Ibiza weather in September

In September, Ibiza sees average daytime highs of 27°C and overnight lows near 22°C, with 41 mm of rain across 4.7 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 26°C by the end. The sky is clear or mostly clear about 57% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Ibiza's 5th-clearest and 9th-windiest month. For the whole year in context, see Ibiza's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
41 mm
4.7 wet days
Daylight
12 h 12 min
6:41 AM – 6:56 PM
Cloud cover
40%
5th clearest
Wind
13 km/h
9th windiest
Solar energy
5.06 kWh/m²
Travel score
7.4
out of 10

Ibiza is capital of Ibiza Municipality, Spain.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 26°C by the end.

A typical September day in Ibiza reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12923
22923
32923
42923
52923
62923
72823
82823
92823
102823
112822
122822
132822
142822
152722
162722
172722
182722
192722
202721
212721
222721
232621
242621
252621
262621
272621
282621
292620
302620

How September really feels in Ibiza

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ibiza weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 11°3069.65.5
Feb16° / 11°254.910.55.7
Mar18° / 12°224.411.76.8
Apr20° / 14°265137.2
May23° / 17°202.914.18.3
Jun27° / 20°81.714.78.4
Jul30° / 23°30.414.47.1
Aug30° / 24°151.713.56.5
Sep27° / 22°414.712.37.4
Oct24° / 19°446117.7
Nov19° / 14°467.19.96.8
Dec17° / 12°365.79.36.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
37921
47921
57822
67822
77723
87723
97624
107525
117525
127525
137426
147426
157327
167327
177327
187129
197129
207030
217030
226931
236832
246832
256832
266832
276832
286931
296931
306931

Chance of precipitation in September

Any precipitation

Ibiza gets around 41 mm of rain over 4.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 17% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
110
211
311
411
512
612
713
813
914
1014
1114
1214
1315
1415
1515
1615
1716
1816
1916
2017
2117
2217
2317
2417
2517
2617
2717
2817
2917
3017

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 47% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
128214723
228224721
328234720
429244718
539254717
6310264715
7310264614
8410274613
9411274612
10411284611
11512284510
1251229449
1361330448
1461331437
1571431417
1671432406
1781533395
1881534375
1991635364
20101736344
21101737333
22111837323
23111838302
24121839292
25121939282
26131939272
27131939262
28142039261
29152038251
30152138251

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:27 AM to 6:54 AM, and sunset from 7:21 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:277:21
212.86:287:19
312.86:297:17
412.86:307:16
512.76:317:14
612.76:327:13
712.66:337:11
812.66:347:09
912.66:357:08
1012.56:367:06
1112.56:367:04
1212.46:377:03
1312.46:387:01
1412.36:396:59
1512.36:406:58
1612.26:416:56
1712.26:426:54
1812.26:436:53
1912.16:446:51
2012.16:456:49
2112.06:466:48
2212.06:476:46
2311.96:486:44
2411.96:496:43
2511.96:506:41
2611.86:506:39
2711.86:516:38
2811.76:526:36
2911.76:536:34
3011.66:546:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.06 kWh/m².

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 7.55 kWh/m² in June across the year — September's 5.06 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.7Bright
35.7Bright
45.6Bright
55.6Bright
65.5Bright
75.5Bright
85.5Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.1Bright
165.1Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Ibiza?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.4
Sightseeing
4th-best month of the year
7.9
Beach & pool
4th-best month of the year

September is one of the better times to visit Ibiza for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Ibiza in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Ibiza sees daytime highs around 27°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Ibiza in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 2 to Nov 5 — about 5.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ibiza in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ibiza peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateVery highHighModerateLowJul 16UV 9Dec 18UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Ibiza?

Ibiza sits at 38.9°N, 1.4°E, 7 m above sea level, in Spain. The nearest listed city is Santa Eulària des Riu, 12 km away.

JaveaDeniaCalviàSant AgustíCalpSon Rapinya

Topography around Ibiza

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ibiza.

Within 3 km, the terrain around Ibiza has significant variations in elevation — a maximum elevation change of 254 m around an average of 20 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 485 m; within 80 km, significant variations in elevation — a maximum elevation change of 477 m.

The land around Ibiza is covered by water (41%) and artificial surfaces (25%) within 3 km, water (51%) and trees (24%) within 16 km, and water (92%) within 80 km.

3 km
254 m
16 km
485 m
80 km
477 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Santa Eulària des Riu 12 km · Sant Antoni de Portmany 14 km · Javea 111 km · Denia 115 km · Calvià 118 km · Sant Agustí 123 km · Calp 124 km · Son Rapinya 127 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Ibiza (38.9088°, 1.433°, elevation 7 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).