Surf Forecasts:
Udo Shrine surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 9PM (local time) - 11ft (3.5m), 13s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 21 Sep, 12AM (local time) - 11ft (3.5m), 13s period, E swell with 4,852 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 9PM (local time) - 11ft (3.5m), 13s period with E 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 Sunday (Sep 20) at 9PM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 0.2m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 3.5m 13s and forecast to arrive on Monday (Sep 21) 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 2.5m 9s period and expected on Friday (Sep 18) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 20th Sep) | 11ft (3.5m) 13s |
| Best Surf | 9PM (Sun 20th Sep) | 11ft (3.5m) 13s |
| Most Powerful | 12AM (Mon 21st Sep) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, let’s get into it, starting with Udo Shrine.
The early part of this run is a total write-off. Wednesday the 16th right through Friday the 18th, it’s just poor conditions – onshore winds, choppy water, nothing doing. There’s a pulse of short-period windswell on Friday afternoon, but it’s a blown-out mess.
Saturday the 19th and Sunday the 20th, things get big – we’re talking 11-12ft surf – but it’s still a battle with the wind. It’s cross-onshore and onshore, so the surface will be all chopped up. The energy is strong, no doubt, but it’s not clean.
Then Monday the 21st rolls in. This is the day. The winds go glassy in the morning, and the swell is still pushing 10ft with a 13-second period. That’s proper, powerful groundswell hitting from our ideal east direction. The energy is still huge. This is the standout – big, clean, and firing. The morning is rated top-notch for experienced surfers. The afternoon gets a bit of a cross-onshore breeze, so get out there early.
After that, the whole thing just fades away. From Tuesday the 22nd on, it’s small, weak, and mostly blown out. There’s a slight bump around the 26th and 27th, but it’s small, short-period, and messy. Not worth the drive.
Water temp is pretty much normal for this time of year, so a springsuit will do.
So, to wrap it up: your one real shot is Monday the 21st, early. Big, clean, and powerful. It’s a reef break though, so it can be inconsistent, and expect a crowd when it’s like that. Keep your head up.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Thu night. Warm (max 26°C on Tue night, min 24°C on Wed night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the ENE by Fri morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sun afternoon, min 22°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 9 | E 14 | E 14 | E 13 | E 13 | E 13 | E 12 | S 10 | E 8 | E 10 | E 11 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | S 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 277 | 198 | 200 | 168 | 168 | 117 | 104 | 3 | 736 | 1374 | 1412 | 4392 | 3566 | 3611 | 4232 | 4852 | 3555 | 2507 | 5 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-off | glassy | cross-on | cross |
High Tide | 9:13AM1.80m | 8:32PM1.96m | 9:59AM1.67m | 8:57PM1.87m | 11:04AM1.55m | 9:26PM1.76m | 1:20PM1.50m | 10:15PM1.64m | 3:30PM1.58m | 00:21AM1.56m | 4:06PM1.68m | 2:25AM1.61m | |||||||
Low Tide | 2:44AM0.54m | 2:39PM1.08m | 3:20AM0.63m | 3:05PM1.22m | 4:04AM0.74m | 3:34PM1.35m | 5:07AM0.84m | 4:37PM1.46m | 6:49AM0.88m | 8:06PM1.46m | 8:30AM0.81m | 9:31PM1.33m | |||||||
 |  |  | |  | |  | | | | | |  |  | | | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — |
 | 6:21 | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — |
mm | — | — | 2 | — | 1 | — | 13 | 11 | 5 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 30 | 28 | 27 | 26 | 23 | 24 | 25 | 24 | 25 | 25 | 25 | 26 | 27 | 25 | 25 | 27 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 13 | E 12 | ENE 12 | S 9 | ESE 16 | ESE 14 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | ENE 12 |
| kJ | 277 | 177 | 177 | 143 | 88 | 117 | 104 | 47 | 7 | 53 | 874 | 4392 | 3566 | 3611 | 4232 | 4852 | 3555 | 2507 | 1376 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 14 | E 14 | E 13 | E 13 | SE 8 | ESE 8 | SE 8 | SE 8 | S 9 | S 8 | S 8 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 |
| kJ | 86 | 198 | 200 | 168 | 168 | 3 | 41 | 3 | 3 | 14 | 13 | 12 | 6 | 6 | 6 | 6 | 6 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | E 16 | S 7 | S 7 | S 7 | — | SE 9 | SE 8 | S 10 | — | SE 9 | — | — | — | — | — | — | S 8 | S 8 | — |
| kJ | 78 | 1 | 1 | 1 | — | 3 | 3 | 2 | — | 3 | — | — | — | — | — | — | 6 | 6 | — |
Wind waves Height (m) Direction Period (s) | — | NE 4 | NE 5 | NE 5 | ENE 5 | E 7 | ENE 7 | ENE 8 | E 8 | E 10 | E 11 | — | — | NNE 6 | NNE 7 | — | — | — | NNE 7 |
| kJ | — | 5 | 31 | 33 | 69 | 238 | 158 | 449 | 736 | 1374 | 1412 | — | — | 176 | 311 | — | — | — | 293 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 33 | 33 | 33 | 33 | 33 | 33 | 248 | 136 | 33 | 33 | 33 | 33 | 1 | 302 | 0 | 0 | 302 | 1 |
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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