Conditions at Cap Sim in June
June: Summer Windswell Mode
By June the North Atlantic has gone quiet and Cap Sim feels it. The average swell height is 5.2ft (1.6m) and the average period is down to 8.4 seconds - short-period, locally generated windswell rather than groundswell. An incredible 75.5 percent of the swell comes from the NNW, with only small secondary contributions from NW and N. The west-southwest-facing beach needs more west in the swell to really show off, so the summer NNW windswell is not the ideal direction. The trade wind machine is fully switched on, with NNE winds at 44 percent and ideal wind drops to 30 percent. Strong offshore NE flow can keep the lines clean at times, but it can also blow hard enough to make paddling difficult and the surface bumpy on the offshore side.
Water temperature warms to 19.1°C and air temperatures average 20.3°C with almost no rain. June is best treated as a small-wave month; when a long-range SSW/SW pulse arrives under light offshore winds, it is a bonus.
Average Spot conditions at Cap Sim in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Cap Sim during June. 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 Cap Sim for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cap Sim for June. 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 Cap Sim.