Surf Forecasts:
Devonport Rivermouth surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 10PM (local time) - 1.5ft (0.4m), 13s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 4PM (local time) - 1.5ft (0.4m), 19s period, NW swell with 125 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 10PM (local time) - 1.5ft (0.4m), 13s 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 Sunday (Sep 06) at 10PM. The primary swell is predicted to be 0.4m and 13s period with a secondary swell of 0.1m and 7s. Another secondary swell of 0.9m and 5s is also forecast. 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 0.4m 19s and forecast to arrive on Wednesday (Sep 09) at 4PM. 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 4s period and expected on Tuesday (Sep 08) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 6th Sep) | 1.5ft (0.4m) 13s |
| Best Surf | 10PM (Sun 6th Sep) | 1.5ft (0.4m) 13s |
| Most Powerful | 4PM (Wed 9th Sep) | 1.5ft (0.4m) 19s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's coming down the line for this spot.
Right off the bat, I gotta be straight with you – we're looking at a long, dry spell to kick things off. The first week and a half or so is pretty grim. We're talking about a stretch from Sunday the 6th of September all the way through to around the 18th of September where the surf is just not worth paddling out for. There's very little wave energy, and what's there is just too small and weak to do anything with.
It's a bit of a bummer, but it's the hand we've been dealt. The water temperature is sitting at about 55°F, which is pretty much what you'd expect for this time of year, so at least that's not a shock to the system.
Now, for the patient among you, things start to look a bit more interesting towards the end of the period. The first real standout I can see is on Sunday the 20th of September. The afternoon is showing some proper swell building. We've got a 8ft swell coming from the NW, with a period of 7 seconds. That's a fair bit of energy in the water, with a combined energy reading of 516. That's a strong, powerful swell. The wind is a fresh offshore from the west, which will clean it right up. But, listen, at that size, this is not a beginner wave. This is a wave for the experienced crew only. It's going to be a handful.
The other one to keep an eye on is Monday the 21st of September. The morning session is looking glassy with the wind swinging light from the WNW. The swell is still solid at 6ft from the NW, with a period of 6 seconds and a combined energy of 265. It's still a fair bit of power, and with those glassy conditions, it could be clean and punchy. The afternoon sees the swell jump back up to 8ft, but the wind goes cross-shore, so it'll get a bit bumpy.
So, for the whole 16-day outlook, the best bet is the afternoon of Sunday the 20th, or the morning of Monday the 21st. That's your window. Get out there if you can handle it.
Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 15°C on Mon afternoon, min 5°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 6°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 15 | NW 13 | NW 6 | NW 5 | NW 11 | NW 18 | WNW 5 | NW 6 | NW 16 | NW 19 | NW 18 | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 16 | NW 16 | NW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 33 | 41 | 33 | 7 | 5 | 13 | 64 | 54 | 39 | 125 | 109 | 101 | 68 | 40 | 35 | 34 | 37 | 40 | 39 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | glassy | cross-on | glassy |
High Tide | 6:14PM3.36m | 7:10AM3.22m | 7:08PM3.28m | 8:07AM3.12m | 8:08PM3.17m | 9:09AM3.02m | 9:15PM3.06m | 10:13AM2.95m | 10:27PM2.98m | 11:19AM2.94m | 11:40PM2.97m | 12:20PM2.97m | 00:47AM3.01m | |||||||
Low Tide | 00:43AM0.38m | 1:04PM1.02m | 1:37AM0.48m | 2:00PM1.09m | 2:36AM0.61m | 3:03PM1.15m | 3:41AM0.74m | 4:14PM1.15m | 4:53AM0.83m | 5:29PM1.08m | 6:04AM0.87m | 6:37PM0.94m | ||||||||
 |  | | | | |  | |  | |  | | | | | | | | | | |
 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 11 | 14 | 15 | 7 | 14 | 14 | 10 | 12 | 11 | 10 | 13 | 13 | 8 | 17 | 18 | 9 | 13 | 13 | 9 |
Feels °C | 11 | 8 | 10 | 11 | 3 | 9 | 8 | 4 | 5 | 5 | 4 | 9 | 10 | 3 | 14 | 13 | 5 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 13 | NW 6 | NW 5 | NW 11 | NW 18 | NNW 17 | NW 6 | NW 16 | NW 19 | NW 18 | NW 17 | NW 16 | NW 16 | WNW 5 | NW 15 | NW 4 | NW 16 | NW 16 | NW 15 |
| kJ | 18 | 41 | 33 | 7 | 5 | 13 | 30 | 54 | 39 | 125 | 109 | 101 | 68 | 40 | 7 | 34 | 5 | 40 | 39 | 8 |
Swell 2 Height (m) Direction Period (s) | NW 15 | — | WNW 12 | NW 11 | — | NW 13 | — | NW 16 | NW 11 | — | — | — | — | — | NW 15 | — | NW 15 | — | — | NNW 3 |
| kJ | 33 | — | 13 | 5 | — | 7 | — | 40 | 4 | — | — | — | — | — | 35 | — | 37 | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | NE 8 | — | N 15 | — | — | — | — | — | NW 21 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | 4 | — | — | — | — | — | 18 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | WNW 5 | — | — | SSW 2 | W 3 | WNW 5 | WSW 3 | W 4 | WSW 4 | W 4 | W 3 | W 5 | W 5 | — | WNW 4 | — | — | NW 3 | — |
| kJ | 7 | 32 | — | — | 1 | 7 | 64 | 7 | 16 | 13 | 12 | 8 | 27 | 33 | — | 11 | — | — | 5 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 216 | 216 | 50 | 218 | 184 | 184 | 184 | 184 | 687 | 1328 | 178 | 178 | 211 | 216 | 178 | 178 | 131 | 184 | 143 | 148 |
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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