Ibiza Weather & Wind for Yacht Charter — A Practical Guide
Direct answer
Ibiza summer wind: typically calm at first light, 8–12 knots from south-west by 13:00 (the thermal), drops at sundown. Easterlies are the wind to plan around — they create swell in the channel to Formentera and make the lee of Es Vedrà uncomfortable. The captain checks the forecast at 20:00 the night before; the office holds a flexible window of 3–5 dates for sundown charters.
Ibiza's summer weather is, on most metrics, remarkable. Average rainfall in August is essentially zero. Sea temperature peaks at 26–27°C. The Balearics are sheltered from the worst of the Atlantic by Spain and from the worst of the Tyrrhenian by the Pitiusas channel. But the wind has a pattern, and chartering with the pattern rather than against it shapes the day more than most clients realise.
The daily thermal
In settled summer weather, the morning is calm — typically 0–5 knots from the west. The land heats faster than the water; by 11:00 the differential pulls a south-westerly into the Pitiusas at 8–12 knots. This builds through mid-afternoon, peaks around 15:00 at 12–18 knots, then drops at sundown back to 5–8 knots.
What the thermal means for the day
- The Formentera crossing is calm before 11:00, sportier 13:00–17:00
- Cala Bassa and Cala Comte (west-facing) are still swimmable in the afternoon but less still
- The lee of Es Vedrà (east side of the rock) is sheltered all day in westerlies
- East-coast anchorages (Tagomago, Cala Mastella) stay calmer in westerlies
Easterlies — the wind to plan around
When the wind shifts east — which happens 4–6 days per summer month — the Pitiusas pattern inverts. Cala Bassa (open to the west) becomes choppy, the lee of Es Vedrà becomes the windward side, the Formentera crossing becomes sportier. The east coast (Tagomago, Cala Mastella) becomes the wrong side. The office checks the forecast at 20:00 the night before and adjusts the route. For sundown charters, we hold a flexible window of 3–5 dates and confirm 48 hours ahead.
Wave height
Mediterranean wave heights in summer are typically 0.3–0.8m in settled weather, 1–1.5m on a windy day, occasionally 2m+ during easterlies. Yachts with stabilisers (Lady KC, Friendship 115, Aya One) hold steady at anchor through 1–1.5m comfortably. Smaller sport boats are choppier on the same sea.
Rare events
- Levante (strong easterly): 1–3 days per summer, kicks in over 24–48 hours, well-forecast
- Late-September squall: brief afternoon storms, usually 60–90 minutes
- Saharan dust haze: 2–4 days per year, makes the light orange-pink (better photography)
People also ask
Frequently asked
- Is the wind too strong to enjoy a yacht in Ibiza in August?
- Almost never. The August thermal averages 8–14 knots — comfortable for any yacht 14m+. Sport boats over 12m handle it without issue. Days where the wind exceeds 20 knots are rare (4–6 per month) and well-forecast.
- How often is the Formentera crossing rough?
- Rarely. Out of a typical week's worth of crossings in summer, 80%+ are flat. The captain checks the forecast the night before and adjusts timing — leaves at 09:00 if the thermal is building early, holds for first-light if a swell is forecast.
- What if our charter date has bad weather forecast?
- We hold a flexible 3–5 day window for short charters; for weekly bookings we adjust the route (move to the east coast or stay in the south for a day). Cancellation for weather is rare — we run the calendar around the forecast rather than against it.
The Office
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