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Portuguese Atlantic

ERA5 reanalysis 2015-2024, 10 years

Roughest in Mar

86%

Week 10 · 3.6 m

Calmest in Jul

6%

Week 29 · 1.7 m

Week by week

Days above 2.5 m

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Rough end of the range — At the same height a long swell is a slow roll and a short chop is a hammering. Anything under about 6 seconds is chop.

Typical wave height

2.5 m

Wave period

9.5 s

Mean wind

34 km/h

Air temperature

16°C

Sailings that cross this water