Surf Forecasts:
Kings Rock surf forecast from 7 Aug 2026:
- Best quality surf: Friday 14 Aug, 1AM (local time) - 3.5ft (1.1m), 9s period, WNW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 4AM (local time) - 3.5ft (1.1m), 10s period, WNW swell with 205 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 1AM (local time) - 1.5ft (0.5m), 11s period with NW swell.
Best Forecast Surf Conditions for Kings Rock this week:
The surf forecast for Kings Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 1AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kings Rock in the next 16 days are 1.1m 10s and forecast to arrive on Friday (Aug 14) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Friday (Aug 07) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 9th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 1AM (Fri 14th Aug) | 3.5ft (1.1m) 9s |
| Most Powerful | 4AM (Fri 14th Aug) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Kings Rock over the next 16 days.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 17°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Wed morning, min 17°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 | W 9 | W 9 | W 7 | NW 11 | W 7 | W 7 | NW 9 | NW 8 | WNW 7 | NW 7 | NW 8 | NW 8 | W 10 | W 9 | W 9 | W 9 | W 9 | W 8 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 27 | 26 | 14 | 14 | 37 | 58 | 62 | 88 | 64 | 58 | 86 | 47 | 53 | 50 | 122 | 130 | 126 | 126 | 95 | 91 | 201 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-on | on | glassy | cross-on | cross-on | cross-off | cross | cross | cross | glassy | cross | cross-off | cross | cross | glassy | on | cross | glassy |
High Tide | 10:14AM2.85m | 10:51PM2.72m | 11:39AM2.88m | 00:21AM2.76m | 12:59PM3.03m | 1:36AM2.92m | 2:03PM3.24m | 2:36AM3.11m | 2:56PM3.43m | 3:26AM3.28m | 3:43PM3.58m | 4:10AM3.39m | 4:25PM3.65m | ||||||||
Low Tide | 4:37PM1.24m | 5:10AM1.19m | 6:07PM1.17m | 6:33AM1.11m | 7:22PM0.98m | 7:41AM0.95m | 8:22PM0.76m | 8:37AM0.77m | 9:12PM0.57m | 9:25AM0.63m | 9:56PM0.44m | 10:08AM0.55m | 10:37PM0.39m | ||||||||
 | |  | | |  | | | | | | | | | | | | | | | | |
 | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 19 | 23 | 23 | 20 | 23 | 22 | 19 | 22 | 22 | 18 | 22 | 21 | 18 | 23 | 23 | 20 | 23 | 23 | 19 |
Feels °C | 22 | 23 | 20 | 23 | 24 | 23 | 23 | 22 | 19 | 21 | 21 | 18 | 22 | 20 | 17 | 23 | 23 | 22 | 24 | 23 | 20 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NW 7 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | NW 8 | NNW 10 | NW 7 | NW 8 | NW 10 | W 10 | W 9 | W 9 | W 9 | W 9 | W 8 | NW 6 |
| kJ | 56 | 23 | 14 | 6 | 37 | 47 | 62 | 88 | 46 | 58 | 10 | 47 | 53 | 26 | 122 | 130 | 126 | 126 | 95 | 91 | 109 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | W 6 | W 9 | NNW 12 | NW 11 | NW 10 | NW 10 | NW 9 | W 7 | WNW 11 | W 6 | NW 11 | WNW 11 | NW 5 | NNW 9 | NW 9 | NNW 9 | NW 5 | NW 11 | WNW 9 |
| kJ | 27 | 26 | 7 | 14 | 15 | 58 | 48 | 46 | 64 | 31 | 11 | 11 | 32 | 40 | 22 | 34 | 21 | 8 | 19 | 60 | 201 |
Swell 3 Height (m) Direction Period (s) | SW 13 | S 11 | W 9 | NNW 7 | N 7 | N 6 | — | S 13 | — | W 11 | NW 14 | NW 9 | WNW 10 | WNW 9 | NNW 10 | NW 4 | — | NNW 9 | N 8 | N 8 | — |
| kJ | 7 | 2 | 14 | 4 | 3 | 1 | — | 3 | — | 2 | 7 | 20 | 19 | 8 | 35 | 6 | — | 8 | 6 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WNW 7 | NW 4 | — | NW 8 | — | — | NW 4 | NNW 6 | — | NW 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 86 | 15 | — | 50 | — | — | 6 | 65 | — | 21 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 337 | 23 | 101 | 101 | 0 | 101 | 96 | 0 | 4 | 143 | 4 | 0 | 96 | 0 | 4 | 96 | 0 | 60 | 96 | 4 |
Best forecast wave conditions in Douro and Minho | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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 Kings Rock 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 Kings Rock Surf forecast
The above surf forecast table for Kings Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kings Rock can be found by selecting the local surf guide option on the grey menu. Our Kings Rock 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 (Kings Rock) 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 Kings Rock 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.
Kings Rock is 5 km (3 miles) from Viana do Castelo. If you plan a holiday in Douro and Minho, look for hotels and other accommodation in Viana do Castelo. Viana do Castelo has rooms for a wide range of budgets as well as car hire and transport links.
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