Last updated: August 22, 2025
In San Isidro, Argentina, the average temperature in May is a comfortable 15°C (59°F). Expect a minimum of 4°C (39°F) and a pleasant maximum of 25°C (77°F). During this month, precipitation typically accumulates to 80 mm (3.2 in), spread over 7 days, contributing to an average humidity of 85%.
In May in San Isidro, the average temperature is 15°C (59°F). The maximum can reach 25°C (77°F), and the minimum can be as low as 4°C (39°F). This mild climate makes it an ideal time for travelers to explore the outdoor attractions and enjoy the scenery without extreme weather conditions.
In San Isidro in May, the total precipitation amount is 80 mm (3.2 in) over the course of 7 days.
In San Isidro in May, humidity is 85%. With an average temperature of 15°C (59°F), this humidity feels like a warm, damp blanket wrapping around you, making traveling quite uncomfortable and sticky. Be prepared to take frequent breaks and stay hydrated as you navigate the lush, but humid environment.
In San Isidro in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, 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 May’s weather to other months in San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (77°F) | 59 mm (2.3 inches) | 50% | extreme |
| February Weather | 23°C (75°F) | 72 mm (2.9 inches) | 61% | extreme |
| March Weather | 22°C (71°F) | 77 mm (3.0 inches) | 66% | extreme |
| April Weather | 19°C (66°F) | 82 mm (3.2 inches) | 80% | high |
| May Weather | 15°C (59°F) | 80 mm (3.2 inches) | 85% | moderate |
| June Weather | 12°C (54°F) | 66 mm (2.6 inches) | 80% | moderate |
| July Weather | 11°C (52°F) | 75 mm (3.0 inches) | 69% | moderate |
| August Weather | 12°C (55°F) | 51 mm (2.0 inches) | 66% | high |
| September Weather | 15°C (59°F) | 86 mm (3.4 inches) | 72% | very high |
| October Weather | 17°C (63°F) | 103 mm (4.1 inches) | 63% | very high |
| November Weather | 21°C (69°F) | 77 mm (3.0 inches) | 59% | extreme |
| December Weather | 23°C (73°F) | 66 mm (2.6 inches) | 56% | extreme |