The best months to visit Genoa are May, June, September and October, when average highs sit comfortably in the low-to-mid 20s and the crowds thin out around the Porto Antico. June brings average highs of 25.4 °C with just 10 rain days, while September matches it closely at 25 °C and 10 rain days — ideal for exploring on foot. July and August are peak season, hot and crowded with school-holiday visitors and higher prices. Winter is the quiet low season: mild but duller, with December the least sunny month.
Best months MayJuneSeptemberOctober
Genoa month by month
Average highs and lows (°C), 2016–2025. Highlighted bars are the best months.
| Month | High | Low | Rain days | Sunshine | Days ≥30 °C | Sea | Crowds |
|---|---|---|---|---|---|---|---|
| January | 11.1 °C | 5 °C | 11 | ●●●●● | – | 15 °C | ●●●●● |
| February | 12.6 °C | 6.3 °C | 12 | ●●●●● | – | 14 °C | ●●●●● |
| March | 14.8 °C | 7.5 °C | 12 | ●●●●● | – | 14 °C | ●●●●● |
| April | 17.8 °C | 10.3 °C | 11 | ●●●●● | – | 16 °C | ●●●●● |
| May | 20.7 °C | 13.9 °C | 16 | ●●●●● | – | 19 °C | ●●●●● |
| June | 25.4 °C | 18.6 °C | 10 | ●●●●● | 3 | 23 °C | ●●●●● |
| July | 28 °C | 20.8 °C | 8 | ●●●●● | 7 | 26 °C | ●●●●● |
| August | 29.2 °C | 21.2 °C | 9 | ●●●●● | 12 | 27 °C | ●●●●● |
| September | 25 °C | 17.5 °C | 10 | ●●●●● | 2 | 24 °C | ●●●●● |
| October | 20.3 °C | 13.9 °C | 13 | ●●●●● | – | 21 °C | ●●●●● |
| November | 14.8 °C | 9.2 °C | 13 | ●●●●● | – | 19 °C | ●●●●● |
| December | 12 °C | 6.1 °C | 11 | ●●●●● | – | 16 °C | ●●●●● |
How the months are picked.A month qualifies when its average high sits in the comfortable 20–28 °C band (scored down towards 9 °C and 37 °C), rain days are few and sunshine hours are high — at least 78 % of the city's best-scoring month. July and August are then set aside as peak season (school-holiday crowds and prices) whenever at least three other months qualify; where summer is the only comfortable window they stay. Figures are ten-year averages (2016-01-01 to 2025-12-31) from ERA5 reanalysis data via Open-Meteo (CC BY 4.0) for the city centre coordinates. Sunshine is shown relative to the city's own year (modelled data overstates absolute hours).Heat and sea: days with a high of 30 °C or more are averaged over 2016–2025 (ERA5); sea-surface temperature is the monthly mean 2022–2025 at the nearest open-sea grid point within about 20 km (Open-Meteo Marine).Crowds:Relative to an average month in the same region (Eurostat nights spent at tourist accommodation, by NUTS 2 region and month) — a measure of season, not of how crowded one city is compared with another. Busiest month August, quietest November; NUTS 2 region ITC3, 2022–2025, Eurostat.
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When to go, and what to expect
Spring (Mar–May)
Great for sightseeing in comfort — May is a top pick despite more rain days.
Summer (Jun–Aug)
June is excellent; July and August suit beach-goers who don't mind the heat and bustle.
Autumn (Sep–Nov)
September and October are prime — warm sea, fewer people, easy wandering.
Winter (Dec–Feb)
Low season — fine for a city break and festive atmosphere if you accept duller, cooler days.
Notable events
- September
- Genoa Boat Show (Salone Nautico)
- March or April
- Easter processions and Holy Week
- December
- Christmas markets and festivities around the Porto Antico
- Spring and autumn
- Rolli Days (open palace weekends)
Frequently asked
Is Genoa too hot in August?
August is the hottest month, with average highs of 29.2 °C and lows of 21.2 °C. It's manageable near the coast but warm and crowded; June (25.4 °C) or September (25 °C) are more comfortable.
What is the rainiest month in Genoa?
May records the most rain days at 16, followed by October and November at 13. July is the driest with 8 rain days.
Is winter worth visiting Genoa?
Winter is mild, with January highs of 11.1 °C, but December is the least sunny month. It's the quiet low season — good for a calm city break, less so for coastal weather.
Know when to go? Now decide where to stay — our Genoa area guide →
Areas of Genoa
Best time to visit near here
Sources
- Open-Meteo historical weather API — monthly climate normals, 2016–2025 (CC BY 4.0)
- ERA5 reanalysis (ECMWF / Copernicus) — the underlying temperature, precipitation and sunshine data
- ReasonStay methodology — how the best months are computed and checked
An independent guide to Genoa — honest, verified, no invented data. Climate figures: ERA5 via Open-Meteo, 2016–2025 averages; the best months are computed from them, not opinion.