nomadseason

June Weather in San Marcos, Mexico

Last updated: August 27, 2025

In June, the average temperature in San Marcos, Mexico reaches a warm 28°C (82°F). Temperature extremes can vary, with a minimum of 23°C (73°F) and a maximum soaring up to 38°C (101°F). During this month, expect considerable precipitation, totaling 237 mm (9.3 in) across approximately 21 days. The average humidity stands at a tropical 78%, making this a quintessential example of a warm and humid climate.

June Temperature in San Marcos

In June in San Marcos, the average temperature is 28°C (82°F), with maximums reaching 38°C (101°F) and minimums dropping to as low as 23°C (73°F). This warm climate makes San Marcos an ideal destination for travelers seeking summer adventures and outdoor activities.

June Weather in San Marcos: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in San Marcos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Marcos, June typically has an average temperature of 28°C (82°F), with highs reaching up to 38°C (101°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec808082828482838281818180
Data source: Temperature data for San Marcos generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in San Marcos

In San Marcos in June, the total precipitation amount is 237 mm (9.3 in) spread over 21 days.

June Precipitation Trends in San Marcos

The chart displays monthly precipitation patterns in San Marcos, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In San Marcos, June typically receives around 237 mm (9.3 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec2102132371052623032284319
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in San Marcos

In San Marcos in June humidity is 78%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting and overwhelming, potentially leading to a slower pace while exploring.

June Average Humidity in San Marcos

This chart illustrates the average monthly humidity levels in San Marcos, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in San Marcos is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Marcos

In San Marcos in June, 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 Marcos, you can check here.

Maximum UV Index Levels in San Marcos for June

The chart shows the monthly maximum UV Index (UVI) for San Marcos in June, 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 June, the maximum UV index in San Marcos typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313141313131198
Data source: San Marcos June 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 June Weather in San Marcos Compares to Other Months

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

This table compares monthly weather conditions in San Marcos, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)2 mm (0.1 inches)65%very high
February Weather27°C (81°F)1 mm (0.0 inches)61%extreme
March Weather28°C (82°F)0 mm (0.0 inches)59%extreme
April Weather28°C (83°F)1 mm (0.1 inches)62%extreme
May Weather29°C (84°F)13 mm (0.5 inches)73%extreme
June Weather28°C (82°F)237 mm (9.3 inches)78%extreme
July Weather29°C (84°F)105 mm (4.1 inches)79%extreme
August Weather28°C (83°F)262 mm (10.3 inches)82%extreme
September Weather27°C (81°F)303 mm (11.9 inches)82%extreme
October Weather27°C (81°F)228 mm (9.0 inches)79%extreme
November Weather27°C (81°F)43 mm (1.7 inches)72%very high
December Weather27°C (80°F)19 mm (0.8 inches)70%very high

Compare San Marcos's Climate with Cities Worldwide