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Surf Forecasts:
Alnes Lighthouse surf forecast from 18 Aug 2026:
- Best quality surf: Friday 21 Aug, 8PM (local time) - 7.5ft (2.3m), 9s period, NNW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 11AM (local time) - 8ft (2.5m), 9s period, N swell with 1,032 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 5ft (1.6m), 9s period with N 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 (Aug 20) at 5AM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.7m and 11s. 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 2.5m 9s and forecast to arrive on Friday (Aug 21) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 5ft (1.6m) 9s |
| Best Surf | 8PM (Fri 21st Aug) | 7.5ft (2.3m) 9s |
| Most Powerful | 11AM (Fri 21st Aug) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Alnes Lighthouse over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at the upcoming stretch at Alnes Lighthouse.
Right off the bat, I gotta be straight with you – the next week and a half is a bit of a write-off. The wind is mostly cross or cross-on, and it’s coming in strong. We’ve got a lumpy, choppy mess, and the swell is lacking any real punch. For the first few days, from the 18th through the 24th, it’s all pretty grim. The combined energy is weak to moderate at best, with the highest reading on the 21st reaching 1048 (moderate wave energy), but that’s paired with a strong cross-on wind that’s gonna ruin any chance of a clean face. A 8.2ft swell on the 21st Friday morning sounds big, but with that wind, it’s only for the brave and the desperate. You’d need a death wish or a good dose of local knowledge.
There is a real gap here. From the 18th right through until the 25th, there’s nothing I’d recommend paddling out for. But then, on Thursday the 20th, we get a little window. Thursday morning is the only bright spot in this first week. The wind is glassy, dead calm from the west, and the swell is a clean 5.2ft from the north with a 9-second period. The combined energy is a solid 467 (moderate wave energy). The water is a bit colder than normal at 55.0°, about 2.3° off the average, so you’ll want a good spring suit. This is the one to aim for if you’re itching to get wet. The waves should be clean and lined up for a point break. It’s a point break, so it handles that north swell well. Just be aware it can get busy sometimes.
After that, it’s back to the wind battle. The 21st has a big 8.2ft swell but it’s cross-on and messy. The 22nd and 23rd are just poor. The 24th is completely flat. The 25th and 26th have some small, weak swell but the wind is still not cooperating. There’s a glassy moment on the morning of the 26th, but the swell is only 2.3ft with a long period of 10 seconds. That’s a very long-period groundswell, which can be a bit tricky at a point – it might break a little too straight of a line, but it’s clean. For a true standout, it’s only Thursday morning the 20th. The rest is a waiting game.
Short Range ForecastHeavy rain (total 28mm), heaviest during Thu night. Very mild (max 13°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (strong winds from the NE on Tue afternoon, calm by Thu morning). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri afternoon, min 11°C on Sun 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) | NNE 7 | NNE 7 | N 8 | N 8 | N 9 | N 9 | N 8 | NNW 8 | N 9 | NNW 9 | NNW 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 7 | NNE 7 | WNW 9 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 168 | 199 | 334 | 304 | 351 | 386 | 309 | 460 | 1032 | 860 | 660 | 439 | 377 | 182 | 138 | 115 | 39 | 64 | 26 | 54 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | glassy | cross-on | on | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 3:41PM1.44m | 3:58AM1.48m | 4:22PM1.36m | 4:46AM1.34m | 5:10PM1.28m | 5:47AM1.23m | 6:16PM1.23m | 7:09AM1.18m | 7:39PM1.23m | 8:37AM1.19m | 8:57PM1.29m | 9:42AM1.25m | 9:54PM1.39m | |||||||
Low Tide | 9:52PM0.37m | 10:21AM0.41m | 10:38PM0.48m | 11:06AM0.56m | 11:36PM0.59m | 12:08PM0.68m | 1:00AM0.66m | 1:37PM0.73m | 2:34AM0.65m | 2:59PM0.70m | 3:44AM0.57m | 3:56PM0.61m | 4:33AM0.46m | |||||||
 |  | | |  |  |  |  | | | | | |  |  | | | | | | |
 | — | — | 5:46 | — | — | 5:48 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 6:00 | — | — |
 | — | 9:34 | — | — | 9:30 | — | — | 9:27 | — | — | 9:23 | — | — | 9:21 | — | — | 9:17 | — | — | 9:14 |
mm | — | — | — | — | — | — | 2 | 24 | 2 | — | — | 1 | 3 | 2 | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 |
Feels °C | 3 | 3 | 7 | 8 | 8 | 11 | 11 | 8 | 12 | 9 | 13 | 12 | 8 | 8 | 9 | 8 | 8 | 9 | 8 | 10 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | N 8 | N 9 | N 9 | N 8 | W 10 | W 9 | W 9 | W 8 | — | W 9 | N 8 | WNW 6 | NW 6 | N 7 | W 9 | WNW 9 | WNW 8 |
| kJ | 25 | 12 | 5 | 304 | 351 | 386 | 309 | 31 | 16 | 6 | 5 | — | 6 | 182 | 15 | 9 | 39 | 24 | 26 | 54 |
Swell 2 Height (m) Direction Period (s) | W 6 | — | — | W 14 | W 11 | W 11 | W 10 | — | — | — | — | — | — | WNW 6 | W 8 | W 8 | W 9 | NW 5 | — | WNW 12 |
| kJ | 1 | — | — | 15 | 123 | 81 | 50 | — | — | — | — | — | — | 23 | 5 | 5 | 15 | 1 | — | 27 |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | W 9 | W 10 | W 10 | WNW 5 | — | — | NW 12 |
| kJ | — | — | — | 5 | — | — | — | — | — | — | — | — | — | 6 | 2 | 8 | 3 | — | — | 6 |
Wind waves Height (m) Direction Period (s) | NNE 7 | NNE 7 | N 8 | — | — | — | — | NNW 8 | N 9 | NNW 9 | NNW 8 | N 8 | N 8 | — | N 8 | N 8 | NNE 4 | NNE 7 | NNE 4 | NNE 5 |
| kJ | 168 | 199 | 334 | — | — | — | — | 460 | 1032 | 860 | 660 | 439 | 377 | — | 138 | 115 | 15 | 64 | 26 | 39 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 688 | 626 | 626 | 667 | 10 | 0 | 615 | 615 | 25 | 615 | 0 | 795 | 841 | 841 | 493 | 619 | 409 | 609 | 609 | 626 |
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.
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