Surf Forecasts:
Castelejo surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 1PM (local time) - 4ft (1.2m), 9s period, NNW swell with 197 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 1.2m 9s and forecast to arrive on Thursday (Aug 06) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 13s period and expected on Thursday (Aug 06) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Thu 6th Aug) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you—this stretch is a real heartbreaker. The entire 16-day window is a write-off for decent surf. There’s not a single day where the conditions line up for a proper paddle. We’re looking at a solid two and a half weeks of nothing good.
The main issue is that the wind is a constant buzzkill. It’s locked in from the NNW and N, blowing cross-onshore or onshore every single day at 12 to 28 mph. That’s just going to tear up any chance of clean faces. The swell is coming from the NW and WNW, which is the right direction for Castelejo, but it’s never enough to overcome the wind.
Looking at the first week, say Wednesday the 5th through to the weekend, the swell is small and weak. We’re talking 1 ft to 4 ft with periods around 5 to 9 seconds. The combined energy is low, barely cracking 100 (135) at best, but mostly sitting in the 60s and 70s. The water is a frigid 67°, which is a solid 4° colder than normal for this time of year—that’s a shock to the system.
The second week, from around the 12th of August onward, the swell actually tries to build. By the 14th we get some size, 5 ft on Friday morning climbing to 6 ft on Saturday, with combined energy jumping into the 300s and 400s (366, 473, 486). That’s a lot of water moving. But the wind just gets worse. By the 15th and 16th, it’s a fresh to strong breeze, 22 to 25 mph, hammering the coast. The wave comment is “poor surf conditions” across the whole board. With that kind of onshore wind and a beach-and-reef setup, this is honestly looking more interesting for kite surfing than paddle surfing. The locals won’t be out for this one.
It’s bleak, but this area is very consistent, so it won’t stay this way forever. Forecasts can change. For now, leave the boards in the car and save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 18°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 18°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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) | WNW 8 | NNW 9 | NNW 5 | NNW 9 | NW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 4 | WNW 8 | WNW 7 | NW 7 | NW 5 | NW 8 | NW 8 | NNW 5 | NNW 7 | NW 9 | NNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 75 | 58 | 74 | 190 | 82 | 191 | 82 | 74 | 111 | 26 | 15 | 34 | 54 | 69 | 77 | 35 | 114 | 33 | 61 | 110 | 71 |
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 | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 7:43PM2.40m | 8:19AM2.28m | 8:50PM2.25m | 9:34AM2.22m | 10:16PM2.18m | 10:59AM2.28m | 11:43PM2.25m | 12:16PM2.45m | 00:55AM2.41m | 1:18PM2.69m | 1:53AM2.59m | 2:11PM2.93m | 2:42AM2.75m | ||||||||
Low Tide | 1:23PM0.63m | 1:56AM0.64m | 2:26PM0.75m | 3:05AM0.76m | 3:50PM0.81m | 4:30AM0.81m | 5:22PM0.73m | 5:54AM0.72m | 6:40PM0.53m | 7:01AM0.54m | 7:41PM0.30m | 7:55AM0.35m | 8:32PM0.09m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:35 | — | — | 8:34 | — | — | 8:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 21 | 20 | 23 | 22 | 20 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 19 | 21 | 21 | 19 |
Feels °C | 20 | 19 | 17 | 17 | 17 | 15 | 20 | 19 | 16 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 16 | 18 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 7 | NW 11 | NNW 10 | NW 8 | NW 11 | NW 7 | WNW 6 | NNW 12 | NNW 10 |
| kJ | 75 | 48 | 36 | 33 | 32 | 31 | 28 | 28 | 26 | 26 | 15 | 34 | 54 | 29 | 38 | 35 | 5 | 26 | 12 | 55 | 71 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | NNW 9 | WNW 7 | WNW 7 | WNW 7 | — | — | — | — | NNW 8 | WNW 6 | N 8 | NNW 11 | — | — | WNW 6 | — | W 6 | NW 13 | WNW 10 | WNW 10 |
| kJ | 40 | 58 | 18 | 15 | 5 | — | — | — | — | 13 | 3 | 5 | 12 | — | — | 20 | — | 19 | 40 | 19 | 58 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | S 14 | S 12 | — | — | — | — | — | — | — | N 11 | — | — | — | W 12 | — | NNW 10 | NW 9 | WNW 5 | — |
| kJ | 20 | 33 | 4 | 3 | — | — | — | — | — | — | — | 2 | — | — | — | 3 | — | 10 | 21 | 3 | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | NNW 5 | NNW 9 | NW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NNW 4 | NNW 4 | N 4 | NW 7 | NW 5 | NW 5 | NW 8 | NNW 5 | NNW 7 | NW 9 | NNW 5 |
| kJ | — | 2 | 74 | 190 | 82 | 191 | 82 | 74 | 111 | 26 | 13 | 26 | 6 | 69 | 77 | 18 | 114 | 33 | 61 | 110 | 56 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 178 | 65 | 65 | 658 | 181 | 73 | 891 | 250 | 179 | 279 | 95 | 9 | 621 | 77 | 77 | 638 | 76 | 9 | 609 | 73 |
Best forecast wave conditions in The Algarve | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castelejo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest