Birsay Bay surfForecast / Scot – Orkney / UK

information circle16 Day Weather and Surf, issued 11 am Wednesday 25 Mar 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Birsay Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Birsay Bay sea temperature is
7.7° C
(Which is normal for this time of year)

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 (Mar 26) at 3PM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 2.4m and 12s. 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 9.0m 17s and forecast to arrive on Saturday (Mar 28) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Thursday (Mar 26) at 9PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 26th Mar)10ft (3.0m) 11s
Best Surf 3PM (Thu 26th Mar)10ft (3.0m) 11s
Most Powerful 6AM (Sat 28th Mar)30ft (9.0m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 12mm), heaviest on Fri night. Mild temperatures (max 8°C on Thu night, min 3°C on Wed morning). Winds increasing (light winds from the SSW on Thu afternoon, gales from the WSW by Fri night).

Days 3-6 Weather Summary Moderate rain (total 16mm), heaviest on Sat night. Mild temperatures (max 8°C on Sun morning, min 4°C on Sun night). Winds decreasing (gales from the WNW on Sun night, moderate winds from the W by Mon night).

Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
!
0
0
!
!
!
!
0
0
0
!
!
!
!
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
6
NW
6
NNW
6
NW
4
N
3
NNW
1.8
N
3.5
W
7
WNW
8
WNW
8.5
WNW
7.5
WNW
5
WNW
4.5
W
5.5
W
8.5
WNW
9
WNW
8
WNW
5
WNW
4
W
4.5
W
5
WNW
Period(s) (?)121312121112101918161513111315161515141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9743122591102240761945926286636079403473582525464833552301071732647405602758611601657968497546
Wind
(km/h)
55
NNW
60
NNW
65
NNW
40
NW
10
SSW
40
SW
45
WSW
50
WSW
65
SW
60
W
60
WNW
40
SW
65
SW
70
W
70
WNW
70
WNW
65
WNW
35
WNW
50
WSW
60
WSW
50
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcross-
off
crosscross-
on
cross-
on
crosscross-
on
oncrosscrosscross-
on
cross-
on
cross-
on
oncross-
on
cross-
on
cross-
on
on
High Tide
/ height (m)
1:07PM
2.48
1:34AM
2.45
2:46PM
2.29
3:14AM
2.39
4:32PM
2.30
4:47AM
2.52
5:49PM
2.45
5:53AM
2.73
6:42PM
2.64
6:43AM
2.94
7:24PM
2.80
7:24AM
3.10
7:59PM
2.93
Low Tide
/ height (m)
7:18PM
0.98
8:08AM
0.88
8:49PM
1.17
9:57AM
0.89
10:33PM
1.12
11:25AM
0.68
11:46PM
0.92
12:24PM
0.42
12:37AM
0.69
1:08PM
0.20
1:19AM
0.49
1:46PM
0.05
1:56AM
0.33
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Sunrise6:01--5:58--5:56--5:52--5:50--5:47--5:43--
Sunset-6:37--6:39--6:42--6:45--6:46--6:49--6:52-
light rain
light rain
cloud
part cloud
cloud
rain showers
light rain
light rain
thunderstorm
clear
rain showers
light rain
rain showers
rain showers
rain showers
cloud
part cloud
rain showers
light rain
part cloud
part cloud
Rain (mm)
21---1224-15413--21--
Temp. °C534448666667865577997
Feels °C (?)-8-12-11-7-1-1-5-6-8-7-8-3-5-10-11-10-6-4-1-3-5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Birsay Bay Surf forecast

The above surf forecast table for Birsay Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Birsay Bay can be found by selecting the local surf guide option on the grey menu. Our Birsay Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Birsay Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Birsay Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Orkney Islands? If you are looking for accommodation near Birsay Bay, camping, hotels and holiday cottages in Orkney Islands, consider staying in Kirkwall which is 26 km (16 miles) away. Other places in and around Orkney Islands where you can find information about places to rent, and car hire include Scrabster which is 58 km (36 miles) away and Wick, 79 km (49 miles) away.

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