Udo Shrine Surf Break

Lat Long: 31.63° N 131.46° E

Udo Shrine Surf Forecast and Surf Report

Issued: 8 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Udo Shrine sea temperature is
28.5° C
0.0° 

Udo Shrine surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Udo Shrine surf forecast from 15 Aug 2026:

  • Best quality surf: Monday 17 Aug, 12AM (local time) - 3.5ft (1.0m), 10s period, E swell with glassy winds.
  • Most powerful swell: Thursday 20 Aug, 9PM (local time) - 10ft (3.0m), 9s period, SE swell with 1,550 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 6AM (local time) - 2ft (0.6m), 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 Sunday (Aug 16) at 6AM. The primary swell is predicted to be 0.6m and 9s period. 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 3.0m 9s and forecast to arrive on Thursday (Aug 20) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Friday (Aug 21) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sun 16th Aug)2ft (0.6m) 9s
Best Surf12AM (Mon 17th Aug)3.5ft (1.0m) 10s
Most Powerful 9PM (Thu 20th Aug)10ft (3.0m) 9s

Table - best surf conditions forecast for Udo Shrine over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s have a look at what’s cooking at Udo Shrine. The next couple of weeks are a real mixed bag, but there’s a proper monster lurking at the end that’s got my heart racing.

Right now, things are flat out depressing. The surf is small and weak for the first week, with the combined energy barely making a dent. Winds are mostly lousy, onshore or cross-onshore, and the water temp is about average for this time of year, nothing strange there. This is a reef break, and it’s inconsistent, so waiting for something good here is normal. You’ll be sitting through a lot of nothing before it wakes up.

The first real signs of life don’t show up until Monday the 24th. The wind finally kicks around to a light offshore from the WSW, and we start seeing a proper groundswell with a long 13-second period. Swell size is only around 4ft to 4ft, but the wave energy is climbing into the moderate range. This is when it starts to get clean and surfable. It’s still not gonna blow you away, but it’s the best we’ve seen so far.

From Tuesday the 25th through Thursday the 27th, the swell really builds. We’re talking 6ft to 8ft with a very long period of 14 to 15 seconds. The energy is cranking into the strong territory (1203 to 3346). This is a proper groundswell, and at a reef like Udo Shrine, that’s a good thing – it’ll hold shape and line up. The catch is the wind is mostly cross-onshore or onshore, so it’s going to be a bit textured, but with that much power, there’ll still be some punchy waves. Crowds are often an issue here, so expect some company.

Now, the standout. Friday the 28th of August. This is the one you mark on the calendar. The combined swell energy hits a staggering 9227 – that’s a massive amount of water moving. We’re looking at a solid 15ft swell from the ESE with an insane 16-second period. This is very long-period groundswell. The wind is light cross-onshore or onshore, but the sheer power of this swell will be undeniable. This is expert-only territory, well over 8ft. For those with the skills, this is gonna be a proper session, but the reef might get a bit unruly with lines breaking straight in sections. Crowds will be inevitable.

Saturday the 29th still has decent size (16ft in the morning) but the wind strengthens and the energy drops off a cliff by the afternoon. After that, we’re back to small, weak, and wind-affected junk through the end of the forecast.

So, for the best on offer, it’s hands-down the 28th of August. That’s the day for the big dogs. The 24th of August is your backup for a cleaner, smaller session if the big stuff is too much.

Stay safe out there.

Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Sun morning, min 26°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 104mm), heaviest during Thu afternoon. Warm (max 28°C on Fri morning, min 25°C on Thu afternoon). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
2
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
8
0.6
S
8
1
E
10
1
E
10
1.1
E
10
1
E
10
0.9
E
9
0.9
E
9
0.9
E
9
0.9
E
8
1.3
E
9
1.6
E
6
1.3
SE
7
2.1
ESE
7
2.2
ESE
8
3
SE
9
1.7
S
10
1.6
S
10
1.5
S
10
Wave Graph
Metric surfscale
Energy kJ
49
50
206
194
235
183
133
130
127
108
247
202
161
495
572
1464
563
494
398
Wind (km/h)
5
SE
5
SE
10
SE
5
SE
10
ENE
10
SE
5
SE
15
ENE
15
E
15
ENE
20
ENE
20
E
20
NE
25
E
25
E
25
ESE
15
SE
20
SE
20
SSE
Wind State
cross-on
cross-on
cross-on
glassy
on
cross
glassy
on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross
cross
cross
High Tide
8:11AM2.04m
8:36PM2.04m
8:53AM1.91m
9:02PM1.99m
9:38AM1.76m
9:28PM1.93m
10:30AM1.62m
9:55PM1.86m
11:45AM1.51m
10:29PM1.78m
2:13PM1.49m
11:25PM1.69m
Low Tide
2:09AM0.67m
2:24PM0.52m
2:46AM0.65m
2:54PM0.73m
3:25AM0.68m
3:21PM0.94m
4:07AM0.74m
3:49PM1.13m
4:58AM0.81m
4:22PM1.30m
6:09AM0.87m
5:30PM1.44m
light rain
part cloud
clear
part cloud
clear
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
5:39
5:41
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:55
6:54
6:53
6:52
6:52
 mm
1
1
3
1
7
11
16
32
19
7
8
14
Temp °C
26
28
28
26
27
28
27
28
28
27
27
27
26
27
26
27
28
27
27
Feels °C
29
30
30
29
31
31
31
31
31
30
29
29
28
28
28
29
31
29
30
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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