Birsay Bay Surf Break

Lat Long: 59.13° N 3.33° W

Birsay Bay WaveFinder

Issued: 6 pm 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Birsay Bay sea temperature is
12.3° C
0.4° 

Birsay Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Birsay Bay surf forecast from 7 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 4AM (local time) - 5ft (1.6m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Thursday 9 Jul, 7PM (local time) - 5.5ft (1.7m), 9s period, W swell with 445 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 4AM (local time) - 5ft (1.6m), 9s period with W swell.

Best Forecast Surf Conditions for Birsay Bay this week:

The surf forecast for Birsay Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 09) at 4AM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Birsay Bay in the next 16 days are 1.7m 9s and forecast to arrive on Thursday (Jul 09) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Jul 14) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Thu 9th Jul)5ft (1.6m) 9s
Best Surf 4AM (Thu 9th Jul)5ft (1.6m) 9s
Most Powerful 7PM (Thu 9th Jul)5.5ft (1.7m) 9s

Table - best surf conditions forecast for Birsay Bay over the next 16 days.


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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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