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Castletown Surf Forecast
/ Isle of Man (4 surf breaks) /
Surf Forecasts:
Castletown surfForecast / Isle of Man / UK
48hr Weather and Surf, issued 6 am Thursday 21 May 2026 BSTForecast update in hr min s Forecast update imminent
Castletown surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castletown sea temperature is
10.6° C
(Which is normal for this time of year)How big are the waves at Castletown today?
The current surf forecast for Castletown at 1PM is: 1.9m 7s primary swell from a South-southwest direction (forecast issued at 06:00am May 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 6.5ft (2.0m) | 7s |
| Afternoon (21 May) | 6ft (1.8m) | 6s |
| Evening (21 May) | 4.5ft (1.4m) | 6s |
Table - waves today at Castletown. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 11°C on Thu morning). Winds decreasing (fresh winds from the SSW on Thu morning, light winds from the S by Sat night). | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | S 13 | SSW 6 | SSW 4 | SSW 4 | |
272 | 329 | 395 | 317 | 237 | 182 | 109 | 69 | 37 | 53 | 84 | 78 | 75 | 98 | 119 | 87 | 51 | 22 | 13 | 8 | 4 | 12 | 7 | 11 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | cross-on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | on | |
High Tide | 3:04AM5.08m | 3:45PM4.71m | 4:03AM4.88m | 4:49PM4.46m | 5:06AM4.67m | 5:59PM4.27m | ||||||||||||||||||
Low Tide | 9:25AM0.45m | 9:47PM1.01m | 10:26AM0.65m | 10:49PM1.25m | 11:34AM0.83m | 11:58PM1.42m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | | | | |  | | | | | |  | |
 | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | 5:01 |
 | — | — | — | — | — | 9:23 | — | — | — | — | — | — | — | 9:24 | — | — | — | — | — | — | — | 9:27 | — | 9:28 |
— | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 12 | 14 | 15 | 15 | 15 | 15 | 13 | 13 | 14 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 15 | 16 | 15 | 16 |
5 | 5 | 5 | 7 | 8 | 10 | 11 | 13 | 12 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 12 | 11 | 11 | 11 | 13 | 14 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 7 | SSW 7 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 10 | S 10 | SSW 5 | SSW 5 | SSW 4 | SSW 6 | S 13 | S 8 | S 13 |
 kJ | — | — | — | — | — | — | — | 4 | 9 | 4 | 4 | 4 | 4 | 3 | 4 | 2 | 2 | 22 | 13 | 6 | 4 | 3 | 1 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 7 | — | — | S 14 | S 10 | S 11 | — | S 14 | S 13 | S 14 | SSW 7 | SSW 6 | SSW 6 | S 13 | S 13 | S 13 | S 8 |
| kJ | — | — | — | — | — | — | — | 19 | — | — | 4 | 2 | 2 | — | 4 | 3 | 4 | 5 | 4 | 8 | 3 | 3 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 14 | — | — | — | — | — | S 10 | S 13 | S 13 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | 2 | 3 | 3 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 5 | — | — | SW 4 | SSW 4 | SSW 6 | SSW 4 | SSW 4 |
| kJ | 272 | 329 | 395 | 317 | 237 | 182 | 109 | 69 | 37 | 53 | 84 | 78 | 75 | 98 | 119 | 87 | 51 | — | — | 5 | 4 | 12 | 7 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 176 | 171 | 171 | 171 | 177 | 167 | 235 | 213 | 239 | 141 | 235 | 139 | 208 | 155 | 166 | 139 | 139 | 213 | 166 | 139 | 139 | 208 | 169 | 169 |
Best forecast wave conditions in Isle of Man | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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