Surf Forecasts:
Praia do Castello surf forecast from 16 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 4AM (local time) - 4.5ft (1.4m), 16s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 23 Sep, 4AM (local time) - 4.5ft (1.4m), 16s period, NW swell with 1,005 kJ wave energy.
- Next surfable swell (1★+): Thursday 17 Sep, 7AM (local time) - 6ft (1.8m), 10s period with NW swell.
Best Forecast Surf Conditions for Praia do Castello this week:
The surf forecast for Praia do Castello over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 17) at 7AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia do Castello in the next 16 days are 1.4m 16s and forecast to arrive on Wednesday (Sep 23) at 4AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Monday (Sep 21) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 17th Sep) | 6ft (1.8m) 10s |
| Best Surf | 4AM (Wed 23rd Sep) | 4.5ft (1.4m) 16s |
| Most Powerful | 4AM (Wed 23rd Sep) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Praia do Castello over the next 16 days.
Short Range ForecastMostly dry. Warm (max 26°C on Thu morning, min 18°C on Wed night). Winds decreasing (fresh winds from the NNW on Wed afternoon, calm by Fri night). | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sun afternoon, min 20°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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) | NW 9 | NW 9 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 12 | NW 11 | NW 11 | WNW 19 | WNW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 439 | 760 | 880 | 588 | 499 | 513 | 294 | 220 | 825 | 694 | 545 | 411 | 309 | 237 | 159 | 120 | 93 | 147 | 145 | 238 | 808 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | cross-on | cross | cross-off | cross-on | glassy | glassy | on | glassy | off | cross-on | off | off | cross-on | glassy | off | on | on |
High Tide | 6:28PM2.28m | 6:45AM2.26m | 7:11PM2.04m | 7:34AM2.07m | 8:12PM1.84m | 8:48AM1.92m | 9:51PM1.74m | 10:33AM1.91m | 11:30PM1.81m | 11:54AM2.04m | 00:31AM1.97m | 12:45PM2.24m | 1:13AM2.16m | ||||||||
Low Tide | 12:13PM0.55m | 00:26AM0.70m | 12:55PM0.76m | 1:07AM0.91m | 1:50PM0.97m | 2:06AM1.09m | 3:20PM1.10m | 3:49AM1.17m | 5:13PM1.06m | 5:30AM1.08m | 6:23PM0.90m | 6:29AM0.90m | 7:06PM0.70m | ||||||||
 | |  | |  | | | | | | | | | | | | | | | | | |
 | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — |
 | — | 7:44 | — | — | 7:42 | — | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 26 | 26 | 19 | 25 | 24 | 22 | 26 | 27 | 27 | 29 | 30 | 26 | 28 | 30 | 25 | 28 | 29 | 25 |
Feels °C | 17 | 17 | 15 | 22 | 20 | 15 | 23 | 20 | 20 | 25 | 24 | 25 | 29 | 27 | 23 | 29 | 28 | 22 | 27 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | S 12 | S 12 | NW 10 | S 12 | S 16 | NW 9 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 11 | NW 11 | NW 12 | WNW 16 |
| kJ | 125 | 3 | 3 | 588 | 3 | 5 | 294 | 69 | 825 | 694 | 545 | 411 | 309 | 237 | 159 | 120 | 76 | 147 | 145 | 161 | 808 |
Swell 2 Height (m) Direction Period (s) | S 13 | — | S 12 | S 18 | S 16 | S 11 | NW 16 | S 14 | S 14 | SW 14 | SW 13 | S 13 | S 13 | S 11 | NW 5 | NW 13 | NW 12 | — | S 4 | WNW 19 | NW 11 |
| kJ | 3 | — | 3 | 6 | 5 | 3 | 10 | 4 | 4 | 8 | 7 | 3 | 3 | 2 | 8 | 61 | 93 | — | 1 | 238 | 123 |
Swell 3 Height (m) Direction Period (s) | — | — | S 12 | S 12 | — | S 11 | S 15 | S 11 | S 11 | — | S 13 | S 10 | S 11 | S 13 | — | SSE 5 | S 4 | S 12 | NW 21 | S 11 | WNW 12 |
| kJ | — | — | 3 | 3 | — | 2 | 4 | 2 | 2 | — | 3 | 2 | 2 | 3 | — | 4 | 2 | 3 | 18 | 2 | 14 |
Wind waves Height (m) Direction Period (s) | NW 9 | NW 9 | NW 10 | — | NW 10 | NW 9 | — | NW 9 | — | — | — | — | — | — | — | — | WNW 2 | NNW 4 | — | W 2 | — |
| kJ | 439 | 760 | 880 | — | 499 | 513 | — | 220 | — | — | — | — | — | — | — | — | 1 | 12 | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 468 | 612 | 87 | 0 | 432 | 87 | 0 | 183 | 0 | 0 | 15 | 0 | 0 | 9 | 0 | 0 | 8 | 0 | 0 | 9 | 8 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Praia do Castello 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 Praia do Castello Surf forecast
The above surf forecast table for Praia do Castello provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Castello can be found by selecting the local surf guide option on the grey menu. Our Praia do Castello 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 (Praia do Castello) 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 Praia do Castello 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.
Praia do Castello is 5 km (3 miles) from Charneca. If you plan a holiday in Lisboa, look for hotels and other accommodation in Charneca. Charneca has rooms for a wide range of budgets as well as car hire and transport links.
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