Surf Forecasts:
Icelands surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 7AM (local time) - 8ft (2.4m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 8ft (2.5m), 17s period, SSW swell with 4,304 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 7AM (local time) - 8ft (2.4m), 18s 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 Wednesday (Aug 19) at 7AM. The primary swell is predicted to be 2.4m and 18s period with a secondary swell of 0.6m and 4s. 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 2.5m 17s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Sunday (Aug 23) at 10AM.
| Wave Type | Time (WIB) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 19th Aug) | 8ft (2.4m) 18s |
| Best Surf | 7AM (Wed 19th Aug) | 8ft (2.4m) 18s |
| Most Powerful | 4PM (Wed 19th Aug) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Icelands over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cooking for Icelands.
Alright, Icelands, we’re in for a blinder. This is a solid SSW groundswell train rolling in, and it’s gonna be hanging around for a good stretch. The water’s sitting at a warm 85°F, which is a little over half a degree above normal for this time of year – feels like a bath, just about average for the season, nothing crazy.
The first decent session kicks off Tuesday morning, 18th August. We’ve got a clean 6ft SSW swell with a 16-second period – that’s proper groundswell, lots of energy in the water (2237 combined energy). The wind is a light cross-off from the SSE, so the reef at Icelands is going to be looking smooth. The morning is the pick of Tuesday, the afternoon gets a bit cross-chop. This is a solid start, but it’s not the standout.
Wednesday morning, 19th August, is where the magic really starts to hit. The swell jumps to 8ft, still out of the SSW, and the period stretches to a very long 18 seconds. That’s a heap of water moving (3797 combined energy). Now, 8ft is getting into expert territory, and with that long period, it’s going to be a fairly heavy, powerful wave on the reef. The wind is a gentle cross-off from the SSE again, keeping it clean. This is the big one – for experienced surfers only, but it’s going to be pumping.
Thursday, 20th August, is another ripper. The morning has 8ft SSW swell with a 16-second period, and the wind is a light cross-off. By the afternoon, the breeze drops to a light 6 mph, still cross-off, and the swell holds at 8ft. Very clean conditions all day. The energy is still high (over 2700). This is a long, solid run of quality surf.
The pattern continues through Friday, 21st and Saturday, 22nd, with the swell easing slightly (6ft to 7ft) but still holding that long period and clean cross-off winds. The water is glassy in the mornings. By Sunday, 23rd, the swell drops a little more but it’s still a clean 5-6ft.
There’s a bit of a lull early in the new week, with smaller, choppier afternoons, but the mornings stay clean. The energy drops off toward the middle of the week.
Wednesday, 26th August, the swell drops to 4ft, and the energy is weak (639). It’s a bit of a down period, but the forecast is optimistic for the end of the month.
The real second standout comes in the last few days of the month and into September. Sunday, 30th August, the swell picks up again to 5ft, but now it’s coming from the SW with a 17-second period. The energy is back up (1352). The wind is light from the SE.
Monday, 31st August, is a gem. The swell is 5ft from the SW, and the afternoon wind goes glassy – a light 3 mph from the SSE. Glassy conditions on a reef with a 5ft SW groundswell (15-second period) is about as good as it gets. This is a wicked session for a solid intermediate or advanced surfer.
The first few days of September are also looking clean with 5-5ft SW swell and light winds, so the run of surf is set to continue well into the forecast period.
The standout: If you’re an expert, the Wednesday, 19th August morning is the one to circle – 8ft, 18-second period, clean cross-off wind. For the rest of us, the Monday, 31st August afternoon is a dream – 5ft of SW groundswell under glassy conditions at Icelands. That’s classic.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 28°C on Tue afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 16 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | S 13 | SSW 16 | S 14 |
Wave Graph | ||||||||||||||||||||
1429 | 4020 | 3790 | 4304 | 3786 | 3005 | 2716 | 2109 | 1654 | 1087 | 2460 | 2054 | 1682 | 1419 | 1172 | 947 | 1018 | 673 | 1728 | 965 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 10:17PM1.04m | 10:09AM0.77m | 11:00PM0.97m | 10:39AM0.65m | 11:54PM0.90m | 11:18AM0.55m | 1:13AM0.85m | 1:47PM0.49m | 2:41AM0.85m | 3:37PM0.51m | 3:51AM0.91m | 4:40PM0.58m | ||||||||
Low Tide | 4:12AM0.27m | 3:57PM0.16m | 4:58AM0.35m | 4:30PM0.22m | 5:56AM0.41m | 5:10PM0.28m | 7:37AM0.45m | 6:09PM0.34m | 11:10AM0.39m | 7:38PM0.37m | 11:24AM0.32m | 9:14PM0.35m | ||||||||
— | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | |
6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | |
mm | — | 7 | 2 | — | 1 | — | — | — | — | 1 | — | — | — | 3 | 1 | — | 1 | 2 | 4 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 30 | 31 | 31 | 30 | 31 | 32 | 31 | 30 | 30 | 28 | 29 | 29 | 30 | 29 | 30 | 28 | 30 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | S 14 | S 14 | S 13 | SSW 16 | S 14 |
1429 | 4020 | 3790 | 4304 | 3786 | 3005 | 2716 | 2109 | 1654 | 1087 | 2460 | 2054 | 1682 | 1419 | 1172 | 947 | 1018 | 673 | 1728 | 965 | |
Swell 2 Height (m) Direction Period (s) | SSW 19 | W 8 | WSW 10 | WNW 10 | — | WNW 10 | WNW 10 | SW 11 | S 19 | S 18 | WNW 10 | WNW 10 | WNW 9 | S 18 | S 20 | S 19 | S 18 | S 16 | SSW 20 | SSW 17 |
1234 | 5 | 10 | 10 | — | 10 | 10 | 29 | 592 | 1033 | 10 | 9 | 8 | 154 | 373 | 605 | 759 | 529 | 127 | 423 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | W 10 | — | — | — | — | — | S 22 | WNW 11 | SSE 4 | W 16 | W 16 | S 24 | SSW 22 | WNW 9 | S 16 | — | SSW 20 | NW 8 | W 8 |
7 | 2 | — | — | — | — | — | 37 | 11 | 13 | 5 | 5 | 11 | 157 | 8 | 193 | — | 129 | 3 | 1 | |
Wind waves Height (m) Direction Period (s) | SSE 9 | S 9 | SW 10 | SW 8 | SW 10 | SW 10 | SW 10 | — | SE 4 | — | — | — | SSE 4 | — | SSE 5 | — | — | SSE 6 | — | SSE 7 |
64 | 56 | 48 | 17 | 27 | 36 | 27 | — | 10 | — | — | — | 13 | — | 36 | — | — | 49 | — | 74 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 76 | 145 | 0 | 33 | 33 | 0 | 0 | 0 | 33 | 33 | 76 | 33 | 414 | 33 | 33 | 511 | 33 | 0 | 414 | 0 |
Best forecast wave conditions in Mentawi Islands | ||||||||||||||||||||
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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.











