The Core Surf Break

Lat Long: 24.76° N 121.81° E

The Core Surf Forecast and Surf Report

Issued: 7 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Core sea temperature is
28.6° C
0.2° 

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


The Core surf forecast from 21 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 11PM (local time) - 10ft (3.0m), 9s period, ESE swell with cross-shore winds.
  • Most powerful swell: Tuesday 25 Aug, 5PM (local time) - 7ft (2.2m), 17s period, E swell with 2,840 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 5AM (local time) - 2ft (0.6m), 8s period with ENE swell.

Best Forecast Surf Conditions for The Core this week:

The surf forecast for The Core over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 5AM. The primary swell is predicted to be 0.6m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Core in the next 16 days are 2.2m 17s and forecast to arrive on Tuesday (Aug 25) at 5PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Tuesday (Aug 25) at 2AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 22nd Aug)2ft (0.6m) 8s
Best Surf11PM (Sun 23rd Aug)10ft (3.0m) 9s
Most Powerful 5PM (Tue 25th Aug)7ft (2.2m) 17s

Table - best surf conditions forecast for The Core over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s get into it. The Core is the only show in town for the next couple weeks, and it’s got a bit of a split personality. We’ve got a run of small, onshore junk to start, then a beautiful window of clean, powerful groundswell. After that, it gets messy and big again.

First up, Saturday the 22nd and Sunday the 23rd are pretty much a write-off. Tiny, weak swell – you’re looking at energy levels of just 53 and 15 on Saturday, and a bit of a jump on Sunday but with cross-shore winds. The waves are small and messy, with a cross-onshore breeze. Not worth paddling out for.

Monday the 24th gets interesting, but not for the faint of heart. The swell jumps to 12 ft from the ESE, with a combined energy of 1953 – that’s a lot of power. But the report says it’s too big for this break, and we’ve got a moderate cross-shore chop. That’s more of a kite-surfing setup than a paddle session unless you’re a real charger. The afternoon drops to 8 ft but the conditions are still marginal.

Now, here’s the real highlight. Tuesday the 25th is the one to circle. The Core lights up. We’ve got a 7 ft to 7 ft east swell, and the period? 17 seconds. That’s a very long period groundswell, which will mean proper, powerful lines. The best part? Glassy conditions. The wind goes glass on Tuesday morning and holds through the afternoon. The energy is huge – 2643 and 3110 – and the report calls it “excellent surf for experienced surfers.” This is a standout session. The swell direction is east, and the optimum for this spot is NE, so it’s a good match. The only caveat is that with a period this long, the waves might rake a bit too fast at the beach, but with glassy conditions, it’ll be a dream. Expect a crowd – it’s “sometimes” busy, but for a session like this, it’ll be worth it.

Wednesday the 26th still has some quality. The morning is a bit cross-on, but the afternoon gets glassy again. The swell drops to 6 ft with a 13-second period and energy of 1186. Still good for experienced surfers, but not as perfect as Tuesday.

Thursday the 27th morning is glassy with a 5 ft, 12-second swell from the NE. Energy is 713. The report says “expect very good surf conditions.” That’s a solid session, but the afternoon gets a bit funky with an onshore wind.

From Friday the 28th onward, things start to fade. The swell drops, the wind goes cross-on, and the energy falls off. By Saturday the 29th, it’s back to tiny, weak junk. There’s a gap of poor surf from the 29th through the 31st, with small, weak swells and cross-on winds.

Then, into the first week of September, the swell builds again, but it’s not pretty. The wind is onshore or cross-on, and the swell is big – 7 ft to 8 ft – but with moderate to strong onshore winds, it’s going to be choppy and blown out. The energy is there (1300 to 2171), but the quality is poor. This is another stretch that’s more for the wind sports crew. The Core is exposed, and with the wind howling from the north, it’ll be a mess.

So, the absolute standout is Tuesday the 25th of August. Get on it if you can. The water temp is about average for this time of year, nothing unusual. The second best window is the glassy periods on the 26th and 27th.

Stay salty,
Rusty

Short Range Forecast

Heavy rain (total 87mm), heaviest during Mon morning. Warm (max 31°C on Sat morning, min 25°C on Mon afternoon). Winds increasing (calm on Fri night, fresh winds from the ESE by Sun night).

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 31°C on Wed morning, min 24°C on Mon night). Wind will be generally light.

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
2
1
0
1
!
2
4
4
5
3
2
4
3
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
ENE
7
0.6
ENE
8
0.4
NE
6
1.1
SE
9
1.1
SE
9
1.8
ESE
7
2.5
SE
9
3.5
ESE
9
2.5
ESE
8
1.4
E
17
2
E
17
2.2
E
17
2.2
E
16
2
ENE
14
1.8
ENE
13
1.8
NE
12
1.6
NE
12
1.6
NE
11
1.5
NNE
11
Wave Graph
Metric surfscale
Energy kJ
32
43
9
172
206
353
951
1895
794
1064
2381
2840
2389
1598
1186
948
699
615
521
Wind (km/h)
5
SW
10
ENE
5
E
5
NNW
10
SE
10
ENE
20
ESE
20
SE
15
SSE
10
SSW
5
NE
5
NNW
10
NW
10
N
5
E
5
WNW
5
ENE
5
ENE
5
W
Wind State
glassy
cross-on
cross-on
glassy
cross
cross-on
cross
cross
cross-off
off
glassy
glassy
cross
cross-on
glassy
cross-off
glassy
on
cross-off
High Tide
11:57PM1.20m
5:55PM0.99m
1:38AM1.20m
5:28PM1.05m
3:00AM1.25m
5:41PM1.10m
3:57AM1.33m
5:58PM1.15m
4:42AM1.41m
6:17PM1.20m
5:21AM1.47m
6:37PM1.25m
Low Tide
8:50AM0.48m
6:52PM0.99m
9:54AM0.40m
9:18PM0.96m
10:38AM0.32m
10:13PM0.88m
11:13AM0.25m
10:51PM0.79m
11:43AM0.20m
11:26PM0.70m
12:12PM0.17m
11:59PM0.61m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
heavy rain
thunderstorm
rain showers
light rain
light rain
light rain
rain showers
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:30
5:30
5:31
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:21
6:20
6:19
6:19
6:17
6:16
 mm
6
2
5
14
1
7
24
21
7
3
1
3
1
Temp °C
27
31
28
27
30
26
26
26
26
25
27
27
26
31
31
27
31
31
27
Feels °C
33
35
33
32
34
30
26
28
27
28
32
31
30
34
35
33
35
35
33
  • Map Icons:
  • Break
  • 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 The Core Surf forecast

The above surf forecast table for The Core provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Core can be found by selecting the local surf guide option on the grey menu. Our The Core 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 (The Core) 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 The Core 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.

Are you planning a holiday in North Taiwan? If you are looking for accommodation near The Core, camping, hotels and holiday cottages in North Taiwan, consider staying in I-lan which is 6 km (4 miles) away. Other places in and around North Taiwan where you can find information about places to rent, and car hire include Gueishan which is 31 km (19 miles) away, Sindian, Sijhih and Jhonghe.

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