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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 pm 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 6PM is: 1.8m 14s primary swell from a West-southwest direction and 1.3m 5s secondary swell from a South-southwest direction (forecast issued at 01:00pm May 21). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 6ft (1.8m) | 14s |
| Afternoon (21 May) | 6ft (1.8m) | 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 ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 10°C on Sat morning). Winds decreasing (fresh winds from the SSW on Thu afternoon, light winds from the SE by Sat afternoon). | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 | |
1370 | 1301 | 1265 | 1079 | 1048 | 1444 | 1452 | 1164 | 981 | 981 | 961 | 1021 | 837 | 718 | 578 | 578 | 578 | 536 | 472 | 464 | 371 | 309 | 215 | 207 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross-off | off | off | off | off | cross-off | cross-on | cross-off | cross-off | off | off | off | |
High Tide | 11:27AM0.65m | 11:36AM0.57m | 10:59AM0.49m | |||||||||||||||||||||
Low Tide | 11:32PM0.06m | 00:09AM0.13m | 00:27AM0.19m | |||||||||||||||||||||
 | |  |  |  | |  | | | | | | | | | |  | | | | | | | | |
 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — |
 | — | — | 5:25 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | 5:23 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 20 | 18 | 18 | 17 | 16 | 15 | 14 | 16 | 17 | 17 | 17 | 15 | 13 | 12 | 10 | 13 | 15 | 15 | 15 | 14 | 13 | 12 | 12 |
19 | 16 | 13 | 13 | 11 | 10 | 11 | 10 | 11 | 11 | 12 | 12 | 11 | 9 | 8 | 6 | 11 | 12 | 11 | 12 | 11 | 9 | 7 | 7 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 |
 kJ | 1370 | 1301 | 1265 | 1079 | 1048 | 1444 | 1452 | 1164 | 981 | 981 | 961 | 1021 | 837 | 718 | 578 | 578 | 578 | 536 | 472 | 464 | 371 | 309 | 215 | 207 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | WSW 7 | WSW 7 | W 18 | — | SW 7 | — | — | — | — | — | — | — | — | SW 18 | SW 18 | SW 18 | W 22 | SW 16 | WSW 16 | WSW 16 |
| kJ | — | — | — | — | 113 | 159 | 6 | — | 115 | — | — | — | — | — | — | — | — | 13 | 13 | 12 | 9 | 67 | 102 | 99 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 19 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 37 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SSW 5 | SW 6 | SSW 7 | SSE 5 | SW 7 | — | — | SW 7 | — | — | — | ESE 3 | E 2 | — | — | — | — | — | SE 3 | — | ENE 2 | NE 3 |
| kJ | — | 3 | 64 | 190 | 244 | 37 | 179 | — | — | 115 | — | — | — | 1 | 1 | — | — | — | — | — | 1 | — | 1 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 434 | 506 | 627 | 186 | 186 | 86 | 24 | 81 | 186 | 186 | 186 | 187 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Perth City Coast | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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