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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 12 am Tuesday 19 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
10.5° C
(Which is normal for this time of year)How big are the waves at Castletown today?
The current surf forecast for Castletown at 5AM is: 1.9m 7s primary swell from a South direction and 1.1m 7s secondary swell from a Southwest direction (forecast issued at 12:00am May 19). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 6ft (1.9m) | 7s |
| Afternoon (19 May) | 7.5ft (2.3m) | 7s |
| Evening (19 May) | 8ft (2.4m) | 7s |
Table - waves today at Castletown. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Mon night. Very mild (max 15°C on Thu afternoon, min 10°C on Mon night). Winds decreasing (strong winds from the S on Tue afternoon, light winds from the SSW by Wed night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 5 | S 6 | S 7 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 8 | SW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | |
99 | 269 | 318 | 302 | 385 | 485 | 603 | 620 | 495 | 405 | 276 | 143 | 143 | 119 | 145 | 125 | 195 | 300 | 372 | 349 | 307 | 212 | 205 | 142 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | on | on | |
High Tide | 1:20AM5.31m | 1:51PM5.16m | 2:11AM5.24m | 2:46PM4.96m | 3:04AM5.08m | 3:45PM4.71m | ||||||||||||||||||
Low Tide | 7:36AM0.20m | 7:58PM0.52m | 8:29AM0.29m | 8:51PM0.74m | 9:25AM0.45m | 9:47PM1.01m | ||||||||||||||||||
 | |  |  |  | | |  | |  | |  |  | | | | | | | | | | | | |
 | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:21 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:23 | — |
3 | 2 | 2 | — | 1 | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
Temp °C | 10 | 10 | 11 | 11 | 11 | 12 | 11 | 11 | 11 | 10 | 11 | 11 | 13 | 14 | 14 | 13 | 11 | 11 | 11 | 11 | 13 | 14 | 15 | 15 |
2 | 2 | 4 | 4 | 3 | 4 | 3 | 3 | 4 | 3 | 5 | 5 | 8 | 9 | 8 | 10 | 6 | 3 | 4 | 5 | 8 | 9 | 9 | 11 | |
Swell 1 Height (m) Direction Period (s) | SW 5 | SW 7 | E 5 | E 5 | ESE 5 | — | — | — | S 17 | S 16 | SW 16 | — | SW 14 | — | — | — | — | — | — | — | — | — | — | — |
 kJ | 28 | 103 | 16 | 12 | 10 | — | — | — | 6 | 5 | 10 | — | 8 | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 5 | S 6 | S 7 | S 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 8 | SW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 99 | 269 | 318 | 302 | 385 | 485 | 603 | 620 | 495 | 405 | 276 | 143 | 143 | 119 | 145 | 125 | 195 | 300 | 372 | 349 | 307 | 212 | 205 | 142 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 240 | 240 | 176 | 283 | 235 | 241 | 222 | 208 | 180 | 180 | 171 | 180 | 180 | 151 | 151 | 171 | 171 | 235 | 171 | 171 | 178 | 171 | 176 | 141 |
Best forecast wave conditions in Isle of Man | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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