Surf Forecasts:
How big are the waves at Porthtowan today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 5ft (1.6m), 11s period with W swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 5ft (1.5m), 11s period with W swell.
- Evening surf: Evening surf (20 Sep, local time) - 4.5ft (1.3m), 11s period with W swell.
The current surf forecast for Porthtowan at 12PM is: 1.6m 11s primary swell from a West direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 06:00am September 20). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 5ft (1.6m) | 11s |
| Afternoon (20 Sep) | 5ft (1.5m) | 11s |
| Evening (20 Sep) | 4.5ft (1.3m) | 11s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 15°C on Sun morning). Wind will be generally light. | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | WNW 11 | WNW 11 | W 11 | W 11 | W 9 | WNW 10 | WNW 10 | W 12 | W 12 | W 12 | W 17 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 730 | 663 | 606 | 543 | 483 | 483 | 410 | 358 | 364 | 324 | 330 | 274 | 209 | 158 | 143 | 110 | 87 | 131 | 170 | 336 | 397 | 384 | 610 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | on | cross-on | cross | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross |
High Tide | 12:28PM4.15m | 1:29AM4.03m | 2:15PM4.26m | 2:57AM4.30m | 3:22PM4.66m | ||||||||||||||||||
Low Tide | 7:12PM2.45m | 7:56AM2.45m | 8:48PM2.23m | 9:14AM2.11m | 9:48PM1.81m | ||||||||||||||||||
 | |  |  | | |  |  | | | | | | | | | | | | | | | | |
 | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — |
 | — | — | — | — | — | 7:23 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 20 | 20 | 18 | 17 |
Feels °C | 15 | 15 | 13 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 17 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 20 | 21 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | W 12 | WNW 11 | WNW 11 | W 11 | W 11 | W 9 | WNW 10 | WNW 10 | W 12 | W 12 | W 12 | W 11 |
| kJ | 730 | 663 | 606 | 543 | 483 | 483 | 410 | 358 | 364 | 324 | 330 | 274 | 209 | 158 | 143 | 110 | 87 | 131 | 170 | 336 | 397 | 384 | 410 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | N 4 | N 5 | N 5 | N 5 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | W 21 | W 19 | W 18 | W 17 |
| kJ | 8 | 8 | 8 | 8 | 8 | 7 | 1 | 2 | 2 | 2 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 9 | 66 | 246 | 610 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 13 | SW 13 | SW 13 | SW 13 | — | — | — | — | — | — | — | — | — | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | — | — | — | — | — | — | 7 | 7 | 7 | 7 | — | — | — | — | — | — | — | — | — | 6 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 17 | 23 | 22 | 23 | 23 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 11 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 10 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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