Last updated: August 27, 2025
In San Isidro, Peru, the average temperature in January hovers around 26°C (78°F), with minimums dipping to 22°C (71°F) and maximums rising to a warm 34°C (94°F). Expect a fair share of rain, as the area receives about 275 mm (10.8 in) of precipitation spread over 24 days. With an average humidity of 83%, it's best to stay hydrated and enjoy the tropical atmosphere!
In January in San Isidro, the average temperature is 26°C (78°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 22°C (71°F). This pleasant weather makes it an ideal time for travelers to explore, enjoy outdoor activities, and soak in the local culture.
In San Isidro in January, the total precipitation amount is 275 mm (10.8 in) over the course of 24 days.
In San Isidro in January, humidity is 83%. With an average temperature of 26°C (78°F), this humidity feels like a heavy blanket wrapping around you, making travel a sticky affair as sweat lingers on your skin and every step requires extra effort.
In San Isidro in January, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Isidro.
UV Risk Categories
Weather in San Isidro varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 26°C (78°F) | 275 mm (10.8 inches) | 83% | extreme |
February Weather | 26°C (79°F) | 284 mm (11.2 inches) | 78% | extreme |
March Weather | 26°C (79°F) | 329 mm (13.0 inches) | 82% | extreme |
April Weather | 26°C (79°F) | 323 mm (12.7 inches) | 85% | extreme |
May Weather | 26°C (78°F) | 245 mm (9.7 inches) | 91% | extreme |
June Weather | 25°C (78°F) | 186 mm (7.3 inches) | 85% | extreme |
July Weather | 25°C (77°F) | 159 mm (6.3 inches) | 74% | extreme |
August Weather | 26°C (78°F) | 121 mm (4.8 inches) | 59% | extreme |
September Weather | 26°C (79°F) | 175 mm (6.9 inches) | 55% | extreme |
October Weather | 26°C (79°F) | 211 mm (8.3 inches) | 57% | extreme |
November Weather | 26°C (79°F) | 245 mm (9.6 inches) | 74% | extreme |
December Weather | 26°C (79°F) | 322 mm (12.7 inches) | 87% | extreme |