Algarve, Portugal
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Algarve

September beach and weather guide

Based on 5 years of historical ERA5 climate data

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September beach conditions — historical average

Good
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25.8°C Temp
18.5°C Sea temp
2.6 Rain days
10.7h Sunshine hrs
73.0% Humidity
100%

Reliable conditions

5 of 5 years were good

Year by year — mid September

2024 Good 26.4°C · 2 rainy days · 11.3h sun
2023 Mixed 25.0°C · 5 rainy days · 10.3h sun
2022 Good 25.3°C · 3 rainy days · 10.5h sun
2021 Good 26.2°C · 1 rainy day · 10.6h sun
2020 Good 26.1°C · 2 rainy days · 11.0h sun

Other months in Algarve

April May June July August September October

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Each trip type is scored on what matters most for it — snow days for skiing, sea temp for beach, sunshine for sightseeing.

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About Algarve in September

Based on 5 years of ERA5 historical climate data, September in Algarve has historically been good for a beach holiday. Average temperatures of 25.8°C with sea temperatures around 18.5°C and 2.6 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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