Last updated: August 28, 2025
In San Javier, Uruguay, the average temperature in May hovers around 15°C (59°F), with a minimum of 1°C (35°F) and a maximum of 28°C (83°F). Expect about 93 mm (3.7 in) of precipitation spread over 6 days, and be prepared for a high average humidity of 85%.
In May in San Javier, the average temperature is 15°C (59°F). Maximums can reach 28°C (83°F), and minimums can be as low as 1°C (35°F). Be sure to pack accordingly to enjoy both warm days and cool evenings during your travels!
In San Javier in May, the precipitation amount is 93 mm (3.7 in) over the course of 6 days.
In San Javier 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 Javier 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 Javier.
UV Risk Categories
Weather in San Javier varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Javier, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (78°F) | 119 mm (4.7 inches) | 54% | extreme |
| February Weather | 24°C (75°F) | 92 mm (3.6 inches) | 61% | extreme |
| March Weather | 22°C (72°F) | 91 mm (3.6 inches) | 69% | extreme |
| April Weather | 19°C (67°F) | 89 mm (3.5 inches) | 79% | very high |
| May Weather | 15°C (59°F) | 93 mm (3.7 inches) | 85% | moderate |
| June Weather | 13°C (55°F) | 69 mm (2.7 inches) | 82% | moderate |
| July Weather | 12°C (53°F) | 55 mm (2.2 inches) | 69% | moderate |
| August Weather | 13°C (56°F) | 83 mm (3.3 inches) | 65% | high |
| September Weather | 16°C (61°F) | 98 mm (3.9 inches) | 70% | very high |
| October Weather | 18°C (65°F) | 102 mm (4.0 inches) | 63% | extreme |
| November Weather | 22°C (72°F) | 69 mm (2.7 inches) | 60% | extreme |
| December Weather | 24°C (75°F) | 115 mm (4.5 inches) | 63% | extreme |