Surf Forecasts:
Uchiumi surf forecast from 22 Jul 2026:
- Best quality surf: Thursday 23 Jul, 9AM (local time) - 2ft (0.6m), 10s period, E swell with glassy winds.
- Most powerful swell: Tuesday 28 Jul, 12AM (local time) - 2ft (0.6m), 10s period, ESE swell with 78 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 9AM (local time) - 2ft (0.6m), 10s period with E 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 Thursday (Jul 23) at 9AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.2m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Uchiumi in the next 16 days are 0.6m 10s and forecast to arrive on Tuesday (Jul 28) at 12AM. 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 Thursday (Jul 23) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 23rd Jul) | 2ft (0.6m) 10s |
| Best Surf | 9AM (Thu 23rd Jul) | 2ft (0.6m) 10s |
| Most Powerful | 12AM (Tue 28th Jul) | 2ft (0.6m) 10s |
Table - best surf conditions forecast for Uchiumi over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. The next couple of weeks around Uchiumi are a real tale of two halves. For the first week or so, we’re looking at a pretty flat spell. The good news is that after that, a serious pulse of swell shows up, and it’s worth waiting for.
Right now, through the 23rd of July and into the end of the month, the surf is tiny. We’re talking ankle-snappers in the 0.7ft to 2ft range. The water is a warm 84°, which is pretty much spot on for this time of year. The winds are often light and glassy in the mornings, especially on Thursday the 23rd, Friday the 24th, and Saturday the 25th. But with that combined wave energy barely cracking 90, it’s just not enough to get excited about. There’s nearly a full week of these tiny, ordinary waves, so don’t rush out.
Things start to stir on the morning of Sunday, August 2nd. The swell bumps up to 3ft from the ESE with a period of 16 seconds, and combined energy jumps to 491. That’s a moderate groundswell. The morning is glassy and clean. It’s still small, but it’s a glimmer of hope. The next morning, Monday the 3rd, sees a bigger jump to 6ft, but the wind is a light cross-onshore, so it’s a bit messy.
Now, the standout window is Tuesday, August 4th, through Thursday, August 6th. Tuesday morning is the pick of the bunch. Uchiumi is a reef break, and it’s getting a solid 8ft of swell from the east with a very long period of 19 seconds. The combined energy is a massive 4757, which is strong. The wind is glassy, so the conditions will be clean. This is proper groundswell, so expect long, powerful lines and long lulls between sets. The reef setup will handle that long period really well. The crowd factor is “often,” so expect a few other surfers out there. This size is for experienced surfers only; it’s too big for beginners.
The morning of Wednesday, August 5th, is nearly identical, also 8ft from the east, glassy, and pumping. The energy is still 4107. Thursday the 6th drops a touch to 6ft, but it’s still a solid east swell with a 15-second period, and the morning is glassy. The energy is 1566. These are the days to clear your schedule. Keep in mind, this is a long-range forecast, so it’s promising but not locked in yet.
The break itself, Uchiumi, is a fairly consistent reef break that works best on a southeast swell direction.
Rusty out.
Short Range ForecastMostly dry. Warm (max 32°C on Thu afternoon, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Tue afternoon. Warm (max 30°C on Sun morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
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 10 | E 10 | E 10 | E 10 | E 10 | SE 11 | SE 11 | SE 11 | SE 10 | S 9 | S 8 | S 8 | ESE 10 | S 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 71 | 71 | 48 | 48 | 31 | 30 | 30 | 29 | 25 | 40 | 51 | 49 | 59 | 58 | 78 | 56 | 54 | 55 | 56 | 56 | 55 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | glassy | cross | cross-off | glassy | cross | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross | cross-off | glassy | cross | cross-off |
High Tide | 1:35PM1.54m | 00:22AM1.82m | 3:27PM1.63m | 1:33AM1.81m | 4:37PM1.77m | 2:44AM1.85m | 5:22PM1.90m | 3:46AM1.93m | 5:58PM2.00m | 4:38AM2.01m | 6:31PM2.08m | 5:24AM2.09m | 7:00PM2.12m | ||||||||
Low Tide | 6:17PM1.29m | 8:00AM0.63m | 8:00PM1.39m | 9:11AM0.49m | 9:32PM1.39m | 10:07AM0.35m | 10:33PM1.33m | 10:54AM0.23m | 11:19PM1.24m | 11:35AM0.14m | 11:58PM1.14m | 12:13PM0.10m | 00:33AM1.03m | ||||||||
 | |  | | | | |  |  | |  | | |  |  | | | | | | | |
 | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — |
 | — | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 4 | — | 6 | 2 | — | — | — |
Temp °C | 30 | 32 | 29 | 30 | 30 | 29 | 30 | 31 | 29 | 30 | 30 | 29 | 29 | 30 | 28 | 29 | 30 | 28 | 30 | 30 | 29 |
Feels °C | 33 | 36 | 33 | 34 | 32 | 34 | 35 | 35 | 34 | 33 | 33 | 35 | 34 | 33 | 32 | 34 | 33 | 33 | 33 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SE 11 | E 9 | SSE 7 | S 9 | S 8 | S 8 | S 8 | S 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 71 | 71 | 48 | 48 | 30 | 27 | 30 | 26 | 16 | 40 | 51 | 49 | 49 | 56 | 78 | 56 | 54 | 55 | 56 | 56 | 55 |
Swell 2 Height (m) Direction Period (s) | S 7 | SE 10 | S 4 | SE 9 | ESE 18 | SE 11 | E 9 | SE 11 | SE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 4 | 4 | 2 | 13 | 31 | 30 | 26 | 29 | 25 | 39 | 42 | 45 | 59 | 58 | 35 | 36 | 21 | 21 | 11 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | SE 20 | S 7 | SE 8 | ESE 18 | ESE 9 | ESE 17 | ESE 16 | ESE 16 | E 9 | E 9 | E 9 | E 8 | ESE 14 | ESE 14 | SE 14 | SE 14 | ESE 13 | SE 13 | ESE 13 | SE 13 | SE 5 |
| kJ | 15 | 1 | 3 | 31 | 8 | 27 | 26 | 25 | 15 | 14 | 13 | 12 | 40 | 19 | 8 | 7 | 17 | 7 | 17 | 7 | 1 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SW 4 | — | — | — | — | — | — | — | — | — | — | — | SSW 2 | — | — | — | — | SW 4 | — |
| kJ | — | 2 | 7 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 641 | 2 | 0 | 121 | 0 | 0 | 121 | 2 | 0 | 328 | 0 | 0 | 121 | 0 | 0 | 121 | 0 | 0 | 46 | 2 |
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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