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July Weather in San Mateo, Guatemala

Last updated: August 23, 2025

In San Mateo, Guatemala, the average temperature in July is a pleasant 19°C (66°F), with a minimum of 13°C (56°F) and a maximum reaching 25°C (77°F). Expect approximately 258 mm (10.2 in) of rainfall spread over 29 days, resulting in an average humidity level of 75%. Perfect for those who enjoy a mild and slightly damp climate!

July Temperature in San Mateo

In July in San Mateo, the average temperature is 19°C (66°F), with maximums reaching 25°C (77°F) and minimums dropping to as low as 13°C (56°F). This makes it an ideal time for traveling, as the mild weather is perfect for outdoor activities and exploring the sights.

July Weather in San Mateo: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in San Mateo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Mateo, July typically has an average temperature of 19°C (66°F), with highs reaching up to 25°C (77°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec636364646565666565656463
Data source: Temperature data for San Mateo 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.

July Precipitation in San Mateo

In San Mateo in July, the total precipitation amount is 258 mm (10.2 in) spread over 29 days.

July Precipitation Trends in San Mateo

The chart displays monthly precipitation patterns in San Mateo, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In San Mateo, July typically receives around 258 mm (10.2 inches) of precipitation spread over approximately 29 days.
JanFebMarAprMayJunJulAugSepOctNovDec325911024664447725841445737312248
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in San Mateo

In San Mateo in July 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.

July Average Humidity in San Mateo

This chart illustrates the average monthly humidity levels in San Mateo, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in San Mateo is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%59%57%65%66%75%82%82%83%80%76%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in San Mateo

In San Mateo in July, 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 Mateo, you can check here.

Maximum UV Index Levels in San Mateo for July

The chart shows the monthly maximum UV Index (UVI) for San Mateo in July, 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 July, the maximum UV index in San Mateo typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11131415141414141413119
Data source: San Mateo July 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 July Weather in San Mateo Compares to Other Months

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

This table compares monthly weather conditions in San Mateo, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)32 mm (1.2 inches)76%extreme
February Weather17°C (63°F)59 mm (2.3 inches)68%extreme
March Weather18°C (64°F)110 mm (4.3 inches)59%extreme
April Weather18°C (65°F)246 mm (9.7 inches)57%extreme
May Weather18°C (65°F)644 mm (25.4 inches)65%extreme
June Weather18°C (65°F)477 mm (18.8 inches)66%extreme
July Weather19°C (66°F)258 mm (10.2 inches)75%extreme
August Weather18°C (65°F)414 mm (16.3 inches)82%extreme
September Weather18°C (65°F)457 mm (18.0 inches)82%extreme
October Weather18°C (65°F)373 mm (14.7 inches)83%extreme
November Weather18°C (64°F)122 mm (4.8 inches)80%extreme
December Weather17°C (63°F)48 mm (1.9 inches)76%very high

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