Surf Forecasts:
Devonport Rivermouth surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 3ft (0.9m), 6s period, NNW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 4PM (local time) - 6.5ft (2.0m), 6s period, NW swell with 325 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 10PM (local time) - 3ft (0.9m), 6s period with NNW 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 Thursday (Aug 20) at 10PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 7s. 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 2.0m 6s and forecast to arrive on Monday (Aug 24) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Tuesday (Aug 25) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 20th Aug) | 3ft (0.9m) 6s |
| Best Surf | 10PM (Thu 20th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 4PM (Mon 24th Aug) | 6.5ft (2.0m) 6s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Righto, surfers. Rusty here with a look at what Devonport Rivermouth has in store for us over the next couple of weeks. I’ve gotta be straight with you – it’s a pretty grim stretch. There are no good surf options across the entire 16-day window. The forecast is a long, dry spell of poor conditions, so don’t be holding your breath for a decent session.
The Devonport Rivermouth (a point/river break) is the only spot on the radar, and it’s inconsistent, which is a bit of a downer. The water temperature is sitting at 55°, which is pretty much bang on average for this time of year, so no surprises there.
For the first week, from Thursday the 20th of August right through to the end of the month, the story is a broken record of poor surf conditions. Swell is mostly short-period, weak stuff, often under 4 ft, with a combined energy that mostly stays below 200 (weak to moderate). The winds are a mess, mostly cross or cross-onshore, and the wave comment is permanently “poor surf conditions.” There’s a brief moment on the morning of Tuesday the 25th of August where the wind goes glassy, but the swell is a pathetic 2 ft from the NW with a period of just 5 seconds – not enough to do anything with. The following week doesn’t get any better. The first few days of September offer a glimpse of something, with a few “surfable waves but very ordinary conditions” scoring a 1 out of 10, but that’s the best we get. The morning of Tuesday the 1st of September has a 6 ft swell from the NE with offshore wind, which is clean, but the swell is a short 6 seconds, so it’s going to be weak and messy. Not worth getting excited about. The rest of the period is more of the same: small, weak swells and poor wind.
The long gap of no recommendations is a full 16 days, so it’s a proper blank run. Given the area is a point/river break that’s inconsistent, this kind of poor run is more normal. It’s not looking good for paddle surfing. Sometimes when the wind picks up strong and the swell is significant, a setup like this can be more interesting for kite surfing, but that’s not the case here.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 14°C on Sat morning, min 8°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon morning. Very mild (max 13°C on Sun morning, min 6°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | NNW 6 | NW 6 | NW 6 | NW 6 | NW 6 | WNW 6 | WNW 6 | NW 6 | NW 15 | NW 14 | NW 16 | NW 5 | NW 6 | NW 6 | NNW 6 | NW 5 | NNW 16 | NW 15 | NW 14 | WNW 5 | NW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 155 | 131 | 32 | 102 | 162 | 57 | 193 | 116 | 75 | 31 | 38 | 53 | 163 | 325 | 63 | 12 | 27 | 36 | 32 | 37 | 45 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | glassy | cross | cross-off | glassy | cross-on | cross-off |
High Tide | 5:18PM3.18m | 5:58AM3.04m | 5:52PM3.15m | 6:36AM2.99m | 6:27PM3.10m | 7:14AM2.94m | 7:02PM3.04m | 7:53AM2.90m | 7:40PM2.97m | 8:35AM2.85m | 8:22PM2.90m | 9:21AM2.81m | 9:11PM2.83m | ||||||||
Low Tide | 11:15AM1.01m | 11:40PM0.67m | 11:51AM1.11m | 00:16AM0.71m | 12:26PM1.19m | 00:51AM0.76m | 1:01PM1.27m | 1:27AM0.81m | 1:38PM1.33m | 2:05AM0.86m | 2:20PM1.37m | 2:47AM0.91m | 3:06PM1.40m | 3:34AM0.96m | |||||||
 |  |  |  | | | |  | | | | | | |  | | | | | | | |
 | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 11 | 12 | 13 | 11 | 14 | 13 | 10 | 13 | 12 | 12 | 13 | 13 | 8 | 12 | 11 | 7 | 11 | 10 | 7 |
Feels °C | 10 | 9 | 7 | 7 | 8 | 5 | 8 | 8 | 5 | 9 | 7 | 8 | 8 | 8 | 4 | 8 | 7 | 4 | 8 | 7 | 4 |
Swell 1 Height (m) Direction Period (s) | NE 8 | NE 7 | NW 6 | NW 16 | NW 15 | NW 17 | NW 16 | NW 15 | NW 15 | NW 14 | NW 16 | NW 16 | — | — | NNW 6 | NW 5 | NNW 16 | NW 4 | NW 14 | NW 13 | NW 13 |
| kJ | 20 | 14 | 32 | 39 | 34 | 46 | 87 | 57 | 75 | 31 | 38 | 38 | — | — | 63 | 12 | 27 | 5 | 32 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 11 | NE 7 | NW 19 | NW 13 | NE 8 | N 8 | — | NNW 17 | — | — | — | — | NW 12 | NW 13 | NW 13 | NW 15 | NE 6 | NE 6 | NE 10 |
| kJ | 7 | 7 | 20 | 2 | 14 | 27 | 2 | 1 | — | 29 | — | — | — | — | 5 | 7 | 7 | 36 | 2 | 2 | 4 |
Swell 3 Height (m) Direction Period (s) | NW 19 | NW 18 | NE 7 | NW 20 | NE 7 | NE 7 | — | — | — | — | — | — | — | — | — | NW 18 | — | NE 7 | N 10 | N 10 | N 6 |
| kJ | 14 | 12 | 8 | 15 | 2 | 2 | — | — | — | — | — | — | — | — | — | 12 | — | 2 | 2 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | NNW 6 | NW 6 | — | NW 6 | NW 6 | WNW 6 | WNW 6 | NW 6 | NW 5 | NW 5 | NW 4 | NW 5 | NW 6 | NW 6 | — | — | NW 4 | SW 2 | WNW 4 | WNW 5 | NW 5 |
| kJ | 155 | 131 | — | 102 | 162 | 57 | 193 | 116 | 28 | 8 | 31 | 53 | 163 | 325 | — | — | 6 | 1 | 2 | 37 | 45 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 227 | 186 | 50 | 184 | 184 | 184 | 351 | 178 | 0 | 220 | 211 | 216 | 211 | 184 | 184 | 184 | 218 | 131 | 143 | 216 | 216 |
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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