Surf Forecasts:
Udo Shrine surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 3AM (local time) - 3.5ft (1.1m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 12PM (local time) - 4ft (1.2m), 11s period, E swell with 326 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 9PM (local time) - 2.5ft (0.8m), 9s period with S 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 Wednesday (Aug 12) at 9PM. The primary swell is predicted to be 0.8m and 9s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 1.2m 11s and forecast to arrive on Monday (Aug 17) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 10s period and expected on Wednesday (Aug 12) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 12th Aug) | 2.5ft (0.8m) 9s |
| Best Surf | 3AM (Mon 17th Aug) | 3.5ft (1.1m) 10s |
| Most Powerful | 12PM (Mon 17th Aug) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it for this neck of the woods.
Right off the bat, the first few days are a bit of a write-off. We're looking at a real slow start, so don't bother paddling out until we get into the middle of next week. The good news is there's a bit of a pulse building.
The first real window of opportunity shows up on Monday, the 17th of August. The swell kicks up a notch, with clean 4ft to 4ft surf coming from the East, with a period of 10 seconds. The combined energy is moderate, hitting 296 to 377 (moderate wave energy). The wind is looking light and cross-offshore, which will keep the surface clean. This is the best bet in the first week, no question.
Then, we get a bit of a lull before a proper standout arrives on Friday, the 21st of August. Thursday the 20th is glassy but small, so wait for Friday. On Friday morning, we've got glassy conditions with a calm wind and a 3ft South swell. That's a solid start, but the real action is Friday afternoon. The swell jumps to 4ft from the South, with a period of 10 seconds, and the combined energy is strong at 345 (moderate wave energy). The wind is light and cross-offshore, so the waves will be clean and have some punch. The Udo Shrine is a reef break, so that longer period South swell will wrap in nicely, offering some proper shape. It's an inconsistent spot, so you need to be patient, but when it's on, it's on. The crowds here are often around, so expect some company if you try to get a piece of it.
After that, Saturday the 22nd sees a bit of a bumpier, more jumbled swell from the SSW, with a short 8-second period, so it’s not as good. The following week, from the 23rd onwards, it drops off again into the small stuff, with very ordinary conditions. By the 26th of August, the swell builds again, pushing 4ft to 5ft from the Southeast with a period of 11 seconds, but the wind is onshore, making it a messy, choppy affair. The energy is strong (453 to 615), but it's not clean. By Thursday the 27th, we’re looking at 6ft SE swell with a strong onshore wind, which is a real mess and only for the experts – or the kites.
Water temps are about average for this time of year, so no need for a thick wetsuit.
Keep an eye on that Friday the 21st. That's the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 11 | S 10 | S 10 | S 9 | S 9 | S 9 | E 10 | E 9 | S 8 | S 9 | S 9 | S 8 | S 8 | S 8 | SE 12 | S 8 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 286 | 154 | 145 | 106 | 78 | 76 | 69 | 61 | 51 | 60 | 95 | 66 | 69 | 68 | 49 | 50 | 231 | 314 | 284 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | off | glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross |
High Tide | 5:10AM2.09m | 6:41PM2.06m | 5:59AM2.16m | 7:12PM2.09m | 6:45AM2.18m | 7:42PM2.09m | 7:28AM2.14m | 8:10PM2.07m | 8:11AM2.04m | 8:36PM2.04m | 8:53AM1.91m | 9:02PM1.99m | |||||||
Low Tide | 11:36PM1.12m | 11:58AM0.11m | 00:16AM0.97m | 12:39PM0.10m | 00:55AM0.83m | 1:17PM0.18m | 1:32AM0.73m | 1:52PM0.32m | 2:09AM0.67m | 2:24PM0.52m | 2:46AM0.65m | 2:54PM0.73m | |||||||
 |  | |  | | | | | | | |  | | | | | | | | |
 | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — |
 | 7:01 | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 26 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 30 | 31 | 31 | 31 | 31 | 30 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | E 11 | ENE 10 | ENE 11 | ENE 11 | S 9 | S 9 | S 8 | S 5 | ENE 10 | ENE 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 286 | 378 | 350 | 156 | 78 | 76 | 69 | 21 | 141 | 187 | 208 | 208 | 204 | 208 | 204 | 192 | 231 | 314 | 284 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 9 | E 10 | E 10 | E 10 | S 8 | S 6 | S 6 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 |
| kJ | 202 | 154 | 145 | 106 | 74 | 71 | 68 | 52 | 34 | 34 | 95 | 66 | 69 | 68 | 49 | 50 | 34 | 33 | 20 |
Swell 3 Height (m) Direction Period (s) | NNE 5 | ENE 12 | NE 5 | SE 12 | SE 12 | ESE 12 | SSE 4 | E 9 | S 8 | S 9 | SE 11 | ESE 11 | ESE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 5 | 119 | 7 | 6 | 6 | 14 | 4 | 61 | 51 | 60 | 5 | 11 | 14 | 22 | 34 | 31 | 31 | 30 | 18 |
Wind waves Height (m) Direction Period (s) | SW 3 | NNE 6 | — | SW 3 | SW 3 | S 3 | — | SSE 6 | — | — | — | — | — | — | E 3 | — | — | — | — |
| kJ | 2 | 93 | — | 2 | 1 | 2 | — | 43 | — | — | — | — | — | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 1 | 213 | 0 | 0 | 502 | 0 | 58 | 33 | 13 | 1 | 33 | 1 | 6 | 33 | 28 | 0 | 0 | 15 |
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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