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March Weather in San Guillermo, Mexico

Last updated: August 27, 2025

In San Guillermo, Mexico, the average temperature in March hovers around 17°C (63°F), with a range from a chilly 0°C (32°F) to a warm 34°C (94°F). Expect occasional light rain, with precipitation averaging 4 mm (0.2 in) over the course of 1 day. The average humidity during this month is a comfortable 60%, making it a pleasant time to explore the area.

March Temperature in San Guillermo

In March in San Guillermo, the average temperature is 17°C (63°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 0°C (32°F). This range makes San Guillermo an ideal destination for travelers seeking a mix of warm days and cooler nights, so be sure to pack accordingly!

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

The chart illustrates March temperature patterns in San Guillermo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Guillermo, March typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (94°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec515663707782797872675951
Data source: Temperature data for San Guillermo 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 Guillermo

In San Guillermo in March, the precipitation amount is 4 mm (0.2 in) during 1 day.

March Precipitation Trends in San Guillermo

The chart displays monthly precipitation patterns in San Guillermo, 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 Guillermo, March typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec6545630796687341418
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Guillermo

In San Guillermo in March humidity is 60%. With an average temperature of 17°C (63°F), this humidity feels like a slight weight in the air, making it perfect for leisurely strolls but a bit sticky for intense outdoor activities.

March Average Humidity in San Guillermo

This chart illustrates the average monthly humidity levels in San Guillermo, 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 Guillermo is approximately 60%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%60%52%49%50%65%70%79%77%83%85%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in San Guillermo

In San Guillermo in March, 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 San Guillermo.

Maximum UV Index Levels in San Guillermo for March

The chart shows the monthly maximum UV Index (UVI) for San Guillermo 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 Guillermo typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111313131313121086
Data source: San Guillermo 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 Guillermo Compares to Other Months

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

This table compares monthly weather conditions in San Guillermo, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)6 mm (0.2 inches)78%high
February Weather13°C (56°F)5 mm (0.2 inches)71%very high
March Weather17°C (63°F)4 mm (0.2 inches)60%extreme
April Weather21°C (70°F)5 mm (0.2 inches)52%extreme
May Weather25°C (77°F)6 mm (0.2 inches)49%extreme
June Weather28°C (83°F)30 mm (1.2 inches)50%extreme
July Weather26°C (79°F)79 mm (3.1 inches)65%extreme
August Weather25°C (78°F)66 mm (2.6 inches)70%extreme
September Weather22°C (73°F)87 mm (3.4 inches)79%extreme
October Weather19°C (67°F)34 mm (1.3 inches)77%very high
November Weather15°C (60°F)14 mm (0.6 inches)83%very high
December Weather11°C (51°F)18 mm (0.7 inches)84%high

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