Surf Forecasts:
Kodogawa surf forecast from 26 Aug 2026:
- Best quality surf: Friday 28 Aug, 3AM (local time) - 4.5ft (1.3m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 6PM (local time) - 8ft (2.5m), 9s period, SE swell with 1,037 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 3AM (local time) - 4.5ft (1.3m), 8s 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 Friday (Aug 28) at 3AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kodogawa in the next 16 days are 2.5m 9s and forecast to arrive on Tuesday (Sep 01) at 6PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 28th Aug) | 4.5ft (1.3m) 8s |
| Best Surf | 3AM (Fri 28th Aug) | 4.5ft (1.3m) 8s |
| Most Powerful | 6PM (Tue 1st Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Kodogawa over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the lowdown on your local spot, Kodogawa.
Honestly, for the next week or so, it’s a bit of a bummer. We’re looking at a long stretch of poor surf from now through the first week of September. The combined energy is weak to moderate (1001), but the wind is all wrong, blowing cross-on, and the swell is short-period junk. The water is a warm 29°, which is pretty standard for this time of year.
The first real chance to get wet comes on Thursday, September 4th. The morning is looking clean with a light cross-offshore breeze from the NNW and a solid 10ft swell from the ESE. The energy is strong (1655), and the waves should have some real power. That afternoon stays clean too, with 8ft swell. This is a standout window for the experienced crew.
Then Saturday, September 5th morning is another highlight. We’re looking at another 10ft swell from the SSE, with clean conditions thanks to a light cross-offshore breeze from the north. The energy is pumping (1504). This is a proper session for those who know what they’re doing.
After that, it drops off again. The swell fades and the wind gets messy. There’s a quiet period where the energy is low, but nothing worth paddling out for.
Now, for the big one. Looking way out to Thursday, September 10th, the forecast is absolutely nuts. We’re talking a 28ft swell from the SE with a very long period of 15 seconds. The combined energy is off the charts (55725). This is a massive, powerful groundswell. But the wind is a moderate cross-onshore, making it choppy, and the forecast suggests this might be too big for this break. Only the absolute top-tier experts should even think about it, and even then, it’s a long shot. The earlier part of that day has an 12ft swell with glassy conditions, which is a much more manageable option for the experienced surfer.
For the most consistent, day-to-day surfer, the best bet is the clean windows on September 4th and 5th. The rest of the period is mostly a washout, but those two mornings are the real deal. Keep an eye on the long-range stuff for September 9th and 10th, but treat it as a promising, high-risk gamble for now.
Stay frothy.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu morning. Warm (max 30°C on Fri morning, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 83mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 24°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the ESE by Tue night). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | E 12 | SSE 7 | SSE 7 | SSE 7 | E 11 | SSE 11 | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 547 | 352 | 251 | 179 | 172 | 111 | 75 | 71 | 86 | 51 | 38 | 79 | 277 | 333 | 496 | 931 | 744 | 901 | 924 | 891 | 931 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | cross-off | glassy | on | glassy | cross | cross-on | cross-on | cross-on | on | on | on | on | on |
High Tide | 6:26PM1.95m | 5:54AM1.98m | 6:48PM2.00m | 6:30AM2.03m | 7:11PM2.03m | 7:06AM2.04m | 7:35PM2.03m | 7:45AM2.01m | 8:00PM2.01m | 8:26AM1.93m | 8:27PM1.95m | 9:13AM1.81m | 8:57PM1.88m | ||||||||
Low Tide | 11:55AM0.36m | 00:09AM0.83m | 12:24PM0.34m | 00:38AM0.72m | 12:53PM0.37m | 1:08AM0.62m | 1:22PM0.43m | 1:41AM0.54m | 1:53PM0.53m | 2:16AM0.49m | 2:25PM0.68m | 2:55AM0.47m | 2:59PM0.84m | ||||||||
 |  |  | | |  |  | | | | | | |  | | | | | | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — |
 | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | 2 | — | — | — | 1 | 3 | — | — | 1 | — | — | — | — | 1 | 21 | 14 | 16 | 31 | 16 | 11 | 21 |
Temp °C | 29 | 29 | 27 | 30 | 29 | 27 | 29 | 30 | 27 | 29 | 29 | 26 | 28 | 29 | 27 | 27 | 27 | 27 | 27 | 27 | 28 |
Feels °C | 32 | 32 | 31 | 33 | 32 | 31 | 32 | 33 | 32 | 33 | 32 | 30 | 30 | 32 | 30 | 30 | 30 | 30 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | ESE 11 | SSE 7 | SSE 7 | E 12 | SSE 7 | SSE 7 | SSE 7 | SSE 11 | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | 402 | 352 | 251 | 179 | 37 | 111 | 69 | 44 | 86 | 51 | 38 | 79 | 277 | 333 | 496 | 734 | 744 | 901 | 924 | 891 | 931 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 11 | ESE 11 | E 13 | E 13 | E 12 | SE 10 | ESE 11 | E 11 | E 11 | SSE 7 | E 11 | E 10 | E 11 | E 10 | E 13 | ESE 12 | E 11 | E 11 | E 11 |
| kJ | 47 | 46 | 43 | 38 | 31 | 84 | 75 | 14 | 43 | 21 | 37 | 38 | 20 | 19 | 9 | 8 | 12 | 49 | 65 | 89 | 85 |
Swell 3 Height (m) Direction Period (s) | E 16 | E 16 | E 15 | E 13 | SE 15 | E 15 | SE 9 | SE 13 | SE 9 | SE 9 | SE 10 | E 11 | SSW 9 | SSW 9 | — | E 13 | E 10 | E 12 | E 11 | — | — |
| kJ | 5 | 5 | 17 | 14 | 8 | 4 | 13 | 7 | 3 | 13 | 16 | 20 | 16 | 7 | — | 14 | 7 | 72 | 92 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 8 | — | — | — | SSE 7 | — | — | SSE 7 | — | — | — | — | — | — | — | SE 9 | — | — | SE 9 | — | SE 8 |
| kJ | 547 | — | — | — | 172 | — | — | 71 | — | — | — | — | — | — | — | 931 | — | — | 764 | — | 624 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 260 | 260 | 67 | 75 | 259 | 67 | 0 | 260 | 0 | 7 | 124 | 0 | 124 | 124 | 190 | 652 | 655 | 757 | 806 | 865 | 190 |
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.
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