San Mateo Surf Break

Lat Long: 0.95° S 80.83° W

San Mateo Surf Forecast and Surf Report

Issued: 12 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's San Mateo sea temperature is
26.8° C
4.8° 

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 5 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, 1PM (local time) - 3.5ft (1.1m), 16s period, SW swell with 653 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 10AM (local time) - 2ft (0.6m), 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 Wednesday (Aug 05) at 10AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.8m and 6s. 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 1.1m 16s and forecast to arrive on Friday (Aug 07) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Sunday (Aug 09) at 10PM.

Wave TypeTime (-05) & Date Wave Height & Period
Next good surf (1 star+)10AM (Wed 5th Aug)2ft (0.6m) 13s
Best Surf10AM (Fri 7th Aug)2.5ft (0.8m) 16s
Most Powerful 1PM (Fri 7th Aug)3.5ft (1.1m) 16s

Table - best surf conditions forecast for San Mateo over the next 16 days.


The Lowdown

Alright, Rusty here. Let's have a look at what's cookin' for the San Mateo area over the next couple of weeks.

Right off the bat, we're looking at a bit of a slow start. The first few days are a write-off, with only small, weak swell and onshore or cross-onshore winds messing things up. Wednesday morning, the 5th, has some tiny 2ft swell from the SW with a period of 13 seconds, but the wind is straight out of the south, making it a cross-off. It's clean, but the energy is weak (182), and it's just not going to have any punch. Things stay poor through Thursday and into Friday morning.

But hold on to your boards, because Friday morning, the 7th of August, is where we finally get a window. The wind goes glassy – absolute dead calm – and that's the key. We've got a 2-3ft swell from the SW, but the period has jumped to a very long 16 seconds. That's proper groundswell energy right there, with a combined energy of 516. That long period at San Mateo, a point break, is what we wanna hear. It'll be lined up and clean, with those long gaps between sets that make it easier to get out the back. This is the standout. The morning is the only call; the arvo gets ruined by a 12 mph cross-on.

We get another chance the following week. The morning of Thursday, the 13th of August, looks like a repeat performance. The wind is glassy again, with a 2-3ft swell from the SW. The period is even longer this time at 19 seconds, and the energy is moderate (506). For a point break like San Mateo, that's an absolute dream – long, clean lines. Get on it early.

The Friday morning, the 14th of August, is a bit of a wildcard. The swell is consistently 3ft from the SW, period is a very long 18 seconds, and the energy is strong (1052). The only issue is a light 3 mph cross-on breeze. It's not perfect, but for a point break, that light touch of wind can actually help hold the face up. It's a solid option, but the glassy days are the true winners.

After that, it's a long stretch of poor conditions again. Cross-onshore winds, chop, and a lot of "marginal" or "poor" calls fill the rest of the 16-day window. The last morning on the 20th of August has a bit more size (4ft) and a 16-second period, but the cross-shore wind will put a chop on it. It's not the cleanest, but it's something to watch.

So, the bottom line: don't bother paddling out until Friday morning, the 7th. That's your best bet, with Thursday the 13th a close second. The rest of the window is mostly a bust.

Short Range Forecast

Mostly dry. Warm (max 26°C on Wed morning, min 23°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sat morning, min 23°C on Sat night). Wind will be generally light.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
1
0
1
3
0
2
1
0
1
0
0
1
2
0
1
0
0
0
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
13
0.6
SW
14
0.7
SW
14
0.8
SW
13
0.8
SW
12
0.8
SW
17
0.8
SW
16
1.1
SW
16
1.2
SW
15
1.1
SW
14
1
SW
14
0.8
SW
13
0.7
SW
13
0.7
SW
13
0.6
SW
15
0.8
SW
15
0.8
SW
14
0.8
SW
18
0.8
SW
13
0.8
SW
16
0.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
130
130
179
246
187
362
310
644
623
529
393
250
163
161
136
262
248
375
219
310
353
Wind (km/h)
10
S
20
WSW
15
SW
10
SSW
20
WSW
10
SSW
5
WSW
20
WSW
10
SSW
15
SSW
20
SW
10
SSW
20
SSW
25
SW
15
SSW
15
SSW
25
SW
20
SSW
20
SSW
25
SW
20
SSW
Wind State
cross-off
cross-on
cross
cross
cross-on
cross
glassy
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
High Tide
7:53AM2.39m
8:24PM2.12m
8:42AM2.30m
9:24PM2.04m
9:42AM2.21m
10:37PM2.00m
10:55AM2.16m
11:58PM2.05m
12:13PM2.19m
1:12AM2.18m
1:24PM2.28m
2:15AM2.37m
2:26PM2.41m
3:09AM2.56m
Low Tide
2:16PM0.50m
2:25AM0.64m
3:11PM0.54m
3:24AM0.74m
4:16PM0.57m
4:38AM0.80m
5:31PM0.54m
6:01AM0.78m
6:45PM0.44m
7:17AM0.68m
7:50PM0.30m
8:21AM0.53m
8:46PM0.16m
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
<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
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
Temp °C
26
25
24
26
26
24
26
26
24
26
25
24
26
25
23
26
25
23
26
25
23
Feels °C
27
25
25
27
26
26
29
27
26
27
25
25
25
24
24
26
24
23
26
24
22
  • Map Icons:
  • Break
  • 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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