SeasonMapSirmione (Lake Garda) weather in May
Italy
May in Sirmione: nice, rainy, with clean air — one of the best months to visit.
#1 of 12 months in Sirmione · #348 of 1383 destinations to visit in May · comfort 87/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sirmione in May
Other months in Sirmione
Sirmione's forum calls September a sweet spot for weather — warm, swimmable and with clearer blue skies than the summer heat haze — but warns the town itself stays genuinely busy, with locals as well as tourists making a weekend trip to the lake if the forecast looks good. Regulars suggest avoiding Sirmione specifically on weekends, even late in the month, if a quieter visit matters more than the crowds.
Add your own note from Sirmione's card on the map.
Sirmione climate normals — May
| Daytime high | 21°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 56°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 131 mm / 5.1 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 73% | 💧 humid |
| Dew point | 12°C / 53°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 14.9 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 50 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Sirmione in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyBank-holiday crush, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Sirmione's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSirmione's best weather comes in April, May and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Sirmione in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Opening
Lake season opens
20 Mar – 1 May · usuallySummer season opensHotels reopen around Easter, the lake boats to Desenzano and Garda restart and the Grotte di Catullo goes back to summer hours. Before that the peninsula is a spa town and little else. Source ↗
- Season
Peler and ora
1 Apr – 30 Sep · usuallyWind seasonGarda runs on two daily winds: the peler down the lake from the north in the early morning, the ora back up it from around midday. Every sailing and windsurf school here plans the day around them.
- Season
Bank-holiday crush
20 Apr – 5 Jun · usuallyNational holidayCrowdedOn the Italian long weekends at the end of April and start of June a town of eight thousand takes tens of thousands of day visitors, and the queue for the castle drawbridge has run to forty minutes.
Nearby, and something's on
Within 300 km of Sirmione — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Sirmione?
Sirmione in May — FAQ
- Is May a good time to visit Sirmione?
- May in Sirmione: nice, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Sirmione on SeasonMap's comfort score (87/100).
- What is the weather like in Sirmione in May?
- In May, Sirmione averages a daily high of 21.4°C and a low of 13.6°C, with about 130.6 mm of rain over roughly 17 rainy days.
- What is the air quality in Sirmione in May?
- Sirmione has a mean US Air Quality Index of about 50 in May.
Other months in Sirmione
Warmer or cooler than Sirmione in May
Similar destinations in Southern Europe — May
Within 300 km: Milan's Lake ferries on full timetable around 1 Apr – 15 Oct, and Como's Villa gardens and full boat timetable around 20 Mar – 5 Nov.