Surf Forecasts:
Grindavik Antenas surf forecast from 20 Sep 2026:
- Best quality surf: Friday 25 Sep, 12AM (local time) - 20ft (6.0m), 14s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 25 Sep, 3AM (local time) - 18ft (5.5m), 14s period, S swell with 13,247 kJ wave energy.
- Next surfable swell (1★+): Friday 25 Sep, 12AM (local time) - 20ft (6.0m), 14s period with S swell.
Best Forecast Surf Conditions for Grindavik Antenas this week:
The surf forecast for Grindavik Antenas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 25) at 12AM. The primary swell is predicted to be 6.0m and 14s period with a secondary swell of 0.3m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Grindavik Antenas in the next 16 days are 5.5m 14s and forecast to arrive on Friday (Sep 25) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 13s period and expected on Thursday (Sep 24) at 9PM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 25th Sep) | 20ft (6.0m) 14s |
| Best Surf | 12AM (Fri 25th Sep) | 20ft (6.0m) 14s |
| Most Powerful | 3AM (Fri 25th Sep) | 18ft (5.5m) 14s |
Table - best surf conditions forecast for Grindavik Antenas over the next 16 days.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Very mild (max 11°C on Mon morning, min 8°C on Tue night). Winds increasing (light winds from the SW on Sun morning, gales from the ESE by Mon morning). | Days 4-6 Weather SummaryHeavy rain (total 39mm), heaviest during Thu morning. Very mild (max 11°C on Thu morning, min 8°C on Thu night). Winds decreasing (gales from the E on Wed night, light winds from the NW by Thu night). | ||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | WSW 10 | WSW 9 | SW 9 | S 9 | S 11 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | WSW 10 | WSW 9 | S 14 | S 13 | S 12 | S 10 | SSW 10 | SSW 9 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 601 | 755 | 299 | 97 | 1450 | 3435 | 10540 | 12920 | 6651 | 6267 | 4393 | 1780 | 278 | 65 | 12930 | 6724 | 2976 | 1141 | 378 | 108 | 80 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-on | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross | cross-on | on | cross-off | cross-off | on |
High Tide | 1:13PM2.18m | 2:05AM1.95m | 2:50PM2.30m | 3:23AM2.14m | 3:46PM2.51m | 4:09AM2.37m | 4:25PM2.73m | 4:44AM2.62m | 4:58PM2.93m | 5:16AM2.85m | 5:30PM3.10m | 5:47AM3.05m | 6:01PM3.23m | ||||||||
Low Tide | 8:03PM1.34m | 8:12AM1.24m | 9:22PM1.14m | 9:23AM1.03m | 10:07PM0.88m | 10:09AM0.77m | 10:40PM0.62m | 10:45AM0.53m | 11:11PM0.38m | 11:18AM0.30m | 11:40PM0.17m | 11:51AM0.13m | 00:10AM0.02m | ||||||||
 |  |  |  | |  |  | |  |  | |  | |  | | | | | | | | |
 | 7:05 | — | — | 7:07 | — | — | 7:11 | — | — | 7:13 | — | — | 7:16 | — | — | 7:18 | — | — | 7:22 | — | — |
 | — | 7:38 | — | — | 7:36 | — | — | 7:31 | — | — | 7:29 | — | — | 7:24 | — | — | 7:21 | — | — | 7:17 | — |
mm | — | — | 5 | 2 | 3 | 4 | 1 | 1 | — | — | — | 10 | 9 | 7 | 8 | — | 1 | 4 | 2 | — | — |
Temp °C | 10 | 9 | 9 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 9 | 10 | 9 | 10 | 9 | 9 | 9 | 9 |
Feels °C | 5 | 4 | 1 | -3 | 1 | 1 | -1 | -1 | 0 | -1 | 1 | 2 | 0 | -3 | 7 | 2 | 3 | 3 | 3 | 4 | 6 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 10 | WSW 9 | SW 9 | WSW 8 | — | — | — | — | — | NNW 12 | SW 11 | WSW 10 | WSW 9 | S 14 | SW 13 | S 12 | S 10 | SSW 10 | SSE 9 | SSE 8 |
| kJ | 601 | 755 | 299 | 97 | 7 | — | — | — | — | — | 13 | 1780 | 278 | 65 | 12930 | 2187 | 2976 | 1141 | 378 | 181 | 72 |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 15 | S 14 | SW 12 | WSW 8 | — | — | — | — | — | — | — | SSW 14 | S 19 | WSW 8 | NNW 13 | NW 14 | WNW 7 | SE 9 | SSW 9 | SSW 9 |
| kJ | 238 | 17 | 37 | 23 | 7 | — | — | — | — | — | — | — | 38 | 7 | 14 | 68 | 211 | 118 | 189 | 108 | 80 |
Swell 3 Height (m) Direction Period (s) | SW 14 | S 12 | S 12 | S 12 | — | — | — | — | — | — | — | — | S 17 | — | — | — | — | NW 13 | WNW 6 | WSW 8 | SW 11 |
| kJ | 8 | 11 | 11 | 11 | — | — | — | — | — | — | — | — | 6 | — | — | — | — | 45 | 59 | 46 | 29 |
Wind waves Height (m) Direction Period (s) | — | — | SE 5 | SE 8 | S 9 | S 11 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | — | SE 8 | SSE 11 | — | S 13 | — | — | — | WNW 6 | WNW 6 |
| kJ | — | — | 137 | 1057 | 1450 | 3435 | 10540 | 12920 | 6651 | 6267 | 4393 | — | 1265 | 3792 | — | 6724 | — | — | — | 46 | 48 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 54 | 34 | 349 | 349 | 349 | 1134 | 1109 | 1181 | 1109 | 1109 | 1181 | 349 | 1097 | 349 | 0 | 1044 | 1040 | 30 | 349 | 349 | 3 |
Best forecast wave conditions in Reykjanes Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Iceland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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