Surf Forecasts:
Uchiumi surf forecast from 12 Jul 2026:
- Best quality surf: Monday 13 Jul, 12AM (local time) - 5.5ft (1.7m), 12s period, SSE swell with offshore winds.
- Most powerful swell: Sunday 12 Jul, 9PM (local time) - 6ft (1.8m), 12s period, SSE swell with 887 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 12AM (local time) - 5.5ft (1.7m), 12s 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 Monday (Jul 13) at 12AM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Uchiumi in the next 16 days are 1.8m 12s and forecast to arrive on Sunday (Jul 12) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Jul 14) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 13th Jul) | 5.5ft (1.7m) 12s |
| Best Surf | 12AM (Mon 13th Jul) | 5.5ft (1.7m) 12s |
| Most Powerful | 9PM (Sun 12th Jul) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Uchiumi over the next 16 days.
Alright, let’s talk Uchiumi in feet and knots.
The water is running a bit colder than usual for this time of year, at 80°, so keep that in mind.
The next few days are a mixed bag, but we’ve got a couple of windows that are worth a paddle. The standout is Monday morning, the 13th of July. We’ve got a clean 4ft swell from the SSE, with a period of 11 seconds, and it’s glassy – pure glass. That’s the kind of wind that’ll have the surface looking like a mirror. The wave energy is moderate (441), and with the wind being so light, the waves will be clean and lined up. This is the pick of the forecast for sure.
Monday afternoon holds up too, with a clean 4ft SSE swell, though the wind will swing to a slight cross-off, keeping it tidy. The wave energy is still moderate (358).
After that, it gets a bit tricky. Tuesday morning the 14th offers a drop in swell to 3ft, but it’s glassy again. The energy is low (142), so it’s small and clean, but more of a longboarder’s chance. The rest of the week and into the next sees a lot of onshore and cross-onshore winds, with the swell bouncing around. The wave energy gets strong on the 20th of July, with a 7ft ESE swell hitting 988, but it’s coming in with onshore wind, so it’ll be a messy, blown-out affair. Too big and ugly for a good time, honestly.
The next true glimmer of hope doesn’t come until Thursday the 23rd of July. The morning looks promising with a 3ft E swell, a period of 13 seconds, and glassy conditions. The energy is moderate (424). That’s a long period groundswell, and at Uchiumi, a reef break, it should wrap in nicely. The long period will mean longer waits between sets, but the shape should be there. The afternoon sees the wind go cross-shore, which will bring a bit of chop.
So, the hard truth is: the best surf is early on the 13th, and then there’s a long gap of poor conditions until the 23rd, which is over a week away and looks promising but is a long-range call. The 23rd is your second best bet, but it’s a gamble.
Rusty.
Short Range ForecastMostly dry. Warm (max 34°C on Wed morning, min 25°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Fri night. Warm (max 34°C on Wed afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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) | SSE 13 | SSE 12 | SSE 11 | SSE 10 | S 10 | S 9 | S 9 | S 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 9 | E 9 | E 9 | ESE 18 | ESE 17 | ESE 13 | ESE 12 | ESE 11 | ESE 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1276 | 741 | 407 | 324 | 196 | 108 | 79 | 56 | 35 | 33 | 33 | 31 | 43 | 43 | 42 | 106 | 394 | 499 | 418 | 240 | 503 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | cross-off | off | glassy | cross-on | off | cross-off | off | off | glassy | cross-on | cross | cross-on | on | glassy | cross-on | on | on | cross-on |
High Tide | 5:45PM1.93m | 4:15AM1.98m | 6:22PM2.02m | 5:02AM2.04m | 6:56PM2.07m | 5:46AM2.09m | 7:29PM2.10m | 6:28AM2.11m | 7:59PM2.10m | 7:10AM2.09m | 8:29PM2.09m | 7:52AM2.04m | 9:00PM2.05m | 8:37AM1.95m | |||||||
Low Tide | 10:58PM1.27m | 11:20AM0.12m | 11:41PM1.21m | 12:00PM0.06m | 00:21AM1.14m | 12:38PM0.05m | 00:58AM1.06m | 1:15PM0.09m | 1:34AM0.99m | 1:50PM0.18m | 2:12AM0.92m | 2:26PM0.31m | 2:52AM0.87m | ||||||||
 |  | | | | | | | | |  | | | | | |  |  | | |  | |
 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 |
 | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:21 | — | — | 7:20 | — | — | 7:20 | — | — | 7:19 | — | 7:19 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 1 | — | 4 | 1 |
Temp °C | 30 | 27 | 31 | 32 | 28 | 30 | 30 | 28 | 34 | 34 | 28 | 32 | 31 | 28 | 28 | 29 | 27 | 28 | 28 | 27 | 28 |
Feels °C | 31 | 31 | 35 | 36 | 32 | 33 | 33 | 32 | 37 | 35 | 31 | 37 | 35 | 32 | 32 | 33 | 32 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 11 | SSE 10 | S 10 | S 9 | S 9 | S 9 | S 8 | ESE 10 | S 8 | ESE 10 | E 9 | E 9 | E 9 | E 10 | ESE 17 | ESE 13 | ESE 12 | ESE 11 | ESE 12 |
| kJ | 1276 | 741 | 407 | 324 | 196 | 108 | 79 | 56 | 35 | 33 | 33 | 31 | 43 | 43 | 42 | 48 | 394 | 499 | 418 | 240 | 503 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 10 | ESE 9 | E 9 | ESE 10 | S 8 | ESE 10 | S 8 | S 8 | S 8 | S 7 | ESE 18 | E 9 | SE 9 | S 7 | E 14 | S 7 |
| kJ | 27 | 27 | 27 | 27 | 15 | 31 | 29 | 14 | 32 | 21 | 33 | 10 | 10 | 10 | 10 | 106 | 41 | 21 | 4 | 179 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 13 | SE 13 | SE 10 | SE 9 | E 9 | ESE 11 | SE 10 | — | SE 10 | ESE 9 | ESE 9 | S 8 | E 20 | S 7 | SE 10 | S 7 | S 7 | ESE 4 | SE 12 |
| kJ | — | — | 7 | 7 | 16 | 3 | 2 | 12 | 17 | — | 16 | 8 | 8 | 10 | 8 | 10 | 15 | 4 | 8 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 4 | — | — | — | — | WSW 2 | SW 3 | SSW 5 | SSW 3 | SSW 3 | — | — | — | — | SSW 7 | — | — | — |
| kJ | — | — | — | 16 | — | — | — | — | 1 | 1 | 27 | 1 | 1 | — | — | — | — | 10 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 314 | 0 | 0 | 0 | 0 | 0 | 37 | 0 | 0 | 2 | 0 | 5 | 18 | 2 | 205 | 46 | 0 | 299 | 703 | 43 | 46 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.
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