Surf Forecasts:
How big are the waves at Castletown today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 0.5ft (0.1m), 13s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 0.5ft (0.1m), 13s period with S swell.
The current surf forecast for Castletown at 9PM is: 0.1m 13s primary swell from a South direction (forecast issued at 06:00pm August 21). An open ocean swell of 1.0m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 0.5ft (0.1m) | 13s |
| Evening (21 Aug) | 0.5ft (0.1m) | 13s |
Table - waves today at Castletown. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Sun afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri night, calm by Sun afternoon). | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||
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) | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 15 | S 14 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off |
High Tide | 6:37PM3.86m | 7:21AM3.74m | 8:04PM3.86m | 8:51AM3.78m | 9:21PM4.08m | ||||||||||||||
Low Tide | 00:58AM1.83m | 1:37PM1.92m | 2:32AM1.83m | 3:01PM1.86m | |||||||||||||||
 |  |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 8:36 | — | — | — | — | — | — | — | 8:34 | — | — | — | — | — | — | — | 8:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 16 | 16 |
Feels °C | 12 | 9 | 7 | 9 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 15 | S 14 | S 15 | S 15 | S 15 | S 15 | S 13 | S 14 | NNW 3 | — | S 13 |
| kJ | — | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 4 | 1 | — | 4 |
Swell 2 Height (m) Direction Period (s) | S 5 | — | — | — | — | — | — | — | — | S 12 | — | — | — | S 12 | S 15 | S 14 | S 14 | S 13 | — |
| kJ | 1 | — | — | — | — | — | — | — | — | 3 | — | — | — | 3 | 4 | 4 | 4 | 4 | — |
Swell 3 Height (m) Direction Period (s) | S 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 3 | — | — | — |
| kJ | 3 | 11 | 56 | 64 | 50 | 39 | 39 | 39 | 48 | 44 | 37 | 29 | 16 | 9 | 5 | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 233 | 233 | 233 | 233 | 233 | 233 | 233 | 233 | 233 | 251 | 233 | 233 | 233 | 233 | 233 | 225 | 269 | 222 | 171 |
Best forecast wave conditions in Isle of Man | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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