San Mateo Surf Break

Lat Long: 0.95° S 80.83° W

San Mateo Surf Forecast and Surf Report

Issued: 6 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's San Mateo sea temperature is
26.9° C
4.9° 

San Mateo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


San Mateo surf forecast from 3 Aug 2026:

  • Best quality surf: Friday 7 Aug, 10AM (local time) - 2.5ft (0.8m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Friday 7 Aug, 4PM (local time) - 4ft (1.2m), 16s period, SW swell with 719 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 7AM (local time) - 2.5ft (0.8m), 13s 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 Thursday (Aug 06) at 7AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.4m and 19s. Another secondary swell of 0.6m and 7s is also forecast. 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 1.2m 16s and forecast to arrive on Friday (Aug 07) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Monday (Aug 03) at 1PM.

Wave TypeTime (-05) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 6th Aug)2.5ft (0.8m) 13s
Best Surf10AM (Fri 7th Aug)2.5ft (0.8m) 16s
Most Powerful 4PM (Fri 7th Aug)4ft (1.2m) 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 we've got coming down the line for San Mateo.

It's a bit of a slow start, I won't lie. The first few days are looking pretty average with small, messy swell and a lot of cross-shore or cross-onshore breeze messing things up. The water is *much* warmer than normal for this time of year, sitting at 80°, which is a seriously warm anomaly (9° warmer than usual) – you’ll be in boardies for sure.

The real standout, the one you want to circle on the calendar, is Friday morning, August 7th. That's where the magic happens. The wind goes glassy, absolutely dead calm, and we get a solid 3ft groundswell from the southwest. The kicker is the period – a very long 16 seconds – which means proper, lined-up energy. The combined energy is cranking at 609 (moderate to strong), so there's plenty of push. For a point break like San Mateo, that long-period groundswell is perfect. It’s going to be clean, glassy, and offering some really nice, walled-up waves. This is the best session on offer, without a doubt.

Thursday morning, August 6th, is a decent consolation prize. We’ve got a light cross-offshore breeze with 3ft of swell, and the combined energy is already building at 376 (moderate). The period is a solid 13 seconds. It won't be as pristine as Friday, but it’ll be clean and fun, with good shape.

After that, things get tricky. The mornings on August 14th and 15th (Friday and Saturday) show some promise with a bigger swell building – around 4ft to 4ft – and a very long period of 17 seconds. The combined energy readings are strong (663 and 770). However, the wind each morning is a light cross-shore, which is okay, but not perfect. The afternoons get blown out by a strong cross-onshore breeze. For a point break, that long-period swell will wrap in nicely, but you’ll need to nail the early morning window before the sea breeze ruins it. These are promising but less certain, being a week and a half out.

There are a few other mornings scattered in the second week with marginal conditions and light winds, like August 11th, 13th, and 16th, but the swell is small and inconsistent, and the quality is just not there. The second week is really just about those early morning windows on the 14th and 15th.

So, to sum it up: hold out for Friday morning, August 7th for the best, cleanest surf of the outlook. If you can't make that, dawn patrol on Thursday the 6th or the mornings of the 14th and 15th are your next best bets. The rest of the time, it’s a waiting game.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue night. Warm (max 27°C on Tue morning, min 23°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Thu morning, min 24°C on Wed night). Wind will be generally light.

Sun
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
2
0
1
3
0
0
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
14
0.6
SW
13
0.6
SW
13
0.6
SW
13
1
SW
9
0.9
SW
9
0.9
SW
9
0.9
SW
8
0.6
SW
13
0.6
SW
14
0.6
SW
14
0.8
SW
13
0.8
SW
12
0.8
SW
17
0.8
SW
16
1.2
SW
16
1.1
SW
15
1.3
SW
14
1
SW
14
0.8
SW
13
Wave Graph
Metric surfscale
Energy kJ
164
144
140
134
162
115
112
102
130
130
147
246
187
362
366
719
479
667
393
246
Wind (km/h)
30
SW
20
SSW
15
SSW
25
SW
20
SSW
10
SSW
20
SW
20
SSW
10
SSW
20
WSW
20
SW
10
SSW
20
SW
10
SSW
5
SW
20
WSW
20
SW
20
SSW
25
SW
15
S
Wind State
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross-off
cross-on
cross
glassy
cross-on
cross
cross
cross-on
cross-off
High Tide
6:13PM2.32m
6:36AM2.50m
6:52PM2.27m
7:12AM2.46m
7:35PM2.20m
7:53AM2.39m
8:24PM2.12m
8:42AM2.30m
9:24PM2.04m
9:42AM2.21m
10:37PM2.00m
10:55AM2.16m
11:58PM2.05m
Low Tide
00:20AM0.37m
12:50PM0.45m
00:56AM0.44m
1:30PM0.47m
1:36AM0.54m
2:16PM0.50m
2:25AM0.64m
3:11PM0.54m
3:24AM0.74m
4:16PM0.57m
4:38AM0.80m
5:31PM0.54m
part cloud
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clear
part cloud
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rain showers
part cloud
clear
part cloud
part cloud
clear
part cloud
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clear
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clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:26
6:26
6:26
6:26
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:30
6:30
6:30
6:30
6:30
 mm
1
Temp °C
25
24
26
26
24
27
26
24
26
26
24
27
26
24
26
26
24
26
26
24
Feels °C
24
24
27
26
24
28
26
25
28
26
25
28
26
26
30
27
25
27
26
25
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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