Surf Forecasts:
Akabane Long Beach surf forecast from 17 Aug 2026:
- Best quality surf: Saturday 22 Aug, 6AM (local time) - 3.5ft (1.1m), 10s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 3AM (local time) - 3.5ft (1.1m), 10s period, SSW swell with 255 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 3AM (local time) - 1.5ft (0.4m), 10s period with SE swell.
Best Forecast Surf Conditions for Akabane Long Beach this week:
The surf forecast for Akabane Long Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Akabane Long Beach in the next 16 days are 1.1m 10s and forecast to arrive on Saturday (Aug 22) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 20th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 6AM (Sat 22nd Aug) | 3.5ft (1.1m) 10s |
| Most Powerful | 3AM (Sat 22nd Aug) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Akabane Long Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what’s coming our way for the next couple of weeks.
Right off the bat, we’ve got a flat spell. For the first few days, honestly, it’s a write-off. We’re looking at a stretch from Monday the 17th through to about Wednesday the 19th with nothing but weak, onshore-crumbled slop. The wind is blowing cross-on from the ESE at 15 to 25 km/h, and the swell is under 4 ft with shocking periods down to 5 seconds. There’s just no push to it. You’d be better off waxing your board and staying home.
We finally see a tiny glimmer on Thursday morning the 20th. Akabane Long Beach goes glassy, winds drop to zero. But look – it’s only 1 ft of swell. Period bumps up to 10 seconds, and the combined energy is only 75 – that’s barely a ripple. You could get a little knee-high slider if you’re desperate, but it’s not worth paddling out for. The water temp is sitting at 81°F, which is normal for this time of year.
Friday the 21st and Saturday the 22nd see a little more size come in – around 3 ft to 4 ft – but the wind stays a problem. It’s cross-on or onshore, and the conditions are just choppy and bumpy. The energy picks up to 320 on Saturday (moderate), but the quality isn’t there. It’s frustrating because you can see a bit of swell, but the wind ruins the party.
Now, the standout window. The morning of Tuesday the 25th of August is where it gets interesting. A solid 8 ft groundswell from the SSE, with a long period of 15 seconds, rolling in. The wind shifts light from the west, making it a clean, cross-off flow. Combine that with very high energy – 3465 – and you’ve got excellent, powerful waves. This spot is very consistent and exposed, and the optimum swell direction is SSE, so this is a direct hit. The difficulty is intermediate, so it’s not for beginners, but intermediate and up are in for a treat. Be aware, this is a beach break, and a long-period swell like this can make things a bit lined-up and straight, but the quality is undeniable. Crowds are often here, so expect company.
After that, from Wednesday the 26th onward, the swell stays chunky, but the wind turns messy again. We’re looking at 8 ft to 12 ft waves, but the cross-on winds make it choppy and hard to read. The energy is still strong, hitting over 3000 on Wednesday morning, but the onshore flow kills the chance for perfect waves. By the 27th and 28th, the size gets to 12 ft (only for experts), and then we see another massive spike coming.
Check out the end of the run: Monday the 1st of September morning. Glassy conditions again with light WSW wind, and a huge 20 ft SE groundswell with an 18-second period. The combined energy is astronomical at 20373. However, the file warns the swell is too big for this break. That’s massive, powerful, and dangerous – definitely only for the most experienced charger with a big-wave gun, and even then, you need to know what you’re doing. The Tuesday the 1st of September morning is also glassy with 15 ft, but again, it’s a warning. The size is beyond what this locale can handle comfortably.
Best bet on the whole forecast: Get on the Tuesday morning, the 25th of August at Akabane Long Beach. It’s the only day where the size, wind, and energy all line up for a proper session. After that, it’s a circus of big, messy, or oversized swell.
Stay tuned, and keep an eye on these long-range signals – they can shift.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 28°C on Fri afternoon, min 26°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | ESE 9 | ESE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | SE 10 | SE 10 | SE 10 | S 9 | S 9 | S 11 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 |
Wave Graph | |||||||||||||||||||||
169 | 86 | 134 | 76 | 84 | 72 | 43 | 40 | 25 | 25 | 28 | 103 | 101 | 184 | 250 | 209 | 205 | 159 | 113 | 110 | 108 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | glassy | on | on | glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on |
High Tide | 8:27PM1.81m | 9:05AM1.60m | 8:49PM1.76m | 9:55AM1.48m | 9:10PM1.70m | 11:07AM1.36m | 9:32PM1.62m | 2:25PM1.34m | 10:01PM1.53m | 4:16PM1.45m | 11:32PM1.44m | 4:33PM1.54m | 2:00AM1.44m | ||||||||
Low Tide | 2:16PM0.67m | 2:47AM0.62m | 2:43PM0.86m | 3:28AM0.66m | 3:07PM1.04m | 4:16AM0.71m | 3:28PM1.20m | 5:24AM0.75m | 3:40PM1.34m | 7:05AM0.75m | 8:11PM1.41m | 8:36AM0.66m | 9:47PM1.29m | ||||||||
5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | |
— | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:32 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 |
Temp °C | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 27 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 30 | 29 | 30 | 30 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | ESE 8 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | S 9 | S 9 | S 11 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 |
35 | 38 | 21 | 20 | 11 | 72 | 43 | 40 | 23 | 14 | 15 | 103 | 101 | 184 | 250 | 209 | 205 | 159 | 113 | 110 | 108 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | ESE 6 | ESE 8 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 9 | ESE 12 |
30 | 30 | 29 | 28 | 27 | 11 | 16 | 16 | 25 | 25 | 23 | 12 | 19 | 21 | 18 | 56 | 75 | 74 | 65 | 27 | 56 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 9 | — | SE 10 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | ESE 6 | SSE 10 | SSE 10 | SSE 10 | ESE 12 | E 9 |
— | — | — | 3 | — | 16 | 11 | 11 | 6 | 16 | 28 | 29 | 39 | 39 | 39 | 7 | 10 | 10 | 10 | 56 | 25 | |
Wind waves Height (m) Direction Period (s) | ESE 9 | ESE 5 | ESE 8 | ESE 8 | ESE 8 | — | — | — | — | — | — | — | — | — | — | — | S 2 | SW 3 | — | SSW 2 | — |
169 | 86 | 134 | 76 | 84 | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 198 | 198 | 198 | 92 | 240 | 92 | 92 | 240 | 91 | 0 | 263 | 91 | 0 | 158 | 91 | 91 | 303 | 91 | 91 | 303 | 91 |
Best forecast wave conditions in Shizuoka | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Akabane Long Beach Surf forecast
The above surf forecast table for Akabane Long Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Akabane Long Beach can be found by selecting the local surf guide option on the grey menu. Our Akabane Long Beach 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 (Akabane Long Beach) 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 Akabane Long Beach 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.
Akabane Long Beach is 10 km (6 miles) from the city of Tahara. If you plan a holiday in Shizuoka, look for hotels and other accommodation in Tahara. Tahara has rooms for a wide range of budgets as well as car hire and transport links.











