
Surf Forecasts:
Uchiumi surf forecast from 9 Jul 2026:
- Best quality surf: Sunday 12 Jul, 6AM (local time) - 7.5ft (2.3m), 13s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 3AM (local time) - 11ft (3.5m), 17s period, SSE swell with 7,934 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 6AM (local time) - 7.5ft (2.3m), 13s period with SSE swell.
Best Forecast Surf Conditions for Uchiumi this week:
The surf forecast for Uchiumi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 12) at 6AM. The primary swell is predicted to be 2.3m and 13s period with a secondary swell of 0.4m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Uchiumi in the next 16 days are 3.5m 17s and forecast to arrive on Saturday (Jul 11) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Jul 13) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 12th Jul) | 7.5ft (2.3m) 13s |
| Best Surf | 6AM (Sun 12th Jul) | 7.5ft (2.3m) 13s |
| Most Powerful | 3AM (Sat 11th Jul) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Uchiumi over the next 16 days.
Alright, Rusty here, lookin' at the next 16 days for Uchiumi. The start of this stretch is a full-on battle. We got some serious size rollin' in, but the wind is not cooperating. The water’s sittin’ at 79°F, which is a bit chillier than normal for this time of year, so you might want a spring suit.
We kick off on Thursday the 9th and it’s already a bit of a mess. There’s a solid 10ft swell from the southeast, but the period is a long 15 seconds, and it’s carrying a ton of energy (3404). The problem is that east wind is a cross-onshore, making it choppy. It’s really only for the experienced crew who don’t mind a fight.
Friday the 10th and Saturday the 11th are more of the same story. The swell jumps up to 12ft, with a very long period of 16 to 17 seconds, and the energy is pumping hard (6306 to 7815). That’s a lot of water moving, but it’s still coming with that onshore or cross-onshore wind. It’s big, it’s messy, and it’s gonna be a handful. Risk of thunderstorms too, so keep an eye on the sky.
Now, Sunday the 12th is where things get interesting. That morning, the swell drops to a much more manageable 7ft from the SSE, still with a long 13-second period, and the wind goes glassy. Zero wind. That’s the standout moment. The energy is still moderate (1613), but the conditions will be clean. This is the best session on offer. The afternoon gets a bit cross and choppy again, so get on it early.
Monday the 13th morning is glassy again with a smaller 5ft swell, but it’s pretty weak (464). The afternoon picks up a little cross-offshore wind and a 5ft swell, which cleans it up nicely, but it’s still not gonna be a world-beater.
After that, we hit a massive dry spell. From Tuesday the 14th all the way to Thursday the 24th, the surf just drops off a cliff. We’re talking small, weak waves (2ft to 3ft) with almost no energy, and the wind is mostly onshore or cross-onshore. The conditions are poor for the vast majority of that time. There’s a tiny window on the morning of Wednesday the 24th where it’s glassy with a 3ft swell, but it’s ordinary at best. The last two weeks of this lookout are pretty much a write-off for any decent paddle surfing.
So, for the best bet: set your alarm for Sunday the 12th, early morning. That’s the one clean, glassy window with a solid 7ft groundswell. Everything else is either blown out, too small, or just plain flat.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Fri night. Warm (max 28°C on Sat morning, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 29°C on Mon morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thu 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 15 | SE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 17 | SSE 17 | SSE 15 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | S 11 | S 10 | S 9 | S 9 | S 9 | E 10 | E 10 | ESE 10 | E 9 |
Wave Graph | |||||||||||||||||||||
3330 | 4948 | 6270 | 6815 | 7368 | 7776 | 6697 | 3469 | 1585 | 1236 | 797 | 431 | 595 | 196 | 110 | 81 | 57 | 47 | 70 | 123 | 60 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross | cross-off | glassy | cross-off | cross-off | on | on | glassy | glassy | cross-on | cross | cross-on |
High Tide | 1:28AM1.83m | 4:02PM1.69m | 2:28AM1.86m | 5:00PM1.82m | 3:24AM1.91m | 5:45PM1.93m | 4:15AM1.98m | 6:22PM2.02m | 5:02AM2.04m | 6:56PM2.07m | 5:46AM2.09m | 7:29PM2.10m | 6:28AM2.11m | ||||||||
Low Tide | 7:34PM1.25m | 8:52AM0.52m | 8:58PM1.31m | 9:48AM0.37m | 10:05PM1.31m | 10:37AM0.23m | 10:58PM1.27m | 11:20AM0.12m | 11:41PM1.21m | 12:00PM0.06m | 00:21AM1.14m | 12:38PM0.05m | 00:58AM1.06m | ||||||||
— | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | |
7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | 7:20 | |
mm | — | 2 | 2 | 2 | 8 | 4 | 3 | 1 | — | — | — | — | 3 | — | 2 | — | — | — | — | — | 1 |
Temp °C | 26 | 25 | 26 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 28 | 27 | 27 | 26 | 27 | 27 | 26 | 27 |
Feels °C | 27 | 28 | 29 | 30 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 33 | 33 | 33 | 31 | 31 | 31 | 32 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SE 15 | SE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 17 | SSE 17 | SSE 15 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | S 10 | S 9 | S 9 | S 9 | E 10 | E 10 | ESE 10 | E 9 |
3330 | 4948 | 6270 | 6815 | 7368 | 7776 | 6697 | 3469 | 1585 | 1236 | 797 | 431 | 337 | 196 | 110 | 81 | 57 | 47 | 70 | 123 | 60 | |
Swell 2 Height (m) Direction Period (s) | — | E 8 | — | E 8 | ENE 9 | E 9 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | ESE 9 | E 9 | E 9 | S 8 | S 8 | S 8 | E 6 |
— | 46 | — | 35 | 26 | 39 | 45 | 47 | 28 | 27 | 27 | 26 | 26 | 29 | 29 | 42 | 42 | 34 | 33 | 21 | 16 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 13 | SE 13 | SE 10 | SE 9 | ESE 12 | — | SE 10 | SE 10 | S 8 | S 8 |
— | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 16 | 3 | 14 | — | 17 | 16 | 33 | 11 | |
Wind waves Height (m) Direction Period (s) | E 8 | — | E 8 | — | — | — | — | — | — | — | — | — | S 11 | — | — | ENE 3 | ENE 4 | E 4 | E 5 | — | — |
74 | — | 36 | — | — | — | — | — | — | — | — | — | 595 | — | — | 1 | 1 | 1 | 7 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 361 | 46 | 205 | 332 | 205 | 205 | 314 | 46 | 0 | 314 | 0 | 0 | 0 | 0 | 46 | 46 | 0 | 0 | 46 | 15 | 46 |
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)
Information about the Uchiumi Surf forecast
The above surf forecast table for Uchiumi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Uchiumi can be found by selecting the local surf guide option on the grey menu. Our Uchiumi 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 (Uchiumi) 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 Uchiumi 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.
Uchiumi is 19 km (12 miles) from Miyazaki-shi. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Miyazaki-shi. Miyazaki-shi has rooms for a wide range of budgets as well as car hire and transport links.











