Early September 1 September
84°F
Typical afternoon high
19% historical wet-day frequency
Italy · Countryside
Is September a good time?
September averages 79°F afternoons and 75°F seas, with about 6 rain days. Later September is typically cooler.
Historical Toscana regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Florence, Siena, Pisa, Chianti and Lucca; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#5 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
Afternoons around 79°F (26°C): T-shirt weather; nights around 60°F (16°C): light layers. About 13 hours of daylight. About 6 rain days in a typical September.
The sea averages 75°F. Our swimming guide: warm for swimming. Your comfort will vary. This is open water near the coast, not a beach-specific reading.
Monthly coastal averages from NOAA, 2011–2025. Sea temperature is separate from the weather and Overall scores.
The sun rises about 06:54 and sets about 19:28 (local time, mid-month). Mornings start around 60°F (16°C); afternoons reach about 79°F (26°C). Expect rain on about 6 days in a typical September.
Early, middle or late?
Early September is typically warmer. The afternoon high averages 84°F on the 1st, versus 74°F on the 30th. Historical wet-day frequency rises from 19% to 30% between those dates.
84°F
Typical afternoon high
19% historical wet-day frequency
80°F
Typical afternoon high
27% historical wet-day frequency
74°F
Typical afternoon high
30% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 184° | 284° | 383° | 483° | 583° | ||
| 683° | 782° | 882° | 982° | 1082° | 1181° | 1281° |
| 1381° | 1480° | 1580° | 1680° | 1779° | 1878° | 1978° |
| 2078° | 2177° | 2277° | 2377° | 2476° | 2576° | 2675° |
| 2775° | 2875° | 2974° | 3074° |
Afternoon high rain likely (25%+) local school holidays public holiday event
School-holiday dates for September 2027 aren't available in our data yet. A day without a school marker doesn't mean schools are open.
Afternoons cool from about 83°F (28°C) in the first week to 75°F (24°C) in the last. The chance of a wet day runs 19–30%.
Visitor season
Busy season. September averages 64% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Toscana do not measure queues, day visitors or congestion at individual sights. For its size, one of Europe's busiest this month.
Hotel price season
Well above usual. The regional index has no room-rate baseline in euros.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
The hotel-season index is regional (ISTAT, NIC consumer price index for accommodation services (ECOICOP 112), by region); the country price level is national. Neither is a room quote.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 74°F (24°C) and 83°F (29°C); in 12 of them they were within 3°F (1.5°C) of the typical 79°F (26°C). Rain days ranged from 4 to 12; half the years had 5–11.
Rain days in each September
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 83°F | 4 |
| 2012 | 78°F | 11 |
| 2013 | 79°F | 7 |
| 2014 | 77°F | 9 |
| 2015 | 77°F | 5 |
| 2016 | 81°F | 5 |
| 2017 | 74°F | 11 |
| 2018 | 82°F | 5 |
| 2019 | 80°F | 6 |
| 2020 | 81°F | 6 |
| 2021 | 81°F | 6 |
| 2022 | 77°F | 11 |
| 2023 | 83°F | 4 |
| 2024 | 77°F | 12 |
| 2025 | 78°F | 8 |
Checked against official climate averages for Firenze Peretola. How we check
Compare dates
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 88°F | 79°F | 70°F |
| Sea | 79°F | 75°F | 71°F |
| Rain days | 4 | 6 | 9 |
| Overnight demand | 100% | 64% | 38% |
August: Warmer afternoons, warmer sea and fewer rain days than September. More overnight demand. August guide →
October: Cooler afternoons, cooler sea and more rain days than September. Less overnight demand. October guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Yellow marks the top three months on the Balanced mix. September stays as your reference.
April and October have fewer overnight stays than September, with a similar or higher Weather score.
Your comparison
Overnight stays are 100% of the busiest month.
