
Surf Forecasts:
Alnes Lighthouse surf forecast from 12 Sep 2026:
- Best quality surf: Saturday 12 Sep, 11AM (local time) - 6ft (1.9m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 2PM (local time) - 10ft (3.0m), 14s period, W swell with 3,436 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 8AM (local time) - 6ft (1.8m), 10s period with W swell.
Best Forecast Surf Conditions for Alnes Lighthouse this week:
The surf forecast for Alnes Lighthouse over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 8AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Alnes Lighthouse in the next 16 days are 3.0m 14s and forecast to arrive on Friday (Sep 18) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 12th Sep) | 6ft (1.8m) 10s |
| Best Surf | 11AM (Sat 12th Sep) | 6ft (1.9m) 10s |
| Most Powerful | 2PM (Fri 18th Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Alnes Lighthouse over the next 16 days.
The Lowdown
Alright, groms and regulars, Rusty here with the lowdown on the next couple of weeks. We’ve got swell on the horizon, but you gotta pick your moments. The real gold is at the end of the first week and then again in the second week.
To start, Saturday the 12th at Alnes Lighthouse. The water is 55°, dead average for the season. We get a clean 6ft west swell in the morning with a light cross-off breeze. Wave energy sits at a solid 739. A nice way to ease into it.
Saturday afternoon gets a little chunkier, with 8ft from the west, but the wind picks up to 16 mph from the south-southeast. It’s still rideable, but the morning is cleaner.
Sunday the 13th is a skunk. The swell hits 10ft from the west-northwest, but the wind is a messy cross-shore at 22 mph. Lumpy, choppy, not worth the hassle.
Now, Monday the 14th, that’s the sweet spot of the first week. Morning brings a clean 6ft north-northwest swell with a light cross-off breeze. But the afternoon is the money. Glassy conditions with a whisper of an east-southeast breeze. The swell drops to 6ft, but with that glassy surface, it’s pure, clean fun. Tuesday the 15th keeps the fun going with a smaller 4-5ft southwest swell and light offshore winds.
Wednesday the 16th and Thursday the 17th are dead. Short period swell, onshore winds, weak wave energy. Don’t even think about it.
Get ready for Friday the 18th. Big day. We get a 10ft west groundswell with a very long 14-second period. The wind is a clean cross-off from the south-southwest. This is powerful, heavy water. The wave energy is a massive 3272. Only for experts. The morning session is the one.
The weekend of the 19th and 20th is blown out again. Rain and strong cross-shore winds.
But then, Tuesday the 22nd afternoon delivers another standout. A moderate offshore wind from the south-southeast at 16 mph. The swell is a serious 12ft from the west with a 13-second period. Clean, powerful, expert territory. Wave energy is off the charts at 3495.
The wind gets wild again until Thursday the 24th afternoon. That’s another excellent call with a 13ft west-northwest swell and a gentle offshore breeze from the southeast.
And the winner for the entire forecast is Friday the 25th morning. Massive 13ft swell from the northwest, a very long 12-second period, and a light cross-off breeze. The wave energy is a staggering 4131. It’s clean, it’s huge, and it’s only for the brave. Friday afternoon is also beautiful, with a 10ft swell and almost no wind.
The last weekend, the 26th and 27th, settles back down to clean, smaller waves. Sunday the 27th afternoon looks glassy again with a 6ft west swell.
