Wind Days = % of days with 12–35 knot average wind speed (ideal kiting conditions). Based on 6 years of historical weather data.
Tenryugawa is a river mouth estuary where the Tenryū River meets the Pacific Ocean along Japan's southern Shizuoka coast. The spot is characterized by a narrow discharge channel flanked by developed industrial and agricultural areas, with visible sediment patterns indicating active river dynamics. The lagoon-like system shows clear tidal influence with sand bar formations and color gradients typical of freshwater-saltwater mixing zones. Wind reliability is relatively low at 33.2%, with average winds around 10.5 knots. Wave heights average 1.26m, making conditions moderate. The spot requires understanding of tidal currents and river outflow patterns, as seaward-flowing freshwater creates distinct navigational challenges. Best conditions occur with northerly winds that provide side-shore approach. The narrow channel and proximity to industrial infrastructure limit space and demand intermediate-level local knowledge. Kiters should monitor tide tables and be prepared for variable current conditions influenced by seasonal river flow variations.
Real-time wind conditions and 10-day forecast powered by ECMWF
Historical ocean data for wetsuit planning & water type
Proper waves for wave riding
Wind reliability by time of day (average across all months)
Months with 50%+ wind days (12–35 knots)
Historical averages based on 6 years of data
| Month | Wind Days | Avg Wind | Temp | Best Time |
|---|---|---|---|---|
| Jan | 61% | 14kts | 8°feels 3° | PM |
| Feb | 58% | 13kts | 9°feels 3° | PM |
| Mar | 42% | 12kts | 12°feels 8° |
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Find Best Dates| PM |
| Apr | 36% | 11kts | 15°feels 13° | PM |
| May | 20% | 9kts | 19°feels 18° | PM |
| Jun | 13% | 8kts | 23°feels 24° | PM |
| Jul | 13% | 8kts | 26°feels 30° | PM |
| Aug | 19% | 9kts | 28°feels 32° | PM |
| Sep | 22% | 9kts | 26°feels 29° | PM |
| Oct | 21% | 10kts | 20° | PM |
| Nov | 38% | 11kts | 16°feels 13° | PM |
| Dec | 56% | 13kts | 10°feels 5° | PM |