Surf Forecasts:
San Mateo surf forecast from 10 Aug 2026:
- Best quality surf: Saturday 15 Aug, 7AM (local time) - 4.5ft (1.3m), 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★+): Monday 10 Aug, 4AM (local time) - 2ft (0.6m), 15s 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 Monday (Aug 10) at 4AM. The primary swell is predicted to be 0.6m and 15s 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 6s period and expected on Saturday (Aug 15) at 10PM.
| Wave Type | Time (-05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 10th Aug) | 2ft (0.6m) 15s |
| Best Surf | 7AM (Sat 15th Aug) | 4.5ft (1.3m) 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, Rusty here. Let’s talk about San Mateo.
You’ve got a bit of a dry spell up front. From now through Wednesday, the 12th, the surf is mostly poor – small, choppy, cross-shore breezes. Nothing worth paddling out for.
Thursday morning, the 13th – that’s your golden window. The water is running much warmer than usual for this time of year, which is a cool bonus. Swell is only 2 feet from the southwest, but the period is a solid 16 seconds, giving it real push (combined swell energy of 395). The wind goes glassy – dead calm. That means the point will be mirror-smooth. The direction isn’t lining up with the ideal northwest, but when it’s that clean, you don’t care.
Friday the 14th brings a bump to 4 to 5 feet, with more energy (974 and 1077), but the wind stays cross and conditions are only marginal. Saturday the 15th is similar – size holds, but it’s messy.
Tuesday the 18th is your next best shot: 5 feet from the southwest, 16-second period, strong energy (960), with only light cross winds. It’s not glassy, but it’s the second best session in the run.
After that, it trickles down into tiny, inconsistent slop through the end. This break is inconsistent anyway, so you’ve got to jump on those clean windows. For now, Thursday morning is the one.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 27°C on Tue morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 23°C on Wed night). Winds increasing (calm on Thu morning, fresh winds from the SW by Sat afternoon). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | SW 15 | SW 14 | SW 18 | SW 13 | SW 16 | SW 16 | SW 12 | SW 15 | SW 14 | SW 20 | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 262 | 251 | 375 | 176 | 306 | 353 | 51 | 134 | 147 | 203 | 303 | 901 | 974 | 931 | 897 | 820 | 685 | 598 | 459 | 355 | 410 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | glassy | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross |
High Tide | 1:24PM2.28m | 2:15AM2.37m | 2:26PM2.41m | 3:09AM2.56m | 3:20PM2.53m | 3:57AM2.70m | 4:09PM2.61m | 4:41AM2.79m | 4:55PM2.63m | 5:23AM2.80m | 5:39PM2.60m | 6:03AM2.74m | 6:22PM2.50m | ||||||||
Low Tide | 7:17AM0.68m | 7:50PM0.30m | 8:21AM0.53m | 8:46PM0.16m | 9:17AM0.38m | 9:36PM0.05m | 10:06AM0.26m | 10:22PM0.01m | 10:52AM0.19m | 11:05PM0.03m | 11:35AM0.17m | 11:47PM0.12m | 12:17PM0.21m | 00:28AM0.26m | |||||||
 | |  | |  |  | | | | | |  | | | | | | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 27 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 26 | 26 | 24 | 26 | 25 | 24 | 25 | 25 | 24 |
Feels °C | 27 | 25 | 24 | 27 | 25 | 24 | 28 | 26 | 26 | 29 | 26 | 26 | 27 | 26 | 23 | 25 | 23 | 23 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 18 | SW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 6 | SSW 6 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SSW 7 | SW 7 | SW 14 |
| kJ | 262 | 251 | 375 | 176 | 306 | 353 | 217 | 134 | 46 | 22 | 257 | 901 | 974 | 931 | 897 | 820 | 685 | 598 | 134 | 119 | 410 |
Swell 2 Height (m) Direction Period (s) | SW 20 | SW 19 | SW 14 | SSW 16 | SW 13 | SW 12 | SW 12 | SW 12 | SW 14 | SW 16 | SW 19 | SW 6 | — | NW 13 | NW 13 | NW 13 | — | NW 12 | SW 14 | SW 14 | SW 8 |
| kJ | 239 | 133 | 231 | 181 | 109 | 37 | 51 | 52 | 147 | 203 | 303 | 24 | — | 7 | 7 | 7 | — | 6 | 459 | 355 | 125 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | N 6 | N 7 | N 6 | N 6 | N 5 | N 7 | SSW 13 | SW 18 | SW 20 | NW 12 | — | — | — | — | — | — | — | NW 12 | NW 12 | NW 14 |
| kJ | 20 | 1 | 4 | 3 | 3 | 1 | 1 | 33 | 50 | 192 | 6 | — | — | — | — | — | — | — | 6 | 6 | 8 |
Wind waves Height (m) Direction Period (s) | — | SW 4 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | — | — | SW 6 | — | SSW 6 | SSW 6 | SW 5 | SSW 6 | SSW 6 | SW 6 | — | — | — |
| kJ | — | 12 | 44 | 71 | 80 | 55 | 62 | 56 | — | — | 29 | — | 21 | 43 | 38 | 43 | 77 | 88 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 141 | 912 | 450 | 11 | 916 | 141 | 11 | 920 | 7 | 0 | 912 | 303 | 181 | 938 | 111 | 7 | 930 | 303 | 141 | 1077 | 310 |
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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.
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