Surf Forecasts:
Devonport Rivermouth surf forecast from 5 Aug 2026:
- Best quality surf: Monday 10 Aug, 1AM (local time) - 5.5ft (1.7m), 7s period, NNW swell with offshore winds.
- Most powerful swell: Tuesday 11 Aug, 7PM (local time) - 7ft (2.2m), 8s period, NW swell with 516 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 4AM (local time) - 2.5ft (0.8m), 6s period with NW swell.
Best Forecast Surf Conditions for Devonport Rivermouth this week:
The surf forecast for Devonport Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 4AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.2m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Devonport Rivermouth in the next 16 days are 2.2m 8s and forecast to arrive on Tuesday (Aug 11) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Aug 10) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 7th Aug) | 2.5ft (0.8m) 6s |
| Best Surf | 1AM (Mon 10th Aug) | 5.5ft (1.7m) 7s |
| Most Powerful | 7PM (Tue 11th Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Alright, let’s get this out there. The next couple of weeks are looking pretty grim for a proper paddle, if I’m being honest. We’ve got a long stretch of tiny, weak swell and a lot of wind that’s just not doing us any favors. It’s going to test your patience, that’s for sure.
The first real window we can even talk about is Wednesday the 10th, but even then, it's a bit of a tease. For the most part, we’re looking at a whole lot of nothing until then. From now through the 9th, it’s small and messy. Don’t get your hopes up for the weekend; Saturday’s got some cross-onshore junk, and Sunday is a full-on washout with onshore winds and a jump in size but sloppy conditions. That Sunday afternoon bump to 6ft might look tempting on paper, but with 19 mph onshore winds, it’ll be a battle.
Now, Monday morning, the 10th, is where we get our one real highlight. Devonport Rivermouth (New Zealand) is the only spot with a pulse. It’s a point/river break that’s usually inconsistent, so this is a bit of a rare treat. We’ve got a 5ft swell out of the NW with a short 7-second period. The energy is strong, with a combined reading of 514. The wind is a light 6 mph cross-offshore, which will keep it clean. The water is sitting at 55°, which is about 0.5° warmer than average for this time of year, so nothing wild there. The catch is, it’s a beginner-friendly wave, and with that size and short period, it’ll be a bit crumbly and soft. It’s not going to be a world-beater, but it’s the best we’ve got. The swell direction is NW, which is right in the spot’s optimum window, and the light wind will make it glassy. It’s a solid, clean option, but don’t expect barrels. After that, the window slams shut again. The wind picks up hard out of the west on Tuesday the 11th, and while there’s more size, it’s going to be lumpy and crossed-up. The rest of the week and into the next is just small, weak, and wind-affected. There’s a brief moment on Tuesday the 18th with glassy conditions and a 4ft swell, but it’s a weak, short-period NW swell and the comment says it’s ordinary. Not worth getting excited about.
