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Surf Forecasts:

Derrs surf break

Derrs surfForecast / WA – Perth City / Australia

information circle12 Day Weather and Surf, issued 1 pm Thursday 18 Sep 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Derrs surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Derrs sea temperature is
18.4° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Derrs this week:

The surf forecast for Derrs over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 2AM. The primary swell is predicted to be 2.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Derrs in the next 12 days are 3.0m 15s and forecast to arrive on Friday (Sep 19) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Sep 22) at 5AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 20th Sep)8ft (2.4m) 14s
Best Surf 2PM (Mon 22nd Sep)5.5ft (1.7m) 19s
Most Powerful 2PM (Fri 19th Sep)10ft (3.0m) 15s

Table - best surf conditions forecast for Derrs over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 19°C on Sun morning, min 13°C on Sat morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Tue afternoon, min 14°C on Sun night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
2
4
2
4
3
0
4
3
2
3
4
4
4
4
4
4
4
3
4
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
WSW
2.5
WSW
3
WSW
2.5
WSW
2.4
WSW
2.1
WSW
1.8
WSW
1.7
SW
1.6
SW
1.6
SW
1.7
WSW
1.5
WSW
1.7
WSW
2.2
WSW
2
WSW
2
WSW
2.1
WSW
2.2
WSW
2.3
WSW
1.9
WSW
2.2
WSW
Period(s) (?)141415151414141313131519181716161616161416
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3029302933613114241217101222102782886714231694204729682110200820822510261514552441
Wind
(km/h)
20
SW
20
SW
5
SSE
15
SSW
10
ESE
5
SSE
20
S
10
SE
10
ESE
10
SSE
20
ESE
20
ENE
15
ESE
20
E
20
NE
10
E
15
ENE
15
N
5
WSW
10
NE
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscross-
on		cross-
off		crosscross-
on		cross-
off		cross-
off		crosscross-
off		offcross-
off		offoffoffoffcross-
off		oncross-
off		cross
High Tide
/ height (m)
7:50AM
0.56
10:13PM
0.33
8:31AM
0.53
9:46PM
0.38
9:09AM
0.49
9:47PM
0.43
9:43AM
0.43
9:54PM
0.48
10:14AM
0.38
10:02PM
0.53
10:38AM
0.32
10:12PM
0.56
10:31AM
0.27
Low Tide
/ height (m)
3:50PM
0.09
4:00PM
0.14
1:33AM
0.31
3:57PM
0.19
2:41AM
0.28
3:40PM
0.23
3:30AM
0.25
3:23PM
0.25
4:14AM
0.22
3:14PM
0.25
4:57AM
0.21
3:08PM
0.25
5:41AM
0.21
Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise--6:11--6:09--6:09--6:07--6:05--6:05--6:03
Sunset6:09--6:10--6:10--6:12--6:13--6:13--6:14--
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C161616171617181619212020242222262424282525
Feels °C (?)111315141316151318191817221918242120262222
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for WA - Perth City

  1. weather stationWind Update Wind reports 16 km away suggest it is still onshore at Derrs (moderate winds from the SW at Ocean Reef). A 2.9m groundswell from the WSW

    46 minutes ago Derrs
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16 km away, 46 min ago

24 km/h
SW
0.0
18.4
Air / Water (°C)
Please reload the page to see if there are any 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 Derrs 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.

View detailed surf forecast for Derrs at:
surf-forecast.com

Information about the Derrs Surf forecast

The above surf forecast table for Derrs provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Derrs can be found by selecting the local surf guide option on the grey menu. Our Derrs 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 (Derrs) 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 Derrs 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.

Are you planning a holiday in Perth City Coast? If you are looking for accommodation near Derrs, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 41 km (25 miles) away. Other places in and around Perth City Coast where you can find information about places to rent, and car hire include Fremantle which is 48 km (30 miles) away, Canning Vale, Gosnells and Kwinana.

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