Early September 1 September
87°F
Typical afternoon high
11% historical wet-day frequency
Spain · Beach
Mallorca & the Balearics
in September.
Is September a good time?
Hot days.
Fewer overnight stays than August.
September averages 83°F afternoons and 78°F seas, with about 5 rain days. Later September is typically cooler.
- Afternoons
- 83°F
- Sea
- 78°F
- Visitor demand
- 85%of August peak
Historical Illes Balears regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. Covers Mallorca, Ibiza, Menorca and Formentera; conditions vary within the region.
Overall match
7.3/10 · scores & prioritiesWhat matters most?
Weather 50% · Crowds 30% · Cost 20%
#6 of 12 months here · Balanced mix
Weather9.7/10Excellent
CrowdsPeak seasonvs its own year; overnight stays do not measure queuesFor its size, one of Europe's busiest this month
CostPriceyfor Europe
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. About 13 hours of daylight. About 5 rain days in a typical September.
Can I swim in September?
The sea averages 78°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 07:28 and sets about 19:59 (local time, mid-month). Afternoons reach about 83°F (28°C). Expect rain on about 5 days in a typical September.
Typical afternoon
83°F (28°C)
average daily high, 15 recent Septembers
Night low
—
not shown here: our correction of the model data isn't accurate enough for night lows in this region
Sea
78°F (26°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 11% to 17% between those dates.
Mid September 15 September
83°F
Typical afternoon high
18% historical wet-day frequency
Late September 30 September
79°F
Typical afternoon high
17% 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° | 286° | 386° | 486° | 585° | ||
| 685° | 785° | 885° | 985° | 1085° | 1184° | 1284° |
| 1384° | 1483° | 1583° | 1683° | 1783° | 1883° | 1982° |
| 2082° | 2182° | 2282° | 2381° | 2481° | 2581° | 2680° |
| 2780° | 2880° | 2980° | 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 (27°C) in the last. The chance of a wet day runs 11–20%.
Crowds and cost
Visitor season
Will it be busy?
Peak season. September averages 85% of August's overnight stays per day. Fewer overnight stays than August.
Overnight stays across Illes Balears 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.
Price-check Ibiza–Formentera separately from the wider region. The 2024–2025 September hotel averages were €190 in Ibiza–Formentera, versus €155 across the Balearics, per occupied room-night. Hotel mixes differ; VAT is excluded. Historical averages, not booking quotes. Includes provisional figures. Sources and scope.
Wider region: Balearics
€155
2024–2025 monthly average; hotel revenue per occupied room-night; not a current booking quote. +19% vs this region's usual month.
Spain as a whole
Below EU average
2024 restaurants and hotels price level: 84 where the EU average is 100. A relative index, not a room rate.
The historical regional amount comes from INE Spain, EOH/IRSH table 2059: hotel average daily rate per occupied room; the country price level is national. Hotel averages are not live booking quotes.
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 81°F (27°C) and 85°F (30°C); in 15 of them they were within 3°F (1.5°C) of the typical 83°F (28°C). Rain days ranged from 2 to 9; half the years had 4–7.
Rain days in each September
Rain days
5
at least 1 mm, typical year; about 8 in a wet year
Mostly sunny days
11 of 30
cloud cover under 30%
Years with a 95°F+ day
0 of 15
no September in the last 15 years had a 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 | 84°F | 2 |
| 2012 | 82°F | 5 |
| 2013 | 82°F | 3 |
| 2014 | 85°F | 7 |
| 2015 | 81°F | 7 |
| 2016 | 83°F | 4 |
| 2017 | 81°F | 4 |
| 2018 | 84°F | 8 |
| 2019 | 83°F | 4 |
| 2020 | 82°F | 4 |
| 2021 | 84°F | 9 |
| 2022 | 85°F | 5 |
| 2023 | 83°F | 6 |
| 2024 | 81°F | 5 |
| 2025 | 83°F | 5 |
Checked against 33 local weather stations. How we check
Compare dates
August, September
or October?
| Typical conditions | Aug | Sep | Oct |
|---|---|---|---|
| Afternoons | 89°F | 83°F | 76°F |
| Sea | 80°F | 78°F | 74°F |
| Rain days | 1 | 5 | 5 |
| Overnight demand | 100% | 85% | 59% |
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 revenue (2024–2025 monthly average): €202 per occupied room-night. An average, not a booking quote. Price-check Ibiza–Formentera separately from the wider region. The 2024–2025 August hotel averages were €259 in Ibiza–Formentera, versus €202 across the Balearics, per occupied room-night. Hotel mixes differ; VAT is excluded. Historical averages, not booking quotes.
