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July Weather in San Mateo, Peru

Last updated: August 27, 2025

In July, the average temperature in San Mateo, Peru hovers around 2°C (35°F), with a minimum drop to -6°C (22°F) and a pleasant maximum of 11°C (53°F). Expect 44 mm (1.7 in) of precipitation spread over 12 days, contributing to an average humidity of 47%.

July Temperature in San Mateo

In July in San Mateo, the average temperature is 2°C (35°F), with maximums reaching up to 11°C (53°F) and minimums dropping as low as -6°C (22°F). This cool climate makes it essential to pack warm clothing for your trip.

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 2°C (35°F), with highs reaching up to 11°C (53°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec383838383736353637373839
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 amounts to 44 mm (1.7 in) over the course of 12 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 44 mm (1.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec220251291164124504459120174232244
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 47%. With an average temperature of 2°C (35°F), this humidity feels like a crisp chill in the air, making travel invigorating yet brisk, as you experience the refreshing bite of the cold combined with a hint of dampness that adds a layer of texture to the atmosphere.

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 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%91%89%85%65%47%38%40%56%76%90%
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.
JanFebMarAprMayJunJulAugSepOctNovDec201920181413141517182018
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 Weather3°C (38°F)220 mm (8.7 inches)91%extreme
February Weather3°C (39°F)251 mm (9.9 inches)90%extreme
March Weather3°C (38°F)291 mm (11.5 inches)91%extreme
April Weather3°C (38°F)164 mm (6.5 inches)89%extreme
May Weather3°C (37°F)124 mm (4.9 inches)85%extreme
June Weather2°C (36°F)50 mm (2.0 inches)65%extreme
July Weather2°C (35°F)44 mm (1.7 inches)47%extreme
August Weather2°C (36°F)59 mm (2.3 inches)38%extreme
September Weather3°C (37°F)120 mm (4.7 inches)40%extreme
October Weather3°C (38°F)174 mm (6.8 inches)56%extreme
November Weather4°C (39°F)232 mm (9.1 inches)76%extreme
December Weather4°C (39°F)244 mm (9.6 inches)90%extreme

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