Honestly, if you’re keen, you’ve got one window: Monday morning. Otherwise, it’s a long wait. The setup is looking more like a kiteboarder’s dream than a surfer’s paradise for most of this run.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 13°C on Wed morning, min 6°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 43mm), heaviest during Sun afternoon. Very mild (max 12°C on Sat afternoon, min 8°C on Mon afternoon). Winds increasing (calm on Sat afternoon, fresh winds from the NW by Mon night). | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 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) | NW 5 | N 19 | NW 18 | NW 16 | NW 16 | NW 6 | NW 18 | NW 16 | NW 17 | NW 16 | NW 16 | NNW 7 | N 6 | N 6 | NNW 7 | NW 18 | NW 17 | NW 16 | NW 5 | NW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 7 | 12 | 10 | 10 | 46 | 50 | 38 | 46 | 40 | 39 | 134 | 239 | 233 | 294 | 116 | 103 | 87 | 62 | 501 | 220 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-off | cross-off | cross | cross-off | glassy | cross | glassy | cross | glassy | on | on | on | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off |
High Tide | 4:08PM3.18m | 4:43AM3.11m | 4:54PM3.24m | 5:37AM3.15m | 5:43PM3.30m | 6:34AM3.18m | 6:35PM3.32m | 7:33AM3.18m | 7:30PM3.31m | 8:33AM3.16m | 8:30PM3.28m | 9:36AM3.14m | 9:34PM3.23m | ||||||||
Low Tide | 10:02AM0.93m | 10:32PM0.75m | 10:50AM0.96m | 11:21PM0.63m | 11:39AM1.00m | 00:11AM0.54m | 12:30PM1.04m | 1:05AM0.48m | 1:25PM1.09m | 2:01AM0.46m | 2:23PM1.13m | 3:01AM0.48m | 3:27PM1.16m | ||||||||
 | |  |  |  | | | |  | | |  |  | |  |  | |  |  | | | |
 | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | 1 | 7 | 14 | 13 | 5 | — | — | 3 | 6 | — | 1 |
Temp °C | 13 | 12 | 8 | 12 | 10 | 9 | 12 | 13 | 8 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 |
Feels °C | 11 | 8 | 5 | 7 | 7 | 7 | 10 | 9 | 5 | 8 | 11 | 9 | 5 | 5 | 9 | 5 | 6 | 6 | 5 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | — | — | WNW 4 | NW 16 | NW 16 | NW 6 | NW 5 | NW 16 | NW 4 | NW 16 | NNW 4 | NW 14 | NNW 14 | NW 13 | NNW 7 | NNW 6 | NE 9 | NW 16 | NW 14 | NNE 10 | NNW 7 |
| kJ | — | — | 3 | 10 | 10 | 46 | 14 | 38 | 5 | 40 | 3 | 33 | 19 | 7 | 294 | 47 | 40 | 87 | 31 | 10 | 220 |
Swell 2 Height (m) Direction Period (s) | — | N 19 | NW 13 | W 12 | E 10 | NW 19 | NW 18 | NW 19 | NW 17 | NW 4 | NW 16 | NW 18 | N 18 | NW 18 | NE 6 | NE 6 | NW 17 | NE 9 | NE 10 | — | NW 12 |
| kJ | — | 7 | 7 | 3 | 2 | 14 | 50 | 14 | 46 | 1 | 39 | 13 | 6 | 12 | 64 | 16 | 103 | 21 | 15 | — | 52 |
Swell 3 Height (m) Direction Period (s) | NW 5 | W 11 | NW 18 | — | — | NW 11 | NW 9 | W 8 | — | — | N 20 | — | — | — | NW 21 | NW 18 | NNW 6 | — | — | — | NNW 20 |
| kJ | 1 | 2 | 12 | — | — | 5 | 3 | 1 | — | — | 7 | — | — | — | 68 | 116 | 3 | — | — | — | 38 |
Wind waves Height (m) Direction Period (s) | — | NW 2 | — | W 3 | NW 3 | — | — | NW 4 | — | SE 2 | — | NNW 7 | N 6 | N 6 | — | SW 2 | W 3 | W 3 | NW 5 | NW 7 | SW 3 |
| kJ | — | 1 | — | 5 | 5 | — | — | 13 | — | 1 | — | 134 | 239 | 233 | — | 1 | 7 | 2 | 62 | 501 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 131 | 178 | 131 | 131 | 131 | 131 | 50 | 201 | 131 | 144 | 216 | 218 | 216 | 218 | 0 | 201 | 178 | 184 | 216 | 184 | 180 |
Best forecast wave conditions in North Coast of Tasmania | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Devonport Rivermouth Surf forecast
The above surf forecast table for Devonport Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Devonport Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Devonport Rivermouth 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 (Devonport Rivermouth) 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 Devonport Rivermouth 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.
Devonport Rivermouth is 5 km (3 miles) from Devonport. If you plan a holiday in North Coast of Tasmania, look for hotels and other accommodation in Devonport. Devonport has rooms for a wide range of budgets as well as car hire and transport links.
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