Best calls of the window: Monday the 14th afternoon for a glassy, all-levels gem, and Friday the 25th morning for the biggest, cleanest swell of the run. Get out there.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Very mild (max 14°C on Mon night, min 10°C on Sun morning). Winds decreasing (strong winds from the SW on Sat night, calm by Mon afternoon). | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Tue night. Very mild (max 14°C on Tue afternoon, min 11°C on Tue night). Winds decreasing (near gales from the SW on Tue night, light winds from the SE by Thu afternoon). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | W 10 | W 13 | W 12 | WNW 12 | WNW 11 | WNW 10 | NNW 11 | NNW 11 | NNW 10 | WSW 9 | WSW 9 | WSW 10 | NNW 7 | NNW 7 | NNW 8 | N 8 | N 8 | WSW 9 | W 14 | W 14 | W 13 |
Wave Graph | |||||||||||||||||||||
738 | 2012 | 2626 | 2053 | 1645 | 810 | 814 | 698 | 274 | 206 | 329 | 455 | 334 | 249 | 330 | 190 | 130 | 308 | 3253 | 3313 | 1912 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross | cross-on | cross-off | glassy | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:42PM1.67m | 00:49AM1.83m | 1:16PM1.67m | 1:26AM1.78m | 1:49PM1.64m | 2:03AM1.69m | 2:22PM1.58m | 2:41AM1.58m | 2:56PM1.51m | 3:20AM1.45m | 3:33PM1.42m | 4:05AM1.32m | 4:18PM1.32m | ||||||||
Low Tide | 6:49PM0.09m | 7:16AM-0.05m | 7:25PM0.10m | 7:51AM0.04m | 8:01PM0.15m | 8:24AM0.18m | 8:36PM0.24m | 8:56AM0.33m | 9:13PM0.35m | 9:30AM0.49m | 9:55PM0.47m | 10:10AM0.62m | 10:49PM0.60m | ||||||||
6:50 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:01 | — | — | 7:03 | — | — | 7:07 | — | — | |
— | 8:10 | — | — | 8:07 | — | — | 8:05 | — | — | 8:00 | — | — | 7:58 | — | — | 7:54 | — | — | 7:52 | — | |
mm | — | — | 1 | 2 | — | — | — | — | 1 | 5 | 6 | 14 | 6 | 1 | — | — | — | 2 | — | — | — |
Temp °C | 12 | 13 | 13 | 11 | 12 | 11 | 11 | 13 | 14 | 13 | 14 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 13 | 12 |
Feels °C | 9 | 9 | 6 | 4 | 5 | 6 | 8 | 11 | 11 | 11 | 12 | 2 | 7 | 9 | 8 | 8 | 10 | 10 | 7 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 13 | — | — | WNW 11 | WNW 10 | NNW 11 | NNW 11 | WSW 9 | WSW 9 | NNW 9 | NNW 8 | W 10 | NNW 7 | NNW 8 | N 8 | N 8 | WSW 9 | W 14 | W 14 | W 13 |
738 | 2012 | — | — | 1645 | 810 | 814 | 698 | 257 | 206 | 64 | 22 | 188 | 249 | 330 | 190 | 130 | 308 | 3253 | 3313 | 1912 | |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | — | — | — | NW 14 | W 10 | W 9 | NNW 10 | NNW 10 | — | — | — | W 10 | W 10 | W 10 | W 10 | N 8 | NNE 8 | NNE 7 | NNE 7 |
1 | 1 | — | — | — | 200 | 228 | 175 | 274 | 96 | — | — | — | 153 | 121 | 121 | 72 | 57 | 19 | 11 | 10 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 5 | WNW 17 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 29 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | W 12 | WNW 12 | — | — | — | — | — | — | WSW 9 | WSW 10 | NNW 7 | — | — | — | — | — | — | — | — |
— | — | 2626 | 2053 | — | — | — | — | — | — | 329 | 455 | 334 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 82 | 615 | 656 | 656 | 595 | 0 | 0 | 0 | 0 | 0 | 615 | 58 | 677 | 655 | 0 | 25 | 1704 | 82 | 615 | 82 |
Best forecast wave conditions in South and West Norway | |||||||||||||||||||||
Best forecast wave conditions in Norway | |||||||||||||||||||||
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Information about the Alnes Lighthouse Surf forecast
The above surf forecast table for Alnes Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Alnes Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Alnes Lighthouse 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 (Alnes Lighthouse) 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 Alnes Lighthouse 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.
Are you planning a holiday in South and West Norway? If you are looking for accommodation near Alnes Lighthouse, camping, hotels and holiday cottages in South and West Norway, consider staying in Alesund which is 10 km (6 miles) away. Other places in and around South and West Norway where you can find information about places to rent, and car hire include Stranda which is 52 km (32 miles) away, Molde and Svelgen.










