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July Weather in San Juan, Bolivia

Last updated: August 22, 2025

In July, the average temperature in San Juan, Bolivia is a mild 11°C (51°F). However, temperatures can range from a brisk -7°C (20°F) at night to a warm 26°C (79°F) during the day. Visitors can expect a light drizzle with an average precipitation of 8 mm (0.3 in) over the course of 1 day and a comfortable average humidity of 47%.

July Temperature in San Juan

In July in San Juan, the average temperature is 11°C (51°F). Maximums can reach 26°C (79°F) and minimums can be as low as -7°C (20°F). This variation in temperature makes San Juan a destination where travelers should pack for both warm and cold weather.

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

The chart illustrates July temperature patterns in San Juan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Juan, July typically has an average temperature of 11°C (51°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec605858575552515357606059
Data source: Temperature data for San Juan 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 Juan

In San Juan in July, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

July Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, 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 Juan, July typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec98117933611487284860116
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in San Juan

In San Juan in July humidity is 47%. With an average temperature of 11°C (51°F), this humidity feels like a refreshing coolness, making it comfortable for traveling while requiring a light jacket to stay warm and enjoy outdoor explorations.

July Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, 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 Juan is approximately 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%90%87%82%59%47%43%60%67%71%79%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in San Juan

In San Juan in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Juan.

Maximum UV Index Levels in San Juan for July

The chart shows the monthly maximum UV Index (UVI) for San Juan 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 Juan typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1818161411891214171818
Data source: San Juan 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 Juan Compares to Other Months

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

This table compares monthly weather conditions in San Juan, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (60°F)98 mm (3.9 inches)87%extreme
February Weather15°C (59°F)117 mm (4.6 inches)88%extreme
March Weather14°C (58°F)93 mm (3.7 inches)89%extreme
April Weather14°C (57°F)36 mm (1.4 inches)87%extreme
May Weather13°C (55°F)11 mm (0.4 inches)82%extreme
June Weather11°C (52°F)4 mm (0.2 inches)59%very high
July Weather11°C (51°F)8 mm (0.3 inches)47%very high
August Weather12°C (53°F)7 mm (0.3 inches)43%extreme
September Weather14°C (58°F)28 mm (1.1 inches)60%extreme
October Weather16°C (60°F)48 mm (1.9 inches)67%extreme
November Weather16°C (61°F)60 mm (2.4 inches)71%extreme
December Weather15°C (60°F)116 mm (4.6 inches)79%extreme

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