May Weather in Riah, Morocco

Last updated: August 28, 2025

In Riah, Morocco, the average temperature in May hovers around 20°C (68°F), offering a pleasant climate. However, be prepared for fluctuations, with minimums dipping to 7°C (46°F) and maximums soaring up to 43°C (109°F). During this month, you can expect about 17 mm (0.7 in) of precipitation spread over 3 days, contributing to an average humidity of 67%.

May Temperature in Riah

In May in Riah, the average temperature is 20°C (68°F), with maximums reaching up to 43°C (109°F) and minimums dropping as low as 7°C (46°F). This variation in temperature makes it essential for travelers to pack accordingly for both warm days and cooler nights.

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

The chart illustrates May 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, May typically has an average temperature of 20°C (68°F), with highs reaching up to 43°C (109°F) and lows dropping to around 7°C (46°F).

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

May Precipitation in Riah

In Riah in May, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

May Precipitation Trends in Riah

The chart displays monthly precipitation patterns in Riah, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Riah, May typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Riah

In Riah in May humidity is 67%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making travel comfortable yet slightly sticky, as the air clings to your skin and invites you to enjoy the sights at a leisurely pace.

May Average Humidity in Riah

This chart illustrates the average monthly humidity levels in Riah, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Riah is approximately 67%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Riah

In Riah in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Riah.

Maximum UV Index Levels in Riah for May

The chart shows the monthly maximum UV Index (UVI) for Riah in May, 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 May, the maximum UV index in Riah typically reaches 11, which falls under the extreme exposure category.

Data source: Riah May 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 May 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 May’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 May’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