Weather in São Tomé in September
São Tomé, São Tomé and Príncipe averages a high of 26.6°C (79.9°F) and low of 24.4°C (75.9°F) in September, with 13 rain days and 9.5 hours of daily sunshine. Travel score: 74.1/100 (Good). The best time to visit São Tomé is July.
High
27°C80°F
Low
24°C76°F
🌧️
13
rain days
☀️
9.5
hrs/day sunshine
💧
83%
humidity
74— Good
September in São Tomé is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in São Tomé?
How much does it rain in São Tomé in September?
São Tomé receives an average of 106.9mm of rainfall across 13 rainy days in September. The annual total is 1645.7mm.
What should I pack for São Tomé 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
Traveling to São Tomé and Príncipe 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