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Grim Ness surfForecast / Scot – Orkney / UK
12 Day Weather and Surf, issued 12 pm Monday 18 Aug 2025 BST
Best Forecast Surf Conditions for Grim Ness this week:
The surf forecast for Grim Ness over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 23) at 7AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.3m and 5s. Another secondary swell of 0.3m and 3s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Grim Ness in the next 12 days are 1.9m 6s and forecast to arrive on Monday (Aug 25) at 7PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Aug 21) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 23rd Aug) | 2ft (0.6m) 9s |
| Best Surf | 4PM (Mon 25th Aug) | 6ft (1.8m) 6s |
| Most Powerful | 7PM (Mon 25th Aug) | 6ft (1.9m) 6s |
Table - best surf conditions forecast for Grim Ness over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 13°C on Mon night, min 10°C on Mon morning). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Sat afternoon, min 10°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 7 | 8 | 8 | 3 | 5 | 8 | 9 | 7 | 8 | 8 | 9 | 4 | 6 | 7 | 10 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 8 | 10 | 4 | 12 | 38 | 191 | 385 | 65 | 64 | 49 | 35 | 35 | 42 | 51 | 59 | 62 | 50 | 31 | 29 | 29 | 20 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | on | on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:01PM 2.01 | 8:59AM 2.08 | 9:21PM 2.13 | 10:13AM 2.20 | 10:23PM 2.33 | 11:09AM 2.33 | 11:12PM 2.52 | 11:54AM 2.43 | 11:54PM 2.69 | 12:33PM 2.50 | 12:32AM 2.79 | 1:08PM 2.52 | 1:08AM 2.83 | ||||||||
Low Tide / height (m) | 1:52PM 0.93 | 2:36AM 0.76 | 3:19PM 0.89 | 3:55AM 0.59 | 4:22PM 0.79 | 4:54AM 0.40 | 5:10PM 0.68 | 5:41AM 0.23 | 5:49PM 0.58 | 6:21AM 0.11 | 6:24PM 0.50 | 6:56AM 0.06 | 6:56PM 0.47 | ||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
| Sunrise | 5:35 | - | - | 5:37 | - | - | 5:41 | - | - | 5:43 | - | - | 5:45 | - | - | 5:47 | - | - | 5:50 | - | - |
| Sunset | - | 8:52 | - | - | 8:50 | - | - | 8:46 | - | - | 8:44 | - | - | 8:40 | - | - | 8:38 | - | - | 8:36 | - |
 | |  |  | |  | | | | | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 11 | 13 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 13 |
| Feels °C (?) | 8 | 10 | 10 | 6 | 6 | 7 | 7 | 7 | 5 | 5 | 5 | 5 | 6 | 7 | 7 | 8 | 8 | 9 | 8 | 8 | 9 |
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Recent Eyeball Surf Reports for Scot - Orkney
Continuing clean conditions at Grim Ness (calm at Kirkwall Airport 14 km from Grim Ness). No surfable waves
2 h 2 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grim Ness surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Grim Ness Surf forecast
The above surf forecast table for Grim Ness provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grim Ness can be found by selecting the local surf guide option on the grey menu. Our Grim Ness 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 (Grim Ness) 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 Grim Ness 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 Grim Ness, camping, hotels and holiday cottages in Orkney Islands, consider staying in Kirkwall which is 19 km (12 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 44 km (27 miles) away and Wick, 45 km (28 miles) away.
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