Conditions at Ikumi in June
June: Rainy Season, South Swell, and Clean Air
June is the onset of the East Asian rainy season (tsuyu), bringing the highest monthly precipitation of the winter half-year at 8.92 mm/day. The wind regime becomes even more favourable from a texture standpoint: SW (13.0 percent) and WSW (10.6 percent) lead, giving an ideal wind percentage of 37 percent and plenty of clean, glassy mornings. But the swell situation is bleak for Ikumi. S (30.7 percent), SSE (26.0 percent), and SE (20.3 percent) dominate, while ESE drops to just 5.8 percent and the entire NE-ESE optimal window accounts for only 6.1 percent of total swell. Average height is 3ft (0.9m), but at a marginal period of 7.4s, most of this is short-period windswell that is directionally wrong. Expect muddled surf with occasional small, clean days when a south swell refracts in - but not the east-facing power the beach is known for. Water temperature reaches 22.5°C; a 3/2 wetsuit is comfortable.
Average Spot conditions at Ikumi in June
Swell history for June
Wind history for June
Swell quality
Analyze the groundswell consistency at Ikumi 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 Ikumi for your next trip in June.
Ground swell
Ground swell by size
Wind conditions
Evaluate the wind and swell alignment at Ikumi 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 Ikumi.