Wind Days = % of days with 12–35 knot average wind speed (ideal kiting conditions). Based on 6 years of historical weather data.
Partially sheltered coastline with moderate, varied conditions
Hvasser is a protected bay located on the Norwegian coast near Tønsberg, characterized by steep cliff formations and a narrow inlet opening to the Oslofjord. The spot sits within a sheltered bay environment surrounded by forested terrain and sparse residential development. Water conditions are typically choppy rather than wave-rich, with modest swell averaging 0.82m. The narrow bay entrance and surrounding topography limit wind consistency, reflected in the 45.7% reliability rating. Best conditions occur with northwesterly to westerly winds that approach side-shore to the bay's northeast-facing opening. Water temperatures average 9.1°C, requiring appropriate thermal protection. This spot suits intermediate riders seeking a more protected environment with manageable conditions rather than high-performance waves. The combination of shallow nearshore areas, rocky hazards, and boat traffic requires careful route planning. Low wind reliability and modest fetch mean sessions depend heavily on weather windows. Local knowledge of tidal influences and seasonal wind patterns is valuable for optimizing sessions.
Real-time wind conditions and 10-day forecast powered by ECMWF
Historical ocean data for wetsuit planning & water type
Normal wind chop, typical conditions
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 | 63% | 15kts | 2°feels -5° | AM |
| Feb | 59% | 14kts | 2°feels -4° | PM |
| Mar | 42% | 12kts | 3°feels -2° |
Plan your wetsuit and know what to expect in the water
Search for the best dates based on historical wind data.
Find Best Dates| AM |
| Apr | 33% | 11kts | 7°feels 2° | AM |
| May | 28% | 10kts | 12°feels 8° | AM |
| Jun | 32% | 10kts | 16°feels 14° | PM |
| Jul | 31% | 11kts | 18°feels 16° | PM |
| Aug | 37% | 11kts | 17°feels 15° | Eve |
| Sep | 43% | 12kts | 15°feels 12° | AM |
| Oct | 58% | 14kts | 10°feels 6° | Eve |
| Nov | 61% | 14kts | 6°feels 1° | PM |
| Dec | 61% | 13kts | 2°feels -3° | AM |