Surf Forecasts:
Castelejo surf forecast from 21 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 10AM (local time) - 3.5ft (1.0m), 9s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 4AM (local time) - 7ft (2.1m), 8s period, NW swell with 604 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 10AM (local time) - 3.5ft (1.0m), 9s period with NNW swell.
Best Forecast Surf Conditions for Castelejo this week:
The surf forecast for Castelejo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 28) at 10AM. The primary swell is predicted to be 1.0m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castelejo in the next 16 days are 2.1m 8s and forecast to arrive on Sunday (Jul 26) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Tuesday (Jul 28) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 28th Jul) | 3.5ft (1.0m) 9s |
| Best Surf | 10AM (Tue 28th Jul) | 3.5ft (1.0m) 9s |
| Most Powerful | 4AM (Sun 26th Jul) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for Castelejo.
Straight up, it’s a rough start. We’re looking at a long, flat spell with no real surf to speak of right through the rest of July. The onshore winds are just relentless, mostly from the NNW, blowing cross-on or straight on, and the swell is weak and short-period. You’ll see a lot of poor surf conditions and a lot of zeros in the scorebook. The water is sitting at 68°, which is a bit colder than normal for this time of year, so don’t forget the booties if you’re just going for a paddle.
The first real glimmer of hope comes on Tuesday the 28th of July. The morning shows a light Easterly breeze, 6 mph, swinging cross-offshore. That’s a game-changer. The swell is only 3ft from the NNW, with a period of 9 seconds, so it’s a bit of a groundswell. The combined energy is moderate (172), and for the first time, the conditions are described as clean. You’ll get surfable waves, but it’s very ordinary – not a standout, but it’s the first window we’ve got.
The next little window pops up on Wednesday the 5th of August. Morning again, with a light ESE breeze, 6 mph, blowing straight offshore. That’s the wind direction you want to see. The swell is 3ft from the NNW, period of 6 seconds, so it’s short-period windswell, but with that offshore wind, it’ll be clean. Combined energy is moderate (122). Again, it’s not firing, but it’s surfable.
Honestly, nothing in this 16-day stretch is a true standout. The best of a bad bunch is the morning of Tuesday the 28th of July, with that cross-offshore wind making things clean, and the morning of Wednesday the 5th of August, with the offshore wind. The swell is small, and the quality is just "very ordinary." If you’re desperate for a paddle, those are your windows. For the rest of the time, the wind is a nightmare, and the surf is poor. It’s not looking like a great run for Castelejo right now.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 18°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 18°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 6 | NW 5 | NW 6 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 69 | 79 | 65 | 52 | 52 | 44 | 49 | 40 | 43 | 38 | 69 | 116 | 153 | 221 | 532 | 509 | 365 | 441 | 187 | 150 | 101 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | on | on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 8:44PM2.23m | 9:20AM2.12m | 9:49PM2.06m | 10:28AM2.07m | 11:04PM1.99m | 11:39AM2.10m | 00:14AM2.02m | 12:40PM2.19m | 1:10AM2.12m | 1:29PM2.33m | 1:55AM2.24m | 2:11PM2.48m | 2:34AM2.36m | ||||||||
Low Tide | 2:21PM0.80m | 2:56AM0.83m | 3:27PM0.94m | 3:59AM0.95m | 4:45PM0.99m | 5:12AM0.99m | 6:01PM0.95m | 6:18AM0.94m | 7:00PM0.84m | 7:11AM0.83m | 7:47PM0.70m | 7:54AM0.70m | 8:26PM0.57m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | 8:52 | — | — | 8:51 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 22 | 21 | 20 | 22 | 22 | 21 |
Feels °C | 20 | 20 | 18 | 19 | 16 | 16 | 16 | 16 | 16 | 18 | 17 | 16 | 19 | 17 | 15 | 19 | 17 | 16 | 21 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 7 | WNW 10 | NW 7 | NNW 7 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NW 7 | — | — | NW 8 | — | NW 13 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 69 | 21 | 65 | 26 | 32 | 16 | 16 | 16 | 15 | 14 | 13 | 7 | 153 | — | — | 509 | — | 7 | 187 | 150 | 101 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | W 7 | WNW 10 | WNW 5 | SW 13 | NNW 9 | S 12 | S 12 | S 12 | — | — | — | W 11 | — | — | — | — | — | WNW 9 | WNW 9 | NNW 10 |
| kJ | 23 | 4 | 39 | 17 | 7 | 8 | 3 | 3 | 3 | — | — | — | 2 | — | — | — | — | — | 8 | 16 | 39 |
Swell 3 Height (m) Direction Period (s) | WNW 7 | SW 14 | S 14 | WNW 10 | N 9 | S 13 | N 9 | N 9 | S 12 | — | — | — | — | — | — | — | — | — | NNW 12 | NW 11 | SE 7 |
| kJ | 5 | 8 | 4 | 32 | 2 | 3 | 2 | 2 | 3 | — | — | — | — | — | — | — | — | — | 14 | 32 | 11 |
Wind waves Height (m) Direction Period (s) | — | NW 7 | — | NW 7 | NW 7 | NW 6 | NW 5 | NW 6 | NW 5 | NW 5 | NW 6 | NW 6 | — | NW 8 | NW 8 | — | NNW 8 | NNW 8 | — | — | — |
| kJ | — | 79 | — | 52 | 52 | 44 | 49 | 40 | 43 | 38 | 69 | 116 | — | 221 | 532 | — | 365 | 441 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 254 | 9 | 9 | 713 | 399 | 373 | 178 | 77 | 327 | 465 | 390 | 9 | 732 | 65 | 65 | 896 | 65 | 9 | 97 | 9 |
Best forecast wave conditions in The Algarve | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Castelejo Surf forecast
The above surf forecast table for Castelejo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castelejo can be found by selecting the local surf guide option on the grey menu. Our Castelejo 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 (Castelejo) 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 Castelejo 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.
Castelejo is 25 km (16 miles) from Lagos. If you plan a holiday in The Algarve, look for hotels and other accommodation in Lagos. Lagos has rooms for a wide range of budgets as well as car hire and transport links.
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