Weather in São Mateus in September
São Mateus, Brazil averages a high of 26.7°C (80.1°F) and low of 19.9°C (67.8°F) in September, with 9 rain days and 10 hours of daily sunshine. Travel score: 83.2/100 (Excellent). The best time to visit São Mateus is August.
High
27°C80°F
Low
20°C68°F
🌧️
9
rain days
☀️
10
hrs/day sunshine
💧
77%
humidity
83— Excellent
September in São Mateus is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in São Mateus?
How much does it rain in São Mateus in September?
São Mateus receives an average of 38.2mm of rainfall across 9 rainy days in September. The annual total is 1062.6mm.
What should I pack for São Mateus in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 27°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Brazil in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31