Early September 1 September
83°F
Typical afternoon high
11% historical wet-day frequency
France · Beach
Is September a good time?
September averages 79°F afternoons and 75°F seas, with about 4 rain days. Later September is typically cooler.
Historical Corse regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Ajaccio and Bonifacio; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#4 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 65°F (18°C): light layers. About 13 hours of daylight. About 4 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 07:02 and sets about 19:36 (local time, mid-month). Mornings start around 65°F (18°C); afternoons reach about 79°F (26°C). Expect rain on about 4 days in a typical September.
Early, middle or late?
Early September is typically warmer. The afternoon high averages 83°F on the 1st, versus 75°F on the 30th. Historical wet-day frequency rises from 11% to 21% between those dates.
83°F
Typical afternoon high
11% historical wet-day frequency
79°F
Typical afternoon high
15% historical wet-day frequency
75°F
Typical afternoon high
21% 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 |
|---|---|---|---|---|---|---|
| 183° | 282° | 382° | 482° | 581° | ||
| 681° | 781° | 881° | 981° | 1080° | 1180° | 1280° |
| 1380° | 1480° | 1579° | 1679° | 1779° | 1878° | 1978° |
| 2078° | 2178° | 2277° | 2377° | 2477° | 2576° | 2676° |
| 2776° | 2876° | 2975° | 3075° |
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 82°F (28°C) in the first week to 76°F (24°C) in the last. The chance of a wet day runs 11–21%.
Visitor season
Moderate season. September averages 59% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Corse 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. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
Year-to-year variation
In the 15 years from 2011 to 2025, the month's afternoons averaged between 76°F (24°C) and 81°F (27°C); in 14 of them they were within 3°F (1.5°C) of the typical 79°F (26°C). Rain days ranged from 2 to 8; half the years had 3–6.
Rain days in each September
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 80°F | 2 |
| 2012 | 78°F | 6 |
| 2013 | 78°F | 3 |
| 2014 | 79°F | 4 |
| 2015 | 78°F | 3 |
| 2016 | 79°F | 5 |
| 2017 | 76°F | 4 |
| 2018 | 80°F | 4 |
| 2019 | 80°F | 4 |
| 2020 | 79°F | 8 |
| 2021 | 80°F | 3 |
| 2022 | 80°F | 6 |
| 2023 | 81°F | 2 |
| 2024 | 77°F | 8 |
| 2025 | 80°F | 5 |
Checked against 47 local weather stations. How we check
Compare dates
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 86°F | 79°F | 72°F |
| Sea | 79°F | 75°F | 71°F |
| Rain days | 2 | 4 | 8 |
| Overnight demand | 100% | 59% | 21% |
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.
No other scored month has a Weather score at least 1.0 point higher than September.
Your comparison
Overnight stays are 100% of the busiest month.
National hotel prices and local visitor demand suggest well above usual. No measured regional room rate is available.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 79°F | 86°F |
| Nights | 65°F | 70°F |
| Sea | 75°F | 79°F |
| Rain days | 4 | 2 |
| Visitor season | Moderate season | Peak season |
| Overall / 10 | 7.6 | 6.9 |
| Month rank | #4 | #7 |
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 4.5 | #12 | 56°F | 44°F | 58°F | 9 | 3.3 | Off season |
| February | 4.7 | #11 | 57°F | 44°F | 57°F | 7 | 3.7 | Off season |
| March | 5.3 | #9 | 61°F | 47°F | 57°F | 8 | 4.9 | Off season |
| April | 7.4 | #5 | 66°F | 51°F | 60°F | 6 | 6.7 | Low season |
| May | 7.7 | #2 | 71°F | 57°F | 64°F | 5 | 8.4 | Low season |
| June | 7.9 | #1 | 80°F | 65°F | 72°F | 3 | 10.0 | Moderate season |
| July | 7.3 | #6 | 85°F | 70°F | 77°F | 2 | 10.0 | Busy season |
| August | 6.9 | #7 | 86°F | 70°F | 79°F | 2 | 10.0 | Peak season |
| September | 7.6 | #4 | 79°F | 65°F | 75°F | 4 | 9.8 | Moderate season |
| October | 7.7 | #3 | 72°F | 59°F | 71°F | 8 | 8.1 | Low season |
| November | 5.4 | #8 | 63°F | 52°F | 66°F | 10 | 5.1 | Off season |
| December | 4.9 | #10 | 58°F | 47°F | 61°F | 10 | 4.2 | Off season |
Near here
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
TuscanyFlorence, Siena · Italy · about 140 miles
Balanced Overall 7.4 · Excellent weather, 79°F (26°C) · Busy season · Cost pricey
SardiniaItaly · about 140 miles
Balanced Overall 7.6 · Excellent weather, 83°F (28°C) · Busy season · Cost pricey
Liguria & the Cinque TerreItaly · about 150 miles
Balanced Overall 7.2 · Excellent weather, 78°F (25°C) · Busy season · Cost pricey
UmbriaItaly · about 180 miles
Balanced Overall 7.6 · Excellent weather, 80°F (26°C) · Busy season · Cost pricey
Elsewhere in Europe
Corsica's weather ranks 20 of 77 beach regions this month. Corsica already has excellent weather in September; these beach regions outside France are about as good and quieter for their season, nearest first.
MarcheItaly · about 220 miles
Excellent weather (9.3): about as warm, 2 more rain days, quieter for its season (moderate season), cheaper
CalabriaItaly · about 440 miles
Excellent weather (9.9): 3°F warmer afternoons, 2 more rain days, quieter for its season (moderate season), cheaper
Varna & the northern Black Sea coastBulgaria · about 930 miles
Excellent weather (9.6): about as warm, quieter for its season (moderate season), cheaper
It's moderate season, 59% of the busiest month and 89% above its average month. That means about 56,000 overnight visitors on a typical September night across the region, 63% of them from France itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 20,000 more: 35 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 84 |
| How our weather was checked | 47 open weather stations in this region, January and July: afternoon highs typically within 2°F (1.1°C), night lows within 3°F (1.8°C). |
| Tourist nights per 1,000 residents per day | 157 |
| Busiest month here | August · 264 |
| Visitors as share of people present | 13.5% |
| Rank among Europe's regions this month | 97th percentile |
| Domestic share of nights | 63% |
| Platform rental nights per 100 counted nights | 35 |
| Visitor share if every platform night were extra | 17.4% |
| National hotel-price season | France historical 2024–2025 index: About usual (+4% vs its average month). Not a local room quote. |
| Population used | 362,000 |
| Statistical region | FRM0 · Corse |
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. Full method · this region's data.