Last updated: August 27, 2025
In San Juan, Peru, the average temperature in April hovers around 19°C (67°F). Expect a comfortable range, with minimums dipping to 14°C (58°F) and maximums peaking at 25°C (76°F). Precipitation is minimal, averaging just 3 mm (0.1 in) over a mere 0 days, while the atmosphere remains pleasantly humid at 88%.
In April in San Juan, the average temperature is 19°C (67°F). Maximums can reach 25°C (76°F), while minimums can drop as low as 14°C (58°F). This makes it an ideal time for travelers seeking pleasant weather for outdoor activities.
In San Juan in April, the precipitation amount is 3 mm (0.1 in) during a total of 0 days.
In San Juan in April, humidity is 88%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket enveloping you, making travel feel sticky and exhausting as you navigate through the sweltering air.
In San Juan in April, 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.
UV Risk Categories
Weather in San Juan varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Juan, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 21°C (70°F) | 14 mm (0.6 inches) | 85% | extreme |
February Weather | 21°C (71°F) | 11 mm (0.4 inches) | 85% | extreme |
March Weather | 21°C (70°F) | 5 mm (0.2 inches) | 86% | extreme |
April Weather | 19°C (67°F) | 3 mm (0.1 inches) | 88% | extreme |
May Weather | 17°C (63°F) | 5 mm (0.2 inches) | 85% | very high |
June Weather | 16°C (61°F) | 9 mm (0.4 inches) | 78% | very high |
July Weather | 15°C (59°F) | 11 mm (0.4 inches) | 75% | very high |
August Weather | 14°C (58°F) | 6 mm (0.2 inches) | 73% | extreme |
September Weather | 15°C (58°F) | 6 mm (0.2 inches) | 74% | extreme |
October Weather | 15°C (60°F) | 5 mm (0.2 inches) | 78% | extreme |
November Weather | 17°C (63°F) | 4 mm (0.2 inches) | 82% | extreme |
December Weather | 19°C (66°F) | 6 mm (0.2 inches) | 83% | extreme |