Weather in São Tomé ja Principe in september
Country-wide climate normals across 15 cities in São Tomé ja Principe.
How Hot Is São Tomé ja Principe in september?
São Tomé ja Principe's September is consistently warm — typical 27°C, with no major regional outliers.
Sunshine in São Tomé ja Principe in september
Dark, overcast days dominate São Tomé ja 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 São Tomé ja Principe In september?
Monsoon-like conditions dominate São Tomé ja 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 São Tomé ja Principe Humid In september?
Saturated air defines São Tomé ja Principe's September: humidity at 82% in São Tomé, with the country as a whole feeling muggy and oppressive. The air practically drips after rain, and even shaded outdoor areas feel warm and clammy. Plan indoor time during the most humid afternoon hours.
Wind In São Tomé ja Principe In september
Gentle steady winds define São Tomé ja Principe's September: São Tomé averages 16 kph, with conditions consistent across most regions. The breeze keeps warm days bearable without being a nuisance.
Cloud Cover In São Tomé ja Principe In september
São Tomé ja Principe's September is dominated by overcast skies: São Tomé averages 79% cloud cover, with similar grey persistence across the country. Days feel dim and soft-lit, with little break in the cloud deck.