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Derrs Surf Forecast
/ WA – Perth City (29 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Derrs surfForecast / WA – Perth City / Australia
48hr Weather and Surf, issued 1 am Thursday 21 May 2026 AWSTForecast 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
20.9° C
(Which is slightly cooler than normal)How big are the waves at Derrs today?
The current surf forecast for Derrs at 6AM is: 1.7m 14s primary swell from a West-southwest direction (forecast issued at 01:00am May 21). The wind direction is predicted to be glassy and the swell rating is 4.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 6ft (1.8m) | 14s |
| Afternoon (21 May) | 6ft (1.9m) | 14s |
| Evening (21 May) | 5.5ft (1.7m) | 14s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 21°C on Thu morning, min 11°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | SW 14 | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | |
1024 | 1159 | 1301 | 1370 | 1504 | 1850 | 1079 | 1048 | 1708 | 1288 | 1094 | 981 | 981 | 961 | 1021 | 837 | 718 | 578 | 578 | 536 | 536 | 472 | 371 | 371 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-off | cross-off | off | off | off | off | glassy | cross-on | cross-off | off | |
High Tide | 11:27AM0.65m | 11:36AM0.57m | 10:59AM0.49m | |||||||||||||||||||||
Low Tide | 11:32PM0.06m | 00:09AM0.13m | ||||||||||||||||||||||
 | |  |  | | |  |  | | | | | | | | | | | |  | | | | | |
 | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — |
— | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 19 | 19 | 21 | 20 | 18 | 18 | 17 | 16 | 15 | 14 | 16 | 16 | 17 | 17 | 15 | 13 | 12 | 11 | 13 | 17 | 17 | 15 | 14 |
18 | 18 | 18 | 19 | 17 | 14 | 13 | 11 | 11 | 11 | 10 | 11 | 10 | 12 | 12 | 11 | 9 | 8 | 7 | 9 | 15 | 14 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | — | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 |
 kJ | 1024 | 1159 | 1301 | 1370 | 1504 | — | 1079 | 1048 | 1708 | 1288 | 1094 | 981 | 981 | 961 | 1021 | 837 | 718 | 578 | 578 | 536 | 536 | 472 | 371 | 371 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 7 | — | SW 7 | W 18 | — | — | — | — | — | — | — | — | — | SW 18 | SW 18 | SW 18 | W 22 |
| kJ | — | — | — | — | — | — | — | 180 | — | 165 | 6 | — | — | — | — | — | — | — | — | — | 13 | 13 | 12 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SW 14 | SW 6 | SW 7 | SW 7 | — | — | SW 7 | — | — | — | — | ESE 3 | E 3 | ENE 3 | ENE 3 | — | — | SSE 2 | SE 3 |
| kJ | — | — | — | — | — | 1850 | 213 | 233 | 218 | — | — | 99 | — | — | — | — | 1 | 2 | 1 | 1 | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 408 | 627 | 627 | 186 | 186 | 186 | 186 | 186 | 186 | 186 | 186 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 0 | 0 |
Best forecast wave conditions in Perth City Coast | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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