
Surf Forecasts:
Dongara-Port Denison surf forecast from 11 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 2AM (local time) - 11ft (3.5m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 11PM (local time) - 11ft (3.5m), 17s period, SW swell with 6,323 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 5AM (local time) - 11ft (3.5m), 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 Wednesday (Aug 12) at 5AM. The primary swell is predicted to be 3.5m and 16s period. 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 17s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Aug 12) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 12th Aug) | 11ft (3.5m) 16s |
| Best Surf | 2AM (Tue 18th Aug) | 11ft (3.5m) 17s |
| Most Powerful | 11PM (Mon 17th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Dongara-Port Denison over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of south-west groundswell lined up for Dongara-Port Denison, and it’s mostly for the experienced crew. This is a reef setup, exposed to the west, and when it gets clean, it’s a proper wave. Water temps are about average for the time of year, so no surprises there.
The big news is a strong run of swell starting Wednesday the 12th on the morning session. We’re talking 10 ft SW groundswell with a 16-second period, so plenty of energy in the water (3876 combined energy). With an easterly offshore breeze around 9 mph, it’s going to be clean and lined up. This one’s for experienced surfers only – it’s big, powerful, and the reef won’t forgive a mistake. That Wednesday morning is a standout.
Thursday morning the 13th keeps the quality high: 8 ft SW swell, 15-second period, and an offshore ENE breeze at 9 mph. The energy is still strong (3686), and the waves will be well-shaped. It’s still very solid, so keep your wits about you.
Friday morning the 14th is another beauty. 8 ft SW, 16-second period, and a clean offshore E wind at 12 mph (3624). The consistency is there, and the sets will have push. Again, it’s waves for competent surfers who can handle a solid reef break.
Saturday morning the 15th eases a touch to 7 ft SW, 14-second period, with a cross-offshore ENE breeze (1736 energy). Still clean and fun, but the size drops enough to think about stepping down to a smaller board.
Sunday the 16th is a mixed bag. The morning is a bit weaker at 4 ft, but the afternoon turns glassy – zero wind – with 7 ft SW at 16 seconds (2185 energy). That afternoon session is clean and inviting, but the bigger pulse is back.
Monday the 17th goes ugly with onshore winds and messy conditions. Skip it.
Tuesday the 18th morning is a ripper: 10 ft SW, 16-second groundswell, and a light offshore NE breeze (4588 energy). It’s going to be big, clean, and pumping. Another standout morning for those who can handle it.
Wednesday the 19th is onshore and lumpy. Not worth it.
Now, here’s the real gem: Thursday the 20th morning. 12 ft SW, 16-second period, with a light cross-offshore NNE breeze. The combined energy is massive (6963), and it’s described as exceptional surf for experts. This is the best on offer – a proper, heavy, grinding reef wave with clean conditions. Mark it on the calendar.
Friday the 21st is a write-off with fresh onshore gale-force winds and rain. Stay home.
Saturday the 22nd morning sees a huge 13 ft SW swell, 19-second period (10892 energy). That’s very long-period groundswell and it’s going to be powerful. The wind is cross-shore, so it’ll have some bump, but for experts, the size and energy will be there. Not a beginner’s day.
From Sunday the 23rd onward, the swell backs off and the winds turn onshore or cross-onshore, making things lumpy and choppy. Monday the 24th is rain and strong winds – poor. Tuesday the 25th drops to 5 ft with clean conditions but low energy (786). Wednesday the 26th and Thursday the 27th mornings offer cleaner cross-offshore breezes with 7 ft to 8 ft SW swell (1725 to 2281 energy), which will be tidy but not the highlight of the run.
So bottom line: if you’ve got the skill, the early mornings from the 12th through the 20th are where it’s at, with Thursday the 20th morning being the standout. It’s a reef, crowds are possible, so get in early.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Fri afternoon, min 10°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 15 | SW 15 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 16 | SW 15 | WSW 16 | SW 18 | SW 17 |
Wave Graph | |||||||||||||||||||
6363 | 3876 | 2754 | 2817 | 2869 | 4312 | 4598 | 3624 | 3172 | 2259 | 1736 | 1363 | 1021 | 844 | 2185 | 2146 | 2300 | 3304 | 6250 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | off | cross | off | off | cross | off | cross-off | cross | off | cross-off | glassy | on | on | cross-on | cross-off |
High Tide | 8:44AM0.74m | 9:35AM0.69m | 1:07AM0.37m | 10:21AM0.61m | 00:44AM0.41m | 11:01AM0.52m | 00:51AM0.47m | 11:29AM0.43m | 1:08AM0.53m | 9:57AM0.35m | 1:31AM0.57m | ||||||||
Low Tide | 5:36PM0.02m | 5:55PM0.09m | 2:51AM0.36m | 5:56PM0.16m | 4:31AM0.35m | 5:42PM0.21m | 5:46AM0.34m | 5:27PM0.23m | 7:03AM0.34m | 5:20PM0.23m | |||||||||
— | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | |
5:53 | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 18 | 17 | 16 | 19 | 18 | 18 | 21 | 19 | 19 | 22 | 19 | 22 | 26 | 21 | 19 | 19 | 17 |
Feels °C | 9 | 9 | 15 | 13 | 12 | 16 | 14 | 14 | 18 | 15 | 15 | 19 | 15 | 17 | 23 | 20 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | WSW 16 | SW 18 | SW 17 |
6363 | 3876 | 2754 | 2817 | 2869 | 4312 | 4598 | 3624 | 3172 | 2259 | 1736 | 1363 | 1021 | 669 | 2185 | 2146 | 2300 | 3304 | 6250 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 24 | SW 21 | SW 19 | — | — | — | — | — | — | — | — | SW 16 | — | SW 21 | SW 19 | WSW 7 | — |
— | — | 22 | 162 | 817 | — | — | — | — | — | — | — | — | 844 | — | 881 | 1351 | 268 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 187 | 0 | 0 | 185 | 0 | 0 | 453 | 0 | 59 | 0 | 562 | 688 | 473 | 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.











