Surf Forecasts:
Dongara-Port Denison surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 5AM (local time) - 10ft (3.0m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 11PM (local time) - 11ft (3.5m), 17s period, SW swell with 6,388 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 10ft (3.0m), 16s period with SW swell.
Best Forecast Surf Conditions for Dongara-Port Denison this week:
The surf forecast for Dongara-Port Denison over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 5AM. The primary swell is predicted to be 3.0m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dongara-Port Denison in the next 16 days are 3.5m 17s and forecast to arrive on Wednesday (Aug 26) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Best Surf | 5AM (Thu 20th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 11PM (Wed 26th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Dongara-Port Denison over the next 16 days.
The Lowdown
G'day, I'm Rusty, and here's the look ahead for our patch.
We've got a solid run of groundswell coming through over the next week or so, but ya gotta pick your moments. The wind's the main player here, and it's gonna be a bit of a mixed bag. The water is sitting at 66°, which is a touch colder than usual for this time of year.
The first real standout shapes up for Thursday, August 20th. The morning session at Dongara-Port Denison (reef) is where it's at. You've got a clean 10 ft SW groundswell with a very long 16 second period, and a light SE cross-offshore breeze. That's a recipe for proper, powerful waves with plenty of energy in the water (4762). That's a big, solid swell though, so it's one for the experienced crew only.
Friday, August 21st morning is also a beauty. The swell eases a touch to 8 ft from the SW, still with a lengthy 15 second period, but the wind swings to a light offshore out of the east. The wave energy is still strong (2932), and it'll be clean and well-shaped. Again, it's a fair few waves, so keep that in mind.
There's a bit of a lull with the wind through the weekend, but Monday, August 24th morning offers a chance with a clean 7 ft SW groundswell (14 secs) and a gentle offshore from the ESE. The energy is still moderate (1572). It's a solid day, but not as clean as the earlier ones.
Then we get a bit of a gap. Tuesday, August 25th morning has a smaller 5 ft swell (12 secs) with light winds, but it's a drop in size. The energy drops off too (634). The wind and swell get messy again through the end of the week.
Looking further out, we've got another promising window. Sunday, August 30th morning is looking like a cracker. The swell is back up to 8 ft from the SW with a very long 18 second period, and there's a light cross-offshore breeze. The energy is cranking (3679) and it'll be clean. That's another one for the advanced surfers.
Finally, Wednesday, September 3rd morning is a real standout on the horizon. The guidance points to a 8 ft SW groundswell (15 secs) with glassy conditions. The wave energy is full-on (3297) and it'll be about as clean as it gets. That's a big day brewing, and a real potential highlight for the experienced crew.
So, to sum it up: the best of the best is a toss-up between the clean, powerful Thursday the 20th and the glassy, promising Wednesday the 3rd of September.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 14°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Mon afternoon, min 12°C on Mon morning). Winds decreasing (fresh winds from the SSW on Sun afternoon, light winds from the NW by Tue morning). | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 11 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 4899 | 4762 | 4189 | 3499 | 2945 | 2457 | 2278 | 1994 | 2548 | 1384 | 810 | 776 | 2133 | 2247 | 1680 | 1103 | 624 | 357 | 787 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | off | cross-off | cross-off | off | cross | cross-off | cross | cross | cross-off | off | cross | off | cross-on | cross | cross-off |
High Tide | 2:33AM0.59m | 3:20AM0.59m | 4:22AM0.59m | 5:25AM0.60m | 6:23AM0.61m | 7:12AM0.62m | |||||||||||||
Low Tide | 2:49PM0.17m | 3:06PM0.15m | 3:27PM0.12m | 3:47PM0.10m | 4:07PM0.09m | 4:23PM0.08m | |||||||||||||
 |  | |  | |  | | | |  | | | | | | | | | | |
 | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | 5:58 | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 19 | 18 | 20 | 23 | 21 | 20 | 22 | 18 | 18 | 18 | 16 | 16 | 19 | 17 | 19 | 18 | 17 |
Feels °C | 14 | 15 | 16 | 14 | 16 | 20 | 18 | 19 | 20 | 14 | 13 | 12 | 11 | 14 | 16 | 13 | 17 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 11 | SW 14 |
| kJ | 4899 | 4762 | 4189 | 3499 | 2945 | 2457 | 2278 | 1994 | 2548 | 1384 | 810 | 776 | 2133 | 2247 | 1680 | 1103 | 624 | 357 | 787 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 26 | SW 24 | SW 20 | SW 18 | — | — | SW 18 | SW 18 | — | — | — | — | — | SW 15 | SSW 5 |
| kJ | — | — | — | — | 26 | 87 | 851 | 1124 | — | — | 161 | 319 | — | — | — | — | — | 273 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 23 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 54 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 6 | SSW 6 | SSW 6 | S 6 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 195 | 144 | 140 | 82 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 64 | 0 | 373 | 53 | 0 | 11 | 0 | 0 | 480 | 453 | 453 | 453 | 64 | 0 | 453 | 0 | 53 | 679 | 0 |
Best forecast wave conditions in North West WA | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Dongara-Port Denison Surf forecast
The above surf forecast table for Dongara-Port Denison provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dongara-Port Denison can be found by selecting the local surf guide option on the grey menu. Our Dongara-Port Denison 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 (Dongara-Port Denison) 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 Dongara-Port Denison 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 West WA? If you are looking for accommodation near Dongara-Port Denison, camping, hotels and holiday cottages in North West WA, consider staying in Geraldton which is 62 km (39 miles) away.
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