Surf Forecasts:
Castaways surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 11AM (local time) - 4.5ft (1.3m), 14s period, SSW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 5PM (local time) - 6ft (1.8m), 16s period, SSW swell with 1,664 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 2AM (local time) - 3.5ft (1.1m), 15s period with SSW swell.
Best Forecast Surf Conditions for Castaways this week:
The surf forecast for Castaways over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 2AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 1.0m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Castaways in the next 16 days are 1.8m 16s and forecast to arrive on Wednesday (Aug 19) at 5PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (+05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 26th Aug) | 3.5ft (1.1m) 15s |
| Best Surf | 11AM (Wed 26th Aug) | 4.5ft (1.3m) 14s |
| Most Powerful | 5PM (Wed 19th Aug) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for Castaways over the next 16 days.
The Lowdown
Alright, Rusty here again with a look at Castaways. This reef spot loves a solid south-west groundswell, and we’ve got one brewing – but you’ll need to hold your horses. The first few days are a washout with onshore wind and messy surf. The water’s sitting at about 85°, right where you’d expect it for this time of year.
The first decent chance shows up on Wednesday the 26th of August. The morning is glassy with a clean 4ft SSW swell, a nice 14-second period, and moderate energy. It’s an advanced wave, so this one’s for the experienced crew. The glassy conditions hold through Thursday the 27th of August morning as well, with a similar 5ft SSW swell.
The real standout comes at the end of the month. Saturday the 29th of August afternoon turns glassy with a 6ft SSW swell and a super long 20-second period. That’s proper groundswell, and it’s going to unload on the reef. Then Sunday the 30th of August morning is the big one: a glassy, clean 8ft SSW swell with an 18-second period and massive energy. That is expert-only territory, but it will be phenomenal. After that, the size drops and the wind turns unfriendly through early September.
The session to mark on the calendar is the morning of Saturday the 30th of August. It’s the peak of the window: big, clean, and powerful. Crowds show up sometimes when it’s this good, so paddle out early. Rusty, out.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed night. Warm (max 28°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun afternoon. Warm (max 28°C on Sun afternoon, min 27°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 15 | SSW 15 | S 14 | SSE 10 | SSE 10 | SSE 10 | S 14 | S 13 | S 13 | SSE 9 | SSE 9 | SSE 9 | S 16 | SSE 8 | S 14 | SSE 8 | SSW 15 | SSW 16 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1508 | 1664 | 1077 | 744 | 694 | 425 | 512 | 383 | 372 | 356 | 495 | 262 | 227 | 227 | 251 | 179 | 203 | 202 | 339 | 481 | 581 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | glassy |
High Tide | 4:27PM0.85m | 5:51AM0.74m | 4:37PM0.76m | 7:09AM0.66m | 4:24PM0.68m | 11:21AM0.67m | 12:02PM0.76m | 11:00PM0.58m | 12:26PM0.85m | 11:55PM0.67m | 12:49PM0.93m | 00:31AM0.77m | |||||||||
Low Tide | 10:38AM0.44m | 11:08PM0.22m | 11:03AM0.51m | 11:44PM0.29m | 11:30AM0.59m | 00:46AM0.36m | 3:48AM0.38m | 6:59PM0.50m | 5:20AM0.31m | 6:55PM0.44m | 6:02AM0.24m | 7:06PM0.37m | |||||||||
 |  |  | |  | | | | | | |  | |  |  | | | | | | | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — |
mm | — | — | 1 | — | 1 | 3 | — | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 |
Feels °C | 31 | 30 | 31 | 30 | 29 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 30 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 15 | SSW 15 | SSE 8 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | S 13 | S 13 | SSE 9 | SSE 9 | SSE 9 | S 16 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSW 15 |
| kJ | 1508 | 1664 | 1077 | 744 | 232 | 425 | 512 | 383 | 314 | 356 | 495 | 262 | 227 | 227 | 251 | 179 | 169 | 202 | 212 | 165 | 581 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSE 9 | SSE 8 | SSE 8 | S 14 | SSW 13 | S 17 | SSW 15 | S 14 | SE 10 | SE 9 | S 13 | S 12 | S 18 | SW 16 | S 15 | S 14 | SSW 14 | SSW 15 | SSW 16 | SSE 8 |
| kJ | 226 | 252 | 273 | 254 | 694 | 299 | 268 | 355 | 372 | 130 | 123 | 161 | 144 | 225 | 65 | 161 | 203 | 143 | 339 | 481 | 140 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | NW 9 | NW 10 | NW 10 | NW 9 | S 18 | SSW 13 | S 18 | WNW 7 | S 9 | S 23 | S 20 | S 18 | SSW 12 | S 12 | SW 14 | SW 15 | SW 15 | NW 9 | SW 13 | NW 10 |
| kJ | 452 | 19 | 24 | 24 | 22 | 103 | 99 | 162 | 5 | 126 | 94 | 128 | 164 | 47 | 23 | 100 | 107 | 56 | 21 | 84 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 9 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 212 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 454 | 207 | 207 | 181 | 181 | 181 | 181 | 181 | 65 | 181 | 207 | 207 | 181 | 207 | 207 | 207 | 2086 | 207 | 462 | 207 | 0 |
Best forecast wave conditions in Huvadhoo Atoll | |||||||||||||||||||||
Best forecast wave conditions in Maldives | |||||||||||||||||||||
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Information about the Castaways Surf forecast
The above surf forecast table for Castaways provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castaways can be found by selecting the local surf guide option on the grey menu. Our Castaways surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Castaways) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Castaways may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Castaways is 97 km (60 miles) from the city of Gan. If you plan a holiday in Huvadhoo Atoll, look for hotels and other accommodation in Gan. Gan has rooms for a wide range of budgets as well as car hire and transport links.
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