Costa Smeralda, Sardinia, Italy
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Costa Smeralda

May beach and weather guide

Based on 5 years of historical ERA5 climate data

Photo by Claudia K. Hoeche on Unsplash

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May beach conditions — historical average

Mixed
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21.4°C Temp
18.6°C Sea temp
3.6 Rain days
11.8h Sunshine hrs
71.7% Humidity
80%

Reliable conditions

4 of 5 years were good

Year by year — mid May

2025 Mixed 22.9°C · 2 rainy days · 12.3h sun
2024 Mixed 22.3°C · 5 rainy days · 11.8h sun
2023 Mixed 19.5°C · 8 rainy days · 9.6h sun
2022 Mixed 22.7°C · 1 rainy day · 13.4h sun
2021 Mixed 19.8°C · 2 rainy days · 11.9h sun

Other months in Costa Smeralda

May June July August September October

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About Costa Smeralda in May

Based on 5 years of ERA5 historical climate data, May in Costa Smeralda has historically been mixed for a beach holiday. Average temperatures of 21.4°C with sea temperatures around 18.6°C and 3.6 rainy days on average.

4 of the last 5 years had good beach conditions during this period. This data uses ERA5 reanalysis records — real historical measurements, not generalised averages.

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