Surf Forecasts:
Dongara-Port Denison surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 11PM (local time) - 11ft (3.5m), 16s period, SW swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 8AM (local time) - 15ft (4.5m), 13s period, SW swell with 6,827 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 11PM (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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 3.5m and 16s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dongara-Port Denison in the next 16 days are 4.5m 13s and forecast to arrive on Sunday (Sep 06) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Tuesday (Sep 08) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 4th Sep) | 11ft (3.5m) 16s |
| Best Surf | 11PM (Fri 4th Sep) | 11ft (3.5m) 16s |
| Most Powerful | 8AM (Sun 6th Sep) | 15ft (4.5m) 13s |
Table - best surf conditions forecast for Dongara-Port Denison over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’re looking at a solid run of swell down at Dongara-Port Denison, but it’s not all clean and easy. The wind is going to be our main battle for the first few days.
The first real chance to get wet is Friday morning, September 4th. Swell is a strong 8ft from the SW with a 14-second period, packing a lot of energy (3109). The issue is the wind – a 12 mph cross-onshore from the WSW, making things choppy. The water temperature is 67°, which is pretty normal for this time of year. This window is a write-off for clean surf; it’s more of a battle than a session. The afternoon is bigger at 10ft but still cross-onshore, so no better.
Saturday (September 5th) is more of the same, with that NW wind and lumpy conditions. Sunday morning (September 6th) we finally get a shift – a 19 mph cross-offshore from the SSE cleans things up for a big 13ft SW swell (5631). This is big, powerful stuff. That’s expert territory at 13ft, but the clean lines from a solid groundswell make it a standout for the experienced crew.
Monday (September 7th) is a real gem. The morning looks exceptional: 10ft SW swell, a 17-second monster period, and light offshore SE winds at 9 mph. Glassy conditions on a reef setup like this with that kind of period is a recipe for long, grinding walls. The energy is huge (5432), but that long period will mean long lulls between sets, making the paddle out manageable. This is the standout of the entire outlook.
Tuesday (September 8th) morning stays clean with a moderate offshore ESE breeze at 16 mph, and 8ft SW swell (3353) with a 16-second period. Really fun, powerful waves for experienced surfers. The next few days through to Thursday (September 10th) remain clean with offshore winds but the swell drops a bit.
Another real highlight is Thursday, September 17th. The afternoon session looks absolutely perfect: clean with a 9 mph cross-offshore SSE breeze, and a solid 8ft SW swell (4043) with a 17-second period. That’s world-class conditions on a reef. Mark that one on your calendar as a serious prospect.
There’s a week-long gap of messy, onshore wind and big lumpy conditions from Saturday September 12th to Saturday September 19th. A lot of that is just blown-out, with a 13ft monster on the 13th that’s completely unsurfable. Skip that entire week.
Signing off - Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sat night. Very mild (max 18°C on Fri morning, min 11°C on Sun night). Winds increasing (calm on Fri night, fresh winds from the SSE by Sun afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Wed afternoon, min 10°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 | SW 16 | SW 14 | WSW 14 | SW 10 | SW 13 | SW 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2534 | 3504 | 5152 | 3009 | 2760 | 4670 | 5514 | 3554 | 3411 | 5432 | 4168 | 3396 | 3353 | 4151 | 3865 | 2978 | 2653 | 1976 | 1343 | 1006 | 648 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-off | off | off | off | off | off | cross | off |
High Tide | 2:40AM0.66m | 4:15AM0.66m | 5:41AM0.67m | 6:53AM0.67m | 7:56AM0.65m | 11:53PM0.38m | 8:51AM0.61m | 10:55PM0.41m | |||||||||||||
Low Tide | 1:31PM0.12m | 2:15PM0.06m | 2:54PM0.02m | 3:29PM0.02m | 4:00PM0.04m | 4:23PM0.09m | 1:46AM0.38m | 4:36PM0.15m | 3:24AM0.33m | ||||||||||||
 | |  | |  |  | | | |  | | | | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — |
 | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — |
mm | — | — | — | — | 1 | 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 20 | 19 | 17 | 21 | 20 | 17 | 22 | 20 | 20 | 24 | 22 |
Feels °C | 13 | 12 | 15 | 13 | 12 | 11 | 10 | 9 | 11 | 13 | 17 | 15 | 11 | 16 | 15 | 11 | 17 | 15 | 17 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 16 | SW 14 | WSW 14 | — | SW 13 | SW 12 | SW 13 | SW 17 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 |
| kJ | 2534 | 3504 | 5152 | 3009 | 2760 | — | 5514 | 3554 | 1883 | 5432 | 4168 | 3396 | 3353 | 4151 | 3865 | 2978 | 2653 | 1976 | 1343 | 1006 | 648 |
Swell 2 Height (m) Direction Period (s) | SW 17 | — | — | — | — | — | SW 21 | SW 20 | SW 18 | — | — | — | — | — | — | — | — | SW 26 | SW 24 | SW 24 | SW 22 |
| kJ | 575 | — | — | — | — | — | 117 | 325 | 3411 | — | — | — | — | — | — | — | — | 26 | 90 | 142 | 372 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SW 10 | — | — | — | — | — | — | — | — | ESE 4 | ESE 4 | — | ENE 3 | — | — | — |
| kJ | — | — | — | — | — | 4670 | — | — | — | — | — | — | — | — | 16 | 10 | — | 6 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2202 | 473 | 0 | 663 | 668 | 707 | 1754 | 453 | 313 | 64 | 296 | 53 | 68 | 259 | 68 | 454 | 0 | 0 | 0 | 238 | 59 |
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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