Surf Forecasts:
Castelejo surf forecast from 9 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 7AM (local time) - 7ft (2.1m), 8s period, NW swell with 571 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 2.1m 8s and forecast to arrive on Sunday (Aug 16) at 7AM. 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 18s period and expected on Saturday (Aug 15) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sun 16th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get into it for Castelejo.
Straight up, this stretch is looking like a bit of a battle for most of the next week and a half. The finds are few and far between, with the forecast showing a long gap of poor to no-go conditions dominating the first week. We’re looking at a solid week of onshore wind and messy surf before things finally try to clean up.
From now through to the middle of next week, it’s a write-off. Sunday the 9th through to Monday the 17th, expect a lot of moderate to fresh cross-onshore winds from the NNW to NW. Swell hovers around 2 ft to 7 ft, but with that wind on it, the wave comment just says "poor surf conditions" time and again. The combined wave energy builds from a weak 83 to a very strong 683 towards the end, but with the wind, it's all chop and lump. Not worth paddling out.
The first real glimmer of hope arrives on Tuesday the 18th. Tuesday morning looks like the standout of the entire outlook. We’ve got a 6 ft NW swell rolling in with cross-offshore winds from the SSE at just 3 mph. The conditions are forecast as "clean" and overall surf conditions are expected to be good. This is your window. The swell is a bit solid for beginners, over 5 ft, but for anyone with a bit of experience, that clean face off Castelejo (beach and reef) will be a treat. The water is sitting much colder than normal for this time of year, down at 66°, so a thick wetsuit is non-negotiable.
After that, it gets messy again. Wednesday the 19th and Thursday the 20th offer small, marginal surf with light winds and some clean moments on Thursday morning (3 ft), but nothing to get too excited about. Then from Friday the 21st onward, we’re back into poor conditions as the wind picks up and the swell gets jumbled up by fresh breezes.
So, if you can, make a plan for that Tuesday morning, the 18th of August. That’s the one to target. Other than that, it’s a waiting game.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sun morning, min 18°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu morning, min 19°C on Thu night). Mainly strong winds. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 | WNW 7 | NW 8 | NW 7 | NW 7 | NNW 5 | NW 7 | NW 5 | NNW 6 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NNW 6 | WNW 9 | NW 9 | NNW 7 | NW 8 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 101 | 81 | 129 | 77 | 77 | 45 | 73 | 41 | 87 | 47 | 98 | 149 | 118 | 118 | 202 | 139 | 124 | 440 | 359 | 434 | 543 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on |
High Tide | 12:16PM2.45m | 00:55AM2.41m | 1:18PM2.69m | 1:53AM2.59m | 2:11PM2.93m | 2:42AM2.75m | 2:58PM3.11m | 3:26AM2.85m | 3:42PM3.20m | 4:08AM2.88m | 4:23PM3.20m | 4:47AM2.85m | 5:03PM3.09m | ||||||||
Low Tide | 6:40PM0.53m | 7:01AM0.54m | 7:41PM0.30m | 7:55AM0.35m | 8:32PM0.09m | 8:42AM0.18m | 9:17PM-0.05m | 9:25AM0.08m | 9:59PM-0.10m | 10:06AM0.04m | 10:38PM-0.06m | 10:45AM0.09m | 11:15PM0.06m | ||||||||
 | |  | | | | | | | | | | | | | | | | |  |  | |
 | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 8:35 | — | — | 8:34 | — | — | 8:32 | — | — | 8:30 | — | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 20 | 21 | 21 | 20 | 22 | 21 | 20 | 22 | 22 | 21 | 24 | 22 | 20 | 22 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 21 | 19 | 18 | 19 | 19 | 18 | 20 | 19 | 18 | 19 | 19 | 18 | 20 | 18 | 15 | 18 | 17 | 15 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 11 | NNW 10 | NW 7 | NNW 9 | NNW 7 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | — | S 18 | — | SW 16 |
| kJ | 101 | 30 | 38 | 77 | 31 | 37 | 10 | 19 | 39 | 47 | 98 | 149 | 118 | 118 | 62 | 139 | 120 | — | 6 | — | 10 |
Swell 2 Height (m) Direction Period (s) | NNW 12 | N 7 | — | NW 9 | NW 11 | WNW 6 | NNW 10 | NNW 12 | NW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NW 12 | NW 11 | — | — | — | — | — | — |
| kJ | 14 | 1 | — | 41 | 5 | 8 | 10 | 15 | 31 | 38 | 35 | 16 | 9 | 37 | 58 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | N 7 | — | — | W 11 | — | WNW 11 | NNW 13 | NNW 9 | NW 8 | WNW 11 | — | — | NW 14 | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | 3 | — | 11 | 17 | 8 | 3 | 40 | — | — | 7 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WNW 7 | NW 8 | — | NW 7 | NNW 5 | NW 7 | NW 5 | NNW 6 | NW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NW 8 | NW 8 | NW 8 |
| kJ | — | 81 | 129 | — | 77 | 45 | 73 | 41 | 87 | 42 | 32 | 96 | 68 | 54 | 202 | 82 | 124 | 440 | 359 | 434 | 543 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 178 | 20 | 9 | 178 | 92 | 9 | 743 | 76 | 77 | 20 | 20 | 16 | 279 | 65 | 20 | 322 | 65 | 79 | 891 | 468 |
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