SeasonMapSirmione (Lake Garda) weather by month
Italy
The best time to visit Sirmione (Lake Garda) is April, May and September — 87/100 in May, 21°C and 17 rainy days. The best season is spring, March to May (83/100 on average).
The worst month is December at 60/100 — cold, a little rain, muggy air. See December →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Italy →
Sirmione, month by month
Comfort score out of 100 for the kind of trip Sirmione is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 63 | C | 8°C | 6 d | 7 h | Busy | 1 |
| FebFebruary | 67 | C | 11°C | 8 d | 7 h | Shoulder | 1 |
| MarMarch | 77 | B | 14°C | 9 d | 9 h | Shoulder | 2 |
| AprApril | 84 | A | 18°C | 11 d | 11 h | Peak | 3 |
| MayMay | 87 | A | 21°C | 17 d | 11 h | Busy | 3 |
| JunJune | 82 | A | 27°C | 12 d | 13 h | Peak | 3 |
| JulJuly | 76 | B | 29°C | 13 d | 13 h | Busy | 2 |
| AugAugust | 74 | B | 29°C | 12 d | 12 h | Peak | 3 |
| SepSeptember | 87 | A | 25°C | 11 d | 10 h | Busy | 2 |
| OctOctober | 80 | A | 19°C | 10 d | 8 h | Shoulder | 1 |
| NovNovember | 66 | C | 13°C | 9 d | 6 h | Quiet | 2 |
| DecDecember | 60 | C | 9°C | 7 d | 6 h | Busy | 1 |
What's on in Sirmione through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- March
- Lake season opens20 Mar – 1 May (usually)Opening
- April
- Peler and ora1 Apr – 30 Sep (usually)Season
- Bank-holiday crush20 Apr – 5 Jun (usually)Season
- June
- Lake warm enough to swim20 Jun – 15 Sep (usually)Season
- August
- Ferragosto8–22 AugHoliday
- October
- Garda olive harvest15 Oct – 30 Nov (usually)Nature
- November
- Hotels shut for winter15 Nov – 15 MarClosure
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