Last updated: August 27, 2025
In San Juan, Peru, the average temperature in June is a comfortable 12°C (55°F). Visitors can expect a minimum of 1°C (34°F) and a pleasant maximum of 19°C (67°F). With an average humidity of 69%, it's a great time to explore, though be prepared for some rain, as 23 mm (0.9 in) of precipitation can occur over about 6 days.
In June in San Juan, the average temperature is 12°C (55°F). Maximums can reach 19°C (67°F) and minimums can be as low as 1°C (34°F). It's a great time to pack layers and enjoy the mild weather while exploring the sights.
In San Juan in June, the precipitation amount is 23 mm (0.9 in) spread over 6 days.
In San Juan in June, humidity is 69%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that can make outdoor activities feel less enjoyable, requiring travelers to dress in layers and stay occasionally sheltered from the moisture in the air.
In San Juan in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Juan.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 12°C (55°F) | 229 mm (9.0 inches) | 89% | extreme |
| February Weather | 13°C (55°F) | 244 mm (9.6 inches) | 89% | extreme |
| March Weather | 13°C (55°F) | 246 mm (9.7 inches) | 90% | extreme |
| April Weather | 13°C (55°F) | 125 mm (4.9 inches) | 89% | extreme |
| May Weather | 12°C (55°F) | 60 mm (2.3 inches) | 83% | extreme |
| June Weather | 12°C (55°F) | 23 mm (0.9 inches) | 69% | extreme |
| July Weather | 13°C (55°F) | 19 mm (0.7 inches) | 56% | extreme |
| August Weather | 13°C (55°F) | 26 mm (1.0 inches) | 50% | extreme |
| September Weather | 13°C (56°F) | 72 mm (2.9 inches) | 53% | extreme |
| October Weather | 13°C (55°F) | 99 mm (3.9 inches) | 68% | extreme |
| November Weather | 13°C (56°F) | 76 mm (3.0 inches) | 81% | extreme |
| December Weather | 13°C (55°F) | 129 mm (5.1 inches) | 87% | extreme |