Last updated: August 22, 2025
In Rio Grande, Argentina, the average temperature in August hovers around 4°C (39°F). Expect chilly moments, with temperatures dipping as low as -4°C (26°F) and occasionally reaching a maximum of 11°C (53°F). With an average precipitation of 38 mm (1.5 in) over 10 days, and humidity levels sitting at a brisk 86%, it's a month where you might want to keep that umbrella handy!
In August in Rio Grande, the average temperature is 4°C (39°F). Maximums can reach 11°C (53°F), while minimums can drop as low as -4°C (26°F). Travelers should prepare for chilly weather and pack appropriately for both mild and cold conditions.
In Rio Grande in August, the precipitation amount is 38 mm (1.5 in) over the course of 10 days.
In Rio Grande in August humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.
In Rio Grande in August, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Rio Grande, you can check the information here.
UV Risk Categories
Weather in Rio Grande varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Rio Grande, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (51°F) | 49 mm (1.9 inches) | 79% | very high |
| February Weather | 11°C (52°F) | 38 mm (1.5 inches) | 80% | very high |
| March Weather | 10°C (50°F) | 59 mm (2.3 inches) | 82% | high |
| April Weather | 8°C (46°F) | 41 mm (1.6 inches) | 86% | moderate |
| May Weather | 6°C (43°F) | 51 mm (2.0 inches) | 88% | low |
| June Weather | 3°C (38°F) | 32 mm (1.3 inches) | 89% | low |
| July Weather | 3°C (37°F) | 30 mm (1.2 inches) | 89% | low |
| August Weather | 4°C (39°F) | 38 mm (1.5 inches) | 86% | moderate |
| September Weather | 5°C (41°F) | 23 mm (0.9 inches) | 83% | moderate |
| October Weather | 6°C (43°F) | 29 mm (1.1 inches) | 81% | very high |
| November Weather | 8°C (47°F) | 36 mm (1.4 inches) | 79% | extreme |
| December Weather | 10°C (51°F) | 39 mm (1.5 inches) | 79% | very high |