
Surf Forecasts:
Castelejo surf forecast from 28 Jul 2026:
- Most powerful swell: Wednesday 29 Jul, 1AM (local time) - 3.5ft (1.1m), 10s period, NW swell with 225 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 1.1m 10s and forecast to arrive on Wednesday (Jul 29) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 6s period and expected on Wednesday (Jul 29) at 1AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Wed 29th Jul) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright, let’s talk about Castelejo. Firing off with a look at the full 16-day window, and honestly, it’s a rough start. The first week and a bit is a write-off – nothing but messy, onshore wind and weak, choppy lines. The winds are either cross-on or straight on from the NNW, which just kills the shape. The waves are small, under 4ft, and the period is short, so there’s no push. The water here is sitting at 66°, which is much colder than normal for this time of year – a solid 4° below average, so you’ll want a thick wetsuit. The combined swell energy is weak, with values like 86 (Tuesday morning) and 90 (Friday afternoon) – not enough to get excited about.
Then we hit a gap of nothing worthwhile from the 28th of July all the way through to the morning of the 10th of August. That’s nearly two weeks of poor conditions. The surf stays poor, the wind stays onshore, and the swell is just not cooperating. The only real flicker of hope comes in the second week. On the 10th of August, Monday morning is still a bit rough with a moderate cross-onshore breeze, but by Monday afternoon, the wind switches to a light cross-offshore from the SW, and the swell is a consistent 6ft from the NNW. The combined energy jumps to 275 (moderate), and the waves clean up nicely. That’s the standout. By Tuesday the 11th of August, you get a moderate offshore breeze from the ESE, with the same 6ft swell and even more energy at 350. The waves will be clean and lined up – that’s the best on offer. Wednesday the 12th of August morning is also pretty good, with a light cross-offshore breeze and 4ft swell, but it’s a bit smaller.
The takeaway: don’t bother paddling out until the 10th of August. The 11th of August Tuesday morning is the pick of the window – clean, offshore wind, and a solid 6ft NNW swell. After that, the wind turns back onshore on Wednesday afternoon, so get it while it’s good.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 18°C on Tue night). Winds increasing (light winds from the NNW on Tue afternoon, fresh winds from the NNW by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Sat morning, min 19°C on Sat night). Mainly fresh winds. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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 10 | NW 10 | NW 9 | NW 9 | NNW 5 | WNW 10 | NW 9 | NNW 6 | NNW 6 | NW 6 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | W 9 | WNW 9 | WNW 9 |
Wave Graph | ||||||||||||||||||||
234 | 225 | 84 | 65 | 41 | 38 | 42 | 115 | 63 | 69 | 178 | 116 | 82 | 107 | 62 | 44 | 77 | 45 | 27 | 69 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 3:09AM2.46m | 3:23PM2.74m | 3:42AM2.53m | 3:55PM2.82m | 4:14AM2.57m | 4:28PM2.86m | 4:47AM2.59m | 5:00PM2.85m | 5:20AM2.58m | 5:33PM2.79m | 5:55AM2.54m | 6:09PM2.70m | ||||||||
Low Tide | 9:02PM0.44m | 9:06AM0.45m | 9:35PM0.34m | 9:38AM0.36m | 10:08PM0.28m | 10:10AM0.32m | 10:40PM0.25m | 10:43AM0.31m | 11:12PM0.26m | 11:16AM0.34m | 11:45PM0.30m | 11:52AM0.41m | 00:22AM0.38m | |||||||
— | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | |
8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 20 | 20 | 18 | 22 | 20 | 19 | 23 | 21 | 22 | 24 | 23 | 20 | 21 | 21 | 20 | 22 | 22 | 20 |
Feels °C | 22 | 17 | 20 | 19 | 15 | 19 | 17 | 15 | 19 | 18 | 17 | 20 | 20 | 17 | 18 | 18 | 17 | 19 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 9 | NNW 8 | WNW 10 | NW 9 | WNW 9 | WNW 8 | WNW 9 | WNW 10 | WNW 9 | W 9 | W 9 | W 9 | W 8 | W 10 | W 9 | WNW 9 | WNW 9 |
234 | 225 | 84 | 65 | 28 | 38 | 42 | 17 | 14 | 8 | 31 | 64 | 59 | 57 | 39 | 37 | 49 | 45 | 27 | 69 | |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | WNW 11 | WNW 11 | WNW 10 | NW 8 | NNW 8 | — | W 12 | WNW 11 | — | E 6 | NNW 10 | NNW 9 | WNW 11 | NNW 8 | — | — | WNW 11 | N 7 |
11 | 9 | 23 | 23 | 39 | 17 | 7 | — | 3 | 13 | — | 1 | 9 | 15 | 22 | 11 | — | — | 23 | 1 | |
Swell 3 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | E 6 | — | — | W 13 | — | — | N 11 | — | — | NNW 8 | — | — | — | N 7 | S 13 |
13 | 7 | 6 | 6 | 1 | 1 | — | — | 3 | — | — | 2 | — | — | 7 | — | — | — | 4 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | NW 5 | NW 4 | NNW 5 | NNW 5 | NW 4 | NNW 6 | NNW 6 | NW 6 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 4 | NNW 4 |
— | — | 19 | 15 | 41 | 31 | 20 | 115 | 63 | 69 | 178 | 116 | 82 | 107 | 62 | 44 | 77 | 20 | 11 | 17 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 653 | 77 | 95 | 761 | 451 | 46 | 390 | 49 | 65 | 613 | 95 | 92 | 609 | 46 | 76 | 178 | 77 |
Best forecast wave conditions in The Algarve | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










