Conditions at El Muelle in September
September: A Hint of Autumn Below a Summer Sky
September is a month of quiet hope. The average swell is still small at 1.4m (4.6ft), but the period stretches back to 10.0s, signaling that the Atlantic is starting to stir. Direction becomes more favourable again: NNW dominates at 57.4%, N adds 21.0%, and NW contributes 9.8%. Much of this is small-to-fun groundswell in the 1-1.5m (3-5ft) range, but the longer period gives El Muelle noticeably cleaner lines than July and August.
Winds still lean onshore, with NNE at 48.4% and N at 17.2%, but the intensity is lower than midsummer and the ideal wind score climbs to 3%. A couple of early autumn lows can sneak through and produce solid, long-period NW swell with southwest winds - those are the September gems. Water temperature is at its warmest of the year, 23.0°C, air temperature averages 23.0°C, and rainfall is a negligible 0.16mm/day. For the opportunistic surfer, September is the first month worth watching again.
Average Spot conditions at El Muelle in September
Swell history for September
Wind history for September
Swell quality
Analyze the groundswell consistency at El Muelle during September. Based on historical data, there is a % probability of groundswell occurring this month. The chart below provides a detailed breakdown of the average wave height distribution, offering deep insights into the swell quality and surf potential you can expect at El Muelle for your next trip in September.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at El Muelle for September. Our analysis shows that favorable offshore or side-shore winds coincide with surfable swell approximately % of the time. The accompanying graph illustrates the average size distribution of waves during these optimal wind windows at El Muelle.