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June Weather in San Juan, Peru

Last updated: August 27, 2025

In San Juan, Peru, the average temperature in June hovers around 12°C (54°F), with minimums dipping to 4°C (39°F) and maximums reaching up to 21°C (71°F). Expect approximately 70 mm (2.8 in) of precipitation spread over 12 days, accompanied by an average humidity of 62%.

June Temperature in San Juan

In June in San Juan, the average temperature is 12°C (54°F). Maximum temperatures can reach 21°C (71°F), while minimums can drop as low as 4°C (39°F). This mild climate makes San Juan a great destination for outdoor activities and exploring during this time of year.

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

The chart illustrates June 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, June typically has an average temperature of 12°C (54°F), with highs reaching up to 21°C (71°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec545453545454545454545454
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.

June Precipitation in San Juan

In San Juan in June, the precipitation amount is 70 mm (2.8 in) over the course of 12 days.

June Precipitation Trends in San Juan

The chart displays monthly precipitation patterns in San Juan, 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 Juan, June typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec304392599349189704348154299290413
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in San Juan

In San Juan in June, humidity is 62%. With an average temperature of 12°C (54°F), this humidity feels like a cool, damp embrace, making travel slightly uncomfortable; visitors may find themselves wrapped in light layers as the moisture hangs in the air, creating an atmosphere that's refreshing yet chill.

June Average Humidity in San Juan

This chart illustrates the average monthly humidity levels in San Juan, 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 Juan is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%88%85%78%62%44%38%42%58%69%82%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in San Juan

In San Juan in June, 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 Juan.

Maximum UV Index Levels in San Juan for June

The chart shows the monthly maximum UV Index (UVI) for San Juan 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 Juan typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec171819181513141417181616
Data source: San Juan 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 Juan Compares to Other Months

Weather in San Juan varies notably across the year, with each month offering distinct climate conditions. This page compares June’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 June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)304 mm (12.0 inches)83%extreme
February Weather12°C (54°F)392 mm (15.4 inches)81%extreme
March Weather12°C (53°F)599 mm (23.6 inches)88%extreme
April Weather12°C (54°F)348 mm (13.7 inches)85%extreme
May Weather12°C (54°F)188 mm (7.4 inches)78%extreme
June Weather12°C (54°F)70 mm (2.8 inches)62%extreme
July Weather12°C (54°F)43 mm (1.7 inches)44%extreme
August Weather12°C (55°F)47 mm (1.9 inches)38%extreme
September Weather12°C (54°F)154 mm (6.1 inches)42%extreme
October Weather12°C (54°F)299 mm (11.8 inches)58%extreme
November Weather12°C (54°F)290 mm (11.4 inches)69%extreme
December Weather12°C (54°F)413 mm (16.2 inches)82%extreme

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