September Weather in Riah, Morocco

Last updated: August 28, 2025

In September, the average temperature in Riah, Morocco is a pleasant 23°C (74°F). However, don't be surprised by the temperature's range, as it can dip to a cool 13°C (55°F) or soar up to a scorching 41°C (106°F). With only 8 mm (0.3 in) of rainfall over 2 days, you'll likely enjoy plenty of sunshine, but keep in mind the average humidity is a sticky 72%.

September Temperature in Riah

In September in Riah, the average temperature is 23°C (74°F), making it a pleasant time to explore. However, be prepared for daily temperature fluctuations, with maximums soaring to 41°C (106°F) and minimums dipping down to 13°C (55°F). It's advisable to plan your activities accordingly to enjoy the best of what Riah has to offer.

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

The chart illustrates September temperature patterns in Riah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riah, September typically has an average temperature of 23°C (74°F), with highs reaching up to 41°C (106°F) and lows dropping to around 13°C (55°F).

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

September Precipitation in Riah

In Riah in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

September Precipitation Trends in Riah

The chart displays monthly precipitation patterns in Riah, 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 Riah, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 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 Riah

In Riah in September humidity is 72%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket that clings to the skin, making outdoor activities a challenge but offering a refreshing atmosphere for leisurely strolls in the shade.

September Average Humidity in Riah

This chart illustrates the average monthly humidity levels in Riah, 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 Riah is approximately 72%, 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 Riah

In Riah 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 Riah.

Maximum UV Index Levels in Riah for September

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

Data source: Riah 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 Riah Compares to Other Months

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

This table compares monthly weather conditions in Riah, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	31 mm (1.2 inches)	68%	moderate
February Weather	14°C (57°F)	42 mm (1.7 inches)	65%	moderate
March Weather	15°C (59°F)	47 mm (1.9 inches)	67%	very high
April Weather	17°C (63°F)	33 mm (1.3 inches)	64%	very high
May Weather	20°C (68°F)	17 mm (0.7 inches)	67%	extreme
June Weather	22°C (71°F)	4 mm (0.1 inches)	68%	extreme
July Weather	24°C (75°F)	1 mm (0.0 inches)	74%	extreme
August Weather	25°C (77°F)	1 mm (0.0 inches)	70%	very high
September Weather	23°C (74°F)	8 mm (0.3 inches)	72%	very high
October Weather	21°C (69°F)	23 mm (0.9 inches)	70%	high
November Weather	16°C (61°F)	38 mm (1.5 inches)	71%	moderate
December Weather	13°C (56°F)	28 mm (1.1 inches)	70%	moderate