Birsay Bay surfForecast / Scot – Orkney / UK

information circle16 Day Weather and Surf, issued 6 pm Saturday 30 May 2026 BST
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
9.9° C
(Which is normal for this time of year)

Birsay Bay surf forecast from 30 May 2026:

  • Best quality surf: Friday 5 Jun, 7PM (local time) - 10ft (3.0m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Saturday 6 Jun, 1AM (local time) - 11ft (3.5m), 12s period, W swell with 2,966 kJ wave energy.
  • Next surfable swell (1★+): Sunday 31 May, 1AM (local time) - 3.5ft (1.1m), 10s period with N 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 Sunday (May 31) at 1AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.9m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Birsay Bay in the next 16 days are 3.5m 12s and forecast to arrive on Saturday (Jun 06) at 1AM. 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 Saturday (Jun 06) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 31st May)3.5ft (1.1m) 10s
Best Surf 7PM (Fri 5th Jun)10ft (3.0m) 7s
Most Powerful 1AM (Sat 6th Jun)11ft (3.5m) 12s

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 19mm), heaviest on Sat night. Very mild (max 13°C on Sat afternoon, min 10°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Thu afternoon. Very mild (max 12°C on Thu night, min 10°C on Wed night). Wind will be generally light.

Sat
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
2
0
0
0
1
2
0
1
1
0
1
2
2
2
2
1
4
4
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
W
7
1.1
N
10
1
W
12
0.9
WSW
11
1
WSW
13
1
WSW
11
0.9
WSW
11
0.7
WSW
11
0.6
WSW
10
0.6
WSW
10
0.6
WSW
9
0.5
W
15
0.7
W
14
1
W
12
0.9
WSW
12
0.9
WSW
11
1.9
WSW
7
1.7
WSW
12
2.1
WSW
11
3.5
W
12
2.4
W
11
Wave Graph
Metric surfscale
Energy kJ
86
219
279
217
345
278
205
119
77
75
68
107
181
309
228
198
397
861
1124
2966
1289
Wind (km/h)
20
SE
10
SSE
15
WNW
20
W
20
WSW
15
WSW
20
SE
25
ESE
20
ESE
10
ESE
25
WSW
15
SE
20
ESE
25
SE
10
SSW
10
S
20
SW
15
SSW
10
SSE
25
WSW
30
WSW
off
off
cross-on
cross-on
cross-on
cross
off
off
off
cross-off
cross-on
off
off
off
cross-off
cross-off
cross
cross-off
off
cross-on
cross-on
High Tide
9:04PM2.88m
9:23AM2.80m
9:38PM2.91m
10:00AM2.78m
10:12PM2.91m
10:37AM2.71m
10:48PM2.88m
11:14AM2.61m
11:26PM2.82m
11:53AM2.49m
00:04AM2.74m
12:35PM2.35m
00:45AM2.66m
Low Tide
3:19AM0.49m
3:31PM0.54m
3:54AM0.47m
4:05PM0.57m
4:30AM0.48m
4:40PM0.62m
5:08AM0.52m
5:15PM0.68m
5:47AM0.59m
5:51PM0.76m
6:29AM0.67m
6:30PM0.85m
7:13AM0.73m
light rain
mod rain
mod rain
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:13
4:11
4:09
4:07
4:07
4:05
4:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:07
10:08
10:10
10:13
10:14
10:15
10:16
10:19
1
10
8
1
Temp °C
13
11
11
12
11
11
12
11
11
11
11
11
11
11
11
11
12
12
12
12
11
8
10
8
8
8
8
8
6
8
9
8
8
7
8
9
9
9
9
10
10
5
Swell 1
Height (m)
Direction
Period (s)
0.9
W
7
1.1
N
10
1
N
10
0.9
WSW
11
1
WSW
13
1
WSW
11
0.9
WSW
11
0.7
WSW
11
0.6
WSW
10
0.6
WSW
10
0.6
WSW
9
0.5
WSW
9
0.7
W
14
1
W
12
0.9
WSW
12
0.9
WSW
11
0.8
WSW
11
1.7
WSW
12
0.7
W
14
2.4
W
11
Energy kJ
86
219
184
217
345
278
205
119
77
75
68
47
181
309
228
198
164
861
196
1289
Swell 2
Height (m)
Direction
Period (s)
0.5
N
8
0.9
WSW
8
1
W
12
0.9
N
9
0.7
N
9
0.5
N
8
0.5
N
8
0.4
NNE
7
0.5
N
9
0.5
NNE
8
0.5
N
8
0.4
WSW
5
0.5
WSW
10
0.3
NNE
7
0.2
NNE
7
0.2
NNE
7
0.1
N
7
0.7
W
15
Energy kJ
32
101
279
134
74
31
28
18
39
39
31
8
52
11
5
5
1
208
Swell 3
Height (m)
Direction
Period (s)
0.3
N
12
0.3
W
13
0.1
N
10
0.1
W
18
0.5
W
15
0.4
NNE
8
0.2
N
7
0.1
E
7
0.1
E
8
0.5
W
15
Energy kJ
24
32
2
6
107
19
4
1
1
110
Wind waves
Height (m)
Direction
Period (s)
0.3
SE
3
0.2
WSW
2
0.7
W
12
0.3
ESE
3
0.3
ESE
3
0.2
E
3
0.6
SE
3
0.5
SE
3
0.7
WSW
4
1.9
WSW
7
0.7
S
4
2.1
WSW
11
3.5
W
12
0.7
S
4
Energy kJ
1
1
130
1
2
1
6
5
13
397
16
1124
2966
12
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
2
1
1
1
1
1
2
2
2
2
1
4
4
1
2
Distance (km)
0
0
41
60
53
19
0
59
0
0
59
0
0
0
0
0
53
0
0
62
55
Best forecast wave conditions in Orkney Islands
Rating
(10 max)
1
2
1
1
2
1
1
1
2
2
2
2
4
4
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
2
1
2
3
2
2
2
2
1
1
1
3
3
2
2
4
4
4
4
3
Header Global
Rating
(10 max)
7
7
6
5
5
4
5
5
6
4
4
5
5
5
4
5
8
5
5
7
9
  • 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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