Surf Forecasts:
Udo Shrine surf forecast from 23 Aug 2026:
- Best quality surf: Saturday 29 Aug, 6AM (local time) - 5ft (1.5m), 8s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 25 Aug, 9PM (local time) - 16ft (5.0m), 15s period, SSE swell with 10,398 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 6AM (local time) - 5ft (1.5m), 8s period with SSE swell.
Best Forecast Surf Conditions for Udo Shrine this week:
The surf forecast for Udo Shrine over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 29) at 6AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.7m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 5.0m 15s and forecast to arrive on Tuesday (Aug 25) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 10s period and expected on Monday (Aug 24) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 29th Aug) | 5ft (1.5m) 8s |
| Best Surf | 6AM (Sat 29th Aug) | 5ft (1.5m) 8s |
| Most Powerful | 9PM (Tue 25th Aug) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, mates. Rusty here. Let's talk about what Udo Shrine has lined up for us. It's a slow start, but there's a few golden hours if you're dialed in.
The first week is pretty much a no-go. From the 24th to the 28th of August, it's a total mess. The ocean is pumping with some serious energy—combined swell energy hitting 9038 (strong to very strong)—but the wind is howling, mostly onshore or cross-onshore, just ruining any chance of a clean wave. The water temp is about what you'd expect for this time of year.
Then, on Saturday the 29th of August, things finally clean up. The morning is your best bet, with glassy conditions and a clean 3-foot swell from the SSE. The combined energy is a moderate 452, and those 8-second period waves will be fun, manageable little runners. The afternoon gets a bit cross-shore, so hit it early.
But the real gem is Sunday the 30th of August. The morning is clear, with a light cross-offshore breeze from the south, and we're looking at a clean 3-foot swell from the SSE. The combined energy is a weak 208, but with that light wind, it's going to be a perfect, glassy morning for a longboard or a fun fish. Just a heads up: Udo Shrine is an inconsistent reef break, and it can get crowded often, so you'll want to be there at first light.
Monday the 31st of August morning is also a decent option, with glassy conditions and a 3-foot swell from the south, though the energy is very weak at 100. It's surfable, but nothing to write home about.
Into the first week of September, it starts to get messy again. There's a bump of swell on the 1st of September, with 6 to 7-foot SSE swell and an 11-second period, but the wind is onshore or cross-onshore, which will mess it up. The combined energy is moderate (between 846 and 1204), but the wind is the spoiler. From the 2nd of September on, it's another run of strong winds and poor conditions, with a brief tease on the 5th of September where a 3-foot, 16-second SE groundswell rolls in, but it's cross-onshore, so it's a miss.
So, your window is tight: Saturday the 29th through Monday the 31st of August. If you've got to pick one, the morning of Saturday the 30th of August is your best shot. Go get it.
Rusty.
Short Range ForecastHeavy rain (total 48mm), heaviest during Tue night. Warm (max 28°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 69mm), heaviest during Wed night. Warm (max 29°C on Sat morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 | SE 13 | SE 17 | SE 16 | SE 16 | SE 15 | SSE 14 | SSE 12 | SSE 11 | SE 8 | SE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 177 | 273 | 2267 | 4899 | 8994 | 8577 | 8803 | 3468 | 2372 | 596 | 571 | 708 | 761 | 589 | 506 | 322 | 280 | 240 | 161 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | glassy | cross | glassy |
High Tide | 2:48AM1.69m | 5:13PM1.80m | 3:51AM1.79m | 5:40PM1.88m | 4:38AM1.90m | 6:05PM1.95m | 5:17AM2.00m | 6:29PM2.01m | 5:54AM2.07m | 6:53PM2.05m | 6:29AM2.11m | 7:15PM2.09m | |||||||
Low Tide | 9:49PM1.39m | 10:07AM0.64m | 10:34PM1.27m | 10:49AM0.51m | 11:09PM1.14m | 11:24AM0.40m | 11:39PM1.02m | 11:56AM0.34m | 00:09AM0.90m | 12:25PM0.32m | 00:38AM0.78m | 12:54PM0.35m | 1:08AM0.67m | ||||||
 |  | | | |  |  | | | | | | | | | | | |  | |
 | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — |
 | 6:49 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:42 | — |
mm | — | — | — | — | — | 5 | 20 | 12 | 11 | 21 | 12 | 8 | 9 | 6 | 6 | 7 | — | — | — |
Temp °C | 27 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 27 |
Feels °C | 31 | 30 | 30 | 30 | 28 | 29 | 31 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 31 | 34 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 10 | SE 13 | SE 17 | SE 16 | SE 16 | SE 15 | SSE 14 | SSE 12 | SSE 11 | SE 8 | SSW 9 | SSE 8 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | S 8 |
| kJ | 177 | 273 | 2267 | 4899 | 8994 | 8577 | 8803 | 3468 | 2372 | 596 | 92 | 708 | 761 | 589 | 506 | 322 | 280 | 240 | 161 |
Swell 2 Height (m) Direction Period (s) | SE 12 | E 10 | E 10 | ESE 6 | E 16 | E 12 | E 14 | E 13 | E 13 | S 10 | E 12 | E 12 | E 12 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 |
| kJ | 124 | 96 | 49 | 73 | 44 | 71 | 65 | 173 | 167 | 495 | 105 | 69 | 69 | 125 | 173 | 125 | 151 | 102 | 101 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SE 20 | E 12 | E 12 | — | E 15 | — | — | E 19 | E 13 | E 17 | E 16 | E 15 | SW 11 | SW 12 | SW 12 | SW 12 | SW 11 | SE 9 |
| kJ | 21 | 196 | 46 | 106 | — | 69 | — | — | 7 | 117 | 6 | 20 | 38 | 20 | 34 | 36 | 21 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | — | ESE 5 | ESE 5 | — | ENE 9 | ENE 9 | — | ESE 9 | — | — | SE 8 | — | — | — | — | — | — | — | — |
| kJ | — | 23 | 42 | — | 16 | 15 | — | 641 | — | — | 571 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 33 | 324 | 33 | 33 | 342 | 67 | 213 | 310 | 213 | 213 | 94 | 58 | 67 | 324 | 15 | 0 | 324 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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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.
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