Surf Forecasts:
Miramar surf forecast from 17 Aug 2026:
- Best quality surf: Saturday 22 Aug, 1AM (local time) - 6ft (1.8m), 8s period, NW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 4PM (local time) - 6.5ft (2.0m), 7s period, NW swell with 389 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 7AM (local time) - 3.5ft (1.1m), 8s period with NW swell.
Best Forecast Surf Conditions for Miramar this week:
The surf forecast for Miramar over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 7AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.1m and 17s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Miramar in the next 16 days are 2.0m 7s and forecast to arrive on Friday (Aug 21) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 18th Aug) | 3.5ft (1.1m) 8s |
| Best Surf | 1AM (Sat 22nd Aug) | 6ft (1.8m) 8s |
| Most Powerful | 4PM (Fri 21st Aug) | 6.5ft (2.0m) 7s |
Table - best surf conditions forecast for Miramar over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you—this forecast for Miramar is a long, frustrating wait for a real window. The next week and a half is mostly a write-off, with a whole lot of poor conditions and onshore chop. We’ve got a solid gap with no real surf recommendations until the very end of the month.
The first hint of anything worthwhile doesn’t show up until Friday morning, the 28th of August. That’s the first standout. The offshore wind from the NNE will be clean, light breeze, and the swell is a solid 5ft from the WNW with a 9-second period. The combined energy is strong at 441, so there’s some proper push. It’s a beach and reef setup, exposed to the west, so that WNW direction is right on the money. The water temperature is sitting at 69°, which is a degree warmer than average for this time of year—that’s a nice little bonus. Crowds can be an issue here sometimes, but early on a Friday with that clean offshore? It’ll be worth the gamble.
The real standout, though, is Saturday morning, the 29th of August. This one has potential to be the best session of the whole outlook. We’re looking at a 7ft swell from the NW, but the period jumps to 12 seconds—that’s proper groundswell, long lines of energy. The combined energy is massive at 1416, so the ocean will be alive. The wind is light and cross-shore from the NNW, which is workable, and the early morning will be glassy. This is for the experienced crew only—7ft on a beach and reef setup with that kind of power is not for beginners. The long period will make the waves stand up and barrel on the reef if the tide lines up, but it could break a bit straight on the beach. Still, this is the day to circle.
After that, Monday the 31st and Tuesday the 1st of September have some marginal windows with onshore winds spoiling things, but nothing comes close to that Saturday morning. The rest of the period is filled with moderate to fresh onshore breezes and choppy, messy surf. Not worth paddling out for.
So, bottom line: If you’ve got patience, the 28th morning is clean, but the 29th morning is the real prize. Don’t bother before that.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Mon afternoon, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 17°C on Thu night). Winds decreasing (fresh winds from the NNW on Fri afternoon, calm by Fri night). | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 8 | NW 7 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | WNW 10 | WNW 9 | WNW 9 | W 9 | NW 8 | NW 8 | NW 7 | NW 8 | NW 7 | NW 7 | NW 8 | NW 7 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 125 | 107 | 169 | 128 | 63 | 44 | 36 | 33 | 47 | 61 | 55 | 268 | 324 | 389 | 385 | 121 | 102 | 269 | 118 | 128 | 182 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | on | cross | cross | cross-on | glassy | cross-on | cross-on | cross | cross | cross-on | glassy | cross-on | cross-on | on | cross | on | cross-on |
High Tide | 6:53PM2.77m | 7:14AM2.56m | 7:34PM2.50m | 7:56AM2.38m | 8:20PM2.24m | 8:48AM2.20m | 9:22PM2.03m | 10:00AM2.08m | 10:51PM1.93m | 11:32AM2.07m | 00:21AM1.98m | 12:48PM2.20m | 1:23AM2.12m | ||||||||
Low Tide | 12:36PM0.36m | 1:01AM0.45m | 1:17PM0.58m | 1:39AM0.69m | 2:03PM0.80m | 2:24AM0.92m | 3:02PM1.01m | 3:26AM1.10m | 4:27PM1.13m | 4:57AM1.17m | 6:05PM1.09m | 6:25AM1.10m | 7:14PM0.95m | ||||||||
 | |  | |  | | | |  |  | | | | | | | |  | | | | |
 | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | — | 8:25 | — | — | 8:24 | — | — | 8:22 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 30 | 29 | 25 | 24 | 23 | 23 | 22 | 20 | 19 | 19 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 20 | 20 | 18 |
Feels °C | 27 | 27 | 28 | 25 | 25 | 23 | 23 | 22 | 23 | 20 | 17 | 16 | 17 | 15 | 18 | 19 | 19 | 18 | 19 | 19 | 15 |
Swell 1 Height (m) Direction Period (s) | NW 8 | W 9 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 6 | WNW 9 | WNW 9 | W 9 | NW 8 | NW 8 | W 11 | NW 8 | NW 7 | W 9 | NW 8 | NW 7 | NW 8 | NW 8 |
| kJ | 125 | 6 | 169 | 128 | 63 | 44 | 36 | 21 | 47 | 61 | 55 | 268 | 324 | 10 | 385 | 121 | 39 | 269 | 118 | 128 | 182 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 17 | SW 17 | SW 16 | W 8 | WNW 8 | WNW 8 | WNW 10 | NW 5 | NW 5 | NW 11 | NW 12 | SW 15 | SW 15 | SW 14 | W 9 | SW 14 | WNW 9 | W 9 | W 8 | SW 13 |
| kJ | 5 | 6 | 11 | 11 | 5 | 7 | 6 | 33 | 13 | 17 | 46 | 47 | 8 | 8 | 8 | 43 | 8 | 26 | 13 | 6 | 7 |
Swell 3 Height (m) Direction Period (s) | W 10 | — | — | — | SW 16 | — | NW 11 | SW 14 | SSW 3 | NW 11 | SW 13 | SW 16 | — | — | — | NW 9 | — | SW 14 | SW 14 | SW 13 | — |
| kJ | 2 | — | — | — | 10 | — | 5 | 8 | 1 | 19 | 7 | 10 | — | — | — | 21 | — | 8 | 7 | 7 | — |
Wind waves Height (m) Direction Period (s) | — | NW 7 | — | — | — | — | — | SW 3 | — | — | NW 4 | — | — | NW 7 | — | — | NW 7 | — | — | — | — |
| kJ | — | 107 | — | — | — | — | — | 2 | — | — | 5 | — | — | 389 | — | — | 102 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 203 | 8 | 98 | 176 | 10 | 10 | 175 | 0 | 45 | 312 | 200 | 52 | 309 | 0 | 8 | 310 | 8 | 5 | 269 | 71 |
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 Miramar 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 Miramar Surf forecast
The above surf forecast table for Miramar provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Miramar can be found by selecting the local surf guide option on the grey menu. Our Miramar 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 (Miramar) 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 Miramar 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.
Miramar is 5 km (3 miles) from the city of Canidelo. If you plan a holiday in Douro and Minho, look for hotels and other accommodation in Canidelo. Canidelo has rooms for a wide range of budgets as well as car hire and transport links.
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