
Surf Forecasts:
Kodogawa surf forecast from 18 Jul 2026:
- Most powerful swell: Monday 20 Jul, 3AM (local time) - 2ft (0.6m), 10s period, E swell with 66 kJ wave energy.
Best Forecast Surf Conditions for Kodogawa this week:
The most powerful waves expected at Kodogawa in the next 16 days are 0.6m 10s and forecast to arrive on Monday (Jul 20) at 3AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 3AM (Mon 20th Jul) | 2ft (0.6m) 10s |
Table - best surf conditions forecast for Kodogawa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on the table for the next couple of weeks.
Honestly, the first week is a tough one. We’re looking at a whole lot of nothing from now until Sunday the 27th of July. The long-range models are showing a pulse of energy arriving around the 28th, but for the next nine days, we’ve got tiny, weak swells and poor conditions. The good news is, because the surf is so flat, it’s a good time to get the gear sorted and wait.
The first real hope pops up on Monday morning, the 27th of July. It’s still small, but there’s a bit of a bump with a combined energy of 181, and it’s glassy. It’s a start, but nothing to write home about. The real story begins on Tuesday the 28th. A new swell fills in from the SE, pushing 6 ft with a solid 15-second period. The combined energy jumps to 1532, which is significant. The wind is cross-shore, but it’s light, so it’s rideable. For the experienced crew, this is where it gets interesting.
The standout, hands down, is Wednesday the 29th of July at Kodogawa (beach/sandbar). This is the one we’ve been waiting for. The morning shows an 8 ft SE groundswell with a 15 second period and a massive combined energy of 3178. The wind is a clean cross-offshore from the NNE. That’s a heavy setup. The afternoon looks even better for the experienced surfer, with the same 8 ft swell, offshores from the N, and a combined energy of 2560. This is big, powerful, and clean. But listen, at 8 ft, this is expert territory. The beach break setup might make it a bit walled up with that long period, but for the guys who know what they’re doing, it’s going to be firing. The water temperature is a very warm 82°, which is about normal for this time of year.
After that pulse, the week of the 30th of July settles down but stays fun. Thursday the 30th has a 5 ft swell from the SE with clean offshore winds (WNW) in the morning, and the energy is a moderate 889. Friday the 31st drops a bit more, with 4 ft from the E, but still clean cross-offshore winds. It’s a nice run of cleaner, smaller days after the big Wednesday session.
The second week, from the 1st of August onward, looks messy. The wind cranks up, blowing fresh and onshore, making the quality drop. There’s a bump on Monday the 3rd of August with a 6 ft SE swell, but the wind is cross-onshore, so it’s not going to be clean. This setup, with that wind and swell, honestly looks more interesting for kite surfing than a paddle session.
So, to sum it up: the first nine days are a write-off. Lock in Wednesday the 29th of July as the best day on offer. Big, powerful, and clean for the experts. The days following that are your best bet for a more manageable, fun wave.
Rusty, signing off.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed afternoon. Warm (max 30°C on Fri morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 9 | E 9 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | ESE 10 | E 10 | E 10 | E 10 | ESE 18 | ESE 18 | ESE 17 | SE 16 | SE 16 | SE 16 |
Wave Graph | |||||||||||||||||||||
39 | 41 | 65 | 44 | 41 | 60 | 40 | 24 | 35 | 53 | 52 | 34 | 31 | 32 | 17 | 31 | 31 | 28 | 41 | 41 | 39 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | glassy | cross | on | glassy | glassy | on | off | glassy | on | glassy | glassy | on | glassy |
High Tide | 9:20AM1.74m | 9:58PM1.81m | 10:13AM1.60m | 10:29PM1.74m | 11:14AM1.46m | 11:02PM1.67m | 12:37PM1.37m | 11:42PM1.60m | 2:30PM1.37m | 00:37AM1.55m | 4:03PM1.45m | 1:52AM1.53m | 4:59PM1.57m | ||||||||
Low Tide | 3:39PM0.53m | 4:16AM0.75m | 4:14PM0.72m | 5:07AM0.74m | 4:51PM0.91m | 6:06AM0.74m | 5:36PM1.07m | 7:17AM0.72m | 6:51PM1.20m | 8:32AM0.67m | 8:40PM1.26m | 9:37AM0.59m | 10:01PM1.23m | ||||||||
5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | |
— | 7:20 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | 1 | — | 1 | 1 | — | — | 2 | — | — | 3 | — | — | 2 | — | — | 2 | — | — | 1 | — |
Temp °C | 30 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 30 | 30 | 28 | 30 | 30 | 28 |
Feels °C | 35 | 34 | 34 | 34 | 35 | 33 | 33 | 35 | 33 | 33 | 34 | 33 | 33 | 34 | 33 | 34 | 35 | 33 | 34 | 34 | 34 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 11 | E 10 | E 10 | ESE 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SE 11 | SE 11 | SE 10 |
39 | 41 | 65 | 44 | 41 | 60 | 40 | 24 | 35 | 53 | 52 | 34 | 31 | 32 | 17 | 17 | 17 | 16 | 30 | 29 | 35 | |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | S 4 | SE 9 | SSE 9 | SSE 8 | ESE 11 | ESE 11 | E 8 | SE 8 | SE 8 | SE 7 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 9 | SE 11 | SE 16 | SE 16 | SE 16 |
10 | 10 | 3 | 13 | 8 | 7 | 12 | 22 | 12 | 2 | 2 | 2 | 4 | 15 | 10 | 15 | 13 | 18 | 41 | 41 | 39 | |
Swell 3 Height (m) Direction Period (s) | S 7 | ESE 12 | SE 9 | S 4 | ESE 12 | S 7 | SSE 8 | SSE 8 | SE 8 | — | S 8 | S 8 | S 7 | SE 19 | SE 19 | ESE 18 | ESE 18 | ESE 17 | E 9 | E 9 | E 9 |
4 | 14 | 13 | 1 | 13 | 1 | 7 | 7 | 3 | — | 1 | 1 | 1 | 15 | 14 | 31 | 31 | 28 | 15 | 15 | 6 | |
Wind waves Height (m) Direction Period (s) | — | ESE 2 | SSW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | 1 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 260 | 7 | 7 | 260 | 7 | 7 | 654 | 7 | 37 | 94 | 11 | 11 | 654 | 7 | 7 | 45 | 7 | 7 | 45 | 7 |
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.










