Surf Forecasts:
The Core surf forecast from 15 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 8PM (local time) - 5.5ft (1.7m), 8s period, ENE swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 2PM (local time) - 7ft (2.1m), 9s period, ENE swell with 660 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2AM (local time) - 1.5ft (0.4m), 10s 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 Monday (Aug 17) at 2AM. The primary swell is predicted to be 0.4m and 10s 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 2.1m 9s and forecast to arrive on Thursday (Aug 20) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Saturday (Aug 22) at 8AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 17th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 8PM (Wed 19th Aug) | 5.5ft (1.7m) 8s |
| Most Powerful | 2PM (Thu 20th Aug) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for The Core over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s cut to it: the next couple of weeks at The Core are mostly a waiting game. There’s not much early, but the back half of the month starts to show some life, especially that last Friday. So don't give up on it.
The start is dead. From the 16th through the 18th, we’re talking ankle-biters. Swell is under 2ft, with weak, short-period energy (40-84). The wind is cross-onshore, so you’re looking at rippled, messy waves. Not worth your time.
A little bump comes through on the 19th and 20th, with swell reaching 4ft to 6ft and energy getting into the moderate range (143-554). But the period is short, and the wind is still all over the place. Still not a good call. Friday the 21st afternoon goes glassy, but the swell drops right back to just 2ft. It’s rideable, but nothing to write home about.
Then we hit a real flat patch from the 22nd to the 23rd. Swell is tiny, energy is basically nothing (6-36). A couple of days with zero surf on the cards.
Things start to turn on the 24th. We see a long-period groundswell from the east, with the period stretching out to 16 seconds. The heights are small, around 2ft to 3ft, but the energy is building (216-315). Wind is cross-onshore, so it’s not clean yet, but there’s a pulse.
From the 25th, it starts to fire up. Swell builds to 4ft on Tuesday, then up to 5ft by Wednesday the 26th. Period holds at 15-16 seconds and the energy gets strong, jumping from 701 to a peak of 1319 on Wednesday morning. This is proper groundswell, but the cross-shore wind will add some chop. It’s close, but not quite there.
The best window is the 27th and 28th. Swell sits at 5ft, period hangs at 15-16 seconds, and the energy is strong (1078-1229). And the big one – Friday the 28th afternoon goes glassy. That’s your moment. The Core is inconsistent, so be patient. But when a set comes through with that long-period east swell and clean conditions, it’ll be well worth the wait. This is the standout, but at 5ft, it’s only for the experienced crew.
After that, it’s a fade. The 29th sees the swell drop and onshore winds return. The 30th and 31st are back to average, with weaker energy (567-612) and shorter periods. The last day, Monday the 31st, goes glassy again but the swell is down to 4ft and the energy is fading. Maybe a fun one to finish, but the days before are where it’s at.
So mark the 28th on your calendar. That’s the one. Everything else is just waiting for it.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Tue afternoon. Warm (max 31°C on Sun morning, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 24mm), heaviest during Wed afternoon. Warm (max 31°C on Thu morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
AM | 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) | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 6 | E 6 | E 6 | E 7 | ENE 7 | ENE 8 | ENE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | E 14 | ESE 10 |
Wave Graph | |||||||||||||||||||||
46 | 42 | 40 | 39 | 39 | 41 | 64 | 144 | 83 | 126 | 242 | 422 | 530 | 314 | 100 | 64 | 46 | 27 | 12 | 4 | 11 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross | cross | on | cross-on | glassy | on | cross | cross-off | cross-on | glassy | off | cross-on | cross-on | glassy |
High Tide | 8:15AM1.41m | 8:47PM1.35m | 8:58AM1.27m | 9:13PM1.34m | 9:45AM1.13m | 9:39PM1.32m | 10:41AM0.99m | 10:10PM1.28m | 12:16PM0.89m | 10:50PM1.24m | 11:57PM1.20m | 5:55PM0.99m | 1:38AM1.20m | ||||||||
Low Tide | 2:33PM0.35m | 2:54AM0.44m | 2:58PM0.49m | 3:39AM0.46m | 3:19PM0.62m | 4:31AM0.49m | 3:36PM0.74m | 5:38AM0.52m | 3:43PM0.83m | 7:12AM0.53m | 8:50AM0.48m | 6:52PM0.99m | |||||||||
5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | |
mm | — | 2 | 1 | — | — | — | 3 | 6 | 3 | 5 | 9 | 3 | 1 | 4 | — | — | — | 2 | — | 4 | 1 |
Temp °C | 31 | 31 | 28 | 31 | 31 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 31 | 30 | 27 | 31 | 30 | 28 | 31 | 31 | 28 |
Feels °C | 34 | 35 | 34 | 35 | 35 | 34 | 33 | 33 | 31 | 32 | 33 | 32 | 35 | 34 | 31 | 35 | 36 | 33 | 35 | 35 | 34 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | S 8 | S 8 | SSE 7 | ENE 6 | ENE 10 | ENE 10 | E 6 | E 7 | ENE 7 | ENE 8 | ENE 9 | NE 9 | NE 8 | SSE 9 | SSE 9 | SSE 9 | S 9 | E 14 | SSW 9 |
30 | 21 | 65 | 29 | 15 | 11 | 20 | 19 | 83 | 126 | 242 | 422 | 530 | 314 | 100 | 624 | 510 | 567 | 904 | 4 | 29 | |
Swell 2 Height (m) Direction Period (s) | SSW 8 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 7 | SSE 7 | ESE 6 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | E 9 | E 9 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | ESE 10 |
20 | 42 | 40 | 39 | 39 | 41 | 18 | 10 | 28 | 12 | 12 | 11 | 26 | 240 | 56 | 64 | 46 | 27 | 12 | 2 | 11 | |
Swell 3 Height (m) Direction Period (s) | ENE 11 | SSW 8 | ESE 11 | SSE 7 | SSW 8 | SSE 7 | SSW 8 | ESE 11 | ENE 10 | ENE 9 | S 8 | S 8 | SSW 11 | SSE 9 | SSW 9 | E 8 | E 8 | NE 7 | — | — | E 9 |
46 | 23 | 13 | 10 | 7 | 18 | 7 | 11 | 18 | 17 | 1 | 1 | 11 | 69 | 8 | 31 | 10 | 19 | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 4 | E 3 | — | ENE 6 | E 6 | — | — | N 5 | — | N 6 | S 9 | SSE 10 | — | — | — | S 9 | S 8 | SSE 8 |
— | — | — | 1 | 1 | — | 64 | 144 | — | — | 38 | — | 11 | 180 | 289 | — | — | — | 1212 | 908 | 322 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 287 | 287 | 0 | 287 | 621 | 0 | 621 | 1183 | 833 | 833 | 20 | 0 | 20 | 16 | 0 | 6 | 0 | 34 | 56 | 56 | 20 |
Best forecast wave conditions in North Taiwan | |||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||
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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.











