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Surf Forecasts:

Derrs surf break

Derrs surfForecast / WA – Perth City / Australia

information circle12 Day Weather and Surf, issued 7 am Monday 15 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
18.3° 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 Tuesday (Sep 16) at 5AM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Derrs in the next 12 days are 4.5m 15s and forecast to arrive on Monday (Sep 15) at 11AM. Winds are predicted to be 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 8AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 16th Sep)10ft (3.0m) 14s
Best Surf 5AM (Tue 16th Sep)10ft (3.0m) 14s
Most Powerful11AM (Mon 15th Sep)15ft (4.5m) 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 Light rain (total 9mm), mostly falling on Wed morning. Very mild (max 17°C on Wed morning, min 12°C on Mon night). Winds decreasing (fresh winds from the SW on Mon morning, calm by Mon night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Sat afternoon, min 12°C on Sat morning). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
4
3
2
0
1
1
1
1
1
1
4
3
3
4
1
4
3
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4.5
WSW
4
WSW
3.5
WSW
2.5
WSW
2.2
WSW
1.4
WSW
2.5
WSW
2.5
WSW
2.1
WSW
2
WSW
1.7
WSW
2.5
WSW
2.5
WSW
2.5
WSW
2.5
WSW
2.1
WSW
2
WSW
1.7
SW
1.6
SW
1.6
WSW
1.7
WSW
Period(s) (?)151514131312101111121414151515141413131415
Wave
Graph
(?)Metric surfscale
Energy kJ (?)953279104639241715695361348156810941050115926553121324125501710150910278419571423
Wind
(km/h)
35
SW
30
SW
10
S
10
NNW
15
WNW
25
NW
20
SW
15
SSW
15
SW
15
SW
15
SW
20
SW
10
SW
15
SW
15
SSE
10
SE
20
S
15
SE
10
SE
20
S
20
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		crosscrosscross-
on		cross-
on		oncross-
on		cross-
on		ononcross-
on		oncross-
on		crosscross-
off		cross-
on		cross-
off		cross-
off		crosscross-
off
High Tide
/ height (m)
4:34AM
0.60
5:59AM
0.59
7:01AM
0.58
7:50AM
0.56
10:13PM
0.33
8:31AM
0.53
9:46PM
0.38
9:09AM
0.49
9:47PM
0.43
Low Tide
/ height (m)
2:31PM
0.01
3:03PM
0.02
3:30PM
0.04
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
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Sunrise6:16--6:15--6:13--6:13--6:11--6:09--6:09--
Sunset-6:07--6:08--6:09--6:09--6:10--6:10--6:12-
rain showers
cloud
rain showers
part cloud
clear
part cloud
mod rain
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
1-1---61-------------
Temp. °C141414141515171616161616161716161817192119
Feels °C (?)778121111111312121212141514141615171817
  • 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 The cross-on wind has turned onshore at Derrs (fresh winds from the SW at Ocean Reef 16 km from Derrs). A 4.4m groundswell from the WSW is too big for here

    46 minutes ago Derrs
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<
>
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16 km away, 46 min ago

35 km/h
SW
0.0
18.3
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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