In the Cyclades the meltemi, the summer north wind, rules. The ferry company warns that schedules “may be subject to change, depending on weather conditions”, and there is not a single tree on the island: sun and wind in equal measure. Check this before buying your ticket.
Scattered clouds
Indicative reference based on OpenWeatherMap data for the site’s coordinates. Whether to sail is always the operator’s call. Delos has no shade: a cap, water and sun cream even when it blows.