Last updated: August 27, 2025
In San Juan, Peru, the average temperature in April hovers around 13°C (55°F). You can expect a minimum of 6°C (43°F) and a maximum of 19°C (67°F). With an average precipitation of 125 mm (4.9 in) spread across 27 days, umbrella ready is a must! Additionally, prepare for a high average humidity of 89%, creating that signature moist atmosphere.
In April in San Juan, the average temperature is 13°C (55°F). The maximum can reach 19°C (67°F), while the minimum can be as low as 6°C (43°F). This mild climate makes it an ideal time for travelers to explore the beauty of San Juan.
In San Juan in April, the precipitation amount is 125 mm (4.9 in) spread over 27 days.
In San Juan in April humidity is 89%. With an average temperature of 13°C (55°F), this humidity feels like a thick, damp blanket enveloping you, making every step feel heavier and each breath a bit more laborious for traveling.
In San Juan in April, the maximum UV index reaches an alarming 17, which falls under the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to stay protected. For more details on the hourly UV index in San Juan, you can check 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 | 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 |