What is the weather like in Gramado vs Ilha Grande in September?

In September, Gramado averages 20°C high / 11°C low with about 194 mm of rain; Ilha Grande averages 18°C high / 14°C low with about 76 mm.

Gramado vs Ilha Grande in September

Ilha Grande is the better pick in September — 85 vs 77 on SeasonMap's comfort score. Ilha Grande is nice, a little rain, muggy air, while Gramado is nice, soaked, clean air.

Gramado vs Ilha Grande — September climate, side by side

	🇧🇷 Gramado	🇧🇷 Ilha Grande
Comfort score	77/100 (B)	85/100 (A)
Feels-like high	20°C	18°C
Avg high / low	20° / 11°	18° / 14°
Rainfall	194 mm	76 mm
Rainy days	13	11
Humidity	81%	81%
Air quality (AQI)	48	76

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

Month by month

Gramado vs Ilha Grande in September — FAQ

Is September better in Gramado or Ilha Grande?: Ilha Grande is the better pick in September — 85 vs 77 on SeasonMap's comfort score. Ilha Grande is nice, a little rain, muggy air, while Gramado is nice, soaked, clean air.
What is the weather like in Gramado vs Ilha Grande in September?: In September, Gramado averages 20°C high / 11°C low with about 194 mm of rain; Ilha Grande averages 18°C high / 14°C low with about 76 mm.