Surf Forecasts:
Devonport Rivermouth surf forecast from 11 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1AM (local time) - 1ft (0.3m), 17s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 7AM (local time) - 8ft (2.5m), 7s period, NW swell with 701 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 1AM (local time) - 1ft (0.3m), 17s 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 Thursday (Aug 13) at 1AM. The primary swell is predicted to be 0.3m and 17s period with a secondary swell of 0.7m and 6s. 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 2.5m 7s and forecast to arrive on Wednesday (Aug 12) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Tuesday (Aug 18) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 13th Aug) | 1ft (0.3m) 17s |
| Best Surf | 1AM (Thu 13th Aug) | 1ft (0.3m) 17s |
| Most Powerful | 7AM (Wed 12th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
G’day, Rusty here. Same story, different numbers. This 16-day run for Devonport Rivermouth is a lean one. The spot is inconsistent, and you’re looking at a whole lot of flatness with hardly a ripple worth chasing.
It starts Tuesday the 11th of August with a tiny 1ft northwest windswell and a clean cross-off breeze, but nothing to ride. Wednesday the 12th gets a pulse of 6ft from the NW with a short 8-second period and combined energy of 423 (moderate) – marginal, rainy, and breezy. Could be a beginner window, but it’s not great. Then Thursday the 13th through Tuesday the 25th of August is a brutal two-week gap of leftover NW groundswell at 1ft, periods over 14 seconds, combined energy dropping to weak levels between 10 and 89. There are some glassy mornings (Saturday the 15th and Sunday the 16th are dead calm), but no swell to use.
Water temp is 55°F, about average for the time of year.
The only real wave day is Wednesday the 26th of August. Morning brings 4ft from the NNW with a short 6-second period, combined energy 105 (moderate), glassy from an east breeze – clean and rideable. It gets bigger in the afternoon, 6ft from the NNW with 7-second period, combined energy 307 (moderate), but a NNW wind at 9 mph makes it cross-onshore and choppy. Size is for intermediates and up. Hit the morning glass if you can – it’s your only real shot.
This break doesn’t fire often, and this stretch is a real quiet spell. Forecasts can change, but for now, it’s a whole lot of waiting.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Very mild (max 14°C on Thu morning, min 8°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Fri afternoon, min 9°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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 4 | NW 6 | NW 7 | NW 7 | NW 17 | WNW 6 | NW 16 | NW 16 | NW 16 | NW 16 | NW 16 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 15 | NW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 248 | 371 | 244 | 45 | 99 | 90 | 91 | 94 | 65 | 39 | 39 | 39 | 35 | 33 | 33 | 32 | 32 | 37 | 35 |
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-off | off | glassy | glassy | glassy | cross-off | cross-on | cross-off | cross-off | glassy | cross-off |
High Tide | 9:34PM3.23m | 10:39AM3.12m | 10:41PM3.18m | 11:41AM3.12m | 11:48PM3.14m | 12:41PM3.13m | 00:53AM3.13m | 1:38PM3.16m | 1:56AM3.13m | 2:30PM3.18m | 2:53AM3.14m | 3:18PM3.20m | 3:46AM3.13m | |||||||
Low Tide | 4:05AM0.52m | 4:35PM1.15m | 5:11AM0.57m | 5:44PM1.09m | 6:18AM0.60m | 6:51PM0.99m | 7:20AM0.64m | 7:53PM0.87m | 8:17AM0.68m | 8:47PM0.77m | 9:09AM0.74m | 9:37PM0.69m | ||||||||
 |  |  | |  | |  |  | | | | | | |  | |  | | | | |
 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — |
 | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — |
mm | — | 8 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 11 | 11 | 11 | 14 | 14 | 11 | 14 | 14 | 11 | 13 | 12 | 11 | 13 | 12 | 11 | 12 | 13 | 11 |
Feels °C | 8 | 7 | 6 | 6 | 6 | 10 | 10 | 6 | 9 | 10 | 8 | 10 | 10 | 9 | 11 | 9 | 8 | 10 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | NE 10 | NE 10 | NW 18 | NW 7 | NW 6 | NW 16 | NW 16 | NW 16 | NW 16 | NW 16 | NW 5 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | NE 4 | NW 14 | ENE 4 | NE 4 |
| kJ | 16 | 4 | 12 | 178 | 33 | 94 | 90 | 91 | 94 | 65 | 6 | 39 | 39 | 35 | 33 | 33 | 4 | 32 | 7 | 16 |
Swell 2 Height (m) Direction Period (s) | — | — | NE 10 | NW 19 | NW 17 | NE 10 | NE 10 | N 10 | N 10 | — | NW 16 | NW 4 | NW 4 | — | — | — | NW 14 | — | NW 15 | NW 15 |
| kJ | — | — | 4 | 57 | 45 | 4 | 4 | 2 | 2 | — | 39 | 1 | 1 | — | — | — | 32 | — | 37 | 35 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NE 10 | NE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 6 | NW 7 | NW 7 | W 3 | WNW 6 | NW 6 | NW 5 | WNW 6 | NW 5 | — | — | — | — | SE 3 | ENE 3 | SE 2 | ESE 3 | SE 3 | SE 3 |
| kJ | 46 | 248 | 371 | 244 | 8 | 99 | 47 | 23 | 39 | 29 | — | — | — | — | 3 | 1 | 1 | 5 | 2 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 180 | 180 | 184 | 180 | 0 | 180 | 178 | 184 | 178 | 178 | 131 | 131 | 148 | 131 | 131 | 143 | 131 | 131 | 131 | 131 |
Best forecast wave conditions in North Coast of Tasmania | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Devonport Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest