Mendoza Weather in September

September in Mendoza averages 31°C (88°F) during the day and 25°C (77°F) at night. It is the wettest month of the year, with 157 mm (6.2 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Mendoza in September

This month marks the year's heaviest rainfall, with frequent intense showers. It's advisable to be prepared with appropriate rain gear to stay dry. You can expect rain on roughly 14 days based on historical data, averaging 157 mm (6.2 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Mendoza in September

September in Mendoza sees highs of 31°C (88°F) and lows of 25°C (77°F) overnight. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. Keep in mind, these temperatures are averages, and some days might be even warmer. Dress suitably to manage the heat.

Sunshine in Mendoza in September

There are approximately 218 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Mendoza in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Average water temperature in September

The water reaches 29°C (84°F) this month. It's on the warm side, which suits people who prefer that, but don't expect a cooling dip if the air temperature is also high.

September in Mendoza has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.