Surf Forecasts:
Kodogawa surf forecast from 29 Aug 2026:
- Best quality surf: Friday 4 Sep, 12AM (local time) - 6.5ft (2.0m), 9s period, SSE swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 6AM (local time) - 4.5ft (1.3m), 15s period, SE swell with 685 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 9AM (local time) - 2.5ft (0.8m), 7s period with SSE swell.
Best Forecast Surf Conditions for Kodogawa this week:
The surf forecast for Kodogawa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 30) at 9AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kodogawa in the next 16 days are 1.3m 15s and forecast to arrive on Sunday (Sep 06) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (Sep 05) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 30th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 12AM (Fri 4th Sep) | 6.5ft (2.0m) 9s |
| Most Powerful | 6AM (Sun 6th Sep) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Kodogawa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at the local stretch for the next couple of weeks.
Right off the bat, we’re looking at a pretty quiet start. The first few days bring only small, weak swell with a combined energy around 123 initially, dropping off fast. The water temp is sitting at 84°, which is about what you’d expect for this time of year. Sunday the 30th has a tiny 3ft SSE swell, but it’s glassy in the morning, so you might get a few crumbly little rollers if you’re desperate. After that, it gets real flat and the wind turns messy. Monday and Tuesday are a write-off – small, weak, and choppy. There’s a gap of poor surf lasting from Sunday afternoon all the way through Tuesday afternoon.
Things start to perk up mid-week. Wednesday morning the 2nd of September kicks up to 5ft from the SSE, but it’s still a bit rough with cross-onshore winds and a risk of storms. The energy climbs to 401, but it’s not clean enough to get excited about. Thursday the 3rd offers a better window with glassy conditions and a 5ft SSE swell, moderate energy at 301. Surfable, but ordinary. That’s about the best of the first week.
Then we hit a proper pulse. Sunday the 6th of September sees a big jump in energy – the combined energy hits 1121 by the morning, but the wind is a problem. By Sunday afternoon, the swell jumps to 10ft from the E with a massive 3053 energy reading. The wind is light cross-shore, but that’s a lot of juice for a beach/sandbar setup. It’s going to be a raw, powerful mess, probably more interesting for kite surfers than paddle surfers.
The real standout window is the morning of Monday the 7th of September. The swell eases a touch to 8ft from the ESE, but the wind turns cross-offshore and light. Clean conditions, 1468 energy. The period is 10 seconds. That’s proper groundswell, and for a spot like Kodogawa (beach/sandbar), the long period will make it wall up. It’s too big for beginners, but for the experienced crew, this is the pick of the entire forecast. It’s only one morning, so be on it.
The following few days stay chunky. Tuesday the 8th holds 8ft from the E with a 13-second period and 2394 energy, but the wind is cross-onshore, so it’s messy. Wednesday the 9th morning has a clean 6ft from the E with glassy conditions and 1397 energy – another solid session if you can get out.
Then we get the big one. Thursday the 10th of September morning. This is a monster. 16ft from the ESE with a 16-second period and a combined energy reading of 12006. That’s exceptional, but it’s also dangerous. The wind is light cross-offshore, so the wave faces will be clean. But 16ft is strictly for absolute experts. This is a heavy, long-period groundswell that will be breaking straight and fast on the beach. Point breaks and reefs would handle this better, but on a sandbar, it’s a big, shifting beast. If you’re not a pro, stay on the sand.
After that, the bottom drops out. From Friday the 11th through the 14th, the wind howls from the north at 15-34 mph, and the swell crashes down to under 3ft. The energy is weak, and the surf is poor. It’s a blank run to close out the outlook.
For the best on offer: Monday morning the 7th of September for a solid, clean 8ft groundswell at Kodogawa (beach/sandbar). The second standout is Thursday morning the 10th of September – but that’s a beast for experts only.
