Surf Forecasts:
Castelejo surf forecast from 1 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 1PM (local time) - 3.5ft (1.0m), 10s period, NNW swell with 188 kJ wave energy.
Best Forecast Surf Conditions for Castelejo this week:
The most powerful waves expected at Castelejo in the next 16 days are 1.0m 10s and forecast to arrive on Thursday (Aug 06) at 1PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Thu 6th Aug) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Castelejo over the next 16 days.
The Lowdown
Alright, Rusty here, and I gotta be straight with you. Looking at the charts for the next couple of weeks, it's a tough one. We've got a solid 16-day window, but the surf is just not cooperating. The water is sitting at 66° with a 4° anomaly, so it's running much colder than you'd expect for this time of year. That's a real kick in the teeth.
The only spot that's even on the radar is Castelejo, a beach and reef setup that's very consistent. The trouble is, the swell is weak and the wind is a mess. From Saturday, August 1st, right through to the end of the window, we're looking at a long stretch of poor surf conditions. The combined energy of all swells is mostly in the low double or triple digits—between 52 and 275—so it's a weak to moderate energy at best, but it never actually translates into a decent wave. The swell is small, mostly hanging around 2 ft to 4 ft, and the period is short, between 5 and 9 seconds, so it's just wind slop. The wind is almost always cross-on or onshore, mainly from the north or northwest, with speeds of 6 mph to 25 mph, turning the ocean into a choppy, lumpy mess. There's not a single session that's rated as good.
Given the constant cross-onshore wind and the short-period, messy swell, this setup at Castelejo looks more interesting for kite surfing than paddle surfing. It's a blank run, I'm afraid. The forecasts can change, but for now, I'd leave the boards at home.
Rusty, signing out.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 18°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat night, light winds from the NW by Mon morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Tue morning, min 18°C on Wed night). Winds increasing (light winds from the NNW on Tue morning, fresh winds from the N by Thu night). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | W 9 | W 9 | NNW 6 | NNW 6 | W 9 | W 10 | W 9 | W 9 | WNW 7 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NNW 5 | NNW 5 | NW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 79 | 76 | 82 | 41 | 54 | 49 | 45 | 43 | 48 | 111 | 99 | 70 | 75 | 47 | 41 | 36 | 53 | 175 | 59 | 44 | 27 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | on | on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:00PM2.85m | 5:20AM2.58m | 5:33PM2.79m | 5:55AM2.54m | 6:09PM2.70m | 6:34AM2.47m | 6:51PM2.56m | 7:21AM2.38m | 7:43PM2.40m | 8:19AM2.28m | 8:50PM2.25m | 9:34AM2.22m | 10:16PM2.18m | ||||||||
Low Tide | 10:43AM0.31m | 11:12PM0.26m | 11:16AM0.34m | 11:45PM0.30m | 11:52AM0.41m | 00:22AM0.38m | 12:33PM0.51m | 1:04AM0.50m | 1:23PM0.63m | 1:56AM0.64m | 2:26PM0.75m | 3:05AM0.76m | 3:50PM0.81m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 8:43 | — | — | 8:42 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 20 | 21 | 20 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 22 | 21 | 20 | 22 | 22 | 20 |
Feels °C | 18 | 18 | 16 | 18 | 19 | 19 | 22 | 22 | 23 | 21 | 21 | 19 | 19 | 18 | 17 | 17 | 16 | 15 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 9 | W 9 | NNW 6 | W 9 | W 9 | WNW 7 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 10 | NNW 9 | WNW 10 | NNW 9 | NNW 8 | NNW 8 |
| kJ | 79 | 76 | 56 | 39 | 54 | 29 | 45 | 43 | 48 | 111 | 99 | 70 | 75 | 47 | 41 | 33 | 46 | 52 | 45 | 27 | 21 |
Swell 2 Height (m) Direction Period (s) | NW 9 | NNW 10 | NNW 9 | WNW 11 | NNW 8 | W 10 | NW 6 | N 7 | WNW 9 | N 8 | N 8 | NNW 10 | NW 10 | NNW 9 | NNW 9 | NNW 8 | WNW 10 | NW 10 | W 9 | WNW 9 | WNW 9 |
| kJ | 3 | 9 | 8 | 22 | 6 | 49 | 8 | 4 | 33 | 1 | 1 | 11 | 26 | 35 | 30 | 28 | 32 | 24 | 43 | 28 | 27 |
Swell 3 Height (m) Direction Period (s) | N 9 | — | — | NNW 8 | — | NNW 8 | NNW 7 | — | N 8 | — | S 13 | W 11 | WNW 10 | WNW 10 | WNW 10 | WNW 7 | WNW 7 | NNW 8 | — | — | — |
| kJ | 2 | — | — | 7 | — | 6 | 5 | — | 1 | — | 3 | 2 | 20 | 32 | 37 | 16 | 9 | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 6 | NNW 6 | NNW 6 | NW 6 | — | — | NW 5 | WNW 3 | — | NW 2 | NW 4 | — | NW 3 | NNW 5 | NNW 5 | NW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 5 |
| kJ | 52 | 47 | 82 | 41 | 35 | — | — | 5 | 1 | — | 1 | 9 | — | 5 | 35 | 36 | 53 | 175 | 59 | 44 | 26 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 178 | 172 | 9 | 891 | 181 | 346 | 613 | 77 | 9 | 9 | 9 | 9 | 879 | 65 | 65 | 322 | 65 | 73 | 693 | 179 |
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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