Last updated: August 22, 2025
In May, the average temperature in San Justo, Argentina hovers around 15°C (59°F). Expect variations, with a minimum of 1°C (33°F) and a maximum reaching up to 29°C (84°F). During this period, you'll likely encounter precipitation measuring 97 mm (3.8 in) over approximately 8 days, contributing to a high average humidity of 85%.
In May in San Justo, the average temperature is 15°C (59°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as 1°C (33°F). This diverse climate makes it an ideal time for travelers to experience a range of outdoor activities and enjoy the beauty of the season.
In San Justo in May, the total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 days.
In San Justo 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 Justo 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 Justo.
UV Risk Categories
Weather in San Justo varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Justo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (78°F) | 125 mm (4.9 inches) | 54% | extreme |
| February Weather | 24°C (75°F) | 103 mm (4.1 inches) | 61% | extreme |
| March Weather | 22°C (71°F) | 95 mm (3.7 inches) | 69% | extreme |
| April Weather | 19°C (67°F) | 94 mm (3.7 inches) | 79% | very high |
| May Weather | 15°C (59°F) | 97 mm (3.8 inches) | 85% | moderate |
| June Weather | 12°C (55°F) | 72 mm (2.9 inches) | 82% | moderate |
| July Weather | 11°C (53°F) | 59 mm (2.3 inches) | 69% | moderate |
| August Weather | 13°C (56°F) | 81 mm (3.2 inches) | 65% | high |
| September Weather | 16°C (61°F) | 90 mm (3.5 inches) | 70% | very high |
| October Weather | 18°C (65°F) | 112 mm (4.4 inches) | 63% | extreme |
| November Weather | 22°C (72°F) | 71 mm (2.8 inches) | 60% | extreme |
| December Weather | 24°C (75°F) | 128 mm (5.0 inches) | 63% | extreme |