Surf Forecasts:
Devonport Rivermouth surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 20 Sep, 4AM (local time) - 8ft (2.5m), 7s period, NW swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 4AM (local time) - 8ft (2.5m), 7s period, NW swell with 716 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 7PM (local time) - 1.5ft (0.4m), 14s 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 Tuesday (Sep 15) at 7PM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.7m and 6s. The wind is predicted to be 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 Sunday (Sep 20) at 4AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Tuesday (Sep 15) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Tue 15th Sep) | 1.5ft (0.4m) 14s |
| Best Surf | 4AM (Sun 20th Sep) | 8ft (2.5m) 7s |
| Most Powerful | 4AM (Sun 20th Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Alright, Rusty here, let's have a look at what's on offer.
To be straight with you, the next 16 days are looking pretty bleak for a proper surf at Devonport Rivermouth. We're talking a long stretch of tiny, weak waves. The first week is defined by flat spells with only micro-swells from the NW, barely reaching 1ft, with wave energy barely hitting triple digits (max 85). You'll be staring at glassy water with no push for days on end. There's a slight bump in energy around Wednesday the 16th with some clean offshore SW winds on the morning and afternoon (energy hitting 81-85), but the wave height is still only 1ft – too small to get excited about. That's as good as it gets for the first week. From the 18th, the wind gets nasty, blowing strong cross-shore and cross-onshore, raising a messy chop with no wave quality to speak of.
The second week sees a pulse of bigger swell, but it comes with heavy baggage. Sunday the 20th kicks up 7ft swell from the NW with a combined energy of 453, but it's blowing a strong 40 km/h cross-onshore, making it a complete mess – more of a kitesurfing setup than a paddle session. The period is short at 7 seconds, meaning weak, lumpy waves. The following Tuesday the 21st sees even more energy at 530, with 8ft from the WNW, but again, with fresh 30 km/h cross-shore winds, it's just not surfable.
Later in the week, from the 26th, we see some cleaner conditions but the size and direction are still not ideal. The 27th offers 6ft from the NW in the morning, but it's cross-on and the combined energy of 408 is all short-period windswell, so quality will be disappointing. Honestly, there's not a single truly standout session in this entire 16-day window. The combination of poor wind direction and weak, short-period swell means you're better off leaving the boards at home for now.
- Rusty
Short Range ForecastMostly dry. Very mild (max 15°C on Mon morning, min 8°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Thu afternoon, min 4°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 15 | NW 16 | NNW 6 | NNW 5 | NW 5 | WNW 6 | NW 16 | NW 14 | NW 14 | NW 15 | NW 15 | NW 16 | NW 15 | WNW 14 | NW 14 | NW 18 | NW 5 | NW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 36 | 8 | 9 | 29 | 10 | 74 | 68 | 10 | 29 | 72 | 78 | 84 | 62 | 34 | 20 | 7 | 12 | 119 | 30 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | glassy | cross-off | cross-off | cross | cross | cross |
High Tide | 00:47AM3.01m | 1:16PM3.04m | 1:47AM3.08m | 2:06PM3.11m | 2:40AM3.15m | 2:50PM3.18m | 3:27AM3.20m | 3:31PM3.22m | 4:09AM3.21m | 4:08PM3.23m | 4:47AM3.20m | 4:42PM3.21m | |||||||
Low Tide | 7:08AM0.86m | 7:37PM0.78m | 8:02AM0.84m | 8:27PM0.64m | 8:50AM0.84m | 9:12PM0.54m | 9:32AM0.86m | 9:53PM0.49m | 10:10AM0.90m | 10:30PM0.50m | 10:46AM0.96m | 11:04PM0.54m | |||||||
 |  |  | | | |  |  | | | | | | | | | | | | |
 | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — |
 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 13 | 14 | 12 | 15 | 15 | 12 | 11 | 10 | 7 | 12 | 13 | 7 | 15 | 16 | 7 | 15 | 15 | 14 |
Feels °C | 6 | 11 | 13 | 11 | 13 | 11 | 7 | 4 | 3 | 2 | 7 | 8 | 3 | 11 | 10 | 2 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 15 | NW 15 | NNW 4 | NNW 6 | NNW 5 | NE 5 | NE 8 | NW 12 | NW 14 | NW 14 | NW 15 | NW 15 | NW 16 | NW 15 | WNW 14 | NW 14 | NW 18 | — | NW 15 |
| kJ | 36 | 8 | 2 | 29 | 10 | 1 | 2 | 6 | 29 | 72 | 78 | 84 | 62 | 34 | 20 | 7 | 12 | — | 9 |
Swell 2 Height (m) Direction Period (s) | — | — | NNE 4 | ENE 4 | NNE 4 | NW 14 | NE 5 | NE 8 | NE 8 | WNW 6 | NE 8 | N 9 | — | — | — | — | — | — | — |
| kJ | — | — | 1 | 1 | 1 | 8 | 1 | 2 | 2 | 6 | 3 | 1 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | NW 16 | NW 16 | NW 14 | — | NW 14 | NW 16 | — | NE 8 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 9 | 10 | 8 | — | 7 | 10 | — | 3 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | — | — | NW 5 | WNW 6 | WNW 6 | W 6 | SW 3 | WSW 3 | — | SSW 2 | — | WNW 4 | WNW 5 | WNW 5 | NW 5 | NW 5 |
| kJ | — | 1 | — | — | — | 74 | 68 | 53 | 71 | 5 | 1 | — | 1 | — | 28 | 35 | 36 | 119 | 30 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 131 | 144 | 148 | 143 | 216 | 351 | 184 | 211 | 814 | 86 | 0 | 0 | 178 | 184 | 184 | 178 | 178 | 184 | 227 |
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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