Surf Forecasts:
Akabane Long Beach surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 20 Aug, 6AM (local time) - 3.5ft (1.1m), 9s period, S swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 3AM (local time) - 5ft (1.5m), 10s period, ESE swell with 469 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 6AM (local time) - 3.5ft (1.1m), 9s period with S 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 6AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.4m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Akabane Long Beach in the next 16 days are 1.5m 10s and forecast to arrive on Monday (Aug 17) 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+) | 6AM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
| Best Surf | 6AM (Thu 20th Aug) | 3.5ft (1.1m) 9s |
| Most Powerful | 3AM (Mon 17th Aug) | 5ft (1.5m) 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 look at what Akabane Long Beach has in store for us over the next couple of weeks. It's a bit of a slow grind for a while, but there's a serious payoff coming if you can be patient.
Right now, we're looking at a pretty grim run. For the first week, from Thursday the 13th right through to Wednesday the 20th, the conditions are just not cooperating. We've got a lot of onshore and cross-onshore wind, and the wave quality is pretty poor. The swell energy is weak to moderate for most of this time, with readings like 211 (moderate energy) popping up on Thursday morning, but it's all wind-affected and choppy. You'll see small waves around 3 ft to 4 ft, but it's not the kind of surf you want to paddle out into unless you're desperate. That's a solid week of nothing special.
The water temp is sitting at 82°, which is bang on average for this time of year, so no surprises there in terms of needing a spring suit.
Finally, things start to turn around on Thursday the 20th. Thursday morning we get a real surprise – glassy conditions with a light NNW breeze. The swell picks up to 4 ft from the S, with a period of 8 seconds and moderate energy (212). It's not going to be world-class, but after a week of rubbish, a clean, glassy wave is a welcome sight. This would be your best bet for a quick surf before the wind swings around again in the afternoon.
We then have a bit of a quiet spell until the real standout event arrives. On Saturday the 22nd, the afternoon session looks promising again – glassy conditions with a 3 ft SSW swell and a 10-second period, energy at 214. Nice and clean.
But the real gold is on Sunday the 23rd, Monday the 24th, and Tuesday the 25th. This is the big one. Sunday morning the 23rd, we’ve got glassy conditions with a solid 5 ft swell from the SSE, a very long period of 15 seconds, and a whopping combined energy of 1136 – that’s powerful, strong energy. This is excellent for experienced surfers. The long period will make for some proper groundswell lines, so the reef and river setups would handle it beautifully, but at a beach break it might close out a bit.
Monday the 24th looks even bigger. Morning is glassy again with a 8 ft SSE swell, a 15-second period, and 2588 energy. This is getting into expert-only territory. The afternoon holds 8 ft with a 16-second period and 3296 energy – massive. By Tuesday the 25th, it's predicted to be 10 ft from the SE, with 14-second periods and 3142 energy, but the forecasts are calling it too big for this break (wind and tide favorable, but the swell is predicted to be too big for this break). That's a bit of a caveat – at that size, Akabane might be maxed out and dangerous.
So, for the standouts: Sunday morning, August 23rd and Monday morning, August 24th. These are your windows. Glassy offshore winds, powerful groundswell, and serious size. Sunday is the sweet spot for advanced surfers, while Monday is pure big-wave territory. Just be aware that with this much energy, Akabane Long Beach can get a bit of a crowd, as we know it can get "often" busy.
After that, the swell drops back down through the 26th and 27th, and we're back to poor conditions with nothing worth chasing.
That's the long and short of it for Akabane. A long wait, but a couple of really special days on the horizon.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Thu afternoon. Warm (max 28°C on Fri morning, min 26°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sun morning. Warm (max 27°C on Tue morning, min 25°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | SSW 10 | SSW 9 | E 11 | E 10 | ESE 10 | E 10 | E 10 | ESE 6 | ESE 10 | ESE 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 9 | E 9 | E 9 | SE 10 | SE 10 | S 9 |
Wave Graph | |||||||||||||||||||||
125 | 115 | 110 | 133 | 177 | 100 | 245 | 104 | 351 | 318 | 313 | 451 | 450 | 318 | 161 | 63 | 40 | 23 | 16 | 36 | 175 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:41PM1.88m | 6:09AM1.89m | 7:10PM1.88m | 6:53AM1.86m | 7:38PM1.87m | 7:37AM1.80m | 8:03PM1.84m | 8:20AM1.71m | 8:27PM1.81m | 9:05AM1.60m | 8:49PM1.76m | 9:55AM1.48m | 9:10PM1.70m | ||||||||
Low Tide | 12:03PM0.10m | 00:21AM0.80m | 12:41PM0.18m | 00:57AM0.70m | 1:15PM0.31m | 1:33AM0.64m | 1:47PM0.48m | 2:10AM0.61m | 2:16PM0.67m | 2:47AM0.62m | 2:43PM0.86m | 3:28AM0.66m | 3:07PM1.04m | ||||||||
5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | |
— | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | |
mm | 3 | 4 | 2 | — | — | 5 | 3 | 1 | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 28 | 28 | 28 |
Feels °C | 28 | 27 | 29 | 30 | 29 | 28 | 28 | 27 | 26 | 28 | 27 | 28 | 27 | 26 | 27 | 28 | 28 | 30 | 31 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 9 | SSW 9 | E 10 | ESE 10 | E 10 | SSW 10 | E 10 | SSW 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 9 | E 9 | SSW 8 | SE 5 | SE 10 | S 9 |
125 | 115 | 86 | 133 | 177 | 100 | 136 | 92 | 84 | 318 | 269 | 451 | 450 | 318 | 161 | 63 | 40 | 20 | 7 | 36 | 175 | |
Swell 2 Height (m) Direction Period (s) | S 5 | E 9 | E 11 | SSW 9 | SSW 9 | SSW 9 | SE 11 | SSW 10 | SSE 12 | SSW 9 | SSW 9 | S 9 | S 8 | S 8 | SSW 8 | SSW 8 | S 8 | E 9 | SE 10 | SE 5 | SE 10 |
13 | 64 | 110 | 86 | 82 | 59 | 29 | 98 | 13 | 84 | 58 | 56 | 50 | 34 | 21 | 26 | 32 | 23 | 16 | 6 | 24 | |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 12 | E 5 | ESE 4 | SSE 11 | S 11 | SSE 8 | SE 10 | SE 10 | SE 12 | SSE 11 | — | SSE 11 | SSE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SSW 8 | SSW 8 | SW 9 |
14 | 13 | 17 | 3 | 12 | 38 | 13 | 28 | 4 | 34 | 25 | — | 23 | 12 | 29 | 28 | 27 | 16 | 12 | 12 | 3 | |
Wind waves Height (m) Direction Period (s) | ESE 5 | ESE 5 | — | E 4 | ESE 5 | ESE 5 | E 10 | ESE 6 | ESE 10 | E 8 | E 10 | — | — | — | — | — | — | — | — | — | SW 3 |
59 | 42 | — | 8 | 26 | 32 | 245 | 104 | 351 | 228 | 313 | — | — | — | — | — | — | — | — | — | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 92 | 237 | 92 | 92 | 244 | 191 | 178 | 222 | 228 | 244 | 178 | 178 | 92 | 198 | 92 | 92 | 301 | 92 | 92 | 1256 | 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.











