Weather in São Tomé e Príncipe in setembro
Country-wide climate normals across 15 cities in São Tomé e Príncipe.
How Hot Is São Tomé e Príncipe in setembro?
Uniform warmth covers São Tomé e Príncipe in September: highs near 27°C across all cities.
Sunshine in São Tomé e Príncipe in setembro
Dark, overcast days dominate São Tomé e Príncipe 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 e Príncipe In setembro?
Heavy seasonal rains saturate São Tomé e Príncipe in September — São Tomé averages 240mm of rain across 24 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is São Tomé e Príncipe Humid In setembro?
São Tomé e Príncipe 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 São Tomé e Príncipe In setembro
Gentle steady winds define São Tomé e Príncipe'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 e Príncipe In setembro
São Tomé e Príncipe'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.