
Surf Forecasts:
Udo Shrine surf forecast from 4 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 3PM (local time) - 18ft (5.5m), 16s period, ESE swell with cross-onshore winds.
- Most powerful swell: Friday 7 Aug, 12AM (local time) - 26ft (8.0m), 16s period, ESE swell with 35,450 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 3PM (local time) - 18ft (5.5m), 16s period with ESE 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 05) at 3PM. The primary swell is predicted to be 5.5m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 8.0m 16s and forecast to arrive on Friday (Aug 07) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 12s period and expected on Tuesday (Aug 11) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 5th Aug) | 18ft (5.5m) 16s |
| Best Surf | 3PM (Wed 5th Aug) | 18ft (5.5m) 16s |
| Most Powerful | 12AM (Fri 7th Aug) | 26ft (8.0m) 16s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright crew, let’s get into it. I’m Rusty, and I’ve got the goods on what’s coming up for Udo Shrine over the next couple of weeks. First off, I’ve got to be straight with you – the start of this outlook is a brutal one. We’re looking at a massive gap of surf that just ain’t worth paddling out for from the get-go, all the way through to the morning of Thursday the 13th of August. That’s over a week of nothing but stormy, blown-out chaos.
The trouble kicks off from Tuesday the 4th with a stormy risk of thunderstorms and a stiff 12 mph onshore breeze. Swell is a jumbled 8 ft from the ESE, but the wave energy is already pumping at 3864 (moderate), and it’s just poor conditions. It only gets worse from there. Wednesday the 5th and Thursday the 6th see a massive spike in swell – we’re talking 15 ft to 26 ft from the ESE, with a long period of 16 seconds. The energy readings go ballistic, hitting 10379, 15452, and even 56584 on Thursday morning. This is way too big for this break, and with a near gale force wind (31-34 mph) smashing right onshore, it’s a complete write-off for paddling. Honestly, this setup looks more interesting for kite surfing than paddle surfing.
That pattern of dangerous, oversized swell and strong onshore winds holds through the weekend and into the start of the next week. Saturday the 8th and Sunday the 9th are still seeing 15 ft to 16 ft of S swell with near gale winds, so you’re just looking at whitewater everywhere. The energy stays in the four-digit range (13150 to 18387). It’s a mess.
We finally get a break from the size on Monday the 10th, but it’s still 26 ft to 28 ft of SE swell with a period dropping to 12-13 seconds, and the wind is still a fresh to near gale cross-onshore. The energy is still massive at 34365 to 35770. Not a chance.
By Tuesday the 11th and Wednesday the 12th, the swell finally backs down to 5 ft to 10 ft, but the wind is still a fresh cross-onshore, and the energy has dropped to 504 to 8315. It’s still poor.
Now, here’s the first real glimmer of hope. On Thursday morning, the 13th of August, we get a window. The wind goes glassy, a light 3 mph from the NNW, and it’s offshore. The swell is a clean 5 ft from the E with a period of 12 seconds. The energy is 1072 (weak to moderate). This is excellent surf conditions for experienced surfers. The water temp is around 85°F, which is about normal for the time of year – a 1°F anomaly. This is the standout of the entire forecast period, but it’s a short window. The afternoon goes back to onshore, so get your session in early.
The next true standout doesn’t show up until Wednesday morning, the 19th of August. It’s a clear morning with a dead calm 0 mph wind from the north – glassy perfection. The swell is a solid 8 ft from the E with a period of 12 seconds, and the energy is 1778 (moderate). This is also excellent for experienced surfers. The afternoon is a bit more marginal with a light cross-shore.
Between those two windows, from the 14th to the 18th, the swell is small (2 ft to 4 ft) and the wind is mostly light and cross-onshore, so it’s marginal at best. The energy is low (196 to 634). Not worth the effort.
So, to wrap it up: if you want the best of the bunch, aim for the morning of Thursday the 13th or the morning of Wednesday the 19th. Both are clean, glassy, and have decent swell. The rest of the time, you’re better off taking a long walk on the beach. This spot is inconsistent, and the crowds are likely to be there when it’s good, so expect company.
Rusty out.
Short Range ForecastHeavy rain (total 41mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 27°C on Tue night). Winds increasing (moderate winds from the NE on Tue night, near gales from the ENE by Fri morning). | Days 5-7 Weather SummaryHeavy rain (total 128mm), heaviest during Sun morning. Warm (max 29°C on Mon morning, min 28°C on Fri afternoon). Mainly gales. | |||||||||||||||||||
Tue 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | ESE 17 | E 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | SSE 16 | SSE 15 | S 15 | S 15 | S 16 | S 16 | S 16 | S 16 | SE 12 | SE 13 | SSE 12 |
Wave Graph | ||||||||||||||||||||
3864 | 6210 | 10379 | 15452 | 19400 | 30155 | 32208 | 35450 | 31053 | 16978 | 15134 | 8851 | 9028 | 11400 | 11166 | 12554 | 13872 | 19988 | 20233 | 11810 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:45PM1.97m | 10:16AM1.75m | 10:19PM1.93m | 11:29AM1.64m | 11:02PM1.88m | 1:17PM1.59m | 00:03AM1.82m | 3:25PM1.66m | 1:32AM1.80m | 4:41PM1.80m | 3:02AM1.86m | 5:29PM1.93m | ||||||||
Low Tide | 3:24PM0.72m | 4:09AM0.69m | 4:02PM0.92m | 5:05AM0.67m | 4:49PM1.14m | 6:17AM0.66m | 6:03PM1.33m | 7:45AM0.60m | 8:05PM1.43m | 9:10AM0.47m | 9:49PM1.38m | 10:18AM0.32m | 10:51PM1.26m | |||||||
— | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | |
7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | |
mm | 2 | 3 | 3 | 1 | 4 | 4 | 5 | 11 | 8 | 6 | 15 | 7 | 10 | 20 | 17 | 15 | 27 | 11 | 10 | 14 |
Temp °C | 29 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 |
Feels °C | 31 | 29 | 28 | 27 | 27 | 25 | 25 | 25 | 24 | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 22 | 25 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 17 | E 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | SE 16 | SE 16 | SSE 16 | SSE 15 | S 15 | S 15 | S 16 | S 16 | S 16 | S 16 | S 15 | S 14 | ENE 12 |
3864 | 6210 | 10379 | 15452 | 19400 | 26429 | 29479 | 27940 | 24871 | 16978 | 15134 | 8851 | 9028 | 11400 | 11166 | 12554 | 13872 | 15782 | 14132 | 1320 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 8 | — | — | — | — | ESE 16 | ESE 16 | ESE 16 | ESE 16 | E 11 | E 11 | ESE 11 | E 10 | E 10 | E 10 | E 10 | E 11 | SE 12 | SE 13 | SSE 12 |
301 | — | — | — | — | 30155 | 32208 | 35450 | 31053 | 4497 | 4461 | 4882 | 4122 | 3922 | 4308 | 5833 | 10490 | 19988 | 20233 | 11810 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 657 | 33 | 302 | 853 | 302 | 374 | 812 | 248 | 801 | 801 | 812 | 812 | 801 | 801 | 853 | 848 | 863 | 1223 | 1211 | 1211 |
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.











