What is the weather like in Cascais vs Sintra in September?

In September, Cascais averages 25°C high / 18°C low with about 24 mm of rain; Sintra averages 23°C high / 17°C low with about 24 mm.

Cascais vs Sintra in September

Sintra is the better pick in September — 91 vs 87 on SeasonMap's comfort score. Sintra is warm, dry, clean air, while Cascais is warm, dry, clean air.

Cascais vs Sintra — September climate, side by side

	🇵🇹 Cascais	🇵🇹 Sintra
Comfort score	87/100 (A)	91/100 (S)
Feels-like high	26°C	24°C
Avg high / low	25° / 18°	23° / 17°
Rainfall	24 mm	24 mm
Rainy days	3	3
Humidity	76%	80%
Air quality (AQI)	43	38

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

Month by month

Cascais 🇵🇹 Portugalwarm, dry, clean air · best July87
Sintra 🇵🇹 Portugalwarm, dry, clean air · best August91

Cascais vs Sintra in September — FAQ

Is September better in Cascais or Sintra?: Sintra is the better pick in September — 91 vs 87 on SeasonMap's comfort score. Sintra is warm, dry, clean air, while Cascais is warm, dry, clean air.
What is the weather like in Cascais vs Sintra in September?: In September, Cascais averages 25°C high / 18°C low with about 24 mm of rain; Sintra averages 23°C high / 17°C low with about 24 mm.