Last updated: August 27, 2025
In April, the average temperature in San Marcos, Peru hovers around 5°C (42°F). Expect chilly conditions with minimums dropping to -4°C (24°F) and maximums reaching 14°C (57°F). It's also a month of substantial rainfall, with 159 mm (6.2 in) of precipitation spread over 28 days, and an average humidity of a humid 89%. Prepare accordingly for a cool and damp climate!
In April in San Marcos, the average temperature is 5°C (42°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -4°C (24°F). Travelers should prepare for cool to chilly weather and pack accordingly.
In San Marcos in April, the precipitation amount is 159 mm (6.2 in) during 28 days, indicating a significant volume of rainfall throughout the period.
In San Marcos in April humidity is 89%. With an average temperature of 5°C (42°F), this humidity feels like a chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay warm and comfortable while exploring.
In San Marcos in April, the maximum UV index reaches 19, which corresponds to an extreme exposure category. With a time to burn of just 10 minutes, it’s essential to take precautions. For detailed information, you can check the hourly UV index in San Marcos.
UV Risk Categories
Weather in San Marcos varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in San Marcos, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 5°C (42°F) | 209 mm (8.2 inches) | 88% | extreme |
February Weather | 6°C (42°F) | 224 mm (8.8 inches) | 86% | extreme |
March Weather | 5°C (42°F) | 272 mm (10.7 inches) | 89% | extreme |
April Weather | 5°C (42°F) | 159 mm (6.2 inches) | 89% | extreme |
May Weather | 5°C (41°F) | 101 mm (4.0 inches) | 86% | extreme |
June Weather | 5°C (41°F) | 51 mm (2.0 inches) | 71% | extreme |
July Weather | 4°C (39°F) | 41 mm (1.6 inches) | 44% | extreme |
August Weather | 4°C (40°F) | 55 mm (2.2 inches) | 34% | extreme |
September Weather | 4°C (40°F) | 114 mm (4.5 inches) | 37% | extreme |
October Weather | 5°C (41°F) | 179 mm (7.0 inches) | 50% | extreme |
November Weather | 6°C (42°F) | 194 mm (7.6 inches) | 73% | extreme |
December Weather | 6°C (42°F) | 232 mm (9.1 inches) | 91% | extreme |