Cagliari & Campidano weather in July
July in Cagliari & Campidano averages daytime highs of 32.5°C and nights around 22.3°C, with about 13 hours of sunshine a day. The sea averages 26.8°C: genuinely warm, fine for long, lazy swims. Rain is genuinely rare, with roughly 0 wet days and about 1 mm in the whole month, and the sun is fierce (average peak UV 8), so cover up around midday.
Weather data by Open-Meteo.com (CC BY 4.0). Figures are ten-year averages from the historical record.
What July feels like
July is high summer: hot, dry and confident. The sea is warm from breakfast onwards, beach kiosks and boat charters run at full tilt, and life shifts to early mornings and long evenings, with a siesta-shaped hole in the afternoon. Book tables and sunbeds ahead in the hotspots, then use the reliable afternoon breeze: this is the month windsurfers and sailors circle. Around Cagliari and the Campidano the capital anchors everything, with Poetto's long beach and the south coast an easy reach away.
What to do in Cagliari & Campidano in July
Cagliari & Campidano in July: quick answers
July elsewhere on the island
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