September · Italy
Best time to visit Sirmione in September Weather, crowds & prices
Weather in Sirmione in September
Average temperature 20°C, 127 mm of rain, about 13 days with 6+ hours of sunshine and 67% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.2/10
Ranked #6 of 12 months
- Avg temp
- 20°C
- Rainfall
- 127 mm
- Humidity
- 67%
- Days with 6h+ sun
- 13
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Sirmione scores 7.2/10 for sightseeing and cultural travel - an above-average month (#6 of 12). Expect around 20°C, 127 mm of rain, and roughly 13 days with 6+ hours of sunshine this month.
Scaligero Castle, Roman Grotte di Catullo, and thermal springs on Lake Garda's peninsula shine from April through June and September, before summer crowds narrow the old-town lanes.
September in Sirmione: strong conditions, 6th of 12
September averages 20°C (68°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
At 127 mm this is a genuinely wet month: about 13 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 7.2/10 here, 6th of 12 months, against 8.4/10 in the destination's best month.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Plan for mid-season pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Sirmione in September?
- In September, Sirmione averages 20°C, 127 mm of rain, and about 13 days with 6+ hours of sunshine. Its climate-comfort score is 7.2/10.
- Is September a good time to visit Sirmione?
- September earns a 7.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sirmione in September?
- Expect about 127 mm of rain in September. Average humidity is 67% and there are about 13 days with 6+ hours of sunshine.
Curated in Sirmione
Tickets & experiences
Things to do in Sirmione
Sirmione, Italy. Live activities and tours from GetYourGuide, matched to this destination.