Montevideo weather in August
August in Montevideo: cool, a little rain, with clean air — an excellent time to visit.
#10 of 12 months in Montevideo · #295 of 604 destinations to visit in August · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Montevideo climate normals — August
| Daytime high | 15°C / 58°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Feels like (high) | 13°C / 55°F | |
| Rainfall | 49 mm / 1.9 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 8.4 h/day | |
| Daylight | 10.9 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Montevideo in August — FAQ
- Is August a good time to visit Montevideo?
- August in Montevideo: cool, a little rain, with clean air — an excellent time to visit. It ranks #10 of 12 months for Montevideo on SeasonMap's comfort score (80/100).
- What is the weather like in Montevideo in August?
- In August, Montevideo averages a daily high of 14.7°C and a low of 9.4°C, with about 49.3 mm of rain over roughly 4.6 rainy days.
- What is the air quality in Montevideo in August?
- Montevideo has a mean US Air Quality Index of about 32 in August.