Udo Shrine Surf Break

Lat Long: 31.63° N 131.46° E

Udo Shrine Surf Forecast and Surf Report

Issued: 2 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Udo Shrine sea temperature is
28.4° C
0.1° 

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: Friday 21 Aug, 12AM (local time) - 6ft (1.9m), 9s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Friday 21 Aug, 9PM (local time) - 7ft (2.2m), 11s period, S swell with 1,116 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 3AM (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 3AM. The primary swell is predicted to be 0.6m and 9s period. 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 2.2m 11s and forecast to arrive on Friday (Aug 21) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 10s period and expected on Sunday (Aug 16) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 16th Aug)2ft (0.6m) 9s
Best Surf12AM (Fri 21st Aug)6ft (1.9m) 9s
Most Powerful 9PM (Fri 21st Aug)7ft (2.2m) 11s

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


The Lowdown

Alright, Rusty here. Let's break down what's on the table for the next couple of weeks.

We've got a pretty slow start for the next week or so with small, messy surf, but don't write it off just yet. Things start to look up around the 24th and 25th, and that's where the real gold is hiding. The water temp is sitting right about average for this time of year at 83°F, so no surprises there.

The first few days are a bit of a write-off. Saturday the 15th through till about Friday the 21st, we're looking at small waves, mostly under 3ft, with cross-onshore winds messing up the surface. The swell energy is weak to moderate (around 72 to 317 combined energy), but honestly, it's not worth paddling out for. The period is short, under 10 seconds, and Saturday the 17th's morning glass-off only gives us tiny 1ft surf – not enough to get excited about.

Now, Thursday the 21st sees a jump in size to 7ft from the SSE, but it's still a bit rough with increasing cross-shore winds and a period of 10 seconds. The energy is strong (over 1000 combined energy), but it's marginal at best, with a risk of thunderstorms. The wind isn't helping, and it's more of a kite-surfing setup than a clean paddle session.

The standout period is Monday the 24th and Tuesday the 25th. This is where it gets good. On Monday the 24th, we get a solid 5ft to 6ft ESE groundswell with a super long period of 17-18 seconds. The morning is glassy, and the afternoon has clean cross-off winds. The swell energy is high (over 1500 combined energy), which means real power. This is a reef break, so that long-period groundswell will wrap in nicely, giving well-shaped, clean lines. It's definitely better for experienced surfers, as the size and power will be challenging for beginners.

Tuesday the 25th keeps the goods coming with 7ft E swell and a 13-second period. The morning is glassy again, offering pristine conditions. The energy is still very strong (1450 combined energy). This is your best bet for the whole forecast – big, clean, and powerful. Again, this is for the experienced crew.

From Wednesday the 26th onwards, the swell starts to drop back, and the wind becomes more cross-shore or cross-off. The energy drops (853 on the 26th morning, down to 166 by the 28th), and while the conditions remain clean at times, the size and quality fade. The very end of the month might see a little spike in period on the 30th, but with a strong cross-off wind and marginal conditions, it's not a standout.

So, to wrap it up: the first week is a write-off. The real action is on Monday the 24th and Tuesday the 25th at Udo Shrine, with powerful, clean groundswell for the experienced surfer. Everything else is just filler.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 28°C on Sun morning, min 26°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 38mm), heaviest during Thu night. Warm (max 29°C on Wed morning, min 27°C on Tue morning). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
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
0
0
1
1
0
1
0
0
0
0
0
0
0
0
3
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
9
0.7
S
8
0.6
S
8
0.6
S
8
1
E
10
1
E
10
0.4
SE
11
1
E
10
0.9
E
9
0.9
E
9
1
E
9
1.1
E
8
1.5
E
8
1.5
E
7
1.1
E
7
1.2
SE
8
1.4
SE
8
1.9
SSE
9
2.2
SSE
10
2.2
S
10
2.1
S
11
Wave Graph
Metric surfscale
Energy kJ
74
68
49
50
206
194
31
183
133
130
157
173
295
233
117
201
236
573
1031
1081
992
Wind (km/h)
5
ESE
15
SE
5
SSE
10
ESE
15
ESE
10
SSE
5
NNE
10
SE
0
NE
15
NE
20
NE
15
NE
15
ENE
15
E
10
SE
20
SE
20
SE
15
S
15
SSE
15
SE
10
SSE
Wind State
cross-on
cross-on
cross
cross-on
cross-on
cross
glassy
cross-on
glassy
on
on
on
on
on
cross
cross
cross
cross-off
cross
cross
cross
High Tide
8:10PM2.07m
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
1:52PM0.32m
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
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rain showers
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thunderstorm
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
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
3
2
2
6
8
4
13
3
2
2
Temp °C
27
27
26
28
28
27
28
28
27
28
28
27
29
29
28
28
28
27
28
29
27
Feels °C
29
29
29
30
30
30
31
31
31
30
29
30
32
32
32
31
31
30
32
32
31
  • Map Icons:
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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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