Montevideo Weather in September

September in Montevideo brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 95 mm (3.7 in), so pack an umbrella.

Rainfall in Montevideo in September

Past climate data indicates that roughly 9 days will see rain, totalling around 95 mm (3.7 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Montevideo in September

If you're visiting Montevideo in September, expect highs of 18°C (64°F) and overnight lows around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 10°C (50°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Montevideo in September

The area enjoys a balanced 183 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Montevideo in September

Wind speeds average 6 m/s (12 knots) during September. At this speed, expect strong winds that make large branches move and create some resistance when walking. Since this is an average, some days have fresh winds while others have strong breezes that can make umbrellas tricky to control.

Average water temperature in September

At 13°C (55°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, March and December typically offer the best weather for Montevideo.