Costa Smeralda, Sardinia, Italy
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Costa Smeralda

September beach and weather guide

Based on 5 years of historical ERA5 climate data

Photo by Claudia K. Hoeche on Unsplash

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September beach conditions — historical average

Good
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26.5°C Temp
24.0°C Sea temp
3.2 Rain days
10.6h Sunshine hrs
71.8% Humidity
100%

Reliable conditions

5 of 5 years were good

Year by year — mid September

2024 Good 23.7°C · 5 rainy days · 10.0h sun
2023 Excellent 28.2°C · 4 rainy days · 10.0h sun
2022 Excellent 28.0°C · 1 rainy day · 11.5h sun
2021 Good 26.4°C · 2 rainy days · 10.7h sun
2020 Good 26.4°C · 4 rainy days · 10.9h sun

Other months in Costa Smeralda

May June July August September October

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About Costa Smeralda in September

Based on 5 years of ERA5 historical climate data, September in Costa Smeralda has historically been good for a beach holiday. Average temperatures of 26.5°C with sea temperatures around 24.0°C and 3.2 rainy days on average.

5 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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