What is the weather like in Palermo vs Siena in September?

In September, Palermo averages 27°C high / 22°C low with about 55 mm of rain; Siena averages 25°C high / 15°C low with about 93 mm.

Palermo vs Siena in September

Siena is the better pick in September — 90 vs 82 on SeasonMap's comfort score. Siena is warm, rainy, clean air, while Palermo is hot, a little rain, clean air.

Palermo vs Siena — September climate, side by side

	🇮🇹 Palermo	🇮🇹 Siena
Comfort score	82/100 (A)	90/100 (S)
Feels-like high	29°C	25°C
Avg high / low	27° / 22°	25° / 15°
Rainfall	55 mm	93 mm
Rainy days	9	9
Humidity	73%	71%
Air quality (AQI)	47	41

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

Month by month

Palermo 🇮🇹 Italyhot, a little rain, clean air · best April82
Siena 🇮🇹 Italywarm, rainy, clean air · best June90

Palermo vs Siena in September — FAQ

Is September better in Palermo or Siena?: Siena is the better pick in September — 90 vs 82 on SeasonMap's comfort score. Siena is warm, rainy, clean air, while Palermo is hot, a little rain, clean air.
What is the weather like in Palermo vs Siena in September?: In September, Palermo averages 27°C high / 22°C low with about 55 mm of rain; Siena averages 25°C high / 15°C low with about 93 mm.