Early September 1 September
87°F
Typical afternoon high
8% historical wet-day frequency
Italy · Beach
Sardinia
in September.
Is September a good time?
Hot days.
Fewer overnight stays than August.
September averages 83°F afternoons and 76°F seas, with about 4 rain days. Later September is typically cooler.
- Afternoons
- 83°F
- Sea
- 76°F
- Visitor demand
- 70%of August peak
Historical Sardegna regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Costa Smeralda, Cagliari and Alghero; conditions vary within the region.
Overall match
7.6/10 · scores & prioritiesWhat matters most?
Weather 50% · Crowds 30% · Cost 20%
#5 of 12 months here · Balanced mix
Weather9.8/10Excellent
CrowdsBusy seasonvs its own year; overnight stays do not measure queuesFor its size, one of Europe's busiest this month
CostPriceyfor Europe; Italy-wide price level
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your September
What to expect.
What should I pack?
Afternoons around 83°F (28°C): summer clothes; nights around 64°F (18°C): light layers. About 13 hours of daylight. About 4 rain days in a typical September.
Can I swim in September?
The sea averages 76°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.
A typical day: temperatures & daylightAfternoons, nights, sea temperature & daylight Show detailsHide details
About 13 hours of daylight.
The sun rises about 07:04 and sets about 19:35 (local time, mid-month). Mornings start around 64°F (18°C); afternoons reach about 83°F (28°C). Expect rain on about 4 days in a typical September.
Typical afternoon
83°F (28°C)
average daily high, 15 recent Septembers
Night low
64°F (18°C)
average daily minimum
Sea
76°F (25°C)
warm; open water near the coast, NOAA satellite record 2011–2025
Daylight
12h 31m
on the 15th, computed from latitude
Early, middle or late?
Early or late September?
Early September is typically warmer. The afternoon high averages 87°F on the 1st, versus 79°F on the 30th. Historical wet-day frequency rises from 8% to 15% between those dates.
Mid September 15 September
83°F
Typical afternoon high
13% historical wet-day frequency
Late September 30 September
79°F
Typical afternoon high
15% 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.
Daily calendar & holiday datesSeptember 2027 · historical weather & dated holidays Show calendarHide calendar
September 2027 calendar
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 187° | 287° | 386° | 486° | 585° | ||
| 685° | 785° | 885° | 985° | 1085° | 1184° | 1284° |
| 1384° | 1484° | 1583° | 1683° | 1783° | 1883° | 1982° |
| 2082° | 2182° | 2282° | 2381° | 2481° | 2580° | 2680° |
| 2780° | 2879° | 2979° | 3079° |
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 86°F (30°C) in the first week to 80°F (26°C) in the last. The chance of a wet day runs 8–16%.
Crowds and cost
Visitor season
Will it be busy?
Busy season. September averages 70% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Sardegna do not measure queues, day visitors or congestion at individual sights. For its size, one of Europe's busiest this month.
Hotel price season
Will it be cheaper?
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.
Italy as a whole
Above EU average
2024 restaurants and hotels price level: 107 where the EU average is 100. A relative index, not a room rate.
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
How much does September vary?
Across the recorded years
In the 15 years from 2011 to 2025, the month's afternoons averaged between 80°F (27°C) and 86°F (30°C); in 13 of them they were within 3°F (1.5°C) of the typical 83°F (28°C). Rain days ranged from 1 to 6; half the years had 2–5.
Rain days in each September
Rain days
4
at least 1 mm, typical year; about 6 in a wet year
Mostly sunny days
13 of 30
cloud cover under 30%
Years with a 95°F+ day
3 of 15
of the last 15 Septembers had at least one day at or above 95°F (35°C)
Good weather days
26 of 30
rated very good or better
See every recorded SeptemberHistorical monthly averages, year by year Show detailsHide details
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 83°F | 3 |
| 2012 | 82°F | 5 |
| 2013 | 81°F | 5 |
| 2014 | 84°F | 2 |
| 2015 | 82°F | 4 |
| 2016 | 82°F | 6 |
| 2017 | 80°F | 2 |
| 2018 | 83°F | 4 |
| 2019 | 84°F | 2 |
| 2020 | 82°F | 6 |
| 2021 | 84°F | 4 |
| 2022 | 85°F | 5 |
| 2023 | 86°F | 1 |
| 2024 | 81°F | 6 |
| 2025 | 84°F | 3 |
Checked against official climate averages for Cagliari Elmas. How we check
Compare dates
August, September
or October?
