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August Weather in San Jose, Guatemala

Last updated: August 23, 2025

In San Jose, Guatemala, the average temperature in August reaches a warm 28°C (84°F), with a minimum of 22°C (71°F) and a scorching maximum of 41°C (106°F). Visitors should be prepared for 142 mm (5.6 in) of precipitation spread across 22 days of the month, and expect an average humidity level of 71%. Perfect for tropical adventures or lazy days by the water!

August Temperature in San Jose

In August in San Jose, the average temperature is 28°C (84°F). Maximum temperatures can reach 41°C (106°F), while the minimum can drop to as low as 22°C (71°F). Be prepared for hot weather and stay hydrated during your travels!

August Weather in San Jose: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose, August typically has an average temperature of 28°C (84°F), with highs reaching up to 41°C (106°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec757982868783838382807775
Data source: Temperature data for San Jose 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.

August Precipitation in San Jose

In San Jose in August, the total precipitation amount is 142 mm (5.6 in) spread over 22 days.

August Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In San Jose, August typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 22 days.
JanFebMarAprMayJunJulAugSepOctNovDec291328241012541191422191848848
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in San Jose

In San Jose in August, humidity is 71%. With an average temperature of 28°C (84°F), this humidity feels like a warm, enveloping blanket that makes traveling slightly uncomfortable, as you can easily become sweaty and fatigued, especially during outdoor activities.

August Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in San Jose is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%73%59%53%54%55%61%71%77%78%82%86%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in San Jose

In San Jose in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Jose.

Maximum UV Index Levels in San Jose for August

The chart shows the monthly maximum UV Index (UVI) for San Jose in August, 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 August, the maximum UV index in San Jose typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111314131313131312108
Data source: San Jose August 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 August Weather in San Jose Compares to Other Months

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

This table compares monthly weather conditions in San Jose, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)29 mm (1.1 inches)84%very high
February Weather26°C (79°F)12 mm (0.5 inches)73%extreme
March Weather28°C (82°F)28 mm (1.1 inches)59%extreme
April Weather30°C (87°F)24 mm (0.9 inches)52%extreme
May Weather30°C (87°F)101 mm (4.0 inches)53%extreme
June Weather28°C (83°F)254 mm (10.0 inches)55%extreme
July Weather28°C (83°F)119 mm (4.7 inches)61%extreme
August Weather28°C (84°F)142 mm (5.6 inches)71%extreme
September Weather28°C (82°F)219 mm (8.6 inches)77%extreme
October Weather27°C (80°F)184 mm (7.2 inches)78%extreme
November Weather25°C (77°F)88 mm (3.5 inches)82%very high
December Weather24°C (76°F)48 mm (1.9 inches)86%very high

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