
Surf Forecasts:
Alnes Lighthouse surf forecast from 15 Sep 2026:
- Best quality surf: Friday 18 Sep, 11AM (local time) - 7ft (2.1m), 15s period, W swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 11PM (local time) - 11ft (3.5m), 11s period, W swell with 2,641 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 2AM (local time) - 5.5ft (1.7m), 8s period with NNW 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 Thursday (Sep 17) at 2AM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.6m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Alnes Lighthouse in the next 16 days are 3.5m 11s and forecast to arrive on Sunday (Sep 20) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Sep 19) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 17th Sep) | 5.5ft (1.7m) 8s |
| Best Surf | 11AM (Fri 18th Sep) | 7ft (2.1m) 15s |
| Most Powerful | 11PM (Sun 20th Sep) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Alnes Lighthouse over the next 16 days.
The Lowdown
Right, grab a cuppa and settle in, let’s talk about what’s on offer for Alnes Lighthouse over the next couple of weeks. It’s a bit of a slow start, so don’t rush down there just yet. The first few days are pretty messy for us, with light rain and cross-shore winds making things marginal at best. The swell’s there, around 4ft from the west, but the combo doesn’t do us any favours. Expect small, weak, crumbly waves with the combined energy sitting low (274). The water is sitting at about 55°, which is bang on average for this time of year in this spot – no surprises there, so just your usual wetsuit.
We do see things start to clean up on Thursday morning, the 17th. The wind swings out of the east-northeast, giving us a nice cross-offshore flow, and the swell drops back a touch to 5ft from the NNW. It’s still not huge, but the surface goes clean. This is a decent little window for the intermediate crew, but it’s not the standout.
Now, Friday the 18th is where it gets interesting. The morning session is a real gem. We’ve got glassy conditions, dead calm with just a slight air moving, and a clean 7ft swell rolling in from the west. That’s a proper groundswell with a 15-second period, so plenty of punch and good shape – it’ll be hitting the point nicely. The combined wave energy is strong (1936), so there’s legitimate power behind it. Keep in mind, at 7ft, it’s getting a bit much for beginners, but for the intermediate and up, this is your window. Just be aware that the afternoon gets a little more onshore and lumpy.
Saturday the 19th morning is another strong contender. Offshore wind from the southeast, 6ft from the west with a 12-second period – that’s a clean, lined-up swell. The energy is still very solid (1007). This is a proper session for the experienced surfer who wants a smooth, powerful wave.
As we roll into the second week, the swell stays solid but the weather turns a bit sloppy. Sunday the 20th sees a big 10ft west-southwest swell but with strong cross-off winds that will keep it bumpy. That’s expert-only territory. There’s a potential for a window on Tuesday the 22nd morning with glassy conditions and a 5ft swell, but the period is short (7 seconds), so it’ll be a bit weak and fat.
The real anchor of this forecast, the one you absolutely don’t want to miss, lands on Saturday the 26th of September. The afternoon session is about as perfect as it gets for this spot. We’ve got zero wind – flat calm, glassy – and a solid 8ft west-northwest swell with a very long 16-second period. The combined energy is massive (4772). This is a big, powerful, clean groundswell with perfect surface conditions. This is for experienced surfers only, no question, as the size and power will be intimidating for anyone else. The point break handle this long period energy beautifully, so expect long, racy walls and plenty of juice. This is the one to circle on your calendar.
After that, the swell starts to drop fast into Monday and Tuesday the 28th and 29th, and the wind turns onshore again, so the run ends on a quiet note by the 30th.
So, to wrap up: the best of the best is Saturday afternoon the 26th at Alnes Lighthouse. The repeat stand-out is Friday morning the 18th. Get on it if you can.
Rusty
Short Range ForecastHeavy rain (total 44mm), heaviest during Tue night. Very mild (max 13°C on Tue afternoon, min 10°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed morning, calm by Wed night). | Days 5-7 Weather SummaryHeavy rain (total 27mm), heaviest during Sun morning. Very mild (max 13°C on Fri afternoon, min 10°C on Sun morning). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sat night). | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 10 | W 10 | WNW 9 | NNW 8 | NNW 8 | N 8 | W 10 | W 15 | W 14 | W 13 | W 12 | WSW 12 | WSW 8 | WSW 9 | W 10 | W 12 | W 12 | W 12 | W 11 |
Wave Graph | ||||||||||||||||||||
234 | 165 | 123 | 543 | 413 | 250 | 157 | 226 | 1881 | 1867 | 1755 | 986 | 1293 | 1093 | 1345 | 1782 | 2417 | 1277 | 887 | 459 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | glassy | cross-off | cross-off | cross-off | glassy | cross-on | cross-off | off | cross-off | cross | cross-off | cross | cross | cross-on | cross-on | glassy |
High Tide | 2:22PM1.58m | 2:41AM1.58m | 2:56PM1.51m | 3:20AM1.45m | 3:33PM1.42m | 4:05AM1.32m | 4:18PM1.32m | 5:03AM1.21m | 5:23PM1.24m | 6:29AM1.13m | 6:55PM1.21m | 8:08AM1.14m | 8:22PM1.27m | |||||||
Low Tide | 8:36PM0.24m | 8:56AM0.33m | 9:13PM0.35m | 9:30AM0.49m | 9:55PM0.47m | 10:10AM0.62m | 10:49PM0.60m | 11:07AM0.74m | 00:16AM0.68m | 12:45PM0.78m | 2:03AM0.66m | 2:23PM0.74m | 3:15AM0.56m | |||||||
— | — | 7:01 | — | — | 7:03 | — | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:15 | — | — | |
8:00 | — | — | 7:58 | — | — | 7:54 | — | — | 7:52 | — | — | 7:47 | — | — | 7:45 | — | — | 7:40 | — | |
mm | 6 | 21 | 9 | 5 | 2 | — | — | 1 | — | — | 1 | — | 3 | 10 | 7 | 2 | 4 | — | — | — |
Temp °C | 13 | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 11 |
Feels °C | 12 | 12 | 6 | 8 | 8 | 8 | 8 | 10 | 10 | 12 | 12 | 9 | 8 | 6 | 6 | 5 | 6 | 7 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | WNW 9 | NNW 8 | NNW 8 | N 8 | W 10 | W 15 | W 14 | W 13 | W 12 | N 8 | N 7 | N 8 | N 8 | N 7 | W 12 | W 12 | W 11 |
234 | 165 | 123 | 543 | 413 | 250 | 157 | 226 | 1881 | 1867 | 1755 | 986 | 20 | 4 | 5 | 5 | 4 | 1277 | 887 | 459 | |
Swell 2 Height (m) Direction Period (s) | N 9 | NNW 8 | — | — | W 10 | W 11 | W 10 | N 8 | N 8 | N 7 | N 7 | N 8 | — | — | — | — | — | NNW 8 | N 8 | N 7 |
40 | 22 | — | — | 68 | 114 | 98 | 92 | 55 | 53 | 39 | 21 | — | — | — | — | — | 155 | 118 | 44 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 6 | W 19 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 18 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | NNW 6 | N 6 | — | — | ENE 2 | — | — | — | — | SSE 3 | WSW 12 | WSW 8 | WSW 9 | W 10 | W 12 | — | — | — |
— | 1 | 112 | 66 | — | — | 1 | — | — | — | — | 4 | 1293 | 1093 | 1345 | 1782 | 2417 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 82 | 615 | 657 | 677 | 0 | 0 | 57 | 0 | 0 | 57 | 10 | 0 | 82 | 615 | 615 | 1072 | 1012 | 445 | 82 | 0 |
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.










