Conditions at Sao Juliao in June
June: Small Summer Swell and the Northerly Gale
June is when the Azores High fully locks into place and Sao Juliao feels the summer squeeze. Average swell height is just 1.5m (4.9ft) with a shortening 9.2s period, and the swell direction shifts sharply to NNW (40.5%), with NW (32.0%) and WNW (17.4%) backing it up. This is mostly windswell and weak groundswell rather than the long-period groundswell of winter. The wind regime turns harsh: NNW winds make up a massive 47.3% of all observations, and with N (13.0%) and NW (9.5%) added, the north quadrant dominates. Ideal offshore flow all but disappears (only 5% of the time). On the bright side, water temp reaches 17.5°C, air temps average 18.9°C, and precipitation drops to nearly zero (0.38 mm/day). If you find an east wind day in June, treat it as a gift - it might be the best small-wave day of the month.
Average Spot conditions at Sao Juliao in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Sao Juliao 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 Sao Juliao for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Sao Juliao 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 Sao Juliao.