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March Weather in San Luis, United States

Last updated: June 24, 2025

In San Luis, United States, the average temperature in March hovers around 20°C (68°F), making it a pleasant time to visit. However, be prepared for temperature fluctuations, as the minimum can dip to 4°C (40°F) while highs can reach up to 36°C (97°F). During this month, you can expect about 19 mm (0.7 in) of precipitation over 1 day, with an average humidity of 65%.

March Temperature in San Luis

In March in San Luis, the average temperature is 20°C (68°F), with maximums reaching 36°C (97°F) and minimums dropping as low as 4°C (40°F). This variety in temperatures makes San Luis an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates March temperature patterns in San Luis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Luis, March typically has an average temperature of 20°C (68°F), with highs reaching up to 36°C (97°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec596167768190959689776858
Data source: Temperature data for San Luis generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in San Luis

In San Luis in March, the precipitation amount is 19 mm (0.7 in) over a duration of 1 day.

March Precipitation Trends in San Luis

The chart displays monthly precipitation patterns in San Luis, 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 Luis, March typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec915193106620889
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Luis

In San Luis in March humidity is 65%. With an average temperature of 20°C (68°F), this humidity feels quite muggy for traveling, making even short walks feel a bit sticky and requiring frequent hydration.

March Average Humidity in San Luis

This chart illustrates the average monthly humidity levels in San Luis, 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 Luis is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%76%65%50%33%28%28%33%50%61%70%78%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in San Luis

In San Luis in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Luis.

Maximum UV Index Levels in San Luis for March

The chart shows the monthly maximum UV Index (UVI) for San Luis 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 Luis typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110854
Data source: San Luis 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 Luis Compares to Other Months

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

This table compares monthly weather conditions in San Luis, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)9 mm (0.4 inches)73%moderate
February Weather16°C (61°F)15 mm (0.6 inches)76%high
March Weather20°C (68°F)19 mm (0.7 inches)65%very high
April Weather24°C (76°F)3 mm (0.1 inches)50%very high
May Weather27°C (81°F)1 mm (0.0 inches)33%extreme
June Weather32°C (90°F)0 mm (0.0 inches)28%extreme
July Weather35°C (96°F)6 mm (0.2 inches)28%extreme
August Weather35°C (96°F)6 mm (0.2 inches)33%extreme
September Weather32°C (89°F)20 mm (0.8 inches)50%very high
October Weather25°C (78°F)8 mm (0.3 inches)61%very high
November Weather20°C (68°F)8 mm (0.3 inches)70%moderate
December Weather14°C (58°F)9 mm (0.4 inches)78%moderate

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