Surf Forecasts:
Uchiumi surf forecast from 14 Sep 2026:
- Best quality surf: Sunday 20 Sep, 9PM (local time) - 20ft (6.0m), 14s period, ESE swell with cross-onshore winds.
- Most powerful swell: Monday 21 Sep, 9AM (local time) - 23ft (7.0m), 15s period, E swell with 21,872 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 9PM (local time) - 4ft (1.2m), 8s period with ESE 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 (Sep 14) at 9PM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.5m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Uchiumi in the next 16 days are 7.0m 15s and forecast to arrive on Monday (Sep 21) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Monday (Sep 21) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 14th Sep) | 4ft (1.2m) 8s |
| Best Surf | 9PM (Sun 20th Sep) | 20ft (6.0m) 14s |
| Most Powerful | 9AM (Mon 21st Sep) | 23ft (7.0m) 15s |
Table - best surf conditions forecast for Uchiumi over the next 16 days.
The Lowdown
Right then, let's have a look at what's cookin' for Uchiumi over the next couple of weeks.
Honestly, for a spot that's fairly consistent, we're looking at a pretty grim stretch here in the short term. We've got a whole lotta poor conditions to wade through before we see anything worth paddling out for.
There's a real gap to start with, with nothing good on offer for the first several days. The only window that even pops its head up comes on Tuesday the 15th. Uchiumi, a reef break that handles a fair bit of swell, sees a pulse of groundswell. It's 5-foot swell out of the ESE running at a 10-second period, which gives the place some shape. But the real star of the show that morning? Glassy conditions. It’s flat calm, clean as a whistle. The water temp is sitting at 82°, which is about average for this time of year. The combined energy is moderate, at 401, so it’s got a bit of push. This is the pick of the bunch, without a doubt. Just be aware, the crowds are often here.
After that? Back to the gloom. We get cross-on or onshore winds for days. The swell builds, but it's all blown out. By the time we get to the morning of Monday the 21st, the models are showing a monstrous 23-foot swell from the east with a very long 15-second period. But at that size, with a near gale cross-onshore ripping at 31 mph, it's just a washing machine. No good for a paddle.
There is a flicker of hope much later. Tuesday the 22nd afternoon looks tidy. The swell drops back to a still-chunky 8-foot from the east, with a solid 12-second period. The wind swings offshore and light, just 6 mph, so the face should be clean. That's excellent for experienced surfers only, mind you, as 8-foot is a serious wave. The energy is strong at 1912. But that's it. After that, it fades right off into tiny, weak, onshore slop.
So for the record: the standout is Tuesday morning the 15th for clean, fun waves. The other potential highlight is Tuesday afternoon the 22nd for the big stuff, but that's strictly for the experienced crew. Everything else in this 16-day window is a write-off.
Rusty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Tue night. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Thu night. Warm (max 27°C on Sat afternoon, min 24°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 8 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 7 | E 7 | E 7 | E 7 | E 8 | E 9 | E 14 | E 14 | ESE 14 | ESE 15 | ESE 15 | E 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 194 | 212 | 399 | 334 | 266 | 211 | 173 | 113 | 205 | 205 | 202 | 311 | 627 | 1014 | 3533 | 4310 | 4373 | 7056 | 8873 | 16723 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | cross | glassy | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:29PM2.17m | 8:10AM2.10m | 7:54PM2.12m | 8:53AM1.96m | 8:20PM2.06m | 9:44AM1.80m | 8:48PM1.96m | 10:56AM1.65m | 9:22PM1.85m | 1:02PM1.59m | 10:18PM1.71m | 3:05PM1.69m | 00:29AM1.62m | |||||||
Low Tide | 1:49AM0.37m | 1:59PM0.81m | 2:26AM0.39m | 2:29PM0.98m | 3:06AM0.45m | 3:00PM1.17m | 3:56AM0.54m | 3:38PM1.34m | 5:05AM0.65m | 4:58PM1.49m | 6:44AM0.70m | 8:10PM1.48m | ||||||||
 |  |  | | | | | | |  |  | | | |  | |  | | |  | |
 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — |
 | 6:22 | — | — | 6:21 | — | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — |
mm | 2 | 1 | 1 | 3 | 8 | 2 | 2 | 4 | 1 | — | 5 | 1 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 27 | 25 | 26 | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 26 |
Feels °C | 29 | 28 | 31 | 31 | 31 | 28 | 28 | 26 | 26 | 25 | 25 | 26 | 27 | 26 | 26 | 27 | 26 | 23 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 8 | E 13 | E 7 | E 12 | E 8 | E 9 | E 14 | E 14 | ESE 14 | ESE 15 | ESE 15 | ESE 14 |
| kJ | 194 | 212 | 399 | 334 | 266 | 211 | 173 | 113 | 205 | 78 | 167 | 45 | 453 | 803 | 3533 | 4310 | 4373 | 7056 | 8873 | 10140 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | S 7 | E 15 | E 14 | E 14 | E 14 | E 13 | E 13 | SE 8 | E 12 | S 10 | S 10 | ESE 16 | S 9 | S 8 | SE 17 | — | — | — |
| kJ | 83 | 74 | 1 | 67 | 33 | 142 | 100 | 84 | 83 | 3 | 44 | 2 | 7 | 457 | 6 | 6 | 1098 | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 7 | E 16 | S 7 | S 7 | E 16 | S 7 | S 7 | S 7 | — | — | — | S 10 | E 20 | S 9 | — | — | S 8 | — | — | — |
| kJ | 1 | 21 | 1 | 1 | 45 | 1 | 1 | 1 | — | — | — | 2 | 8 | 6 | — | — | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 4 | NE 5 | NE 5 | E 7 | E 7 | E 7 | E 7 | E 8 | E 9 | ENE 10 | ENE 11 | — | N 6 | N 6 | E 14 |
| kJ | — | — | — | — | — | 10 | 11 | 18 | 199 | 205 | 202 | 311 | 627 | 1014 | 1086 | 183 | — | 108 | 96 | 16723 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 314 | 0 | 0 | 15 | 0 | 43 | 46 | 43 | 46 | 46 | 46 | 236 | 299 | 46 | 43 | 46 | 46 | 291 | 291 | 121 |
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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