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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 pm 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 2AM is: 1.9m 8s primary swell from a South-southwest direction and 0.1m 17s secondary swell from a South direction (forecast issued at 06:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5.5ft (1.7m) | 6s |
| Afternoon (20 May) | 4ft (1.2m) | 6s |
| Evening (20 May) | 3.5ft (1.1m) | 7s |
Table - waves today at Castletown. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Very mild (max 16°C on Thu night, min 11°C on Tue afternoon). Winds decreasing (strong winds from the SSW on Tue afternoon, light winds from the SE by Thu night). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | |
635 | 740 | 604 | 411 | 382 | 222 | 166 | 137 | 113 | 111 | 102 | 205 | 263 | 372 | 350 | 244 | 198 | 176 | 113 | 55 | 28 | 42 | 69 | 84 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | on | on | |
High Tide | 1:51PM5.16m | 2:11AM5.24m | 2:46PM4.96m | 3:04AM5.08m | 3:45PM4.71m | 4:03AM4.88m | ||||||||||||||||||
Low Tide | 7:58PM0.52m | 8:29AM0.29m | 8:51PM0.74m | 9:25AM0.45m | 9:47PM1.01m | 10:26AM0.65m | ||||||||||||||||||
 |  |  |  |  | | | |  | | | | |  | | | | | | | | | | | |
 | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — |
 | — | 9:21 | — | — | — | — | — | — | — | 9:22 | — | — | — | — | — | — | — | 9:23 | — | — | — | — | — | 9:24 |
— | — | — | 1 | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 13 | 14 | 14 | 13 | 11 | 11 | 11 | 11 | 13 | 14 | 15 | 15 | 15 | 16 | 15 | 14 | 14 |
3 | 3 | 4 | 6 | 4 | 5 | 4 | 8 | 9 | 10 | 9 | 6 | 4 | 4 | 4 | 8 | 9 | 9 | 12 | 13 | 13 | 12 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | S 16 | — | SW 16 | SSW 8 | SSW 6 | SSW 7 | — | — | — | — | — | — | — | — | — | SSW 6 | SSW 7 | SSW 7 | S 14 | S 14 |
 kJ | — | — | — | — | 5 | — | 10 | 28 | 113 | 111 | — | — | — | — | — | — | — | — | — | 55 | 5 | 5 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSW 9 | — | — | — | — | — | — | — | — | — | — | SW 7 | — | — | — | S 10 |
| kJ | — | — | — | — | — | — | — | — | 29 | — | — | — | — | — | — | — | — | — | — | 12 | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 6 | SSW 6 | SW 6 | W 4 | — | SSW 7 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | — | SSW 5 | SSW 5 | SSW 6 | SSW 6 |
| kJ | 635 | 740 | 604 | 411 | 382 | 222 | 166 | 137 | 7 | — | 102 | 205 | 263 | 372 | 350 | 244 | 198 | 176 | 113 | — | 28 | 42 | 69 | 84 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 225 | 208 | 169 | 171 | 171 | 171 | 279 | 300 | 153 | 151 | 166 | 171 | 178 | 171 | 171 | 227 | 166 | 208 | 241 | 213 | 239 | 141 | 235 | 139 |
Best forecast wave conditions in Isle of Man | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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