Read the August guide →| Typical conditions | September | August |
|---|---|---|
| Afternoons | 83°F | 89°F |
| Nights | — | — |
| Sea | 78°F | 80°F |
| Rain days | 5 | 1 |
| Visitor season | Peak season | Peak season |
| Overall / 10 | 7.3 | 6.6 |
| Month rank | #6 | #8 |
Every month, in detail Show detailsHide details
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 5.6 | #12 | 60°F | — | 59°F | 6 | 5.4 | Off season |
| February | 5.8 | #11 | 60°F | — | 58°F | 6 | 5.5 | Off season |
| March | 7.5 | #5 | 64°F | — | 58°F | 6 | 6.5 | Low season |
| April | 7.8 | #3 | 69°F | — | 61°F | 5 | 7.8 | Low season |
| May | 7.9 | #2 | 75°F | — | 66°F | 3 | 9.6 | Busy season |
| June | 7.5 | #4 | 84°F | — | 73°F | 2 | 10.0 | Peak season |
| July | 7.0 | #7 | 89°F | — | 78°F | 0 | 10.0 | Peak season |
| August | 6.6 | #8 | 89°F | — | 80°F | 1 | 9.6 | Peak season |
| September | 7.3 | #6 | 83°F | — | 78°F | 5 | 9.7 | Peak season |
| October | 8.0 | #1 | 76°F | — | 74°F | 5 | 9.4 | Moderate season |
| November | 6.3 | #9 | 67°F | — | 68°F | 8 | 6.9 | Off season |
| December | 5.9 | #10 | 62°F | — | 62°F | 5 | 6.3 | 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 Mallorca & the Balearics in September, but quieter
Mallorca & the Balearics' weather ranks 25 of 77 beach regions this month. Mallorca & the Balearics already has excellent weather in September; these beach regions outside Spain are about as good and quieter for their season, nearest first.
SardiniaItaly · about 330 miles
Excellent weather (9.8): about as warm, quieter for its season (busy season)
French Riviera & ProvenceFrance · about 340 miles
Excellent weather (9.5): 4°F cooler afternoons, quieter for its season (moderate season)
CorsicaFrance · about 370 miles
Excellent weather (9.8): 4°F cooler afternoons, quieter for its season (moderate season), pricier
Central Portugalabout 570 miles
Excellent weather (9.4): 3°F cooler afternoons, quieter for its season (moderate season), cheaper
MarcheItaly · about 590 miles
Excellent weather (9.3): 4°F cooler afternoons, 2 more rain days, quieter for its season (moderate season)
How we knowSources, regional scope & scoring method Show detailsHide details
It's peak season, 85% of the busiest month and 85% above its average month. That means about 370,000 overnight visitors on a typical September night across the region, 8% of them from Spain itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 52,000 more: 14 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 83 |
| How our weather was checked | 33 open weather stations in this region, January and July: afternoon highs typically within 1°F (0.2°C), night lows off by more than 4°F (2°C), so not shown. |
| Tourist nights per 1,000 residents per day | 299 |
| Busiest month here | August · 351 |
| Visitors as share of people present | 23.0% |
| Rank among Europe's regions this month | 99th percentile |
| Domestic share of nights | 8% |
| Platform rental nights per 100 counted nights | 14 |
| Visitor share if every platform night were extra | 25.4% |
| Population used | 1.2 million |
| Statistical region | ES53 · Illes Balears |
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 (INE Spain, EOH/IRSH table 2059: hotel average daily rate per occupied room). Full method · this region's data.