Devonport Rivermouth Surf Break

Lat Long: 41.16° S 146.36° E

Devonport Rivermouth Surf Forecast and Surf Report

Issued: 9 pm 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Devonport Rivermouth sea temperature is
12.8°C
0.4° 

Devonport Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Devonport Rivermouth surf forecast from 10 Sep 2026:

  • Best quality surf: Wednesday 16 Sep, 1AM (local time) - 1.5ft (0.5m), 15s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 4PM (local time) - 6.5ft (2.0m), 6s period, NW swell with 301 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 16 Sep, 1AM (local time) - 1.5ft (0.5m), 15s 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 Wednesday (Sep 16) at 1AM. The primary swell is predicted to be 0.5m and 15s period with a secondary swell of 0.3m and 5s. 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 2.0m 6s and forecast to arrive on Monday (Sep 14) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Sep 16) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 16th Sep)1.5ft (0.5m) 15s
Best Surf 1AM (Wed 16th Sep)1.5ft (0.5m) 15s
Most Powerful 4PM (Mon 14th Sep)6.5ft (2.0m) 6s

Table - best surf conditions forecast for Devonport Rivermouth over the next 16 days.


The Lowdown

G’day, Rusty here. Let’s break down the next couple weeks for Devonport Rivermouth. Straight up, it’s a slow period, but there are a few moments where you might want to grab your board. The early days are flat and dreary, so don’t rush out. There’s a gap of a few days with nothing doing, then one pulse of bigger, messy swell mid-period. The real bright spots, if you can wait, are later on.

The first few days, through the 12th and into the weekend, are a total wash-out. We’re talking tiny, weak surf—around 1 foot on Friday morning with a 15-second period, but the energy is next to nothing (36 combined). It’s clean enough with a light cross-off breeze, but there’s just no push. Saturday is the same—flat and glassy, with the swell at 1 foot and energy at 40. It’s all poor conditions, so leave the board at home. Sunday drops even further—0.3 feet to 2 feet, with a junk 5-second period. That’s just bad. We’ve got a solid 3-4 day gap here with no surf worth talking about.

Monday the 14th, things pick up, but it’s rough. We see a jump in size—3 feet in the morning, building to 7 feet by the afternoon—with a 6-second period. The energy is strong (301 combined), but the wind is a fresh cross-shore, which will chop it all up. This isn’t clean surf; it’s messy and blown out. Still poor conditions. Tuesday the 15th cleans up a bit with a cross-off wind, but the size drops to 5 feet and the period stays short at 7 seconds (215 energy). It’s cleaner, but the quality is still just okay. The first real chance at something surfable comes on Wednesday the 16th. We’ve got 1 feet of swell, a 16-second period, and glassy conditions in the morning (86 energy). It’s small, but it’s clean and the long period gives it some life. It’s the first “surfable” call, but it’s still marginal. That’s your pick for the first week, but only for the patient surfer.

After that, it’s another lull. Thursday the 17th is small and choppy again. Friday the 18th brings a bigger pulse—5 feet in the morning, hitting 8 feet by the afternoon with an 8-second period. The energy is strong (756 combined), but the wind is onshore and there’s a cross-chop. This is big, raw, and rough—not for the faint of heart, and probably better for kites than paddle boards. The weekend and early next week are back to small and poor. We’re looking at another several-day gap with no real recommendations.

Now, into the second week, keep an eye on Wednesday the 23rd. There’s a morning window with a light offshore breeze from the SSW, and we have 3 feet of swell from the NNW with a 5-second period. The energy is moderate (75), but the clean conditions make it the most promising surf we’ve seen in a while. It’s not big, but it’s clean and ridable. That’s my standout for the whole outlook. The rest of that week and into the final days is back to tiny, glassy, but flat—2 feet, 1 foot, 0.7 feet—nothing worth getting wet for. The energy stays weak, and the swell is just too small.

So, bottom line: it’s a lean forecast for Devonport Rivermouth. Your best bets are the clean, small windows on Wednesday the 16th and especially Wednesday the 23rd. The 23rd looks like the one for a clean, offshore morning surf. Everything else is too small or too messy. It’s a quiet stretch, but that can always change. Keep the faith.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Fri morning, min 7°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Very mild (max 15°C on Mon morning, min 5°C on Tue night). Winds decreasing (fresh winds from the WNW on Mon morning, calm by Wed morning).

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
NW
16
0.3
NW
15
0.3
NW
15
0.3
NW
16
0.3
NW
16
0.3
NW
16
0.3
NW
15
0.1
NW
15
0.5
NNW
5
1
NNW
5
1
NW
5
2
NW
6
1.7
WNW
7
1.4
WNW
7
0.4
NW
15
0.5
NW
15
0.4
NW
16
0.4
NW
16
0.3
NW
15
Wave Graph
Metric surfscale
Energy kJ
40
36
37
42
40
39
36
8
12
49
57
301
286
168
81
112
86
87
36
Wind (km/h)
15
SSW
5
WSW
15
W
5
S
0
NNW
10
NW
5
SE
5
E
5
NNW
10
NNW
20
WNW
30
WNW
30
W
30
WSW
25
WSW
10
SW
5
WSW
15
W
20
W
Wind State
off
cross-off
cross-off
off
glassy
cross-on
glassy
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
High Tide
10:27PM2.98m
11:19AM2.94m
11:40PM2.97m
12:20PM2.97m
00:47AM3.01m
1:16PM3.04m
1:47AM3.08m
2:06PM3.11m
2:40AM3.15m
2:50PM3.18m
3:27AM3.20m
3:31PM3.22m
Low Tide
4:53AM0.83m
5:29PM1.08m
6:04AM0.87m
6:37PM0.94m
7:08AM0.86m
7:37PM0.78m
8:02AM0.84m
8:27PM0.64m
8:50AM0.84m
9:12PM0.54m
9:32AM0.86m
9:53PM0.49m
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
6:20
6:18
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
6:00
6:00
6:01
6:02
6:04
 mm
2
Temp °C
10
19
19
11
13
12
9
13
13
13
15
14
10
11
11
8
13
15
11
Feels °C
5
14
14
7
9
9
7
12
12
12
9
8
3
3
4
3
9
10
5
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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