Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Marloes Sands surfForecast / Wales – Pembrokeshire / UK
48hr Weather and Surf, issued 11 am Sunday 21 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Marloes Sands surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marloes Sands sea temperature is
11.5° C
(Which is slightly warmer than usual)How big are the waves at Marloes Sands today?
The current surf forecast for Marloes Sands at 4PM is: 2.0m 15s primary swell from a West-southwest direction (forecast issued at 11:00am December 21). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Dec) | 8ft (2.5m) | 15s |
| Afternoon (21 Dec) | 7ft (2.1m) | 15s |
| Evening (21 Dec) | 5ft (1.6m) | 14s |
Table - waves today at Marloes Sands. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||||||
| 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 10 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2881 | 2238 | 1797 | 1337 | 1010 | 811 | 536 | 414 | 172 | 215 | 196 | 153 | 121 | 91 | 91 | 90 | 63 | 52 | 33 | 31 | 28 | 16 | 17 | 16 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | cross- off | off | off | off | cross- off | off | off | off | off | off |
High Tide / height (m) | 6:50AM 5.37 | 7:08PM 5.19 | 7:25AM 5.43 | 7:43PM 5.18 | 8:01AM 5.43 | 8:19PM 5.13 | ||||||||||||||||||
Low Tide / height (m) | 1:15PM 0.77 | 1:27AM 0.78 | 1:51PM 0.76 | 2:02AM 0.79 | 2:28PM 0.80 | 2:38AM 0.85 | ||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||||||
| Sunrise | 8:23 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:12 | - | - | - | - | - | - | - | 4:12 | - | - | - | - | - | - | - | 4:13 | - | - | - | - | - |
 | |  |  | | |  |  |  | | | | | | | | | | |  | | |  | | |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 10 | 10 | 11 | 10 | 10 | 8 | 6 | 7 | 7 | 5 |
| Feels °C (?) | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 4 | 5 | 5 | 6 | 5 | 6 | 5 | 6 | 7 | 7 | 4 | 2 | 0 | 1 | 2 | -1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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