Surf Forecasts:
Dongara-Port Denison surf forecast from 5 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 8PM (local time) - 10ft (3.0m), 16s period, SW swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 5AM (local time) - 11ft (3.5m), 18s period, SW swell with 6,635 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 2AM (local time) - 7ft (2.1m), 13s period with WSW 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 Sunday (Sep 06) at 2AM. The primary swell is predicted to be 2.1m and 13s period with a secondary swell of 0.1m and 24s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Dongara-Port Denison in the next 16 days are 3.5m 18s and forecast to arrive on Monday (Sep 07) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Sep 09) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 6th Sep) | 7ft (2.1m) 13s |
| Best Surf | 8PM (Tue 8th Sep) | 10ft (3.0m) 16s |
| Most Powerful | 5AM (Mon 7th Sep) | 11ft (3.5m) 18s |
Table - best surf conditions forecast for Dongara-Port Denison over the next 16 days.
The Lowdown
Alright crew, Rusty here, breaking down the swell for Dongara-Port Denison. We’ve got a solid run of surf coming, but you’ll need to pick your windows.
The first few days are a bust. Saturday the 5th is a mess – 8ft of SW swell but with a 12 mph NW cross-on wind, it’s just lumpy and choppy. Not worth it. That continues into Sunday and Monday mornings with bigger swell (10ft to 12ft) but the wind is still off. The real turn starts Monday 7th September.
Monday 7th is the first standout. We’ve got a solid 10ft SW groundswell with a very long 17-second period, and the wind is a clean offshore from the SE at 12 mph. The combined wave energy is pumping at 5180 (strong). This is a reef break, so that long period will wrap in nicely. Water temp is 19°, just about average for this time of year. This is one for the experienced surfers – 10ft is solid, leave the soft tops at home.
Tuesday 8th stays clean with offshore winds, 8ft to 10ft SW swell, and a long period of 16 seconds. Energy is still very strong (3854-4262). A good follow-up day, but Monday is the pick of the first week.
We get a lull from Thursday 10th through Saturday 12th as the swell drops to 4ft-5ft and the wind turns onshore or cross, making things choppy. Not much to write home about.
The next proper standout is building for Monday 14th September – back to 8ft SW swell, 15-second period, and clean offshore wind from the SE at 12 mph. Energy is strong again at 3051. That’s a solid, surfable day.
The real gem of the whole forecast is Tuesday 15th September. The data says “excellent surf conditions for experienced surfers” – and I’m with them. 10ft of SW groundswell, long 16-second period, and a clean offshore wind from the E at 12 mph. The combined energy is 3832 – strong and powerful. This is a big, clean, lined-up day at the reef. Crowds are listed as “sometimes” so you might see a few locals, but it’s not packed.
Thursday 17th also has a moment in the afternoon – 8ft SW swell, 16-second period, and glassy conditions with winds dropping to 3 mph from the WSW. That’s a rare, clean window. Energy is 2761 (moderate).
The tail end of the forecast, Saturday 20th September, is throwing up some serious numbers – 12ft SW swell, 16-second period, and wave energy hitting 10319 (very strong). That’s a massive day of swell. The wind is light and cross-on, so it might be a bit bumpy, but for the big-wave crew, that’s a legit session. It’s still a week and a half out, so treat it as a promising long-range call.
Overall, the standout days are Monday 7th and Tuesday 15th September. Both have solid groundswell, long periods, clean offshore wind, and strong energy. If you’re experienced, get after it. Beginners should stay clear of the 10ft+ days.
This is Rusty, signing off.
Short Range ForecastModerate rain (total 11mm), heaviest on Sat night. Warm (max 22°C on Mon afternoon, min 10°C on Mon morning). Winds increasing (light winds from the ESE on Sat night, fresh winds from the SSE by Sun afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Thu afternoon, min 12°C on Tue morning). Winds decreasing (fresh winds from the E on Wed morning, calm by Thu night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | SW 14 | SW 14 | WSW 13 | SW 13 | SW 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 20 | WSW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3009 | 2471 | 1520 | 3300 | 3116 | 3411 | 5180 | 4168 | 2721 | 3854 | 4262 | 3525 | 3175 | 2653 | 1884 | 1155 | 1020 | 810 | 676 | 1379 | 2734 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross | glassy | cross-on | cross-on | cross-on |
High Tide | 4:15AM0.66m | 5:41AM0.67m | 6:53AM0.67m | 7:56AM0.65m | 11:53PM0.38m | 8:51AM0.61m | 10:55PM0.41m | 9:42AM0.55m | 10:52PM0.47m | ||||||||||||
Low Tide | 2:15PM0.06m | 2:54PM0.02m | 3:29PM0.02m | 4:00PM0.04m | 4:23PM0.09m | 1:46AM0.38m | 4:36PM0.15m | 3:24AM0.33m | 4:35PM0.21m | 4:24AM0.29m | |||||||||||
 |  |  | | |  |  | | | | | | | | | | | | | | | |
 | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — |
mm | — | 1 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 16 | 17 | 18 | 16 | 17 | 22 | 19 | 17 | 22 | 19 | 17 | 21 | 18 | 18 | 23 | 18 | 19 | 19 | 19 |
Feels °C | 13 | 13 | 13 | 12 | 12 | 11 | 13 | 18 | 14 | 10 | 16 | 15 | 10 | 14 | 12 | 14 | 21 | 16 | 18 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 13 | SW 13 | SW 12 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 20 | WSW 18 |
| kJ | 3009 | 2471 | 1520 | 3300 | 3116 | 1789 | 5180 | 4168 | 2721 | 3854 | 4262 | 3525 | 3175 | 2653 | 1884 | 1155 | 1020 | 810 | 676 | 1379 | 2734 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 24 | SW 21 | SW 20 | SW 18 | — | — | S 6 | — | — | — | — | — | WSW 26 | SW 24 | SW 24 | SW 22 | SW 21 | SW 14 | SW 13 |
| kJ | — | — | 22 | 113 | 412 | 3411 | — | — | 120 | — | — | — | — | — | 66 | 89 | 142 | 372 | 527 | 614 | 336 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ESE 4 | — | E 4 | ESE 4 | E 4 | E 4 | ENE 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 10 | — | 14 | 15 | 10 | 18 | 10 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 663 | 668 | 0 | 1754 | 454 | 373 | 64 | 375 | 53 | 492 | 185 | 53 | 510 | 185 | 0 | 32 | 185 | 0 | 310 | 562 | 663 |
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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