Surf Forecasts:
Hakashita surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 12PM (local time) - 18ft (5.5m), 16s period, SE swell with cross-shore winds.
- Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 20ft (6.0m), 16s period, SE swell with 18,723 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9AM (local time) - 3.5ft (1.0m), 9s period with S 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 Friday (Aug 21) at 9AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.4m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Hakashita in the next 16 days are 6.0m 16s and forecast to arrive on Tuesday (Aug 25) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Fri 21st Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 12PM (Tue 25th Aug) | 18ft (5.5m) 16s |
| Most Powerful | 6PM (Tue 25th Aug) | 20ft (6.0m) 16s |
Table - best surf conditions forecast for Hakashita over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s cookin’.
The first few days are a total dud. Friday the 21st through Sunday the 23rd is just weak, tiny slop with crummy wind. No reason to get wet.
Monday the 24th is where it starts to shift. Hakashita (reef) gets a pulse of energy with a 3 ft to 8 ft SE swell rolling in. The period is a very long 17 to 20 seconds – that’s true groundswell. The combined wave energy is moderate to strong (1360 in the morning, up to 3604 by afternoon). The wind is light and mostly side or side-onshore, so it won’t be glassy, but there is real power. This is not a beginner wave at 8 ft.
The day to circle on the calendar is Tuesday the 25th. That’s the stand-out. Early morning, we have a clean 16 ft SE swell with a 17-second period, wind coming from the NNE at 9 mph as a clean cross-offshore breeze. The combined energy is a massive 12910. This is a full-on groundswell event. By the afternoon, it pushes to 20 ft SE with a 16-second period, but the wind picks up to 16 mph cross-shore. This is for experts only – if it’s over 8 ft, beginners should stay on the beach. Water temp is about 84°, which is average for the time of year.
Wednesday the 26th sees the leftover 18 ft swell getting torn apart by strong onshore wind and rain – a messy, lumpy nightmare. Thursday the 27th and Friday the 28th are still big (around 11 ft to 8 ft) but are onshore and choppy. Not good.
The weekend of the 29th and 30th drops off to tiny, weak 4 ft to 4 ft SE swell with short periods and messy wind. Not worth it. Then we hit a long, bleak run from the 31st of August through the 5th of September of mostly poor conditions with rain and onshore wind.
Looking way out to Thursday the 3rd of September and Friday the 4th of September, there’s another interesting blip. Thursday morning the 3rd shows a 4 ft easterly swell with a ridiculous 22-second period. That’s an incredibly long-period groundswell, which can be magic on a reef. The combined energy is moderate (2500). By afternoon, it builds to a 10 ft E swell with a 20-second period and a combined energy of 6787. Friday the 4th is still solid at 11 ft dropping to 8 ft, though the wind turns more side-onshore. This is a long way off, so keep an eye on it.
So, the one king wave in this whole outlook is Tuesday the 25th of August – biggest, cleanest swell of the bunch. The potential dark horse is Thursday the 3rd of September for that super-long period groundswell.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 29°C on Fri morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 78mm), heaviest during Tue night. Warm (max 29°C on Mon morning, min 25°C on Mon night). Winds increasing (light winds from the ENE on Mon morning, fresh winds from the ENE by Tue night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | S 9 | S 9 | S 9 | S 9 | S 8 | E 10 | E 10 | E 11 | E 10 | SE 20 | SE 17 | SE 17 | SE 17 | SE 16 | SE 14 | SE 12 | SE 12 | SE 11 | SE 10 | SSE 10 | SE 9 |
Wave Graph | |||||||||||||||||||||
168 | 127 | 99 | 71 | 69 | 49 | 52 | 82 | 94 | 563 | 3415 | 6568 | 12865 | 17342 | 12590 | 9110 | 7890 | 6565 | 2629 | 2042 | 1034 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross | on | glassy | cross | on | glassy | cross | cross-on | cross-off | cross-off | cross | cross-on | cross-on | on | on | on | on | on |
High Tide | 2:15PM1.29m | 11:04PM1.45m | 4:19PM1.40m | 1:12AM1.40m | 4:48PM1.51m | 2:52AM1.46m | 5:11PM1.61m | 3:51AM1.57m | 5:34PM1.70m | 4:35AM1.69m | 5:56PM1.78m | 5:13AM1.80m | 6:18PM1.85m | ||||||||
Low Tide | 4:48PM1.27m | 7:48AM0.71m | 8:57PM1.30m | 9:14AM0.61m | 10:09PM1.20m | 10:06AM0.49m | 10:43PM1.09m | 10:45AM0.37m | 11:11PM0.97m | 11:18AM0.27m | 11:37PM0.85m | 11:48AM0.21m | 00:05AM0.72m | ||||||||
5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | |
— | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 6 | 21 | 12 | 12 | 27 | 8 | 13 | 21 |
Temp °C | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 27 |
Feels °C | 33 | 33 | 31 | 33 | 33 | 32 | 33 | 33 | 31 | 32 | 31 | 31 | 29 | 30 | 28 | 27 | 27 | 26 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | E 10 | E 11 | E 10 | SE 13 | SE 17 | SE 17 | SE 17 | SE 16 | SE 14 | — | E 13 | SE 11 | E 12 | SE 10 | SE 9 |
168 | 127 | 99 | 71 | 69 | 49 | 52 | 82 | 94 | 342 | 3415 | 6568 | 12865 | 17342 | 12590 | — | 125 | 6565 | 72 | 1845 | 1034 | |
Swell 2 Height (m) Direction Period (s) | E 7 | ESE 11 | SE 11 | E 9 | E 9 | E 10 | S 8 | ESE 5 | SE 12 | SE 16 | SE 6 | ESE 6 | E 12 | E 15 | E 14 | — | — | E 18 | E 17 | E 12 | E 11 |
17 | 46 | 30 | 25 | 41 | 47 | 35 | 16 | 72 | 432 | 33 | 85 | 45 | 39 | 65 | — | — | 6 | 22 | 68 | 61 | |
Swell 3 Height (m) Direction Period (s) | SE 11 | E 7 | E 7 | ESE 11 | SE 11 | E 14 | ESE 6 | S 8 | SE 15 | SE 20 | E 12 | E 12 | — | — | — | — | — | E 18 | E 16 | E 16 | ENE 15 |
30 | 9 | 8 | 24 | 32 | 33 | 13 | 22 | 75 | 563 | 103 | 46 | — | — | — | — | — | 25 | 21 | 46 | 72 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ESE 5 | ESE 6 | ESE 6 | — | — | — | SE 12 | SE 12 | — | SE 10 | SSE 10 | — |
— | — | — | — | — | — | — | — | — | 23 | 53 | 129 | — | — | — | 9110 | 7890 | — | 2629 | 2042 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 98 | 0 | 14 | 278 | 0 | 11 | 278 | 0 | 26 | 98 | 0 | 26 | 323 | 188 | 669 | 671 | 669 | 188 | 491 | 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.











