Surf Forecasts:
Icelands surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 1AM (local time) - 6ft (1.9m), 14s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 7AM (local time) - 7ft (2.2m), 16s period, SSW swell with 2,398 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 6ft (1.9m), 14s period with SSW swell.
Best Forecast Surf Conditions for Icelands this week:
The surf forecast for Icelands over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 1AM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 0.4m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Icelands in the next 16 days are 2.2m 16s and forecast to arrive on Saturday (Aug 22) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Aug 23) at 7AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 23rd Aug) | 6ft (1.9m) 14s |
| Best Surf | 1AM (Sun 23rd Aug) | 6ft (1.9m) 14s |
| Most Powerful | 7AM (Sat 22nd Aug) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Icelands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up.
We’ve got a proper run of southerly groundswell lining up for Icelands, a reef break that’s exposed to the swell and handles a SSW direction beautifully. The water is sitting at 84.9°F with a slight positive anomaly of 0.9°F, so nothing unusual, just your typical warm summer bath. The first few days are a bit of a mixed bag – we’ve got some solid swell rolling in, but the wind and tide conditions are keeping things from really firing. Friday afternoon the 21st sees a 5.6ft SSW swell with a 15-second period, but that S wind at 12 mph is blowing cross-shore and putting a bit of a chop on it. The combined energy is strong (2252), but it’s not clean enough to get excited about.
Saturday morning the 22nd is a step up. The swell pushes to 7.2ft from the SSW with a 16-second period, and the wind swings SE at 9 mph, giving us a clean cross-off breeze. The wave energy is huge (2261), and the conditions are clean. That’s a solid window for more experienced surfers – 7.2ft is getting into the big stuff for most. That afternoon the wind shifts back to cross-shore, so the morning is the pick.
Sunday the 23rd holds onto solid 4.9ft to 5.6ft SSW/S swell with 14-second periods, and the wind stays cross-off both morning and afternoon. Clean conditions, moderate energy (1271 to 1942). It’s good, but not the standout.
Monday the 24th is more of the same – 4.9ft to 6.2ft, clean cross-off winds, but the quality is still just “marginal” on the reports. The energy is there (1508 to 1859), but it’s not quite clicking.
Now, here’s where it gets interesting. Tuesday morning the 25th is the first real standout. The swell drops slightly to 5.9ft from the SSW, 15-second period, but the wind is a light SSE at 6 mph, cross-off, and the conditions are clean. The combined energy is still solid at 1369, and the report calls it excellent for experienced surfers. This is the one to circle. The reef will handle that long period beautifully, and the light wind will keep it glassy.
The mid-week drops off a bit. Wednesday the 26th and Thursday the 27th see smaller swell (4.3ft to 3.9ft), but Thursday morning the 27th has a sneaky 3.0ft SSW swell with a *19-second* period. That’s a very long period groundswell – it’ll wrap in with real power for its size, and the energy reading is still a respectable 1222. The wind is light and cross-off, so it’ll be clean. That’s a gem for the reef.
Friday morning the 28th is another standout. 6.2ft from the SSW, 16-second period, clean cross-off wind, and the energy is pumping at 1853. Excellent conditions for experienced surfers. This is the second big call – get in the water.
The weekend of the 29th and 30th sees the swell backing off to 4.9ft and then 3.0ft, with lighter winds. It’s still surfable, but nothing special.
Monday the 31st is a beauty. The swell picks up again to 5.6ft from the SSW, 18-second period, and the wind goes glassy in the afternoon. The energy jumps to 2283. That afternoon session is going to be smooth, clean, and powerful. Mark it.
Tuesday the 1st of September is the best of the whole run. 7.2ft from the SW and SSW, 18-second period, and the wind is glassy calm all afternoon. The energy is massive – 3144 in the morning, 3032 in the afternoon. This is a serious, powerful groundswell. The reef will be firing, but at 7.2ft, this is expert territory only. If you’re a strong paddler, you’ll be smiling.
The first week of September sees the swell slowly drop off, but conditions remain mostly clean with light winds. Wednesday the 2nd holds 5.9ft, and by Friday the 4th we’re down to 3.9ft with glassy conditions. It’s a nice fade-out.
