Spain
Ibiza in September: weather, sea & travel advice
This month's data profile
Sea conditions lead
Ibiza in September is climatically well suited to family holidays, beach holidays, city breaks and active holidays and hiking. The average daily high is around 25 °C, and the sea is about 25 °C. With about 9 rainy days it is moderate.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
87/100 · #4
Warmth
#3
Dryness
#11
Sun
#6
Sea warmth
#2
Published best categories: Overall, Beach, Family
Ibiza · SeptemberPhoto: UnFUG-Fabi · CC0Climate facts
- Average high
- 25 °C
- Average low
- 23 °C
- Sea
- 25 °C
- Rainy days (est.)
- 9 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 72 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 28 | 25 | 4 | 22 | 7.9 | 73 | 3.4 | 26 | 90 |
| September (selected) | 25 | 23 | 9 | 62 | 6.1 | 72 | 3.8 | 25 | 87 |
| October | 22 | 20 | 9 | 62 | 4.4 | 75 | 4.2 | 22 | 81 |
How do the previous and next months compare?
Baseline: September (87/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | +3 | +2.4 °C | +2 °C | -5.5 | -40.2 mm | +1.8 h | +0.8 % | -0.4 m/s | +1.3 °C |
| October | -6 | -3.2 °C | -3.1 °C | -0.6 | +0.7 mm | -1.7 h | +2.9 % | +0.3 m/s | -2.7 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Ibiza in September?
The average daily high is around 25 °C, with an average daily low of about 23 °C.
Can you swim in Ibiza in September?
The sea is about 25 °C (warm).
Does it rain a lot in Ibiza in September?
The curated estimate is about 9 rainy days per month, not a directly measured long-term average. Total precipitation averages around 62 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Ibiza?
By the climate score, June, July, August and September are the strongest months for Ibiza. For a beach trip: June, July, August and September. September is one of them.