Surf Forecasts:
Chialoshui surf forecast from 20 Jul 2026:
- Best quality surf: Monday 20 Jul, 11PM (local time) - 3ft (0.9m), 7s period, SW swell with offshore winds.
- Most powerful swell: Monday 27 Jul, 5PM (local time) - 13ft (4.0m), 10s period, ENE swell with 2,990 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 11PM (local time) - 3ft (0.9m), 7s 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 Monday (Jul 20) at 11PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.2m and 8s 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 4.0m 10s and forecast to arrive on Monday (Jul 27) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Monday (Jul 27) at 2AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 20th Jul) | 3ft (0.9m) 7s |
| Best Surf | 11PM (Mon 20th Jul) | 3ft (0.9m) 7s |
| Most Powerful | 5PM (Mon 27th Jul) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Chialoshui over the next 16 days.
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Warm (max 30°C on Thu afternoon, min 27°C on Thu night). Winds increasing (light winds from the ESE on Thu night, strong winds from the NNE by Sun morning). | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | ENE 9 | SW 7 | ENE 9 | ENE 11 | NE 10 | ENE 10 | ENE 10 | ENE 10 | E 11 | ESE 10 | E 11 | ESE 10 | E 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 67 | 55 | 62 | 75 | 25 | 24 | 32 | 28 | 17 | 16 | 25 | 28 | 41 | 38 | 38 | 224 | 607 | 1107 | 943 | 2891 |
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 | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:45PM1.21m | 10:59AM1.02m | 11:30PM1.21m | 12:16PM0.89m | 00:24AM1.22m | 2:09PM0.83m | 1:26AM1.23m | 3:54PM0.85m | 2:30AM1.27m | 4:53PM0.90m | 3:27AM1.32m | 5:30PM0.96m | 4:16AM1.39m | |||||||
Low Tide | 4:17PM0.44m | 5:04AM0.54m | 4:48PM0.56m | 6:23AM0.55m | 5:23PM0.65m | 7:55AM0.52m | 6:13PM0.73m | 9:16AM0.45m | 7:30PM0.78m | 10:14AM0.37m | 8:51PM0.78m | 10:57AM0.29m | 9:52PM0.74m | |||||||
 |  |  | | | | | | | | | | | | | | |  | |  | |
 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — |
 | 6:40 | — | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 12 |
Temp °C | 30 | 28 | 29 | 29 | 28 | 29 | 30 | 28 | 29 | 30 | 29 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 28 | 29 |
Feels °C | 31 | 31 | 32 | 30 | 30 | 31 | 32 | 31 | 31 | 32 | 33 | 32 | 32 | 30 | 31 | 31 | 28 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SW 7 | SW 7 | ENE 9 | SW 7 | ENE 9 | SW 7 | ENE 9 | NE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ESE 10 | E 11 | ESE 10 | E 11 |
| kJ | 19 | 18 | 18 | 18 | 25 | 24 | 17 | 17 | 16 | 7 | 16 | 28 | 41 | 38 | 38 | 38 | 607 | 1107 | 943 | 2891 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ENE 10 | ENE 9 | SE 8 | ENE 9 | SW 7 | ENE 9 | SW 7 | SW 7 | SW 7 | SE 4 | ESE 5 | SSW 7 | SW 7 | ENE 10 | SW 7 | SW 7 |
| kJ | 8 | 7 | 7 | 6 | 18 | 17 | 2 | 28 | 12 | 16 | 7 | 7 | 7 | 5 | 8 | 5 | 2 | 10 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | S 8 | S 7 | SE 8 | SE 8 | SE 4 | NE 14 | ENE 13 | ENE 12 | ENE 11 | ENE 8 | ESE 10 | SW 7 | ESE 11 | E 9 | S 9 | SW 7 | — | — |
| kJ | 3 | 3 | 1 | 1 | 2 | 2 | 1 | 7 | 17 | 15 | 25 | 7 | 10 | 7 | 11 | 7 | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | WSW 3 | — | SW 7 | — | — | — | — | — | — | NE 4 | NE 4 | E 11 | NE 5 | NNE 6 | NE 7 | NNE 7 |
| kJ | 67 | 55 | 62 | 75 | 2 | — | 32 | — | — | — | — | — | — | 10 | 21 | 224 | 94 | 149 | 821 | 637 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 921 | 16 | 16 | 0 | 0 | 16 | 16 | 318 | 67 | 908 | 699 | 16 | 845 | 305 | 682 | 682 | 397 |
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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