Warm in May
25°C average high
avg high · 15° at night
25°C+ on 5 in 10 days
Sardinia, Italy
Olbia & Costa Smeralda weather in May
Is it warm? Mostly. May in Olbia & Costa Smeralda is mild: afternoons average 24°C and nights 12°C. Most days (80%) peak between 20°C and 27°C.
Mild · average high
24°C
25°C or more on about three in ten days; 20°C or more on about nine in ten days.
- Average low12°overnight
- Sea18°average, 2022–2025
- Rainy days552 mm in the month
- SkySome cloud42% cloud · 40% clear days
How warm it really gets
Every May afternoon from 2011–2025: 465 days. Most (80%) peaked between 20° and 27°.
May, year by year
The average May high in each year. The warmest, 2022, averaged 26°C; the coolest, 2019, 21°C.
Compared with home
Average May highs. Expect rain on about 5 days (52 mm in a typical month).
- Olbia & Costa Smeralda24°
- London19°
- Glasgow17°
- Manchester16°
- Cork16°
- Belfast16°
- Dublin16°
Warmer in May, not much further
Flying times are estimates from Dublin; Olbia & Costa Smeralda is about 2h 45m.
Hot in May
29°C average high
avg high · 16° at night
25°C+ on 8 in 10 days
Warm in May
25°C average high
avg high · 15° at night
25°C+ on 6 in 10 days
Air: Copernicus ERA5-Land, 2011–2025, matched to the official averages for Olbia airport. Sea: Copernicus ERA5, 2022–2025. Rainy days = days with 1 mm of rain or more, as weather stations count them. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology