Surf Forecasts:
Kodogawa surf forecast from 2 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 9PM (local time) - 18ft (5.5m), 17s period, ESE swell with cross-offshore winds.
- Most powerful swell: Friday 7 Aug, 12AM (local time) - 30ft (9.0m), 17s period, SE swell with 47,158 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 6AM (local time) - 4.5ft (1.4m), 16s period with ESE 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 Monday (Aug 03) at 6AM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 0.2m and 8s. 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 9.0m 17s and forecast to arrive on Friday (Aug 07) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Aug 03) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 3rd Aug) | 4.5ft (1.4m) 16s |
| Best Surf | 9PM (Wed 5th Aug) | 18ft (5.5m) 17s |
| Most Powerful | 12AM (Fri 7th Aug) | 30ft (9.0m) 17s |
Table - best surf conditions forecast for Kodogawa over the next 16 days.
The Lowdown
Alright folks, this is Rusty. Let's get into it.
We're looking at a solid stretch of swell coming in, but it's messy. The standout window is the first couple of days, with a huge pulse of energy that's too big for the average punter. The water temp is about average for this time of year.
The first real call is Kodogawa (beach/sandbar) on Monday, August 5th. The swell is building, 13ft from the ESE, with a very long 17-second period. The combined energy is already strong at (9736), and it's only going to get bigger. The wind is light cross-shore, so it's manageable, but remember this spot is a beach/sandbar setup, so that long-period groundswell might be a bit too straight for it. Best for the intermediate crew.
Tuesday, August 6th, is where things get serious. The morning session at Kodogawa sees a massive 21ft ESE swell, with an 18-second period. The energy is enormous (27261). The wind is still moderate cross-shore, which is a major positive for keeping it clean. But honestly, at this size and with this power, it's a monster. This is expert-only territory. The afternoon is even bigger, 23ft, but the wind freshens up, making it lumpy. The scores are high for the swell, but it's a beast.
The rest of the first week and into the second week is a write-off. The wind goes onshore and howling, turning everything into a blown-out mess. We've got a solid gap of poor conditions from Thursday, August 8th, all the way through to Tuesday, August 13th. The wind is relentless, gusting over 25 mph from the east, making it more of a kite session than a surf.
But hold on. Thursday, August 13th, things glass off. The morning is flat calm, glassy conditions, with a 4ft S swell at 11 seconds. The energy is weak (590), but it's clean. Not a standout, but a sign of hope.
The real sleeper comes on Monday, August 18th. The morning at Kodogawa is glassy, with a 7ft E swell. The period is short, at 7 seconds, so it's windswell, not much power (807). The wind is light and glassy, making it rideable and clean. For a region that's been hammered, this is a fun little window for a longboard or a twinny.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Tue afternoon. Warm (max 30°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 143mm), heaviest during Fri afternoon. Warm (max 29°C on Thu morning, min 27°C on Thu night). Mainly strong winds. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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) | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | ESE 18 | ESE 17 | ESE 17 | ESE 17 | SE 17 | SE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | ESE 10 | ESE 10 | ESE 10 | ESE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 950 | 1411 | 2915 | 3950 | 4902 | 5802 | 9624 | 13571 | 18368 | 24630 | 27588 | 47158 | 27442 | 11987 | 10024 | 5384 | 3699 | 2159 | 2228 | 2578 | 1597 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:11PM1.89m | 9:23AM1.75m | 9:41PM1.84m | 10:18AM1.63m | 10:16PM1.77m | 11:33AM1.52m | 11:02PM1.70m | 1:26PM1.49m | 00:10AM1.64m | 3:23PM1.58m | 1:43AM1.65m | 4:34PM1.73m | |||||||||
Low Tide | 2:53PM0.52m | 3:24AM0.66m | 3:26PM0.68m | 4:09AM0.63m | 4:05PM0.86m | 5:06AM0.61m | 4:56PM1.05m | 6:19AM0.59m | 6:19PM1.22m | 7:48AM0.53m | 8:27PM1.29m | 9:11AM0.41m | 9:57PM1.23m | ||||||||
 |  |  | | |  |  | |  |  | | | | | | | | | | | | |
 | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — |
mm | — | 1 | 6 | 3 | 6 | 5 | — | — | — | 1 | 5 | 22 | 14 | 15 | 27 | 15 | 16 | 28 | 19 | 12 | 17 |
Temp °C | 30 | 30 | 28 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 34 | 34 | 33 | 32 | 32 | 31 | 32 | 31 | 30 | 28 | 28 | 28 | 25 | 27 | 27 | 26 | 28 | 26 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | ESE 18 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | SE 16 | SSE 16 | SSE 16 | SSE 14 | SSE 14 | S 14 | S 13 | S 12 | S 12 |
| kJ | 950 | 1411 | 2915 | 3950 | 4902 | 5802 | 9624 | 13571 | 18368 | 24630 | 27588 | 33156 | 27442 | 11987 | 10024 | 5384 | 3699 | 2155 | 1245 | 883 | 615 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 7 | S 10 | — | — | E 9 | — | — | — | — | — | — | — | — | — | — | E 15 | — | — | — | ESE 13 |
| kJ | 1 | 4 | 8 | — | — | 450 | — | — | — | — | — | — | — | — | — | — | 17 | — | — | — | 129 |
Swell 3 Height (m) Direction Period (s) | S 8 | — | SE 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 15 |
| kJ | 4 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 21 |
Wind waves Height (m) Direction Period (s) | NNE 4 | ESE 7 | E 7 | E 8 | E 9 | — | — | — | — | — | — | SE 17 | SE 16 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 |
| kJ | 11 | 5 | 150 | 263 | 377 | — | — | — | — | — | — | 47158 | 27442 | 6259 | 4921 | 3104 | 2199 | 2159 | 2228 | 2578 | 1597 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 124 | 0 | 0 | 124 | 124 | 230 | 45 | 230 | 788 | 743 | 779 | 757 | 743 | 743 | 743 | 230 | 743 | 807 | 807 | 190 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kodogawa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest