Surf Forecasts:
Devonport Rivermouth surf forecast from 21 Jul 2026:
- Most powerful swell: Friday 24 Jul, 7PM (local time) - 7ft (2.1m), 7s period, WNW swell with 465 kJ wave energy.
Best Forecast Surf Conditions for Devonport Rivermouth this week:
The most powerful waves expected at Devonport Rivermouth in the next 16 days are 2.1m 7s and forecast to arrive on Friday (Jul 24) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Jul 23) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 24th Jul) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.
The Lowdown
Alright, mates, Rusty here. Let’s break down what’s happening at Devonport Rivermouth.
Looking at the next 16 days, it’s a rough patch. There’s a big gap of flat or junk surf to start. The water is sitting at about 56°, which is pretty average for the season.
The first time you might even think about paddling out is Monday, August 3rd. The afternoon shows a 5ft swell from the NNW, but it’s a short-period 6-second wind swell, with moderate energy (252). The sea is glassy, which is a major plus, but the waves are just ordinary. It’s a tiny window, and it’s not gonna be great.
Before that, from July 22nd through the end of the month, it’s poor. There’s a few pulses, like a 6ft wave on the 24th (Friday afternoon) with 307 energy, and another 6ft on the 27th, but the wind is howling from the W or WNW at 15-22 mph, messing up the surface. The 5ft on the afternoon of the 23rd had 277 energy, but again, a fresh breeze was on it. For a river mouth point like this, that short-period stuff (5-6 seconds) just doesn’t have the punch.
The 4th of August has a tiny 1ft pulse with a long 17-second period, but the energy is only 100 – barely a ripple. After that, it fades to nothing.
The best on offer? It’s a sad call, but the afternoon of the 3rd of August is your only shot. Glassy water and 5ft waves. It’s a beginner-friendly size, but the quality is low. It’s the best of a bad lot. This spot is inconsistent, and this forecast shows exactly why. It’s a blank run, plain and simple.
Rusty, out.
Short Range ForecastLight rain (total 5mm), mostly falling on Wed morning. Very mild (max 13°C on Fri afternoon, min 6°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Sat afternoon, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | NW 6 | NW 6 | WNW 6 | NW 16 | WNW 6 | W 7 | NW 16 | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | WNW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NNW 6 | NNW 5 | NW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 106 | 114 | 68 | 38 | 195 | 146 | 38 | 307 | 297 | 113 | 41 | 49 | 58 | 57 | 43 | 156 | 293 | 159 | 30 | 17 | 9 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross | cross-off |
High Tide | 5:52PM3.11m | 6:32AM2.92m | 6:32PM3.08m | 7:18AM2.89m | 7:11PM3.06m | 8:03AM2.88m | 7:51PM3.05m | 8:47AM2.89m | 8:33PM3.03m | 9:32AM2.90m | 9:17PM3.00m | 10:17AM2.92m | 10:03PM2.97m | ||||||||
Low Tide | 11:42AM1.07m | 00:14AM0.84m | 12:23PM1.20m | 00:55AM0.85m | 1:04PM1.29m | 1:36AM0.85m | 1:45PM1.35m | 2:17AM0.85m | 2:28PM1.39m | 3:00AM0.84m | 3:14PM1.40m | 3:44AM0.83m | 4:02PM1.41m | ||||||||
 |  |  | |  | |  |  |  | | | | | | | | | | | |  | |
 | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — |
 | — | 5:09 | — | — | 5:10 | — | — | 5:10 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — |
mm | 3 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 11 | 7 | 9 | 8 | 8 | 9 | 13 | 13 | 13 | 14 | 12 | 14 | 14 | 12 | 14 | 14 | 11 | 13 | 14 | 10 |
Feels °C | 7 | 5 | 1 | 1 | 0 | 2 | 3 | 7 | 8 | 9 | 10 | 8 | 10 | 11 | 8 | 9 | 9 | 7 | 10 | 11 | 7 |
Swell 1 Height (m) Direction Period (s) | NNE 10 | NNE 10 | NW 11 | NW 16 | NW 15 | NW 15 | NW 16 | — | — | — | — | NW 11 | NW 11 | NW 11 | NW 11 | N 15 | — | NW 13 | NNW 6 | NNW 5 | NW 5 |
| kJ | 10 | 10 | 5 | 38 | 78 | 83 | 38 | — | — | — | — | 5 | 5 | 5 | 5 | 4 | — | 7 | 30 | 17 | 3 |
Swell 2 Height (m) Direction Period (s) | NW 12 | NW 12 | NE 10 | NE 10 | NE 10 | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | NW 11 | WNW 10 | NW 16 |
| kJ | 6 | 5 | 4 | 4 | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 19 | 11 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 17 | NW 16 | NW 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 12 | 10 | 4 |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 6 | WNW 6 | WNW 6 | WNW 6 | W 7 | W 4 | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 6 | WNW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | — | W 3 | SSW 2 |
| kJ | 106 | 114 | 68 | 72 | 195 | 146 | 34 | 307 | 297 | 113 | 41 | 49 | 58 | 57 | 43 | 156 | 293 | 159 | — | 2 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 180 | 180 | 180 | 180 | 360 | 178 | 184 | 211 | 178 | 178 | 178 | 184 | 220 | 184 | 239 | 283 | 180 | 86 | 50 | 131 | 178 |
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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