Surf Forecasts:
How big are the waves at Grindavik Lighthouse ( Hopsnesta) today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 6.5ft (2.0m), 10s period with SW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 6ft (1.8m), 10s period with SW swell.
- Evening surf: Evening surf (18 Sep, local time) - 5ft (1.6m), 9s period with SW swell.
The current surf forecast for Grindavik Lighthouse ( Hopsnesta) at 6PM is: 1.7m 10s primary swell from a Southwest direction (forecast issued at 11:00am September 18). An open ocean swell of 0.3m 5s is not directed at the surf break, a second open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6.5ft (2.0m) | 10s |
| Afternoon (18 Sep) | 6ft (1.8m) | 10s |
| Evening (18 Sep) | 5ft (1.6m) | 9s |
Table - waves today at Grindavik Lighthouse ( Hopsnesta). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sun night. Very mild (max 10°C on Sat morning, min 8°C on Fri morning). Winds increasing (light winds from the N on Fri night, gales from the E by Sun night). | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 12 | SW 12 | WSW 11 | WSW 11 | WSW 9 | SW 10 | WSW 10 | WSW 10 | SW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 800 | 709 | 597 | 524 | 459 | 402 | 359 | 367 | 307 | 845 | 923 | 1321 | 1742 | 1849 | 1855 | 1567 | 587 | 392 | 755 | 726 | 652 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | cross | cross-off | cross-off |
High Tide | 10:16AM2.48m | 10:31PM2.13m | 11:22AM2.26m | 11:56PM1.94m | 1:13PM2.18m | ||||||||||||||||
Low Tide | 4:34PM1.13m | 4:39AM1.13m | 5:55PM1.34m | 6:11AM1.29m | 8:03PM1.34m | ||||||||||||||||
 | | | |  | |  | | | | | | |  |  | |  |  | | | | |
 | 6:58 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — |
 | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:38 | — |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 |
Feels °C | 4 | 3 | 3 | 4 | 5 | 6 | 4 | 4 | 6 | 6 | 5 | 4 | 5 | 5 | 3 | 2 | 5 | 5 | 5 | 5 | 2 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 11 | SSW 11 | SW 12 | SW 12 | SW 12 | SW 13 | WSW 13 | WSW 10 | WSW 8 | WSW 10 | WSW 10 | SW 10 |
| kJ | 800 | 709 | 597 | 524 | 459 | 402 | 359 | 367 | 287 | 845 | 923 | 1321 | 1742 | 1849 | 919 | 326 | 576 | 256 | 755 | 726 | 652 |
Swell 2 Height (m) Direction Period (s) | NW 6 | NW 6 | WSW 11 | NW 5 | NNW 5 | WSW 12 | SSW 15 | SSW 12 | SSW 11 | NW 10 | WNW 7 | NNW 12 | S 16 | S 16 | W 14 | SSW 16 | SW 14 | SW 10 | S 15 | S 15 | S 15 |
| kJ | 18 | 8 | 13 | 4 | 3 | 15 | 22 | 87 | 307 | 24 | 5 | 13 | 127 | 46 | 33 | 47 | 218 | 392 | 17 | 17 | 17 |
Swell 3 Height (m) Direction Period (s) | S 17 | S 17 | S 18 | S 18 | S 18 | SW 12 | NE 8 | SSW 16 | S 18 | S 17 | NW 12 | — | NNW 12 | NW 12 | — | NW 13 | WSW 14 | S 16 | S 12 | S 12 | S 12 |
| kJ | 6 | 6 | 7 | 6 | 24 | 5 | 2 | 24 | 24 | 6 | 5 | — | 13 | 5 | — | 6 | 19 | 19 | 11 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | E 3 | E 4 | E 4 | N 3 | NNW 2 | NNW 3 | NW 4 | NW 3 | WNW 3 | W 4 | W 4 | — | WSW 11 | WSW 11 | WSW 9 | — | — | — | SSE 4 |
| kJ | — | 2 | 8 | 13 | 7 | 1 | 1 | 4 | 5 | 5 | 7 | 6 | 9 | — | 1855 | 1567 | 587 | — | — | — | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 19 | 0 | 348 | 3 | 3 | 3 | 3 | 51 | 51 | 1477 | 51 | 51 | 51 | 1470 | 3 | 51 | 32 | 0 | 32 |
Best forecast wave conditions in Reykjanes Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Iceland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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