Surf Forecasts:
Hakashita surf forecast from 15 Aug 2026:
- Best quality surf: Friday 21 Aug, 3AM (local time) - 5.5ft (1.7m), 11s period, S swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 3AM (local time) - 5.5ft (1.7m), 11s period, S swell with 670 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 9PM (local time) - 3ft (0.9m), 10s period with E swell.
Best Forecast Surf Conditions for Hakashita this week:
The surf forecast for Hakashita over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 9PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.5m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hakashita in the next 16 days are 1.7m 11s and forecast to arrive on Friday (Aug 21) at 3AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 16th Aug) | 3ft (0.9m) 10s |
| Best Surf | 3AM (Fri 21st Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 3AM (Fri 21st Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Hakashita over the next 16 days.
The Lowdown
G’day, it’s Rusty here with a look at the waves ahead for Hakashita (Big Island). The water’s sittin’ at a warm 83°, which is pretty much spot on for this time of year, so no surprises there.
The next week and a half is gonna be a bit of a grind. We’ve got a couple of mornings with some clean but tiny surf—Monday the 17th morning is about as good as it gets, with 3ft of east swell and glassy conditions, but it’s weak, with combined energy around 234. That’s the pick of a pretty ordinary bunch. You’ll find the usual inconsistent nature of this reef spot on display, so you’ll be waiting for waves. The winds are mostly light and cross or onshore, so it’s not gonna be pretty. The swell bumps up a bit on Friday the 21st to 5ft with a longer 11-second period, but it’s messy and onshore, so I wouldn’t get too excited.
Then we get a lull, and things start to get really interesting around Monday the 24th. The energy starts to build, but it’s still not clean. Hold on, because Tuesday the 25th is where it’s at. The swell jumps to 8ft in the morning, building to 8ft in the afternoon, coming from the ESE with a long 16-second period. The combined energy is cranking at 3343, and the wind is dead calm and glassy. This is the standout, no doubt. It’s a solid, powerful groundswell, and even though it’s a reef, the long period will make it line up nicely. This one’s for experienced surfers only, way too much for beginners.
Wednesday the 26th stays big at 8ft from the SE, but a light cross-onshore messes it up a bit. Thursday the 27th morning is another gem: 10ft from the SE, 16-second period, and a clean cross-offshore wind. The energy is massive at 4814. This is the other real highlight, powerful and clean. But by Thursday afternoon it’s getting bigger and the wind swings cross, making it tricky. Then Friday the 28th turns into a full-blown mess with 31 mph onshore winds and 15ft of swell – that’s a hard pass. Saturday the 29th is just insane, with 31ft to 41ft of swell and strong winds. That’s not surfing, that’s a survival test, and the sheer size makes it a no-go for anyone. It’s more of a kite surfing spectacle than anything else.
After that, the swell backs down quickly. Sunday the 30th morning still has a solid 10ft from the ESE, but with a shorter 10-second period and a clean cross-offshore wind. It’s okay, but not the quality of earlier in the week. By Monday the 31st, the swell drops to a more manageable 8ft from the ESE with an 8-second period, but it’s still clean with a cross-offshore wind. The energy has dropped off, but it’s still surfable.
So, in short: the first week is all about waiting and picking the cleanest moments for small waves. The real deal is Tuesday the 25th and Thursday the 27th morning – those are the standouts, big, powerful, and clean. Just be an experienced surfer for those days.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 29°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 47mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | SSE 9 | SSE 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 |
Wave Graph | |||||||||||||||||||||
158 | 159 | 194 | 184 | 85 | 132 | 102 | 97 | 90 | 91 | 89 | 82 | 141 | 248 | 595 | 566 | 392 | 271 | 188 | 140 | 60 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | glassy | glassy | on | glassy | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | glassy | cross-on | on | on |
High Tide | 8:26PM1.88m | 8:43AM1.74m | 8:51PM1.81m | 9:27AM1.60m | 9:15PM1.73m | 10:18AM1.45m | 9:40PM1.64m | 11:33AM1.32m | 10:11PM1.55m | 2:15PM1.29m | 11:04PM1.45m | 4:19PM1.40m | 1:12AM1.40m | ||||||||
Low Tide | 2:14PM0.41m | 2:39AM0.49m | 2:43PM0.61m | 3:16AM0.51m | 3:10PM0.80m | 3:57AM0.57m | 3:35PM0.98m | 4:47AM0.65m | 4:01PM1.14m | 6:00AM0.71m | 4:48PM1.27m | 7:48AM0.71m | 8:57PM1.30m | ||||||||
5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | |
— | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | |
mm | — | — | — | — | 1 | — | — | — | 2 | — | — | 5 | 3 | 6 | 12 | 7 | 7 | 7 | 8 | 4 | 13 |
Temp °C | 29 | 29 | 25 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 28 | 28 | 26 | 28 | 28 | 26 | 27 | 28 | 26 |
Feels °C | 32 | 31 | 29 | 31 | 31 | 30 | 32 | 33 | 32 | 32 | 32 | 31 | 31 | 32 | 30 | 31 | 32 | 31 | 31 | 32 | 29 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | SSE 9 | SSE 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 |
158 | 159 | 194 | 184 | 85 | 132 | 102 | 97 | 90 | 91 | 89 | 82 | 141 | 248 | 595 | 566 | 392 | 271 | 188 | 140 | 60 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 8 | S 8 | S 8 | E 6 | S 8 | S 7 | S 7 | S 6 | SSE 5 | SSE 5 | SSE 6 | SE 10 | SE 10 | E 8 | SE 11 | SE 11 | E 9 | E 8 | E 8 | E 8 |
55 | 49 | 32 | 19 | 39 | 18 | 17 | 17 | 12 | 10 | 15 | 20 | 25 | 26 | 54 | 29 | 30 | 76 | 50 | 47 | 47 | |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 11 | S 8 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | — | — | SE 10 | SE 11 | E 7 | SE 11 | ESE 11 | ESE 11 | E 14 |
22 | 21 | 20 | 31 | 18 | 30 | 18 | 29 | 28 | 16 | 26 | 25 | — | — | 27 | 30 | 9 | 29 | 24 | 46 | 33 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 3 | — | — | — | — | — | SE 5 | — | E 8 | E 5 | — | E 7 | E 5 | — | — | — | S 6 |
— | — | — | — | 2 | — | — | — | — | — | 20 | — | 97 | 46 | — | 44 | 30 | — | — | — | 35 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 692 | 0 | 0 | 691 | 0 | 0 | 98 | 98 | 244 | 823 | 244 | 244 | 295 | 98 | 244 | 323 | 0 | 188 | 323 | 188 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Hakashita Surf forecast
The above surf forecast table for Hakashita provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Hakashita can be found by selecting the local surf guide option on the grey menu. Our Hakashita 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 (Hakashita) 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 Hakashita 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.
Hakashita is 14 km (9 miles) from Takanabe. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Takanabe. Takanabe has rooms for a wide range of budgets as well as car hire and transport links.











