Ilha Grande vs Santiago in September

Ilha Grande and Santiago are nearly tied in September — 85 vs 83 on SeasonMap's comfort score. Ilha Grande is nice, a little rain, muggy air; Santiago is nice, a little rain.

Ilha Grande vs SantiagoSeptember climate, side by side

Ilha GrandeSantiago
Comfort score85/100 (A)83/100 (A)
Feels-like high18°C20°C
Avg high / low18° / 14°21° / 5°
Rainfall76 mm42 mm
Rainy days116
Humidity81%66%
Air quality (AQI)7696

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Ilha Grande vs Santiago in September — FAQ

Is September better in Ilha Grande or Santiago?
Ilha Grande and Santiago are nearly tied in September — 85 vs 83 on SeasonMap's comfort score. Ilha Grande is nice, a little rain, muggy air; Santiago is nice, a little rain.
What is the weather like in Ilha Grande vs Santiago in September?
In September, Ilha Grande averages 18°C high / 14°C low with about 76 mm of rain; Santiago averages 21°C high / 5°C low with about 42 mm.