Surf Forecasts:
Asakawa surf forecast from 16 Jul 2026:
- Most powerful swell: Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period, SE swell with 50 kJ wave energy.
Best Forecast Surf Conditions for Asakawa this week:
The most powerful waves expected at Asakawa in the next 16 days are 0.3m 18s and forecast to arrive on Friday (Jul 24) at 12AM. 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
Table - best surf conditions forecast for Asakawa over the next 16 days.
The Lowdown
Alright, let’s have a look at your local stretch.
Gotta be straight with you – the next week and a half is a bit of a desert. We’re looking at a long dry spell here at Asakawa. From now through most of the month, it’s just flat to tiny. Small, weak slop from the ESE and SE, barely enough to get a wobbly ride. The winds are messy too, often cross-on or onshore, and the energy is weak – hitting values like 48 (km/h) so barely a whisper. The water temp is about normal for this time of year, nothing to write home about.
We don’t see anything worth paddling out for until Saturday, July 25th. That morning, we finally get a glimpse of life. The swell bumps up to 1 ft from the SE, period 16 seconds – that’s some proper long-period groundswell energy. The wind goes glassy, light easterly. The combined energy jumps to 152 (km/h), which is finally moderate. It’s still small, but those long lines might wrap around the point a bit. It’s an inconsistent spot, so don’t expect a party, but if you’re patient, you might get a couple of clean ones. Crowds are possible here sometimes.
But the real standout – the one you’ve been waiting for – is Sunday, July 26th. The swell pumps up to 5 ft from the SE, and the period stays at a solid 14 seconds. The combined energy shoots up to 956 (km/h) – that’s strong wave energy. The wind is light and cross-on, but it’s still pretty clean. This is a point break, and that long-period SE groundswell is exactly what it wants. It’s going to be the best of the whole forecast. Monday the 27th stays big and messy, with onshore winds, so that Sunday window is your ticket.
Then Tuesday, July 28th gets huge – like 13 ft to 15 ft from the ESE, period 16 seconds, combined energy over 7000 (km/h). That’s massive, and it’s coming with onshore wind. That’s expert territory and looks more like a kite surfing day than a paddle day. After that, it drops back down to small junk again.
So, bottom line: the first good surf is Saturday the 25th, but Sunday the 26th is the standout. The rest of the 16-day window is mostly flat or too big and sloppy. The inconsistent nature of this spot means a run like this isn’t too surprising.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun afternoon. Warm (max 32°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Wed afternoon. Warm (max 30°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | SSW 7 | ESE 10 | SE 10 | SE 10 | ESE 9 | E 9 | SE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 8 | ESE 9 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | SSE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 26 | 18 | 16 | 14 | 15 | 13 | 24 | 17 | 17 | 17 | 15 | 18 | 16 | 23 | 23 | 23 | 23 | 11 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross-on | glassy | cross-on | on | cross-on | on | on | cross-on | on | cross-on | glassy | glassy | cross-on | glassy | glassy | on | cross-off |
High Tide | 7:16AM1.84m | 8:36PM1.76m | 8:04AM1.75m | 9:08PM1.72m | 8:52AM1.63m | 9:39PM1.67m | 9:44AM1.49m | 10:10PM1.62m | 10:46AM1.35m | 10:42PM1.56m | 12:10PM1.25m | 11:21PM1.50m | |||||||
Low Tide | 1:35AM0.79m | 1:58PM0.09m | 2:18AM0.73m | 2:36PM0.26m | 3:02AM0.69m | 3:11PM0.45m | 3:49AM0.67m | 3:45PM0.65m | 4:40AM0.66m | 4:20PM0.84m | 5:41AM0.66m | 5:01PM1.01m | |||||||
 |  |  |  | |  |  | | | | | | |  | | | | | | |
 | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — |
 | 7:13 | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — |
mm | — | — | — | 1 | — | 2 | 1 | 1 | 3 | 1 | — | — | — | 1 | 4 | 1 | 4 | 7 | 2 |
Temp °C | 28 | 32 | 30 | 28 | 30 | 29 | 27 | 29 | 29 | 27 | 30 | 30 | 27 | 29 | 30 | 28 | 30 | 30 | 27 |
Feels °C | 32 | 36 | 34 | 33 | 34 | 33 | 32 | 33 | 33 | 32 | 34 | 34 | 32 | 34 | 35 | 34 | 36 | 35 | 32 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SW 7 | SE 10 | ESE 9 | ESE 4 | SE 8 | SE 4 | ESE 9 | SE 4 | SSE 4 | ESE 9 | ESE 9 | SE 8 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | SSE 11 |
| kJ | 26 | 18 | 11 | 14 | 15 | 2 | 24 | 9 | 17 | 8 | 5 | 16 | 16 | 11 | 23 | 23 | 23 | 11 | 11 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | ESE 10 | ESE 9 | E 9 | SE 9 | SE 8 | E 9 | SE 8 | SE 8 | ESE 9 | ESE 9 | SE 8 | SSE 8 | ESE 11 | SE 8 | SSW 3 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 12 | 18 | 16 | 14 | 13 | 11 | 7 | 10 | 9 | 17 | 15 | 18 | 7 | 23 | 10 | 1 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | ESE 10 | SSW 8 | SE 10 | SSW 8 | SSW 7 | E 9 | ESE 3 | ESE 9 | ESE 12 | SE 9 | SSE 9 | ESE 12 | ESE 11 | S 4 | S 7 | SSE 8 | — | S 8 | ESE 11 |
| kJ | 18 | 12 | 15 | 11 | 4 | 13 | 1 | 17 | 14 | 13 | 7 | 13 | 12 | 1 | 1 | 6 | — | 1 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ESE 3 | — | S 3 | SSE 4 | SSE 4 | SSE 4 | S 4 | S 4 | S 4 | — | SSW 4 | SW 3 | — | — | SSW 3 |
| kJ | — | — | — | — | 1 | — | 1 | 11 | 12 | 8 | 7 | 7 | 4 | — | 1 | 4 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 6 | 30 | 30 | 336 | 475 | 30 | 30 | 30 | 14 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
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)
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 Asakawa 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 Asakawa Surf forecast
The above surf forecast table for Asakawa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Asakawa can be found by selecting the local surf guide option on the grey menu. Our Asakawa 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 (Asakawa) 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 Asakawa 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.
Are you planning a holiday in Shikoku? If you are looking for accommodation near Asakawa, camping, hotels and holiday cottages in Shikoku, consider staying in Anan which is 41 km (25 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 44 km (27 miles) away, Komatsushima, Aki and Kamojima.
Nearest