Monterrey Weather in September

With daytime temperatures of 30°C (86°F) and nighttime lows of 19°C (66°F), September in Monterrey brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Monterrey in September

Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Historically, approximately 7 days this month are expected to have rain, averaging 150 mm (5.9 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Monterrey in September

Temperatures in Monterrey in September top out at 30°C (86°F) and drop to 19°C (66°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Monterrey in September

The days are predominantly sunny, with an estimated total of around 200 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

September in Monterrey 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.