
Surf Forecasts:
Devonport Rivermouth surf forecast from 3 Sep 2026:
- Best quality surf: Sunday 6 Sep, 1AM (local time) - 5ft (1.5m), 8s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 10PM (local time) - 7.5ft (2.3m), 9s period, NW swell with 754 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 1AM (local time) - 5ft (1.5m), 8s 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 1AM. The primary swell is predicted to be 1.5m and 8s period. 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 2.3m 9s and forecast to arrive on Saturday (Sep 05) at 10PM. 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 5s period and expected on Sunday (Sep 06) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 6th Sep) | 5ft (1.5m) 8s |
| Best Surf | 1AM (Sun 6th Sep) | 5ft (1.5m) 8s |
| Most Powerful | 10PM (Sat 5th Sep) | 7.5ft (2.3m) 9s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s on the menu.
Honestly, this is a rough stretch. There’s a long, dry gap of more than a week with nothing worth paddling for. The only spot we’re looking at is Devonport Rivermouth, and it’s going to be a patience game.
Right now, on Thursday the 3rd of September, we’ve got a 2.3m swell from the WNW, but the wind is a fresh cross-off at 35 km/h, and the combined energy is moderate (682). The wave comment says it’s marginal, and the score reflects that. It’s not the day to get excited.
Friday the 4th drops right off to 0.6m, and it’s not much better. The swell direction is NW, but the period is a long 16 seconds, which is good for a point/river setup like this, but the wind is cross and the energy is weak (257). Just poor conditions all around.
Saturday the 5th sees a bump back up to 1.8m on the morning from the NNW, but it’s a short period 6 seconds and direct cross-on wind with heavy rain. That’s a write-off. The afternoon has 2.2m from the NW, but again, short period and cross wind. The energy jumps to moderate (501) but it’s lumpy and poor.
Sunday the 6th morning is glassy with some NW swell at 0.8m, but the period is only 6 seconds and the energy is weak (59). The comment says poor surf conditions, so even with clean glass, there’s just not enough push.
From Monday the 7th all the way through to Tuesday the 15th of September, we’re stuck with tiny waves – mostly under 1.0m, with periods all over the place, but the energy is consistently weak (mostly under 100). The winds are often clean, but there’s just no swell to work with. It’s a real dry spell.
Finally, on Wednesday the 16th of September, we get a little glimmer. The morning is glassy with a light NNE wind, 0.9m from the WNW, and the wave comment says “surfable waves but very ordinary conditions.” The energy is still weak (91). The afternoon cleans up with a light offshore from the S, same 0.9m. It’s not a standout, but it’s the best we’ve seen in over a week.
The water temperature is about 13°C, which is pretty standard for this time of year – no big anomaly there.
So, if you’re desperate, Wednesday the 16th of September afternoon is your best bet. The wind is offshore, it’s clean, and you’ll get a few small, rideable waves at Devonport Rivermouth. It’s an inconsistent spot, so don’t expect a party, but you might snag a couple. Just don’t expect any heroes out there.
That’s the truth of it. Rusty, signing off.
Short Range ForecastHeavy rain (total 26mm), heaviest during Sat morning. Very mild (max 16°C on Sun morning, min 8°C on Thu night). Winds decreasing (fresh winds from the W on Thu afternoon, calm by Sun morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Sun afternoon, min 4°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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) | WNW 8 | WNW 7 | NW 16 | NW 16 | NW 16 | NNW 6 | NW 7 | NW 8 | NW 6 | NW 5 | NW 12 | NW 5 | WNW 5 | NW 5 | NNW 18 | WNW 4 | NW 6 | NW 15 | NW 18 | NW 19 |
Wave Graph | ||||||||||||||||||||
616 | 242 | 163 | 167 | 91 | 237 | 501 | 257 | 42 | 80 | 23 | 12 | 14 | 7 | 32 | 37 | 49 | 37 | 51 | 122 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross-off | glassy | cross | cross-off | cross-off | off | off | cross | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:34AM3.31m | 4:38PM3.37m | 5:25AM3.33m | 5:25PM3.39m | 6:16AM3.30m | 6:14PM3.36m | 7:10AM3.22m | 7:08PM3.28m | 8:07AM3.12m | 8:08PM3.17m | 9:09AM3.02m | 9:15PM3.06m | ||||||||
Low Tide | 10:17PM0.44m | 10:38AM0.86m | 11:04PM0.36m | 11:25AM0.89m | 11:52PM0.33m | 12:13PM0.95m | 00:43AM0.38m | 1:04PM1.02m | 1:37AM0.48m | 2:00PM1.09m | 2:36AM0.61m | 3:03PM1.15m | 3:41AM0.74m | |||||||
— | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — | |
5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | 10 | 14 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 9 | 12 | 12 | 13 | 14 | 13 | 12 | 16 | 16 | 11 | 13 | 14 | 8 | 13 | 14 | 11 | 12 | 12 | 8 |
Feels °C | 3 | 2 | 7 | 7 | 10 | 10 | 8 | 9 | 13 | 12 | 5 | 9 | 10 | 5 | 7 | 8 | 5 | 5 | 6 | 4 |
Swell 1 Height (m) Direction Period (s) | NW 14 | NW 16 | NW 16 | NW 16 | NW 16 | NW 16 | — | NW 8 | NW 6 | — | NW 12 | WNW 11 | NW 11 | NW 5 | NE 4 | NNW 17 | NW 6 | WNW 5 | NW 18 | NW 19 |
66 | 157 | 163 | 167 | 91 | 39 | — | 257 | 42 | — | 23 | 12 | 5 | 4 | 2 | 29 | 49 | 5 | 51 | 122 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 10 | — | NW 16 | NW 15 | N 14 | NW 13 | NNW 18 | — | NW 16 | NW 15 | NW 21 | — |
— | — | — | — | — | — | — | — | 17 | — | 10 | 8 | 4 | 7 | 32 | — | 39 | 37 | 18 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | N 9 | — | NW 10 | NW 13 | — | — | NW 24 | — | — |
— | — | — | — | — | — | — | — | — | — | — | 1 | — | 4 | 7 | — | — | 22 | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 8 | WNW 7 | NW 6 | NW 5 | NNW 6 | NNW 6 | NW 7 | — | — | NW 5 | WNW 4 | NW 5 | WNW 5 | SE 3 | — | WNW 4 | SW 3 | W 3 | W 5 | W 4 |
616 | 242 | 94 | 100 | 55 | 237 | 501 | — | — | 80 | 19 | 12 | 14 | 1 | — | 37 | 6 | 5 | 25 | 15 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 356 | 184 | 178 | 220 | 131 | 216 | 184 | 0 | 50 | 211 | 186 | 356 | 544 | 184 | 184 | 211 | 211 | 721 | 1346 | 0 |
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.










