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Surf Forecasts:
Grindavik Antenas surfForecast / Reykjanes Peninsula / Iceland
12 Day Weather and Surf, issued 11 pm Friday 17 Oct 2025 GMT
Best Forecast Surf Conditions for Grindavik Antenas this week:
The surf forecast for Grindavik Antenas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Oct 18) at 3AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.4m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Grindavik Antenas in the next 12 days are 1.8m 11s and forecast to arrive on Saturday (Oct 18) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 8s period and expected on Tuesday (Oct 21) at 3PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sat 18th Oct) | 4.5ft (1.3m) 10s |
| Best Surf | 9AM (Sat 18th Oct) | 5ft (1.5m) 11s |
| Most Powerful | 3PM (Sat 18th Oct) | 6ft (1.8m) 11s |
Table - best surf conditions forecast for Grindavik Antenas over the next 12 days.
Short Range Forecast Light rain (total 4mm), mostly falling on Sun morning. Mild temperatures (max 8°C on Fri night, min 4°C on Sun night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 15mm) heaviest on Mon night, then becoming colder with a dusting of snow on Tue morning. Mild temperatures (max 5°C on Mon night, min 1°C on Tue morning). Mainly near gales. | |||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 6 | 6 | 10 | 10 | 9 | 8 | 15 | 12 | 11 | 11 | 12 | 7 | 7 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 331 | 496 | 799 | 644 | 160 | 100 | 42 | 24 | 20 | 0 | 110 | 108 | 54 | 24 | 57 | 74 | 49 | 48 | 34 | 17 | 15 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | cross- off | off | cross- off | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | |
High Tide / height (m) | 4:16AM 2.63 | 4:31PM 2.87 | 4:52AM 2.83 | 5:05PM 2.96 | 5:23AM 2.99 | 5:36PM 3.01 | 5:53AM 3.11 | 6:05PM 3.03 | 6:21AM 3.18 | 6:34PM 3.01 | 6:50AM 3.19 | 7:03PM 2.94 | 7:20AM 3.15 | |||||||||
Low Tide / height (m) | 10:07PM 0.57 | 10:18AM 0.54 | 10:43PM 0.41 | 10:56AM 0.39 | 11:14PM 0.28 | 11:29AM 0.27 | 11:42PM 0.20 | 12:00PM 0.21 | 12:10AM 0.18 | 12:30PM 0.21 | 12:38AM 0.20 | 1:01PM 0.27 | 1:06AM 0.28 | 1:32PM 0.38 | ||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | ||||||||||||||||
| Sunrise | - | 8:26 | - | - | 8:29 | - | - | 8:32 | - | - | 8:34 | - | - | 8:37 | - | - | 8:41 | - | - | 8:44 | - | |
| Sunset | - | - | 6:01 | - | - | 5:59 | - | - | 5:54 | - | - | 5:52 | - | - | 5:49 | - | - | 5:45 | - | - | 5:42 | |
 |  |  |  |  | |  | | |  |  | | |  | | | | | | | | ||
Rain (mm) | - | - | - | - | 1 | 1 | 2 | - | - | 15 | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 8 | 8 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 2 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 0 | 0 | |
| Feels °C (?) | 6 | 4 | 3 | 3 | 5 | 3 | 3 | 0 | 0 | -2 | -10 | -5 | -6 | -7 | -8 | -8 | -10 | -10 | -11 | -13 | -11 | |
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Recent Eyeball Surf Reports for Reykjanes Peninsula
Continuing clean conditions at Grindavik Antenas (calm at Sléttan 12 km from Grindavik Antenas). 1.0m 10s swell from the S with a 0.3m 6s windswell from the WNW. 2 swells combining to make bigger set waves.
1 h 10 min ago
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Information about the Grindavik Antenas Surf forecast
The above surf forecast table for Grindavik Antenas provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grindavik Antenas can be found by selecting the local surf guide option on the grey menu. Our Grindavik Antenas 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 (Grindavik Antenas) 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 Grindavik Antenas 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.
Grindavik Antenas is 2 km (1 miles) from Grindavik. If you plan a holiday in Reykjanes Peninsula, look for hotels and other accommodation in Grindavik. Grindavik has rooms for a wide range of budgets as well as car hire and transport links.
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