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 91°F | 83°F | 75°F |
| Sea | 79°F | 76°F | 72°F |
| Rain days | 1 | 4 | 5 |
| Overnight demand | 100% | 70% | 28% |
August: Warmer afternoons, warmer sea and fewer rain days than September. More overnight demand. August guide →
October: Cooler afternoons and cooler sea than September. Less overnight demand. October guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Compare any of the 12 monthsChoose another month and compare it with September Show comparisonHide comparison
Yellow marks the top three months on the Balanced mix. September stays as your reference.
May and October have fewer overnight stays than September, with a similar or higher Weather score.
Your comparison
September or August?
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 | 83°F | 91°F |
| Nights | 64°F | 68°F |
| Sea | 76°F | 79°F |
| Rain days | 4 | 1 |
| Visitor season | Busy season | Peak season |
| Overall / 10 | 7.6 | 6.6 |
| Month rank | #5 | #7 |
Every month, in detail Show detailsHide details
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 4.9 | #12 | 57°F | 44°F | 59°F | 8 | 4.0 | Off season |
| February | 5.1 | #11 | 59°F | 44°F | 58°F | 7 | 4.5 | Off season |
| March | 5.7 | #9 | 63°F | 46°F | 58°F | 8 | 5.6 | Off season |
| April | 7.8 | #4 | 68°F | 49°F | 60°F | 6 | 7.4 | Low season |
| May | 8.2 | #1 | 75°F | 55°F | 64°F | 4 | 9.0 | Low season |
| June | 7.8 | #3 | 85°F | 63°F | 71°F | 2 | 10.0 | Busy season |
| July | 7.1 | #6 | 91°F | 67°F | 77°F | 1 | 9.9 | Peak season |
| August | 6.6 | #7 | 91°F | 68°F | 79°F | 1 | 9.8 | Peak season |
| September | 7.6 | #5 | 83°F | 64°F | 76°F | 4 | 9.8 | Busy season |
| October | 8.2 | #2 | 75°F | 59°F | 72°F | 5 | 9.0 | Low season |
| November | 5.9 | #8 | 65°F | 52°F | 67°F | 9 | 6.0 | Off season |
| December | 5.4 | #10 | 60°F | 47°F | 62°F | 7 | 4.9 | Off season |
Near here
Nearby places in September
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
Elsewhere in Europe
As good as Sardinia in September, but quieter
Sardinia's weather ranks 22 of 77 beach regions this month. Sardinia already has excellent weather in September; these beach regions outside Italy are about as good and quieter for their season, nearest first.
French Riviera & ProvenceFrance · about 310 miles
Excellent weather (9.5): 4°F cooler afternoons, quieter for its season (moderate season)
Meteora, Pelion & the SporadesThessaly · Greece · about 700 miles
Excellent weather (9.8): about as warm, quieter for its season (moderate season), cheaper
Central Greece & EviaGreece · about 740 miles
Excellent weather (10.0): about as warm, quieter for its season (moderate season), cheaper
Varna & the northern Black Sea coastBulgaria · about 970 miles
Excellent weather (9.6): 5°F cooler afternoons, quieter for its season (moderate season), cheaper
How we knowSources, regional scope & scoring method Show detailsHide details
It's busy season, 70% of the busiest month and 100% above its average month. That means about 101,000 overnight visitors on a typical September night across the region, 38% of them from Italy itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 39,000 more: 38 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 84 |
| How our weather was checked | Official climate averages for Cagliari Elmas from the national weather service, every month: afternoon highs typically within 1°F (0.5°C), night lows within 2°F (1.1°C). |
| Tourist nights per 1,000 residents per day | 65 |
| Busiest month here | August · 93 |
| Visitors as share of people present | 6.1% |
| Rank among Europe's regions this month | 93rd percentile |
| Domestic share of nights | 38% |
| Platform rental nights per 100 counted nights | 38 |
| Visitor share if every platform night were extra | 8.2% |
| Regional hotel-price season | Well above usual (+14% 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 | 1.6 million |
| Statistical region | ITG2 · Sardegna |
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.