
What to Wear on a Blue Cave Tour by Month
Month-by-month dressing guide for the Blue Cave 5 Island Tour from Split — what to wear in April, May, June, July, August, September, and October, with the small layers that make the day comfortable.
By Ante (Co-founder & Engineer) · 6 min read · Updated 2026-05-23
The principle: layers, not outfits
The Blue Cave day shifts temperature constantly. Cool 06:30 hotel-to-marina walk. Cold open-sea crossing under 23-knot wind. Warm Stiniva mid-morning. Hot Hvar piazza at lunchtime. Cool open-sea crossing again. Warm sunset deck on the return.
Trying to dress for one of these temperatures means being wrong for the others. The trick is layers you can add and remove. A swimsuit, a t-shirt, a light long-sleeve, a windbreaker. The wind jacket on the boat handles the coldest moments. Everything else lives in your bag.
April — winter-spring crossover
Swimsuit (cold dip only, optional), thermal short-sleeve base layer, fleece or wool sweater, windbreaker or light shell, long trousers, closed shoes, wool beanie for the crossing.
Air on the boat at 25 knots feels like 8 to 12 degrees. Adding a wool layer over your t-shirt and a windbreaker on top is the difference between miserable and fine.
Once ashore at Hvar — peel layers. The piazza is sun-warmed and 18 to 22 degrees most April days.

May — light but layered
Swimsuit, t-shirt or light cotton long-sleeve, light cotton or fleece overshirt, windbreaker, light trousers or shorts (depending on the week), sneakers or sandals with straps.
May mornings on the open sea are 15 to 18 degrees in real feel. By midday on Hvar it is 22 to 26. Layer down through the day.
A scarf or buff for the neck on the morning crossing is more useful than expected.
June — start of light dressing
Swimsuit, t-shirt, light long-sleeve (technical or cotton), windbreaker for the crossing only, shorts, sandals with straps or light sneakers.
The windbreaker can stay packed once you are out of the open crossing. From mid-June, even the morning ride is bearable in a long-sleeve only.
July and August — the heat months
Swimsuit, light short-sleeve, optional long-sleeve linen or UV shirt for sun protection (more important than warmth), shorts, sandals.
The wind jacket on the boat handles the rare cool moments. Most of the day you are in swimwear under a light shirt.
Sun protection becomes the dressing priority instead of warmth. Long-sleeve UV shirts, a wide-brim hat, sunglasses, lip balm with SPF. Cotton in light colours over your shoulders is genuinely useful at noon.

September — perfect light dressing
Swimsuit, t-shirt or light long-sleeve, a thin cotton or merino layer for the morning and the return ride, shorts, sandals.
Mornings can be cool — 16 to 19 degrees on the open water before 09:00. Days warm to 26 to 30 by midday. Late September starts getting an autumn edge after sunset.
A light fleece for the late afternoon return ride is worth bringing in the second half of September.
October — autumn comes back
Swimsuit (optional, for the brave swimmers), t-shirt, fleece or thicker long-sleeve, windbreaker or light shell, shorts or light trousers, sneakers.
Air on the open crossing can feel like 12 to 16 degrees in real terms. The afternoon return in late October is properly cold without a windbreaker.
October is the month people forget warm layers and regret it. Pack more than feels necessary.
Footwear specifically
On the boat: bare feet or flip-flops. Crews appreciate guests removing hard-soled shoes before boarding — pebbles and grit scuff the deck.
At swim stops: water shoes if you have them. Stiniva and Pakleni beaches are pebble and the entry is sharp on bare feet. Optional but useful.
In Hvar town: closed-toe sandals or light sneakers. Cobblestones are unforgiving to flip-flop soles.
The day-packing list
A small daypack (10 to 20 litres) carries everything for the day. Inside: layers for the temperature shift, swimsuit if not already worn, towel, sunscreen, hat, sunglasses, phone with waterproof case, power bank, cash for cave entrance and lunch, water bottle, lip balm, motion sickness pill.
Leave the rest at the hotel. Big suitcases and DSLR cameras with multiple lenses are not boat-friendly.
Further reading: for more practical detail, see our what-to-pack speedboat guide, the by-month Blue Cave breakdown, the September shoulder-season feature, and the sea-sickness honest read. Run is /tours/blue-cave-5-island-tour.
Ready to plan the route?
Compare group and private speedboat tours from Split, or go directly to the route mentioned in this guide.
About the author

Ante
Co-founder & Engineer · 15 seasons in Split
Co-founder with over 15 years on the sea and a background in shipbuilding. Ante keeps both boats in peak condition and personally inspects each one before every departure — engine, safety kit, life jackets, radio, flares. The boats run the way they do because he built and maintains them.
Meet the rest of the crew →