Surf Forecasts:
Chialoshui surf forecast from 21 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 8AM (local time) - 6.5ft (2.0m), 18s period, E swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 8PM (local time) - 8ft (2.5m), 16s period, ENE swell with 3,131 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 8AM (local time) - 8ft (2.4m), 10s period with SW swell.
Best Forecast Surf Conditions for Chialoshui this week:
The surf forecast for Chialoshui over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 8AM. The primary swell is predicted to be 2.4m and 10s period with a secondary swell of 1.8m and 10s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Chialoshui in the next 16 days are 2.5m 16s and forecast to arrive on Tuesday (Aug 25) at 8PM. 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 5s period and expected on Thursday (Aug 27) at 2PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sat 22nd Aug) | 8ft (2.4m) 10s |
| Best Surf | 8AM (Tue 25th Aug) | 6.5ft (2.0m) 18s |
| Most Powerful | 8PM (Tue 25th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Chialoshui over the next 16 days.
Short Range ForecastHeavy rain (total 148mm), heaviest during Sun afternoon. Warm (max 28°C on Sat night, min 26°C on Sat morning). Mainly strong winds. | Days 4-6 Weather SummaryHeavy rain (total 203mm), heaviest during Tue afternoon. Warm (max 28°C on Tue morning, min 24°C on Tue night). Winds decreasing (strong winds from the WSW on Mon afternoon, light winds from the SW by Wed morning). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | SSW 9 | SW 10 | SSW 10 | SW 10 | SSW 9 | SW 9 | SSW 9 | SSW 9 | SW 9 | SW 9 | SW 9 | E 18 | E 18 | E 16 | ENE 16 | ENE 14 | ENE 13 | NE 13 | SW 9 | SSW 9 | SW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1088 | 592 | 787 | 1013 | 431 | 513 | 440 | 404 | 471 | 418 | 460 | 1537 | 2994 | 3122 | 2829 | 1517 | 950 | 680 | 481 | 348 | 446 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | on | cross-off | cross-off | off | off | off | cross-off | glassy |
High Tide | 1:56PM0.78m | 00:21AM1.19m | 4:35PM0.84m | 1:55AM1.21m | 4:53PM0.90m | 3:08AM1.27m | 5:13PM0.97m | 4:01AM1.36m | 5:34PM1.03m | 4:44AM1.44m | 5:56PM1.09m | 5:21AM1.50m | 6:19PM1.16m | ||||||||
Low Tide | 4:12PM0.76m | 8:54AM0.49m | 6:07PM0.83m | 9:58AM0.41m | 8:34PM0.82m | 10:39AM0.32m | 9:42PM0.74m | 11:12AM0.25m | 10:28PM0.65m | 11:41AM0.19m | 11:06PM0.56m | 12:09PM0.16m | 11:41PM0.47m | ||||||||
 | |  |  | |  | | | | | | | | |  |  |  | | | | | |
 | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:17 | — |
mm | 16 | 20 | 39 | 8 | 5 | 9 | 15 | 22 | 14 | 17 | 27 | 42 | 11 | 64 | 33 | 2 | 3 | 4 | 6 | 3 | 2 |
Temp °C | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 26 | 27 | 26 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 26 | 26 | 27 | 28 | 29 | 28 | 28 | 27 | 29 | 27 | 26 | 27 | 31 | 30 | 29 | 30 | 31 | 30 | 31 | 30 | 34 |
Swell 1 Height (m) Direction Period (s) | NE 8 | S 9 | ESE 10 | SSW 10 | SSW 9 | ESE 10 | ESE 10 | SSW 9 | SE 9 | SE 8 | E 19 | SSW 9 | E 18 | E 16 | ENE 16 | ENE 14 | ENE 13 | NE 13 | NE 12 | SSW 9 | NNE 12 |
| kJ | 17 | 495 | 10 | 553 | 431 | 10 | 19 | 404 | 21 | 33 | 266 | 480 | 2994 | 3122 | 2829 | 1517 | 950 | 680 | 416 | 348 | 171 |
Swell 2 Height (m) Direction Period (s) | E 15 | ENE 8 | ENE 8 | ESE 10 | ESE 10 | NE 9 | NE 9 | ESE 10 | E 14 | E 14 | SE 8 | E 18 | SSW 9 | NE 8 | SW 9 | SW 9 | NE 6 | SW 10 | ENE 14 | NE 12 | ENE 13 |
| kJ | 5 | 6 | 7 | 10 | 10 | 3 | 3 | 9 | 15 | 66 | 24 | 1537 | 313 | 338 | 253 | 253 | 10 | 207 | 39 | 347 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 8 | NE 8 | SE 7 | — | E 14 | ENE 9 | NE 6 | E 14 | NE 6 | NE 7 | SSW 9 | ENE 7 | ENE 7 | NE 19 | E 15 | SE 10 | ENE 13 | SE 10 |
| kJ | — | — | — | 7 | 3 | 2 | — | 16 | 8 | 6 | 58 | 7 | 105 | 327 | 134 | 62 | 58 | 17 | 4 | 35 | 14 |
Wind waves Height (m) Direction Period (s) | SSW 9 | SW 10 | SSW 10 | SW 10 | W 4 | SW 9 | SSW 9 | WSW 4 | SW 9 | SW 9 | SW 9 | — | — | — | — | — | SW 10 | WSW 4 | SW 9 | W 5 | SW 10 |
| kJ | 1088 | 592 | 787 | 1013 | 9 | 513 | 440 | 22 | 471 | 418 | 460 | — | — | — | — | — | 320 | 16 | 481 | 50 | 446 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 137 | 338 | 338 | 33 | 352 | 318 | 451 | 33 | 137 | 33 | 33 | 0 | 0 | 545 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in South Taiwan | |||||||||||||||||||||
Best forecast wave conditions in Taiwan | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Chialoshui surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Chialoshui Surf forecast
The above surf forecast table for Chialoshui provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Chialoshui can be found by selecting the local surf guide option on the grey menu. Our Chialoshui 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 (Chialoshui) 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 Chialoshui 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.
Chialoshui is 8 km (5 miles) from Changlotsun. If you plan a holiday in South Taiwan, look for hotels and other accommodation in Changlotsun. Changlotsun has rooms for a wide range of budgets as well as car hire and transport links.
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