Olbia (Costa Smeralda) weather in July
July in Olbia: sweltering, dry, with clean air — fine if you can take 36°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#1 of 12 months in Olbia · #30 of 1413 destinations to visit in July · comfort 95/100 (tier S)
- Days
- 33°C
- Nights
- 20°C
- Wet days
- 1
- Sun
- 13.2 h
- Humidity
- 61%
- Daylight
- 15 h
Traveller notes on Olbia in July
Forum posters describe July around Olbia and northern Sardinia as very pleasant for swimming, with daytime temperatures usually above 30C and sea temperatures around 24-25C, though posters flag a real risk of jellyfish this time of year. Posters consistently recommend packing a light wind or rain jacket and a light sweater for the evening despite the summer heat, since coastal evenings can turn noticeably cool. Posters also note Sardinia runs windier in summer than other seasons, a real factor for anyone planning beach days or boat trips. Posters generally rate July as calmer and less crowded than August, making it their preferred pick between the two peak summer months.
Other months in Olbia
Sardinia's forum describes January as the island's coolest month but genuinely variable - some posters had lovely sunny days with cold, clear nights (no cloud cover to trap any warmth), while others visiting in the same general window hit cold, wet and windy stretches instead. A clear midday can reach a pleasant high-teens C before dropping off fast into the afternoon and evening, but freezing temperatures are unlikely on the coast around Olbia. It's not remotely beach weather, but a mild, walkable winter month when you catch the good days.
Add your own note from Olbia's card on the map.
Olbia climate normals — July
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Olbia in July
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsSummer flights and ferries, Summer holidays in Italy, school holidays in 6 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Olbia's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherOlbia's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Olbia in July
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Summer flights and ferries
15 May – 1 Oct · usuallySummer season opensCrowdedOlbia is the gateway to the Costa Smeralda and its airport and the Golfo Aranci ferries run on a summer timetable; out of season the direct routes to northern Europe disappear almost entirely.
- Season
Sea warm enough
20 Jun – 5 Oct · usuallyThe gulf and the Maddalena beaches are comfortable from late June and best in September, when the water is at its warmest and the yacht traffic has gone. June water is bracing.
Nearby, and something's on
Within 300 km of Olbia — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Olbia?
Olbia in July — FAQ
- Is July a good time to visit Olbia?
- July in Olbia: sweltering, dry, with clean air — fine if you can take 36°C afternoons. It ranks #1 of 12 months for Olbia on SeasonMap's comfort score (95/100).
- What is the weather like in Olbia in July?
- In July, Olbia averages a daily high of 33.4°C and a low of 20.2°C, with about 4.1 mm of rain over roughly 0.8 rainy days.
- What is the air quality in Olbia in July?
- Olbia has a mean US Air Quality Index of about 45 in July.
Within 300 km: Bonifacio's Lavezzi boat season around 15 Apr – 31 Oct, and Cagliari's Flamingos nesting at Molentargius around 1 Apr – 15 Aug.