Height
5.4m
Hs
Period
9s
Tp
Direction
—
Water
7.6°C
Last update: 28 Oct, 16:31
Access historical readings and compare readings with the forecast
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Last 24 hours
Time(GMT) | Wave height | Max height | Period | Direction | Water temperature | Energy |
|---|---|---|---|---|---|---|
Vestfirðir, Iceland · 10.3 km offshore
Buoy Straumnesdufl continuously measures essential oceanographic parameters for surfing and water sports. (66.437737° lat, -23.365917° lng)
On 28 October 2026 at 16:31 GMT: 5.4 m significant wave height, 9 s period, water at 7.6 °C.
This marine station records significant wave height, maximum height, wave period, swell direction, and water temperature.
This buoy's observations are supplied through Vegagerðin wave buoys by Vegagerðin.
The average of the highest third of waves. This is the most representative measure of the wave size you'll see on the water.
The highest wave recorded during the measurement period. Generally 1.5 to 2 times the significant height.
The time in seconds between two wave crests. A long period (>12s) indicates more powerful and consistent groundswell.
The direction the swell is coming from. The impact on the coast depends on the shoreline orientation.
Significant height (Hs) is the average of the highest third of waves, representing what you typically observe. Maximum height (Hmax) is the largest wave measured, often 1.5 to 2 times higher than Hs. A set of large waves can occasionally exceed Hs.
A long period (>12s) means waves have traveled far and carry more energy (groundswell). A short period (<8s) indicates local wind-generated swell, more disorganized. For surfing, longer periods produce more powerful and better-shaped waves.
Buoys typically transmit their data every 30 minutes to 1 hour. The delay between measurement and display depends on the transmission network and our collection system.
The buoy measures direction offshore. Waves change direction as they approach the coast due to refraction (seabed effect). Beach orientation and coastal obstacles also influence the final wave direction.
| Oct 28, 04:31 PM | 5.4m 4331 kJ | - | 8.7s | - | 7.6°C | 4331 kJ |
| Oct 28, 04:02 PM | 4.8m 3115 kJ | - | 8.3s | - | 7.5°C | 3115 kJ |
| Oct 28, 03:31 PM | 5.2m 3834 kJ | - | 8.5s | - | 7.7°C | 3834 kJ |
| Oct 28, 03:01 PM | 5.2m 4016 kJ | - | 8.7s | - | 7.7°C | 4016 kJ |
| Oct 28, 02:32 PM | 5.8m 5467 kJ | - | 9.1s | - | 7.7°C | 5467 kJ |
| Oct 28, 02:01 PM | 5.4m 4533 kJ | - | 8.9s | - | 7.7°C | 4533 kJ |
| Oct 28, 01:31 PM | 5.7m 5280 kJ | - | 9.1s | - | 7.7°C | 5280 kJ |
| Oct 28, 01:02 PM | 6.0m 5850 kJ | - | 9.1s | - | 7.7°C | 5850 kJ |
| Oct 28, 12:31 PM | 6.1m 6047 kJ | - | 9.1s | - | 7.7°C | 6047 kJ |
| Oct 28, 12:01 PM | 5.5m 5134 kJ | - | 9.3s | - | 7.7°C | 5134 kJ |