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Surf Forecasts:
Grunta Beach surfForecast / Devon (North) / UK
48hr Weather and Surf, issued 12 am Thursday 21 May 2026 BSTForecast update in hr min s Forecast update imminent
Grunta Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grunta Beach sea temperature is
12.0° C
(Which is normal for this time of year)How big are the waves at Grunta Beach today?
The current surf forecast for Grunta Beach at 8AM is: 1.6m 11s primary swell from a West-southwest direction (forecast issued at 12:00am May 21). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 5ft (1.5m) | 11s |
| Afternoon (21 May) | 4.5ft (1.3m) | 10s |
| Evening (21 May) | 4ft (1.2m) | 10s |
Table - waves today at Grunta Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 13°C on Wed night). Winds decreasing (fresh winds from the S on Wed night, calm by Fri afternoon). | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
847 | 754 | 660 | 494 | 400 | 322 | 271 | 276 | 288 | 356 | 253 | 485 | 485 | 423 | 408 | 333 | 326 | 265 | 255 | 250 | 209 | 205 | 197 | 154 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-on | cross | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | glassy | glassy | glassy | on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 10:10AM8.31m | 10:31PM8.32m | 11:07AM7.84m | 11:33PM7.91m | 12:12PM7.47m | |||||||||||||||||||
Low Tide | 3:50AM1.44m | 4:09PM1.76m | 4:49AM1.88m | 5:09PM2.22m | 5:56AM2.25m | 6:18PM2.54m | ||||||||||||||||||
 | |  | | | | |  |  | |  | | |  | | | | | | | | | | | |
 | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:07 | — | — | — | — | — | — | — | 9:09 | — | — | — | — | — | — | — | 9:10 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 14 | 16 | 18 | 18 | 18 | 16 | 16 | 16 | 15 | 16 | 18 | 17 | 18 | 16 | 15 | 15 | 14 | 15 | 16 | 17 | 17 | 17 |
8 | 9 | 10 | 13 | 17 | 18 | 15 | 13 | 14 | 14 | 13 | 15 | 18 | 17 | 19 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | 847 | 754 | 660 | 494 | 400 | 322 | 271 | 276 | 288 | 356 | 253 | 485 | 485 | 423 | 408 | 333 | 326 | 265 | 255 | 250 | 209 | 205 | 197 | 154 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 15 | — | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 4 | — | — | 137 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SE 2 | SE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 42 | 23 | 23 | 23 | 0 | 0 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 12 | 12 | 41 | 41 | 41 |
Best forecast wave conditions in North Devon | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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