Surf Forecasts:
How big are the waves at Porthtowan today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 4ft (1.2m), 11s period with W swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 4ft (1.2m), 10s period with W swell.
- Evening surf: Evening surf (13 Aug, local time) - 3.5ft (1.1m), 10s period with W swell.
The current surf forecast for Porthtowan at 2AM is: 1.0m 10s primary swell from a West direction (forecast issued at 06:00pm August 12). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 4ft (1.2m) | 11s |
| Afternoon (13 Aug) | 4ft (1.2m) | 10s |
| Evening (13 Aug) | 3.5ft (1.1m) | 10s |
Table - waves today at Porthtowan. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 16°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the N by Sat morning). | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | |||||||||||||||||
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 9 | WSW 9 | W 9 | W 9 | W 10 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 9 | WNW 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 139 | 144 | 180 | 180 | 192 | 279 | 319 | 290 | 284 | 234 | 228 | 181 | 173 | 166 | 159 | 155 | 185 | 240 | 202 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | glassy | glassy | cross-on | on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on |
High Tide | 5:47PM6.47m | 6:11AM6.33m | 6:31PM6.76m | 6:54AM6.50m | 7:13PM6.86m | ||||||||||||||
Low Tide | 00:17AM0.14m | 12:34PM0.15m | 1:00AM-0.06m | 1:15PM0.01m | |||||||||||||||
 | |  | | | | | | |  | | | | | | | | |  | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | 8:45 | — | — | — | — | — | — | — | 8:44 | — | — | — | — | — | — | — | 8:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 25 | 22 | 20 | 20 | 19 | 21 | 21 | 22 | 21 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 18 | 17 |
Feels °C | 25 | 26 | 23 | 21 | 21 | 19 | 20 | 20 | 22 | 21 | 20 | 20 | 20 | 20 | 21 | 20 | 19 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | W 9 | WSW 9 | W 9 | W 9 | W 10 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 9 | WNW 8 | WNW 8 |
| kJ | 139 | 144 | 180 | 180 | 192 | 279 | 319 | 290 | 284 | 234 | 228 | 181 | 173 | 166 | 159 | 155 | 185 | 240 | 202 |
Swell 2 Height (m) Direction Period (s) | ESE 5 | E 5 | SSE 4 | ESE 5 | WNW 12 | E 5 | E 5 | E 5 | E 4 | E 4 | E 4 | E 4 | — | S 13 | S 13 | S 13 | S 13 | S 13 | SW 13 |
| kJ | 43 | 23 | 1 | 8 | 48 | 8 | 7 | 4 | 4 | 1 | 1 | 2 | — | 3 | 3 | 3 | 3 | 3 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SE 5 | S 10 | — | — | — | S 11 | S 11 | S 11 | S 11 | S 11 | S 13 | S 11 | — | — | S 10 |
| kJ | — | — | — | — | 1 | 2 | — | — | — | 2 | 2 | 2 | 2 | 2 | 3 | 2 | — | — | 2 |
Wind waves Height (m) Direction Period (s) | SE 3 | SE 3 | — | — | — | — | — | NW 2 | — | — | — | — | — | — | WNW 3 | W 4 | — | — | — |
| kJ | 6 | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 8 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 10 | 20 | 20 | 20 | 218 | 34 | 17 | 17 | 17 | 17 | 17 | 34 | 40 | 23 | 23 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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