Surf Forecasts:
How big are the waves at Derrs today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.0m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.0m), 18s period with WSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 4.5ft (1.4m), 17s period with WSW swell.
The current surf forecast for Derrs at 4PM is: 2.4m 18s primary swell from a West direction and 1.0m 18s secondary swell from a West-southwest direction, 0.9m 12s secondary swell from a West-southwest direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-onshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.0m) | 12s |
| Afternoon (18 Sep) | 3.5ft (1.0m) | 18s |
| Evening (18 Sep) | 4.5ft (1.4m) | 17s |
Table - waves today at Derrs. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Warm (max 24°C on Fri afternoon, min 14°C on Sun night). Winds decreasing (fresh winds from the WNW on Fri night, calm by Sun morning). | |||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 17 | WSW 18 | W 18 | WSW 17 | WSW 16 | WNW 9 | W 16 | W 14 | W 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 13 | WSW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 420 | 283 | 313 | 589 | 3465 | 992 | 1183 | 1351 | 7919 | 8194 | 8034 | 7532 | 6075 | 4257 | 3400 | 1255 | 2121 | 1712 | 1399 | 1132 | 1047 | 1170 | 1881 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | glassy | cross | cross-on | cross-on | cross | cross |
High Tide | 00:33AM0.55m | 3:21AM0.52m | |||||||||||||||||||||
Low Tide | 2:13PM0.12m | 2:32PM0.10m | 2:49PM0.10m | ||||||||||||||||||||
 |  | |  | |  |  |  | | |  | | | | | |  |  | | | | | | |
 | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:10 | — | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — |
Temp °C | 15 | 16 | 22 | 24 | 17 | 15 | 16 | 17 | 17 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 18 | 17 | 16 | 16 |
Feels °C | 14 | 14 | 18 | 19 | 12 | 9 | 10 | 11 | 10 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 15 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | WSW 18 | — | WSW 17 | WSW 16 | WSW 16 | — | — | — | — | — | WSW 13 | WSW 13 | WSW 10 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 13 | WSW 16 |
| kJ | 420 | 283 | 283 | 589 | — | 992 | 1180 | 1327 | — | — | — | — | — | 4257 | 3400 | 817 | 2121 | 1712 | 1399 | 1132 | 1047 | 1170 | 1881 |
Swell 2 Height (m) Direction Period (s) | WSW 18 | WSW 16 | WSW 17 | WSW 12 | — | WSW 12 | — | — | — | — | — | — | — | — | — | WSW 13 | — | — | WSW 13 | W 9 | WSW 13 | W 9 | WSW 16 |
| kJ | 207 | 234 | 313 | 242 | — | 127 | — | — | — | — | — | — | — | — | — | 1255 | — | — | 528 | 230 | 520 | 155 | 452 |
Swell 3 Height (m) Direction Period (s) | — | WNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 8 |
| kJ | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 109 |
Wind waves Height (m) Direction Period (s) | NW 4 | NNE 2 | NW 4 | NW 4 | W 18 | W 7 | W 9 | WNW 9 | W 16 | W 14 | W 14 | WSW 14 | WSW 14 | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 1 | 11 | 32 | 3465 | 623 | 1183 | 1351 | 7919 | 8194 | 8034 | 7532 | 6075 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 13 | 358 | 358 | 358 | 391 | 364 | 463 | 489 | 627 | 1099 | 1894 | 1763 | 1763 | 324 | 261 | 186 | 0 | 6 | 186 | 220 | 104 | 13 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||||
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