Udo Shrine Surf Break

Lat Long: 31.63° N 131.46° E

Udo Shrine Surf Forecast and Surf Report

Issued: 8 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Udo Shrine sea temperature is
28.7° C
0.2° 

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 21 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 6PM (local time) - 18ft (5.5m), 16s period, SE swell with onshore winds.
  • Most powerful swell: Tuesday 25 Aug, 9PM (local time) - 20ft (6.0m), 15s period, SE swell with 16,639 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 6PM (local time) - 18ft (5.5m), 16s period with SE 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 Tuesday (Aug 25) at 6PM. The primary swell is predicted to be 5.5m and 16s period with a secondary swell of 0.4m and 15s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Udo Shrine in the next 16 days are 6.0m 15s and forecast to arrive on Tuesday (Aug 25) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 9s period and expected on Tuesday (Aug 25) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 25th Aug)18ft (5.5m) 16s
Best Surf 6PM (Tue 25th Aug)18ft (5.5m) 16s
Most Powerful 9PM (Tue 25th Aug)20ft (6.0m) 15s

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


The Lowdown

Alright, let’s break down what’s coming up. The only spot in the mix for the next 16 days is Udo Shrine, a reef break. It’s an inconsistent wave, so don’t expect it to be firing all the time, and when it does, it can get pretty packed.

The first stretch is a total washout. Starting Saturday, August 22nd, through the early part of the next week, we’ve got tiny, weak swell and cross-onshore breezes. The wave energy is low (179) on Saturday, and the water temp is about normal for the season. Not worth getting wet.

Things start to get a pulse on Monday, August 24th afternoon. The swell bumps up to 6ft from the SE, with a 17-second period – that’s a long-period groundswell, which usually means more power but can make beach breaks close out. The combined energy is moderate (2280), but the wind is onshore, keeping it messy. Not a standout.

Tuesday, August 25th, is a big one. We’re looking at 16ft to 18ft SE swell, but the wind is cranking onshore at 22-25 mph. The energy is very strong (12718-14999), but it’s going to be a lumpy, wind-chopped mess. This is expert-only, and honestly, with those winds, it’s more of a kite-surfing show than a paddle-surfing one.

The best of the near-term window pops up on the morning of Thursday, September 4th. The swell drops to a manageable 5ft from the east, with a 9-second period. The wind goes glassy – light and variable, only 3 mph. The combined energy is moderate (485). That’s clean, glassy conditions on a reef, which is a recipe for some fun, lined-up waves. It’s a real standout for the period, but remember, this is a long-range call, so it’s a bit less certain.

Looking further out, the morning of Tuesday, September 2nd, looks like a beast. Swell is predicted at 23ft from the east, with a very long 14-second period, and the energy is off the charts (17855). The wind is cross-onshore, but the forecast actually says the swell is too big for this break. That’s a massive, dangerous wave. Only for the most experienced, and even then, it’s a maybe.

Overall, the pick of the whole run is that glassy Thursday morning on the 4th of September. It’s the only time the wind and swell truly align for a clean, user-friendly session. The rest of the window is either too small, too windy, or too big.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Fri night. Warm (max 28°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 87mm), heaviest during Wed night. Warm (max 28°C on Tue morning, min 26°C on Mon night). Winds increasing (moderate winds from the NE on Mon night, near gales from the ESE by Tue night).

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
0
0
0
1
0
0
0
!
0
0
0
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
9
0.9
SSE
8
0.8
S
8
0.7
S
8
0.7
E
10
0.7
E
11
0.6
SE
12
0.7
SE
20
1.9
SE
17
3.5
SE
16
5
SE
16
5.5
SE
16
6
SE
15
5.5
SSE
12
4.5
SSE
11
3.5
SSE
9
3
SSE
9
3
SSE
9
2.4
SSE
9
Wave Graph
Metric surfscale
Energy kJ
126
118
86
68
98
119
122
392
2062
5891
12620
14929
16291
8558
4853
1888
1405
1599
867
Wind (km/h)
5
E
15
E
10
E
10
ENE
15
NNE
15
ESE
10
E
20
NE
20
ENE
20
NE
35
NE
40
NE
45
E
45
SE
40
SE
45
SSE
30
SSE
25
SSE
25
SE
Wind State
on
cross-on
on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
on
cross-on
cross-on
cross
cross
cross
cross
cross-on
High Tide
11:25PM1.69m
4:05PM1.59m
1:09AM1.65m
4:44PM1.70m
2:48AM1.69m
5:13PM1.80m
3:51AM1.79m
5:40PM1.88m
4:38AM1.90m
6:05PM1.95m
5:17AM2.00m
6:29PM2.01m
Low Tide
7:47AM0.86m
8:18PM1.48m
9:11AM0.77m
9:49PM1.39m
10:07AM0.64m
10:34PM1.27m
10:49AM0.51m
11:09PM1.14m
11:24AM0.40m
11:39PM1.02m
11:56AM0.34m
00:09AM0.90m
rain showers
clear
clear
clear
thunderstorm
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:43
5:43
5:45
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:51
6:49
6:47
6:46
6:45
6:45
 mm
2
2
1
4
15
10
12
27
11
7
23
Temp °C
27
28
28
27
28
28
27
28
28
27
28
28
28
27
27
27
28
28
27
Feels °C
32
31
31
32
32
31
31
29
29
29
27
27
27
25
26
25
30
30
29
  • 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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