Surf Forecasts:
San Mateo surf forecast from 13 Sep 2026:
- Best quality surf: Monday 14 Sep, 7AM (local time) - 2ft (0.6m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 7PM (local time) - 3.5ft (1.0m), 16s period, SW swell with 492 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 7AM (local time) - 2ft (0.6m), 18s 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 (Sep 14) at 7AM. The primary swell is predicted to be 0.6m and 18s 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 1.0m 16s and forecast to arrive on Tuesday (Sep 15) 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 7s period and expected on Sunday (Sep 13) at 4PM.
| Wave Type | Time (-05) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 14th Sep) | 2ft (0.6m) 18s |
| Best Surf | 7AM (Mon 14th Sep) | 2ft (0.6m) 18s |
| Most Powerful | 7PM (Tue 15th Sep) | 3.5ft (1.0m) 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 on the cards for the next couple of weeks.
First up, we're looking at a bit of a slow start. There's a stretch of pretty poor conditions through to the end of this week, so don't rush out. The water temp is sitting at 81°F, which is far warmer than normal for this time of year – that's something you'll feel the moment you jump in.
San Mateo is our only break on the menu. It's a point break that gets inconsistent, so it's not the kind of spot you can just rock up to any time. The standout morning looks to be Monday, September 14th. We're looking at a 2ft swell from the SW, and the wind will be glassy. That is a major positive – you'll get clean, smooth waves. The combined wave energy is moderate (244).
Tuesday, September 15th morning is another one to circle. It's a bit bigger at 3ft from the SW, with a cross-offshore breeze, keeping things clean. The swell energy is still moderate but a bit stronger (410). The period is a long 16 seconds, which means good shaped waves with more energy behind them, but at a point break like this, that longer period should work just fine.
After that, the pattern gets messy with onshore winds and lumpy conditions. Thursday, September 17th morning looks clean again with a 3ft SW swell (376 energy) and cross-offshore wind, but the consistency will be an issue. Beyond that, it's mostly marginal or poor until we hit Sunday, September 27th. That morning shows a clean 2ft SW swell (291 energy) with a light cross-offshore breeze. It's a long way off, so treat it as a promising but less certain window.
Overall, if you're keen, aim for the Monday and Tuesday mornings coming up. The rest of the period is pretty average, with a lot of onshore chop. Don't expect much else.
- Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Tue morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 28°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 21 | SW 20 | SW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 131 | 131 | 111 | 197 | 206 | 432 | 366 | 361 | 468 | 355 | 346 | 289 | 250 | 171 | 168 | 166 | 163 | 151 | 214 | 239 | 365 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross |
High Tide | 4:53AM2.75m | 5:14PM2.59m | 5:29AM2.67m | 5:53PM2.51m | 6:04AM2.53m | 6:31PM2.37m | 6:40AM2.37m | 7:10PM2.21m | 7:18AM2.19m | 7:53PM2.04m | 8:00AM2.01m | 8:46PM1.88m | 8:54AM1.86m | 9:57PM1.78m | |||||||
Low Tide | 11:06AM0.12m | 11:19PM0.22m | 11:43AM0.17m | 11:56PM0.33m | 12:19PM0.26m | 00:33AM0.48m | 12:57PM0.39m | 1:12AM0.64m | 1:37PM0.55m | 1:54AM0.81m | 2:25PM0.70m | 2:48AM0.96m | 3:26PM0.82m | ||||||||
 | |  | |  | | | | | | |  |  | | | | | | | | | |
 | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 27 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 28 | 27 | 26 | 31 | 28 | 28 | 29 | 28 | 27 | 29 | 27 | 27 | 29 | 27 | 28 | 28 | 27 | 27 | 28 | 28 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SSW 6 | SSW 6 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 6 | SW 12 | SW 19 |
| kJ | 95 | 71 | 67 | 47 | 206 | 432 | 366 | 361 | 468 | 355 | 346 | 289 | 250 | 171 | 168 | 166 | 163 | 151 | 34 | 139 | 365 |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 12 | SW 18 | SW 11 | SW 7 | SW 13 | SW 13 | W 11 | SW 24 | WSW 23 | SW 22 | SW 21 | SW 21 | SW 20 | SW 20 | SW 20 | SW 18 | SW 12 | SW 20 | SW 12 |
| kJ | 131 | 131 | 50 | 197 | 43 | 36 | 44 | 83 | 2 | 22 | 53 | 77 | 72 | 71 | 102 | 97 | 134 | 51 | 141 | 239 | 134 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | WNW 11 | SW 18 | SW 12 | SW 15 | SW 11 | SW 10 | SW 10 | NW 16 | W 14 | NW 11 | WNW 12 | WNW 13 | WNW 13 | WNW 11 | WNW 12 | WNW 12 | SW 21 | SW 21 | W 11 | NW 11 |
| kJ | 11 | 11 | 111 | 47 | 54 | 29 | 25 | 25 | 10 | 4 | 5 | 14 | 16 | 17 | 12 | 14 | 14 | 72 | 214 | 2 | 5 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 7 | — | — | SSW 6 | — | SSW 7 | SW 7 | SW 5 | SSW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SW 6 | — | SW 6 | SW 6 |
| kJ | 113 | 123 | — | — | 47 | — | 41 | 46 | 23 | 26 | 29 | 32 | 38 | 51 | 45 | 55 | 58 | 46 | — | 34 | 37 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 310 | 181 | 912 | 7 | 0 | 912 | 450 | 0 | 857 | 181 | 7 | 920 | 181 | 0 | 857 | 111 | 7 | 815 | 7 | 141 | 1077 |
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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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