March Weather in San Sebastian, Mexico

Last updated: August 27, 2025

In March, the average temperature in San Sebastian, Mexico is a pleasant 19°C (66°F). You can expect minimum temperatures to drop to around 6°C (42°F), while the maximum can reach a warm 33°C (91°F). During this time, precipitation averages just 8 mm (0.3 in) over the course of 1 day, and humidity levels hover at a comfortable 75%. Enjoy the mild climate and the refreshing atmosphere!

March Temperature in San Sebastian

In March in San Sebastian, the average temperature is 19°C (66°F), with maximums reaching 33°C (91°F) and minimums dropping as low as 6°C (42°F). This makes it a perfect time for travelers to enjoy a comfortable climate while exploring the area's attractions.

March Weather in San Sebastian: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in San Sebastian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian, March typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (91°F) and lows dropping to around 6°C (42°F).

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

March Precipitation in San Sebastian

In San Sebastian in March, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

March Precipitation Trends in San Sebastian

The chart displays monthly precipitation patterns in San Sebastian, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In San Sebastian, March typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.

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

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Millimeters (mm) Inches (in)

March Humidity in San Sebastian

In San Sebastian in March humidity is 75%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it slightly uncomfortable for traveling as you navigate through the thick, muggy air.

March Average Humidity in San Sebastian

This chart illustrates the average monthly humidity levels in San Sebastian, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in San Sebastian is approximately 75%, offering insight into how humid the weather typically is during this month.

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

March UV Index in San Sebastian

In San Sebastian in March, 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 San Sebastian, you can check here.

Maximum UV Index Levels in San Sebastian for March

The chart shows the monthly maximum UV Index (UVI) for San Sebastian in March, 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 March, the maximum UV index in San Sebastian typically reaches 14, which falls under the extreme exposure category.

Data source: San Sebastian March 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 March Weather in San Sebastian Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	4 mm (0.2 inches)	84%	very high
February Weather	17°C (62°F)	2 mm (0.1 inches)	78%	extreme
March Weather	19°C (66°F)	8 mm (0.3 inches)	75%	extreme
April Weather	20°C (69°F)	15 mm (0.6 inches)	70%	extreme
May Weather	21°C (70°F)	24 mm (0.9 inches)	77%	extreme
June Weather	20°C (68°F)	96 mm (3.8 inches)	76%	extreme
July Weather	19°C (66°F)	93 mm (3.7 inches)	68%	extreme
August Weather	19°C (66°F)	116 mm (4.6 inches)	70%	extreme
September Weather	18°C (65°F)	123 mm (4.8 inches)	82%	extreme
October Weather	17°C (63°F)	56 mm (2.2 inches)	91%	extreme
November Weather	16°C (60°F)	15 mm (0.6 inches)	89%	very high
December Weather	15°C (59°F)	2 mm (0.1 inches)	88%	very high