- Home
- ...North America
United States- Cardiff Reef
Conditions at Cardiff Reef in June
June: Long-Period South Groundswell and a Persistent Onshore Flow
June is the gateway to summer. Average swell height eases to around 3ft (1m), but the average period reaches 13.8s - the longest of the year - as the Southern Hemisphere starts sending groundswell up the coast. The swell directions are textbook summer: SW (38.8%) and WSW (41.0%) dominate, with SSW (7.8%) and W (12.4%) filling in the gaps. Wave heights concentrate in the 2-3ft (0.6-0.9m) and 3-5ft (1-1.5m) range, but almost nothing above 5ft. This is clean, rideable but small.
Wind is the biggest problem. Ideal conditions occur just 1 percent of the time. The wind rose is dominated by W (30.0%) and WSW (27.8%), with SW (17.4%) close behind. Those are all directly onshore at Cardiff Reef, meaning bumpy, textured surface and limited quality. Your best bet is an early paddle before the sea breeze kicks in. Water temperatures are on the rise at 17.1°C, and the dry season has started with just 0.15 mm/day of rain.
Average Spot conditions at Cardiff Reef in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Cardiff Reef 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 Cardiff Reef for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Cardiff Reef 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 Cardiff Reef.