Spain Ibiza Weather in September — Climate Guide
September in Ibiza is very-high
Ibiza Weather in September — Quick Answer
As of 2026- Avg temp
- 28° / 19°
- Rainfall
- 45mm · 4 days
- Crowds
- Busy
As of 2026, Ibiza in September averages a high of 28°C and low of 19°C with 45mm of rain over about 4 days. Warm late summer — around 28°C/19°C (82°F/66°F). Light, breathable clothing for the day with a light layer for cooler evenings later in the month. Sun hat, sunglasses, SPF. The sea is still warm for swimming.
September is very-high for Ibiza.
September is arguably the best month overall — around 28°C/19°C (82°F/66°F), with the sea still warm (about 25°C) and the worst of the heat and crowds easing.
The clubs are still running their season (the big closing parties build through late September into October), and the beach clubs and calas are open and lovely — but the peak-August crush has gone, and the weather is balmy rather than punishing.
Travel score
Ibiza September Weather Stats
Avg High
28°C
Avg Low
19°C
Rainy Days
4
45mm total
Sunshine
8.5h
Daily avg
Humidity
70%
comfortable
UV Index
6
High
Wind
14 km/h
Gusts 27
Sea Temp
25°C
Avg water temp
Crowds
Busy
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
12 μg/m³
PM10
24 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
29°C
Nighttime
19°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 27 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Warm sea, easing heat
- Clubs still running (closings begin)
- Slightly thinner crowds than August
- Long, balmy evenings
Cons
- Still busy and high-priced
- A little more rain returns
- Cooler evenings later in the month
- Some closings cause busy weekends
September Events & Festivals
- Excellent shoulder-season month
- Sea still warm (around 25°C)
- Clubs still running (closings build through the month)
- Heat eases, crowds thin a little
Ibiza in September — Full Picture
September is arguably the best month overall — around 28°C/19°C (82°F/66°F), with the sea still warm (about 25°C) and the worst of the heat and crowds easing.
The clubs are still running their season (the big closing parties build through late September into October), and the beach clubs and calas are open and lovely — but the peak-August crush has gone, and the weather is balmy rather than punishing.
It hits the sweet spot of warm sea, full nightlife, comfortable temperatures, and slightly thinner crowds. Long, warm evenings keep the island lively.
Note: a little more rain returns (about 45mm), and it's still a popular, high-price month, so book ahead. But for the best balance of weather, swimmable sea, open venues, and atmosphere, September is hard to beat.
What to Wear & What to Pack
Warm late summer — around 28°C/19°C (82°F/66°F). Light, breathable clothing for the day with a light layer for cooler evenings later in the month. Sun hat, sunglasses, SPF. The sea is still warm for swimming.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
19.7°C
11.3°C
4.7/mo
Summer (Jun·Jul·Aug)
29°C
20.3°C
1.7/mo
Autumn (Sep·Oct·Nov)
Current23.7°C
15.7°C
5.3/mo
Winter (Dec·Jan·Feb)
15.3°C
8°C
5.7/mo
Ibiza Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 15° | 8° | 6d·40mm | 5.5h | 75% | 2 | Quiet | Low season | |
| 15° | 7° | 5d·30mm | 6h | 73% | 3 | Quiet | Low season | |
| 17° | 9° | 5d·35mm | 7h | 71% | 4 | Quiet | Low season | |
| 19° | 11° | 5d·35mm | 8h | 70% | 5 | Moderate | Shoulder | |
| May (Best) | 23° | 14° | 4d·25mm | 9.5h | 68% | 7 | Moderate | Shoulder |
| June (Best) | 27° | 18° | 2d·15mm | 10.5h | 67% | 8 | Busy | Peak |
| July (Best) | 30° | 21° | 1d·5mm | 11.5h | 65% | 9 | Very busy | Peak |
| August (Best) | 30° | 22° | 2d·15mm | 11h | 67% | 9 | Very busy | Peak |
| September (Best) | 28° | 19° | 4d·45mm | 8.5h | 70% | 6 | Busy | Peak |
| 24° | 16° | 6d·55mm | 6.5h | 73% | 4 | Moderate | Shoulder | |
| 19° | 12° | 6d·50mm | 5.5h | 75% | 2 | Quiet | Low season | |
| 16° | 9° | 6d·45mm | 5h | 76% | 2 | Quiet | Low season |
View Other Months
Ibiza September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Ibiza?
Ibiza in September is very-high. Tourist crowds are busy and flight/hotel prices are peak.
What's the average temperature in Ibiza in September?
Ibiza September averages a high of 28°C and a low of 19°C.
Does it rain much in Ibiza in September?
Ibiza September averages 45mm of rainfall over about 4 rainy days.
What should I wear in Ibiza in September?
Warm late summer — around 28°C/19°C (82°F/66°F). Light, breathable clothing for the day with a light layer for cooler evenings later in the month. Sun hat, sunglasses, SPF. The sea is still warm for swimming.
What time are sunrise and sunset in Ibiza in September?
Ibiza September sunrise is 07:45 and sunset is 20:00, with 12h 15min of daylight.
What's the air quality like in Ibiza in September?
Ibiza September air quality (AQI) averages 35, rated Good. PM2.5 averages 12μg/m³.
What activities are recommended in Ibiza in September?
In September, Ibiza is great for Beach days (warm sea), Club residency and closing nights, Boat trips and Formentera.
Is September peak season in Ibiza?
Ibiza September crowds are busy and prices are peak. Advance reservations are strongly recommended.
Best Months to Visit Ibiza
View Other Months
Planning a September trip to Ibiza?
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Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.