One thing to note: Icelands is a reef break, and with these long-period swells (15 to 19 seconds), the sets will be well-spaced and powerful. It’s not a beginner’s wave when it’s over 4.9ft, and from the 25th to the 1st, it’s consistently in the 5.9ft to 7.2ft range. This is a run for the crew who know what they’re doing.
Overall, the best of the best is Tuesday the 1st of September, with that glassy 7.2ft SW groundswell. The second pick is Friday morning the 28th of August, with 6.2ft and clean cross-off wind. The smaller, glassy days on the 31st
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 26°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 49mm), heaviest during Mon night. Warm (max 28°C on Mon afternoon, min 26°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | S 13 | S 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 19 | SSW 18 | SSW 16 |
Wave Graph | ||||||||||||||||||||
1208 | 2254 | 2247 | 1682 | 1419 | 892 | 1081 | 1018 | 771 | 1857 | 1328 | 1367 | 1158 | 586 | 545 | 479 | 425 | 578 | 1026 | 1626 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:13AM0.85m | 1:47PM0.49m | 2:41AM0.85m | 3:37PM0.51m | 3:51AM0.91m | 4:40PM0.58m | 4:43AM0.98m | 5:22PM0.67m | 5:23AM1.05m | 5:57PM0.77m | 5:58AM1.11m | 6:27PM0.86m | ||||||||
Low Tide | 5:10PM0.28m | 7:37AM0.45m | 6:09PM0.34m | 11:10AM0.39m | 7:38PM0.37m | 11:24AM0.32m | 9:14PM0.35m | 11:37AM0.26m | 10:21PM0.30m | 11:55AM0.19m | 11:10PM0.24m | 12:16PM0.14m | 11:51PM0.18m | |||||||
— | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | |
6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | |
mm | 3 | 3 | — | — | 7 | 1 | — | 11 | 6 | 1 | 17 | 7 | 4 | 5 | 2 | — | 12 | 1 | 1 | — |
Temp °C | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 30 | 31 | 31 | 31 | 29 | 30 | 31 | 29 | 29 | 28 | 29 | 29 | 29 | 30 | 28 | 30 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | SSW 16 | S 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 14 | SSW 18 | SSW 16 |
1208 | 2254 | 2247 | 1682 | 1419 | 892 | 1081 | 1018 | 661 | 1857 | 1328 | 1367 | 1158 | 586 | 545 | 479 | 425 | 561 | 1026 | 1626 | |
Swell 2 Height (m) Direction Period (s) | S 18 | WNW 10 | WNW 10 | W 9 | S 18 | S 20 | S 19 | S 18 | W 11 | W 10 | W 10 | W 9 | W 9 | SSE 7 | SSW 18 | S 8 | SSW 12 | SSW 19 | SW 14 | S 7 |
1033 | 10 | 9 | 6 | 99 | 373 | 738 | 759 | 2 | 2 | 2 | 2 | 2 | 57 | 63 | 55 | 187 | 578 | 463 | 39 | |
Swell 3 Height (m) Direction Period (s) | WNW 11 | W 16 | W 16 | S 24 | SSW 22 | W 9 | SSW 16 | — | SSW 19 | — | W 8 | — | — | W 8 | W 16 | SE 8 | SSE 8 | SSE 8 | SSE 8 | — |
11 | 5 | 5 | 11 | 156 | 6 | 50 | — | 74 | — | 1 | — | — | 1 | 5 | 23 | 87 | 83 | 60 | — | |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSE 4 | SSE 4 | — | — | SSE 6 | SSE 6 | — | S 13 | — | SE 7 | — | SSE 7 | — | SSE 8 | — | — | — | — | — |
13 | 20 | 12 | — | — | 77 | 73 | — | 771 | — | 28 | — | 60 | — | 89 | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 414 | 33 | 33 | 414 | 0 | 33 | 414 | 33 | 33 | 511 | 33 | 0 | 33 | 0 | 0 | 33 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Icelands Surf forecast
The above surf forecast table for Icelands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Icelands can be found by selecting the local surf guide option on the grey menu. Our Icelands 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 (Icelands) 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 Icelands 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.











