Surf Forecasts:
San Mateo surf forecast from 14 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 7AM (local time) - 3.5ft (1.0m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 14 Aug, 7PM (local time) - 5ft (1.5m), 16s period, SW swell with 1,109 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 7AM (local time) - 3.5ft (1.0m), 16s period with SW swell.
Best Forecast Surf Conditions for San Mateo this week:
The surf forecast for San Mateo 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 1.0m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at San Mateo in the next 16 days are 1.5m 16s and forecast to arrive on Friday (Aug 14) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Wednesday (Aug 19) at 7AM.
| Wave Type | Time (-05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 18th Aug) | 3.5ft (1.0m) 16s |
| Best Surf | 7AM (Tue 18th Aug) | 3.5ft (1.0m) 16s |
| Most Powerful | 7PM (Fri 14th Aug) | 5ft (1.5m) 16s |
Table - best surf conditions forecast for San Mateo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's cookin' at San Mateo over the next couple of weeks. It's a bit of a mixed bag, so buckle up.
Right off the bat, we've got a classic setup for the experienced crew. San Mateo is an advanced point break that's pretty exposed out here, so when it gets a sniff of that NW swell, it can be magic. Right now, the water's sitting at a balmy 81°, which is far warmer than usual for this time of year – you might not even need a spring suit.
Looking at the immediate future, it’s a bit frustrating. We're starting with a few days where the conditions are just not playing ball. Thursday the 13th has a bit of south-west swell at 2ft, but a 12 mph cross-on wind is making a mess of it. Friday and Saturday the 14th and 15th bring a bit more size, around 4ft to 5ft from the SW, but it's still cross-shore with a chop. It’s rideable if you’re desperate, but it’s not what we're here for.
The real standout, and I mean the clear winner of this whole forecast, is the window around Tuesday the 18th of August. On Tuesday morning, the wind is set to go totally *glassy* – absolute zero. Combine that with a clean 3ft SW groundswell with a nice long 16-second period, and you’ve got a recipe for perfection at this point break. The energy is moderate (475), but for a point, that long period is going to produce some beautifully lined-up, bowly waves. It won't be huge, but it will be pristine. Early bird gets the worm, because the afternoon gets messy again.
After that, it gets pretty bleak for a long stretch. From the 19th through the 25th, we're looking at small, weak swell and almost constant cross or cross-on winds. It's a real dry spell. There's just a brief flicker of hope on the 26th with some clean morning conditions, but the swell is tiny at 1ft.
Hold onto your hats, though, because our second big highlight is a long way off. On Friday the 28th of August, the stars are threatening to align again. Another morning of glassy conditions – wind swinging to the west at 0 mph – and this time the swell is a bit stronger at 4ft from the SW with a 16-second period as well. The energy is moderate (706), and the groundswell period means those lines will be clean and powerful. It's almost three weeks away, so keep a loose eye on it, but it has all the hallmarks of a very, very good session for the experts who know the lineups.
So for now, your one and only true standout is that Tuesday the 18th morning glass-off. The rest is either messy or too small until that promising Friday the 28th comes into range.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Tue morning, min 23°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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) | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
Wave Graph | ||||||||||||||||||||
303 | 901 | 1074 | 1039 | 897 | 915 | 757 | 598 | 590 | 410 | 410 | 404 | 387 | 385 | 468 | 301 | 293 | 187 | 208 | 326 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross | glassy | cross-on | cross-on | cross | cross | cross |
High Tide | 4:09PM2.61m | 4:41AM2.79m | 4:55PM2.63m | 5:23AM2.80m | 5:39PM2.60m | 6:03AM2.74m | 6:22PM2.50m | 6:42AM2.61m | 7:05PM2.37m | 7:21AM2.44m | 7:48PM2.20m | 8:02AM2.25m | 8:36PM2.03m | |||||||
Low Tide | 10:22PM0.01m | 10:52AM0.19m | 11:05PM0.03m | 11:35AM0.17m | 11:47PM0.12m | 12:17PM0.21m | 00:28AM0.26m | 12:58PM0.30m | 1:08AM0.43m | 1:39PM0.43m | 1:50AM0.61m | 2:23PM0.57m | 2:35AM0.79m | |||||||
— | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | |
6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:29 | — | — | 6:29 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 24 | 27 | 26 | 24 | 27 | 26 | 24 | 25 | 25 | 24 | 26 | 25 | 24 | 27 | 25 | 24 | 26 | 26 | 24 |
Feels °C | 26 | 24 | 26 | 25 | 24 | 28 | 26 | 23 | 25 | 25 | 25 | 26 | 25 | 25 | 29 | 25 | 25 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 7 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 |
257 | 901 | 1074 | 1039 | 897 | 915 | 757 | 598 | 590 | 410 | 410 | 404 | 387 | 96 | 468 | 301 | 293 | 187 | 208 | 326 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | — | — | — | NW 13 | NW 13 | — | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | SSW 12 | SW 15 | SSW 9 | NW 13 | NW 13 | NW 11 | SSW 10 | NW 13 |
303 | — | — | — | 7 | 7 | — | 6 | 6 | 6 | 6 | 5 | 14 | 385 | 135 | 7 | 7 | 5 | 10 | 7 | |
Swell 3 Height (m) Direction Period (s) | N 12 | — | — | — | — | — | — | — | — | — | — | — | NW 11 | NW 13 | NW 13 | — | W 16 | SW 19 | SW 18 | — |
3 | — | — | — | — | — | — | — | — | — | — | — | 5 | 7 | 7 | — | 5 | 15 | 12 | — | |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 4 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SSW 7 | — | — | SW 9 | SSW 8 | SSW 8 | SSW 8 | SW 7 |
15 | 16 | 42 | 77 | 61 | 55 | 69 | 71 | 80 | 71 | 54 | 67 | 96 | — | — | 178 | 136 | 166 | 188 | 75 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 912 | 221 | 102 | 916 | 310 | 7 | 920 | 111 | 348 | 912 | 310 | 310 | 805 | 7 | 0 | 805 | 310 | 377 | 916 | 7 |
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Information about the San Mateo Surf forecast
The above surf forecast table for San Mateo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at San Mateo can be found by selecting the local surf guide option on the grey menu. Our San Mateo 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 (San Mateo) 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 San Mateo 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.
Are you planning a holiday in Manabi? If you are looking for accommodation near San Mateo, camping, hotels and holiday cottages in Manabi, consider staying in Manta which is 11 km (7 miles) away. Other places in and around Manabi where you can find information about places to rent, and car hire include Montecristi which is 21 km (13 miles) away, Portoviejo, Jipijapa and Sucre.











