in shaded or air-conditioned areas for travelers.

September Average Humidity in Rosso

This chart illustrates the average monthly humidity levels in Rosso, 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 Rosso is approximately 78%, 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 Rosso

In Rosso 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 Rosso, you can check here.

Maximum UV Index Levels in Rosso for September

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

Data source: Rosso 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 Rosso Compares to Other Months

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

This table compares monthly weather conditions in Rosso, 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 (77°F)	0 mm (0.0 inches)	36%	very high
February Weather	26°C (79°F)	0 mm (0.0 inches)	40%	very high
March Weather	27°C (82°F)	1 mm (0.0 inches)	41%	extreme
April Weather	29°C (84°F)	0 mm (0.0 inches)	44%	extreme
May Weather	29°C (84°F)	0 mm (0.0 inches)	51%	extreme
June Weather	30°C (86°F)	3 mm (0.1 inches)	67%	extreme
July Weather	29°C (85°F)	8 mm (0.3 inches)	72%	extreme
August Weather	30°C (86°F)	43 mm (1.7 inches)	77%	extreme
September Weather	30°C (87°F)	54 mm (2.1 inches)	78%	extreme
October Weather	32°C (89°F)	12 mm (0.5 inches)	71%	extreme
November Weather	29°C (85°F)	0 mm (0.0 inches)	44%	very high
December Weather	26°C (78°F)	0 mm (0.0 inches)	40%	very high