Surf Forecasts:
Udo Shrine surf forecast from 5 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 12AM (local time) - 4.5ft (1.3m), 10s period, SE swell with 327 kJ wave energy.
Best Forecast Surf Conditions for Udo Shrine this week:
The most powerful waves expected at Udo Shrine in the next 16 days are 1.3m 10s and forecast to arrive on Wednesday (Sep 09) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 10s period and expected on Sunday (Sep 06) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Wed 9th Sep) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get straight into it, because this stretch is a bit of a flat, frustrating story for most of us. We’re looking at a 16-day window that starts with a long, dead run before anything worth paddling out for finally shows up.
We’ve only got one break on the radar: Udo Shrine (Japan). It’s a tricky reef setup that’s inconsistent, and for the first 10 days, it’s just one big fat zero. From the 5th of September all the way through to the 14th, every session is a bust – blown out, chopped up, or just too small. Wind is mostly cross-onshore or onshore, and the swell is weak or misdirected. There’s no point suiting up.
It’s not until Tuesday the 15th of September that things finally wake up a little. Swell hits about 5ft from the east, with a 9-second period. The combined energy is moderate, running around 642 in the morning. Still a bit of a mess though, with a light cross-onshore breeze. The afternoon cleans up slightly, dropping to about 5ft east swell and a light cross breeze. It’s marginal – you might snag a few if you’re keen, but nothing to write home about.
Wednesday the 16th of September is the one true standout in this whole outlook, and honestly, it’s the only time you should bother paddling out. The morning is special: glassy conditions – dead calm, offshore wind from the southwest, only 5 km/h. The swell is east at about 2ft with a long 13-second period, which means clean, lined-up waves with proper energy (combined energy is 304). The water temp is 84°, right on average for this time of year. This is the sweet spot; it’s small but clean, and the reef will hold it well. But remember, this spot is inconsistent, so don’t expect a wave train. Crowds are likely here, so keep your eyes peeled and be ready to share.
After that, we’re back to the grind from the 17th through the 20th – onshore winds, weak swell, and poor conditions again. The energy drops hard, down to just a whisper by the end. Another flat spell closes out the period.
So here’s the deal: if you can only surf once in the next 16 days, target Wednesday morning, 16th September. It’s short-lived, but it’s the only glassy, clean moment on offer. The rest? Get the kite gear ready or just wait for the next proper swell.
– Rusty
Short Range ForecastHeavy rain (total 95mm), heaviest during Sun afternoon. Warm (max 27°C on Mon morning, min 25°C on Sat morning). Winds decreasing (near gales from the NE on Sun afternoon, moderate winds from the NNE by Sun night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Wed morning. Warm (max 27°C on Tue morning, min 24°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | S 8 | S 8 | S 8 | SSW 9 | SE 10 | SE 10 | SE 9 | S 10 | S 10 | S 10 | S 10 | SE 10 | SE 8 | SE 8 | NE 6 | SE 8 | SE 8 | E 15 | E 15 | E 15 | E 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 223 | 108 | 35 | 15 | 33 | 251 | 97 | 49 | 100 | 117 | 127 | 327 | 201 | 154 | 133 | 55 | 46 | 44 | 69 | 116 | 97 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 1:42PM1.60m | 11:27PM1.76m | 3:44PM1.71m | 1:35AM1.73m | 4:34PM1.84m | 3:13AM1.82m | 5:09PM1.94m | 4:18AM1.96m | 5:38PM2.02m | 5:08AM2.08m | 6:06PM2.07m | 5:52AM2.15m | 6:32PM2.11m | ||||||||
Low Tide | 5:48PM1.49m | 7:39AM0.63m | 8:43PM1.47m | 9:09AM0.52m | 10:01PM1.31m | 10:11AM0.39m | 10:46PM1.12m | 10:59AM0.30m | 11:23PM0.92m | 11:39AM0.27m | 11:57PM0.75m | 12:14PM0.31m | 00:31AM0.61m | ||||||||
 | |  |  |  |  |  |  |  | | |  | | | |  | |  | | | | |
 | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 6:34 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:25 | — |
mm | 17 | 24 | 14 | 3 | 27 | 10 | — | — | — | — | — | 1 | 3 | 1 | 5 | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 24 | 22 | 21 | 20 | 23 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 28 | 28 | 24 | 24 | 24 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | SSW 9 | SE 10 | SE 10 | SE 9 | S 10 | S 10 | S 10 | S 10 | SE 10 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 7 | SE 7 | ENE 8 | ENE 8 |
| kJ | 223 | 108 | 35 | 15 | 33 | 251 | 97 | 49 | 100 | 117 | 127 | 327 | 201 | 154 | 109 | 55 | 46 | 44 | 30 | 190 | 177 |
Swell 2 Height (m) Direction Period (s) | E 15 | SE 7 | E 13 | E 13 | S 9 | — | S 10 | SSW 11 | ESE 11 | SE 8 | ESE 10 | ENE 7 | ENE 8 | ENE 7 | S 8 | S 8 | S 9 | E 15 | E 15 | SE 7 | SSE 7 |
| kJ | 4 | 21 | 4 | 3 | 13 | — | 31 | 23 | 24 | 65 | 20 | 121 | 99 | 61 | 20 | 10 | 13 | 39 | 69 | 44 | 81 |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 14 | — | — | — | — | S 10 | — | SSW 12 | ESE 11 | — | E 19 | E 19 | S 8 | SE 11 | E 16 | E 16 | S 8 | S 7 | E 15 | E 14 |
| kJ | 3 | 4 | — | — | — | — | 30 | — | 26 | 23 | — | 7 | 7 | 22 | 18 | 46 | 46 | 11 | 10 | 116 | 97 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 8 | ENE 9 | ENE 10 | ENE 11 | ENE 11 | ENE 10 | ENE 8 | ENE 7 | ENE 8 | — | — | — | NE 6 | ENE 7 | ENE 8 | ENE 7 | ENE 6 | — | — |
| kJ | 600 | 726 | 1016 | 1677 | 2947 | 3969 | 2077 | 1102 | 471 | 208 | 324 | — | — | — | 133 | 449 | 597 | 263 | 106 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 136 | 33 | 94 | 297 | 136 | 136 | 33 | 297 | 33 | 33 | 33 | 58 | 58 | 5 | 5 | 33 | 58 | 33 | 33 | 33 | 6 |
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)
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 Udo Shrine 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 Udo Shrine Surf forecast
The above surf forecast table for Udo Shrine provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Udo Shrine can be found by selecting the local surf guide option on the grey menu. Our Udo Shrine 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 (Udo Shrine) 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 Udo Shrine 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.
Udo Shrine is 10 km (6 miles) from Nichinan. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Nichinan. Nichinan has rooms for a wide range of budgets as well as car hire and transport links.
Nearest