Rusty out.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue afternoon. Warm (max 30°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Wed morning. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | S 8 | SSE 8 | S 7 | ESE 9 | ESE 9 | SE 16 |
Wave Graph | |||||||||||||||||||||
69 | 54 | 51 | 26 | 22 | 32 | 157 | 178 | 213 | 302 | 302 | 307 | 219 | 202 | 560 | 334 | 202 | 150 | 84 | 80 | 348 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | glassy | cross-on | glassy | on | cross-on | glassy | cross-on | on | glassy | glassy | glassy | off | cross | cross-on | glassy | cross-on | cross-on | cross-off |
High Tide | 7:35PM2.03m | 7:45AM2.01m | 8:00PM2.01m | 8:26AM1.93m | 8:27PM1.95m | 9:13AM1.81m | 8:57PM1.88m | 10:08AM1.67m | 9:31PM1.78m | 11:27AM1.54m | 10:17PM1.67m | 1:39PM1.51m | 11:39PM1.58m | ||||||||
Low Tide | 1:22PM0.43m | 1:41AM0.54m | 1:53PM0.53m | 2:16AM0.49m | 2:25PM0.68m | 2:55AM0.47m | 2:59PM0.84m | 3:41AM0.48m | 3:38PM1.03m | 4:38AM0.53m | 4:29PM1.20m | 5:56AM0.57m | 6:15PM1.34m | ||||||||
5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | |
— | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | |
mm | — | 2 | 2 | — | — | — | 3 | 5 | 6 | 6 | 5 | 2 | — | 2 | — | 1 | — | 1 | 1 | 2 | 9 |
Temp °C | 30 | 29 | 27 | 29 | 29 | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 27 | 26 | 28 | 28 | 27 | 29 | 29 | 26 |
Feels °C | 34 | 34 | 32 | 32 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 32 | 33 | 32 | 33 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 8 | SSE 8 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | ESE 9 | S 7 | ESE 9 | ESE 9 | SE 16 |
69 | 54 | 51 | 26 | 22 | 32 | 98 | 178 | 213 | 302 | 302 | 307 | 219 | 202 | 454 | 232 | 113 | 100 | 84 | 80 | 310 | |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | S 8 | E 10 | E 10 | ESE 14 | ESE 13 | E 12 | E 12 | E 11 | E 11 | E 10 | E 10 | E 10 | E 9 | E 10 | ESE 9 | S 7 | S 7 | S 9 |
39 | 21 | 21 | 22 | 17 | 18 | 62 | 60 | 108 | 99 | 88 | 85 | 78 | 73 | 70 | 106 | 18 | 79 | 45 | 22 | 25 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | E 10 | SE 10 | SE 9 | SE 9 | E 11 | — | — | — | E 16 | E 15 | SE 10 | SE 10 | SE 10 | — | E 10 | E 10 | S 9 | E 13 |
15 | 15 | 16 | 17 | 15 | 14 | 13 | 9 | — | — | — | 5 | 4 | 14 | 15 | 15 | — | 18 | 8 | 14 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 3 | SSE 7 | SE 3 | SSE 8 | — | — | — | — | — | — | — | SSE 9 | S 8 | SSE 8 | S 7 | — | NNE 4 | E 7 |
— | — | — | 2 | 21 | 2 | 157 | — | — | — | — | — | — | — | 560 | 334 | 202 | 150 | — | 3 | 348 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 260 | 7 | 7 | 260 | 7 | 24 | 757 | 0 | 224 | 655 | 0 | 0 | 0 | 0 | 7 | 124 | 0 | 124 | 124 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Kodogawa Surf forecast
The above surf forecast table for Kodogawa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kodogawa can be found by selecting the local surf guide option on the grey menu. Our Kodogawa 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 (Kodogawa) 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 Kodogawa 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.
Kodogawa is 16 km (10 miles) from Nobeoka. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Nobeoka. Nobeoka has rooms for a wide range of budgets as well as car hire and transport links.