Historical regional hotel-price season: well above usual. There is no room-rate baseline in euros.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 79°F | 88°F |
| Nights | 60°F | 66°F |
| Sea | 75°F | 79°F |
| Rain days | 6 | 4 |
| Visitor season | Busy season | Peak season |
| Overall / 10 | 7.4 | 5.8 |
| Month rank | #5 | #12 |
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 7.2 | #9 | 52°F | 38°F | 59°F | 10 | 5.6 | Low season |
| February | 7.3 | #7 | 55°F | 39°F | 58°F | 10 | 5.8 | Low season |
| March | 7.7 | #4 | 61°F | 42°F | 57°F | 9 | 7.0 | Low season |
| April | 8.0 | #3 | 67°F | 47°F | 60°F | 8 | 8.6 | Moderate season |
| May | 8.0 | #2 | 73°F | 53°F | 65°F | 7 | 9.4 | Moderate season |
| June | 7.1 | #10 | 83°F | 61°F | 72°F | 5 | 8.7 | Busy season |
| July | 6.2 | #11 | 88°F | 66°F | 78°F | 2 | 7.7 | Peak season |
| August | 5.8 | #12 | 88°F | 66°F | 79°F | 4 | 7.4 | Peak season |
| September | 7.4 | #5 | 79°F | 60°F | 75°F | 6 | 9.0 | Busy season |
| October | 8.1 | #1 | 70°F | 53°F | 71°F | 9 | 9.0 | Moderate season |
| November | 7.4 | #6 | 60°F | 46°F | 66°F | 12 | 6.5 | Low season |
| December | 7.2 | #8 | 54°F | 40°F | 62°F | 10 | 5.9 | Low season |
Near here
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
Bologna & Emilia-RomagnaItaly · about 70 miles
Balanced Overall 7.8 · Very good weather, 80°F (26°C) · Moderate season · Cost pricey
UmbriaItaly · about 80 miles
Balanced Overall 7.6 · Excellent weather, 80°F (26°C) · Busy season · Cost pricey
Rome & LazioItaly · about 130 miles
Balanced Overall 7.4 · Very good weather, 81°F (27°C) · Steady all year · Cost pricey
Venice & the VenetoItaly · about 160 miles
Balanced Overall 7.2 · Very good weather, 77°F (25°C) · Busy season · Cost pricey
Milan, Lake Como & LombardyItaly · about 160 miles
Balanced Overall 7.2 · Excellent weather, 76°F (25°C) · Busy season · Cost pricey
Elsewhere in Europe
Tuscany's weather ranks 28 of 117 countryside regions this month. Tuscany already has excellent weather in September; these countryside regions outside Italy are about as good and quieter for their season, nearest first.
Southern TransdanubiaHungary · about 390 miles
Excellent weather (9.0): 5°F cooler afternoons, 2 more rain days, quieter for its season (low season), cheaper
South Bohemia & PlzeňCzechia · about 430 miles
Very good weather (8.5): 11°F cooler afternoons, 2 more rain days, quieter for its season (moderate season), cheaper
Central TransdanubiaHungary · about 430 miles
Excellent weather (9.0): 6°F cooler afternoons, quieter for its season (moderate season), cheaper
Northern Albaniaabout 460 miles
Very good weather (8.7): about as warm, quieter for its season (moderate season), cheaper
Toulouse & the PyreneesMidi-Pyrénées · France · about 480 miles
Very good weather (8.9): 2°F cooler afternoons, quieter for its season (moderate season)
It's busy season, 64% of the busiest month and 44% above its average month. That means about 200,000 overnight visitors on a typical September night across the region, 33% of them from Italy itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 64,000 more: 32 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 80 |
| How our weather was checked | Official climate averages for Firenze Peretola from the national weather service, every month: afternoon highs typically within 2°F (1.0°C), night lows within 2°F (1.0°C). |
| Tourist nights per 1,000 residents per day | 55 |
| Busiest month here | August · 85 |
| Visitors as share of people present | 5.2% |
| Rank among Europe's regions this month | 91st percentile |
| Domestic share of nights | 33% |
| Platform rental nights per 100 counted nights | 32 |
| Visitor share if every platform night were extra | 6.7% |
| Regional hotel-price season | Well above usual (+12% vs this region's average month). Historical index from ISTAT, NIC consumer price index for accommodation services (ECOICOP 112), by region; no euro room-rate baseline. |
| Population used | 3.7 million |
| Statistical region | ITI1 · Toscana |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national; the first figure is regional (ISTAT, NIC consumer price index for accommodation services (ECOICOP 112), by region). Full method · this region's data.