Weather in Sao Tomé och Principe in september
Country-wide climate normals across 15 cities in Sao Tomé och Principe.
How Hot Is Sao Tomé och Principe in september?
Uniform warmth covers Sao Tomé och Principe in September: highs near 27°C across all cities.
Sunshine in Sao Tomé och Principe in september
Dark, overcast days dominate Sao Tomé och Principe in September — São Tomé sees just 1.0h of sun a day, and the pattern is similar across most regions. Cloud cover is heavy and persistent, with even the brighter regions struggling to escape the gloom for long.
Does It Rain In Sao Tomé och Principe In september?
Monsoon-like conditions dominate Sao Tomé och Principe's September: São Tomé sees 240mm of rain across 24 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is Sao Tomé och Principe Humid In september?
Sao Tomé och Principe is enveloped in tropical-thick humidity through September: São Tomé averages 82%, and most of the country tracks similarly. The constant moisture makes warm temperatures feel substantially hotter, and even nights bring limited cooling. Light cotton clothing is essential.
Wind In Sao Tomé och Principe In september
Sao Tomé och Principe's September has gentle wind — São Tomé averages 16 kph, and the country tracks similarly. Outdoor activity is comfortable, and afternoon thermals add a pleasant breeze in inland areas.
Cloud Cover In Sao Tomé och Principe In september
Heavy overcast covers Sao Tomé och Principe in September: 79% cloud cover in São Tomé, with similar grey conditions in most regions. Direct sun is rare, and the pattern is persistent across the country. Coastal and northern regions feel especially heavy.