May Weather in San Fernando, Spain

Last updated: August 27, 2025

In May, the average temperature in San Fernando, Spain hovers around 20°C (68°F), offering a pleasant climate for outdoor activities. Expect a minimum of 11°C (53°F) and a maximum reaching 30°C (86°F), providing a range that caters to diverse preferences. While you enjoy the warmth, be prepared for about 25 mm (1.0 in) of precipitation over 4 days, with an average humidity of 59% that adds a touch of freshness to the air.

May Temperature in San Fernando

In May in San Fernando, the average temperature is 20°C (68°F). The maximum can reach 30°C (86°F), and the minimum can be as low as 11°C (53°F). This mild climate makes it an ideal time for outdoor activities and exploring the local attractions.

May Weather in San Fernando: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Fernando, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Fernando, May typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (86°F) and lows dropping to around 11°C (53°F).

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

May Precipitation in San Fernando

In San Fernando in May, the precipitation amount is 25 mm (1.0 in) over the course of 4 days.

May Precipitation Trends in San Fernando

The chart displays monthly precipitation patterns in San Fernando, 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 San Fernando, May typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in San Fernando

In San Fernando in May, humidity is 59%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, creating a slightly muggy atmosphere that can be a bit stifling for outdoor activities, yet refreshing during cooler, shaded moments, making it ideal for leisurely sightseeing and exploration in the early mornings or late afternoons.

May Average Humidity in San Fernando

This chart illustrates the average monthly humidity levels in San Fernando, 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 San Fernando is approximately 59%, 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 San Fernando

In San Fernando in May, 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 San Fernando.

Maximum UV Index Levels in San Fernando for May

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

Data source: San Fernando 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 San Fernando Compares to Other Months

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

This table compares monthly weather conditions in San Fernando, 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 (54°F)	49 mm (1.9 inches)	79%	moderate
February Weather	14°C (58°F)	39 mm (1.5 inches)	71%	moderate
March Weather	15°C (59°F)	87 mm (3.4 inches)	67%	high
April Weather	16°C (62°F)	66 mm (2.6 inches)	60%	very high
May Weather	20°C (68°F)	25 mm (1.0 inches)	59%	very high
June Weather	22°C (71°F)	5 mm (0.2 inches)	52%	extreme
July Weather	24°C (75°F)	0 mm (0.0 inches)	54%	very high
August Weather	25°C (77°F)	2 mm (0.1 inches)	51%	very high
September Weather	24°C (75°F)	13 mm (0.5 inches)	59%	very high
October Weather	21°C (69°F)	49 mm (1.9 inches)	68%	high
November Weather	16°C (62°F)	92 mm (3.6 inches)	77%	moderate
December Weather	14°C (58°F)	54 mm (2.1 inches)	81%	moderate