Surf Forecasts:
Castelejo surf forecast from 20 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 4AM (local time) - 7ft (2.1m), 8s period, NW swell with 575 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 (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 0.1m 13s period and expected on Thursday (Jul 23) at 7AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| 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 talk about Castelejo. The next 16 days are a real struggle, with a long dry spell up front and then mostly wind junk.
There’s nothing doing from the start. From Monday, July 20th, through Monday, July 27th, it’s all poor. The wind is onshore or cross-onshore from the NNW and NW, blowing 12 to 25 mph. The swell is small, short period, and messy. The wave energy is weak, barely hitting 130. Not worth the drive.
The only little window is late on Wednesday, July 29th. We get a glassy afternoon with a light wind from the WSW at 3 mph. The swell is a tiny 3 ft from the NNW, with a 9-second period. The energy is low (114), but it’s glassy. You could get a few grovelly ones, but it’s small. The water temp is about average for the season, around 69°F.
Then it’s another blank stretch from Thursday, July 30th, through Monday, August 3rd. The wind stays onshore or cross-onshore, and the swell is tiny and weak. Most days the combined energy is under 100. It’s flat.
The only real standout for experts is Tuesday, August 4th. The swell jumps to 6 ft from the NNW, with an 8-second period. The energy hits 416 – that’s solid. But the wind is a fresh cross-onshore breeze at 22 mph, making it lumpy. For a beach and reef setup, that’s more of a kite-surfing day than a clean paddle. The 6 ft is too big for beginners, and the conditions are rough. You’ll be working hard for anything.
So, a tough 16 days. One glassy moment on the 29th, but tiny. The big pulse on the 4th of August is blown out. It’s a rough patch, but it won’t stay this way forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Mon afternoon, min 18°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Thu afternoon, min 18°C on Thu night). Mainly fresh winds. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 | NNW 7 | NW 7 | NW 7 | NW 8 | WNW 10 | NW 7 | NW 5 | NW 5 | NW 5 | NW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | NNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 57 | 78 | 69 | 79 | 113 | 32 | 52 | 38 | 39 | 36 | 62 | 49 | 53 | 138 | 109 | 128 | 558 | 408 | 326 | 455 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | on | cross-on |
High Tide | 7:49PM2.46m | 8:21AM2.23m | 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 | |||||||
Low Tide | 2:03AM0.65m | 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 | ||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | 8:52 | — | — | 8:52 | — | — | 8:51 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 19 | 20 | 20 | 20 | 21 | 21 | 19 | 21 | 21 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 19 |
Feels °C | 19 | 16 | 19 | 18 | 18 | 18 | 18 | 15 | 17 | 17 | 15 | 17 | 17 | 16 | 17 | 17 | 15 | 16 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 8 | NW 7 | WNW 10 | NW 8 | NNW 7 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | W 11 | W 11 | — | — | NW 14 | NW 12 |
| kJ | 13 | 17 | 69 | 21 | 67 | 18 | 32 | 16 | 16 | 16 | 16 | 15 | 13 | 7 | 2 | 2 | — | — | 7 | 6 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | WNW 8 | WNW 11 | W 7 | WNW 10 | WNW 10 | SW 13 | N 9 | S 12 | S 12 | — | — | — | — | — | — | — | — | — | — |
| kJ | 15 | 11 | 23 | 4 | 39 | 32 | 7 | 2 | 3 | 3 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 16 | WNW 11 | WNW 7 | SW 14 | S 14 | S 14 | — | S 13 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 10 | 12 | 5 | 8 | 4 | 4 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 7 | NNW 7 | — | NW 7 | NW 8 | NW 5 | NW 7 | NW 5 | NW 5 | NW 5 | NW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NW 8 | NW 8 | NW 8 | NNW 7 |
| kJ | 57 | 78 | — | 79 | 113 | 14 | 52 | 38 | 39 | 36 | 62 | 49 | 53 | 138 | 109 | 128 | 558 | 408 | 326 | 455 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 245 | 77 | 9 | 254 | 9 | 95 | 677 | 390 | 92 | 653 | 317 | 725 | 381 | 609 | 476 | 609 | 65 | 65 | 638 | 65 |
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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