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Surf Forecasts:
Derrs surfForecast / WA – Perth City / Australia
48hr Weather and Surf, issued 7 pm Tuesday 16 Dec 2025 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
22.2° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Derrs today?
The current surf forecast for Derrs at 1AM is: 0.9m 15s primary swell from a West-southwest direction and 0.8m 11s secondary swell from a West-southwest direction, 0.6m 4s secondary swell from a Southwest direction (forecast issued at 07:00pm December 16). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 4ft (1.2m) | 14s |
| Afternoon (17 Dec) | 7.5ft (2.3m) | 13s |
| Evening (17 Dec) | 8ft (2.5m) | 11s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 11 | 11 | 11 | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 9 | 9 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 353 | 372 | 372 | 344 | 334 | 508 | 561 | 1830 | 1664 | 1510 | 1455 | 754 | 712 | 690 | 710 | 773 | 341 | 928 | 359 | 252 | 298 | 198 | 168 | 105 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on |
High Tide / height (m) | 7:06PM 0.63 | 7:33PM 0.66 | 8:02PM 0.68 | |||||||||||||||||||||
Low Tide / height (m) | 4:47AM 0.09 | 5:10AM 0.06 | 5:36AM 0.05 | |||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:05 | - | - | - | - | - | - | - | 5:07 | - | - | - | - | - | - | - | 5:07 | - | - |
| Sunset | 7:17 | - | - | - | - | - | - | - | 7:19 | - | - | - | - | - | - | - | 7:19 | - | - | - | - | - | - | - |
 |  | | |  |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 20 | 20 | 20 | 19 | 18 | 19 | 18 | 18 | 18 | 19 | 17 | 16 | 18 | 24 | 24 | 22 | 21 | 24 | 19 | 18 | 21 | 27 | 26 |
| Feels °C (?) | 21 | 19 | 19 | 19 | 16 | 14 | 14 | 13 | 13 | 13 | 14 | 12 | 12 | 14 | 21 | 20 | 17 | 19 | 18 | 13 | 13 | 17 | 25 | 23 |
- Map Icons:
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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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