Early September 1 September
79°F
Typical afternoon high
19% historical wet-day frequency
France · Countryside
Is September a good time?
September averages 75°F afternoons and 67°F seas, with about 7 rain days. Later September is typically cooler.
Historical Poitou-Charentes regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers La Rochelle and Île de Ré; conditions vary within the region.
What matters most?
Weather 50% · Crowds 30% · Cost 20%
#1 of 12 months here · Balanced mix
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
Afternoons around 75°F (24°C): T-shirt weather; nights around 54°F (12°C): a sweater and a light jacket. About 13 hours of daylight. About 7 rain days in a typical September.
The sea averages 67°F. Our swimming guide: fresh: fine once you are in. 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 07:37 and sets about 20:14 (local time, mid-month). Mornings start around 54°F (12°C); afternoons reach about 75°F (24°C). Expect rain on about 7 days in a typical September.
Early, middle or late?
Early September is typically warmer. The afternoon high averages 79°F on the 1st, versus 71°F on the 30th. Historical wet-day frequency rises from 19% to 28% between those dates.
79°F
Typical afternoon high
19% historical wet-day frequency
76°F
Typical afternoon high
26% historical wet-day frequency
71°F
Typical afternoon high
28% 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 |
|---|---|---|---|---|---|---|
| 179° | 279° | 379° | 478° | 578° | ||
| 678° | 778° | 878° | 978° | 1078° | 1177° | 1277° |
| 1377° | 1476° | 1576° | 1675° | 1775° | 1874° | 1974° |
| 2074° | 2174° | 2273° | 2373° | 2473° | 2572° | 2672° |
| 2772° | 2871° | 2971° | 3071° |
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 78°F (26°C) in the first week to 72°F (22°C) in the last. The chance of a wet day runs 18–30%.
Visitor season
Low season. September averages 33% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Poitou-Charentes do not measure queues, day visitors or congestion at individual sights. For its size, busier than most of Europe this month.
Hotel price season
About 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 70°F (21°C) and 82°F (28°C); in 8 of them they were within 3°F (1.5°C) of the typical 75°F (24°C). Rain days ranged from 2 to 14; half the years had 5–10.
Rain days in each September
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 76°F | 7 |
| 2012 | 74°F | 6 |
| 2013 | 74°F | 6 |
| 2014 | 78°F | 3 |
| 2015 | 70°F | 8 |
| 2016 | 78°F | 4 |
| 2017 | 71°F | 11 |
| 2018 | 79°F | 2 |
| 2019 | 77°F | 7 |
| 2020 | 78°F | 5 |
| 2021 | 77°F | 10 |
| 2022 | 76°F | 9 |
| 2023 | 82°F | 7 |
| 2024 | 70°F | 14 |
| 2025 | 72°F | 10 |
Checked against 73 local weather stations. How we check
Compare dates
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 81°F | 75°F | 67°F |
| Sea | 69°F | 67°F | 64°F |
| Rain days | 5 | 7 | 9 |
| Overnight demand | 100% | 33% | 18% |
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 | 75°F | 81°F |
| Nights | 54°F | 58°F |
| Sea | 67°F | 69°F |
| Rain days | 7 | 5 |
| Visitor season | Low season | Peak season |
| Overall / 10 | 8.2 | 6.4 |
| Month rank | #1 | #9 |
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 5.4 | #12 | 50°F | 37°F | 51°F | 12 | 4.8 | Off season |
| February | 6.4 | #10 | 52°F | 37°F | 50°F | 10 | 5.5 | Low season |
| March | 7.2 | #6 | 58°F | 41°F | 51°F | 10 | 6.6 | Low season |
| April | 7.6 | #5 | 64°F | 44°F | 55°F | 8 | 7.8 | Low season |
| May | 7.8 | #3 | 70°F | 49°F | 59°F | 10 | 8.5 | Low season |
| June | 7.7 | #4 | 77°F | 56°F | 65°F | 8 | 8.7 | Moderate season |
| July | 7.0 | #7 | 81°F | 59°F | 68°F | 5 | 9.1 | Busy season |
| August | 6.4 | #9 | 81°F | 58°F | 69°F | 5 | 8.9 | Peak season |
| September | 8.2 | #1 | 75°F | 54°F | 67°F | 7 | 9.3 | Low season |
| October | 8.0 | #2 | 67°F | 49°F | 64°F | 9 | 8.2 | Low season |
| November | 6.5 | #8 | 57°F | 43°F | 59°F | 13 | 6.1 | Low season |
| December | 6.0 | #11 | 52°F | 39°F | 54°F | 14 | 5.3 | 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.
LimousinFrance · about 90 miles
Balanced Overall 7.9 · Very good weather, 73°F (23°C) · Low season · Cost pricey
Nantes & Pays de la LoireFrance · about 100 miles
Balanced Overall 7.6 · Very good weather, 73°F (23°C) · Low season · Cost pricey
Loire Valley & CentreFrance · about 120 miles
Balanced Overall 7.9 · Excellent weather, 74°F (23°C) · Moderate season · Cost pricey
Bordeaux & the Atlantic coastAquitaine · France · about 130 miles
Balanced Overall 7.7 · Very good weather, 78°F (25°C) · Low season · Cost pricey
Toulouse & the PyreneesMidi-Pyrénées · France · about 180 miles
Balanced Overall 7.9 · Very good weather, 77°F (25°C) · Moderate season · Cost pricey
Elsewhere in Europe
Poitou-Charentes' weather ranks 12 of 117 countryside regions this month. We found no countryside regions outside France with similar weather and a quieter visitor season.
It's low season, 33% of the busiest month and about average for the year. That means about 49,000 overnight visitors on a typical September night across the region, 81% of them from France itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 14,000 more: 28 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Urban, 0–100) | 81 |
| How our weather was checked | 73 open weather stations in this region, January and July: afternoon highs typically within 1°F (0.4°C), night lows within 1°F (0.3°C). |
| Tourist nights per 1,000 residents per day | 26 |
| Busiest month here | August · 81 |
| Visitors as share of people present | 2.6% |
| Rank among Europe's regions this month | 75th percentile |
| Domestic share of nights | 81% |
| Platform rental nights per 100 counted nights | 28 |
| Visitor share if every platform night were extra | 3.3% |
| National hotel-price season | France historical 2024–2025 index: About usual (+4% vs its average month). Not a local room quote. |
| Population used | 1.8 million |
| Statistical region | FRI3 · Poitou-Charentes |
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.