San Gimignano enjoys a classic inland Mediterranean climate with hot, dry summers and cool, wetter winters. Summer highs reach 29–31°C, while winter lows can drop to 2–4°C. Rain falls year-round, peaking in autumn, while sunshine is most abundant from May to August. The town’s climate is ideal for outdoor exploration in spring and autumn.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
San Gimignano’s climate features four distinct seasons and marked temperature swings. Summers (June–August) are hot and mostly dry, with average highs of 29–31°C and lows around 17–19°C. July and August are the sunniest months, each offering up to 10–12 hours of sunshine daily and only 4–6 days of rain per month. The dry air and long daylight hours make this period perfect for outdoor dining and exploring the town’s medieval streets, though it is also the busiest tourist season. Occasional heatwaves can push temperatures above 35°C, but breezes from the surrounding hills provide some relief.
Winters (December–February) are cool and wetter, with average highs of 10–12°C and lows dipping to 2–4°C. Snow is rare but possible, and frosty mornings are frequent. Rainfall is moderate, with November being the wettest month (up to 132 mm and 11–14 rainy days), while July is the driest (about 32–34 mm and 4–6 rainy days). Spring (March–May) and autumn (September–November) are transitional, bringing mild to warm temperatures (16–25°C), blooming landscapes, and variable rainfall. These seasons offer comfortable weather, fewer crowds, and vibrant countryside colours. San Gimignano receives about 970 mm of rain annually and enjoys 2,400–2,500 hours of sunshine, with winds generally light but picking up during storms, especially in autumn and winter.
| Average climate data for San Gimignano, Italy | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 8 | 9 | 13 | 17 | 21 | 26 | 29 | 30 | 25 | 19 | 13 | 10 | 30 |
| Average minimum temperature (°C) | 2 | 3 | 5 | 7 | 9 | 13 | 16 | 17 | 13 | 10 | 7 | 3 | 2 |
| Average precipitation (mm) | 28 | 34 | 30 | 32 | 35 | 35 | 20 | 22 | 27 | 34 | 58 | 39 | 393 |
| Average rainfall days (days) | 12 | 13 | 12 | 14 | 14 | 11 | 9 | 8 | 10 | 11 | 12 | 12 | 137 |
| Average snowfall (mm) | 5 | 10 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 26 |
| Average snowfall days (days) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| Average relative humidity (%) | 80 | 81 | 77 | 73 | 76 | 71 | 65 | 64 | 72 | 76 | 83 | 81 | 75 |
| Average wind speed (km/h) | 9 | 10 | 11 | 9 | 8 | 7 | 8 | 7 | 8 | 8 | 9 | 8 | 9 |
| Average daily daylight hours (h) | 9 | 10 | 11 | 13 | 14 | 15 | 15 | 13 | 12 | 11 | 9 | 9 | 12 |
| Average daily sunshine hours (h) | 5 | 5 | 7 | 9 | 10 | 11 | 11 | 11 | 10 | 6 | 5 | 5 | 8 |
| Average cloud coverage (%) | 45 | 46 | 39 | 35 | 31 | 22 | 13 | 14 | 25 | 34 | 44 | 42 | 32 |
| Average UV index | 2 | 2 | 4 | 4 | 5 | 6 | 6 | 6 | 5 | 4 | 3 | 2 | 4 |
The best time to visit San Gimignano is from May to June and September to October, when temperatures are warm (20–26°C), rainfall is moderate, and the countryside is vibrant. These shoulder months offer pleasant weather for sightseeing, wine tasting, and outdoor dining, with fewer crowds than the peak summer season.
The least favourable time to visit is from November to February, when days are shortest, temperatures are coolest (highs of 10–12°C, lows of 2–4°C), and rain is most frequent. Some attractions and restaurants may close, but the town is quieter and offers a peaceful, authentic experience.
San Gimignano has hot, dry summers (highs 29–31°C) and cool, wetter winters (highs 10–12°C, lows 2–4°C). Rain falls year-round, peaking in autumn, while summer is the sunniest and driest season.
Snow is rare in San Gimignano, but frosts are common in winter. Most winter precipitation falls as rain, and any snow that does occur usually melts quickly.
July and August are the sunniest months, with up to 10–12 hours of sunshine daily and long daylight hours. Even in spring and autumn, San Gimignano enjoys several hours of sun per day.
San Gimignano receives about 970 mm of rain annually, with the wettest months in autumn (especially November). July is the driest month, with only 32–34 mm of rain and few rainy days.
Pack light, breathable clothes and sun protection for summer, layers and a rain jacket for spring and autumn, and a warm coat for winter evenings. Comfortable shoes are useful year-round for exploring the town’s hilly streets.
Winds are generally light but can pick up during storms, especially in autumn and winter. Breezes from the hills help moderate summer heat, but wind is rarely disruptive for visitors.
San Gimignano is least crowded in winter (November–February) and early spring. These periods offer quieter attractions and better prices, but weather may be cooler and some services limited.
The warmest month, with the highest average maximum temperature, is August (30.3 °C). The month with the lowest average maximum temperature is January (8 °C). Overall, the average maximum temperature over the whole year is 18.4 °C.
The month with the highest average minimum temperature is August (16.8 °C). The coldest month, with the lowest average minimum temperature, is January (1.8 °C). Overall, the average minimum temperature over the whole year is 8.9 °C.
The wettest month, with the highest amount of precipitation, is November (58 mm). The driest month, with the least amount of precipitation, is July (19.8 mm). Over the whole year there are 393.3 mm of rainfall on average.
The month with the most days of rain is May (13.7 days). The month with the fewest days of rain is August (7.6 days). Over the whole year there are 137 days of rain on average.
The month with the most snowfall is February (10.1 mm). The months with the least snowfall are April, May, June, July, August, September, October and November (0 mm). Over the whole year there are 26 mm of snowfall on average.
The month with the most days of snowfall is February (1.2 days). The months with the fewest days of snowfall are April, May, June, August, September, October and November (0 days). Over the whole year there are 2.6 days of snowfall on average.
The month with the highest average relative humidity is November (83.4 %). The month with the lowest average relative humidity is August (64.1 %). The overall average relative humidity over the whole year is 74.9 %.
The windiest month, with the highest average wind speed, is March (10.5 km/h). The calmest month, with the lowest average wind speed, is August (7.3 km/h). The overall average wind speed over the whole year is 8.5 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is February (46 %). The month with the clearest skies, so the lowest cloud coverage, is July (13.4 %). Over the whole year there is an average cloud coverage of 32.5 %.
The month with the longest days, so the most daylight, is June (Average daylight: 15 h). The month with the shortest days, so the least daylight, is December (Average daylight: 9 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is June (Average sunshine: 11 h). The month with the least sunshine per day is November (Average sunshine: 4.9 h). Over the whole year there are 7.9 h of sunlight per day on average.
The months with the highest average UV index are June, July and August (UV index: 6). The months with the lowest average UV index are January, February and December (UV index: 2). Over the whole year the average UV index is 4.1.
