Surf Forecasts:
Alkimos surf forecast from 15 Sep 2026:
- Best quality surf: Monday 21 Sep, 2AM (local time) - 7ft (2.1m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 8AM (local time) - 11ft (3.5m), 15s period, WSW swell with 5,687 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 8AM (local time) - 5ft (1.6m), 14s period with WSW swell.
Best Forecast Surf Conditions for Alkimos this week:
The surf forecast for Alkimos over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 8AM. The primary swell is predicted to be 1.6m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Alkimos in the next 16 days are 3.5m 15s and forecast to arrive on Saturday (Sep 19) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Sep 17) at 2AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 16th Sep) | 5ft (1.6m) 14s |
| Best Surf | 2AM (Mon 21st Sep) | 7ft (2.1m) 16s |
| Most Powerful | 8AM (Sat 19th Sep) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Alkimos over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 29°C on Wed afternoon, min 16°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NW by Fri night). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun morning. Warm (max 22°C on Mon morning, min 15°C on Sat night). Winds decreasing (fresh winds from the W on Sat morning, light winds from the WNW by Sun morning). | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 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) | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 17 | WSW 18 | W 13 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 16 | WSW 15 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 870 | 561 | 616 | 553 | 447 | 326 | 313 | 877 | 4000 | 4957 | 3448 | 1849 | 1028 | 824 | 2206 | 2615 | 2682 | 1972 | 1191 | 996 | 1138 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-off |
High Tide | 11:27PM0.59m | 11:54PM0.57m | 00:33AM0.55m | 3:21AM0.52m | 5:15AM0.53m | 6:17AM0.54m | |||||||||||||||
Low Tide | 2:06PM0.17m | 1:57PM0.14m | 2:13PM0.12m | 2:32PM0.10m | 2:49PM0.10m | 3:02PM0.10m | 3:11PM0.11m | ||||||||||||||
 |  |  | | |  | |  |  | | | |  | | | | | | | | | |
 | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — |
 | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 24 | 29 | 25 | 25 | 23 | 18 | 22 | 21 | 16 | 16 | 17 | 17 | 16 | 18 | 17 | 22 | 22 | 17 | 18 | 18 | 17 |
Feels °C | 22 | 28 | 26 | 22 | 20 | 19 | 16 | 16 | 10 | 10 | 11 | 14 | 16 | 17 | 14 | 20 | 19 | 15 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 18 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 16 | WSW 15 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | SW 14 |
| kJ | 870 | 561 | 616 | 553 | 447 | 326 | 278 | 877 | 1194 | 4957 | 3448 | 1849 | 1028 | 824 | 2206 | 2615 | 2682 | 1972 | 1191 | 996 | 1138 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 21 | WSW 20 | SW 19 | WSW 18 | WSW 17 | W 15 | — | — | — | — | WSW 13 | — | W 9 | — | — | — | — | — | — |
| kJ | — | — | 18 | 38 | 91 | 127 | 313 | 38 | — | — | — | — | 312 | — | 129 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | — | NE 3 | NNW 3 | WNW 4 | WNW 4 | NW 5 | WNW 8 | W 13 | — | — | — | — | — | — | — | SSW 4 | — | — | — | — |
| kJ | 1 | — | 2 | 2 | 11 | 12 | 86 | 789 | 4000 | — | — | — | — | — | — | — | 11 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 44 | 299 | 299 | 0 | 358 | 386 | 623 | 1104 | 1890 | 181 | 14 | 44 | 0 | 0 | 181 | 21 | 429 | 181 | 0 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Alkimos 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 Alkimos Surf forecast
The above surf forecast table for Alkimos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Alkimos can be found by selecting the local surf guide option on the grey menu. Our Alkimos 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 (Alkimos) 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 Alkimos 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 Perth City Coast? If you are looking for accommodation near Alkimos, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 35 km (22 miles) away. Other places in and around Perth City Coast where you can find information about places to rent, and car hire include Fremantle which is 43 km (27 miles) away, Canning Vale, Gosnells and Kwinana.
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