Lisbon Coast, Portugal
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Lisbon Coast

August beach and weather guide

Based on 5 years of historical ERA5 climate data

Photo by Cassia Tofano on Unsplash

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August beach conditions — historical average

Good
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29.9°C Temp
20.0°C Sea temp
0.0 Rain days
12.6h Sunshine hrs
65.1% Humidity
100%

Reliable conditions

5 of 5 years were good

Year by year — mid August

2025 Excellent 31.8°C · 0 rainy days · 12.7h sun
2024 Good 30.1°C · 0 rainy days · 12.3h sun
2023 Good 30.0°C · 0 rainy days · 12.2h sun
2022 Good 28.3°C · 0 rainy days · 12.9h sun
2021 Good 29.5°C · 0 rainy days · 12.9h sun

Other months in Lisbon Coast

May June July August September October

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About Lisbon Coast in August

Based on 5 years of ERA5 historical climate data, August in Lisbon Coast has historically been good for a beach holiday. Average temperatures of 29.9°C with sea temperatures around 20.0°C and 0.0 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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