San Mateo Surf Break

Lat Long: 0.95° S 80.83° W

San Mateo Surf Forecast and Surf Report

Issued: 12 am 06 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 6 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★+): Friday 7 Aug, 4AM (local time) - 2.5ft (0.8m), 17s 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 Friday (Aug 07) at 4AM. The primary swell is predicted to be 0.8m and 17s period. The wind is predicted to be glassy 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+) 4AM (Fri 7th Aug)2.5ft (0.8m) 17s
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 folks, Rusty here. Let’s have a look at what the next couple of weeks are shaping up like for San Mateo. It’s a bit of a slow start, but there’s some real promise waiting for those who are patient.

The first few days are a write-off. Thursday the 6th is a total no-go with onshore slop, and even though the swell is a tiny 3ft, the conditions are just cooked. You’d be wasting your time. Friday morning the 7th is where it finally gets interesting. That’s our first real standout. We’ve got a 3ft SW swell pulsing with a 16-second period and a combined energy of 516 (moderate), but the real magic is the glassy conditions. It’s going to be clean as a whistle. That long period stuff from the SW is a groundswell, and it'll be lining up nicely on this point break. For a wave that’s inconsistent, when it shows up, it’ll be a thing of beauty. Keep in mind the water temp is about average for this time of year.

Monday morning the 10th is another cracker. The swell holds at 3ft from the SW, period drops slightly to 15 seconds, but the energy is still solid at 521 (moderate). The wind is a light cross-offshore breeze, so you’re getting clean, peeling lines. The break is exposed to the NW but we’re getting this SW groundswell wrapping in, so it’s a bit of a sneaky setup. Expect it to be good.

From there, the arvo winds chop it up all week, but there are a few mornings that are worth a look. The 14th of August Friday morning sees a jump in size to 4ft from the SW, with a 17-second period and a strong energy reading of 1074 (strong). The wind is light and cross, so it’ll be a bit textured but still rideable. That’s a lot of water moving for a spot that’s inconsistent, so keep your eyes peeled.

The 15th of August Saturday morning is similar, 5ft from the SW, 15-second period, energy at 1035 (strong). Again, light cross wind, so it’s not perfect but it’s doable. Saturday and Sunday mornings the 16th and 17th are marginal, with the swell dropping back a touch.

The real long-range tease is the 20th of August Thursday morning. We’re looking at a solid 5ft from the SW, 16-second period, and a massive energy reading of 1300 (strong). The wind is a gentle cross-shore, so it’s not glassy, but with that much power and a long period, the point should be handling it well. That’s a promising but less certain call this far out, but it could be the best of the bunch if it lines up.

Overall, the best bet is that Friday morning, the 7th of August, for the glassy conditions and the clean, long-period groundswell. Monday the 10th is a close second. Don’t bother with the afternoons unless you’re into choppy, blown-out junk.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

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

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
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
1
3
0
1
0
0
1
0
0
1
3
0
1
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
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
0.9
SW
14
0.8
SW
13
0.7
SW
13
0.6
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
0.4
SW
12
0.6
SW
14
0.4
SW
21
Wave Graph
Metric surfscale
Energy kJ
246
187
362
310
644
623
459
341
250
163
132
136
262
251
375
219
310
353
51
169
149
Wind (km/h)
5
SW
20
WSW
5
SSW
5
WSW
20
WSW
20
SSW
20
SSW
25
SW
15
SSW
25
SSW
25
SW
10
SSW
10
S
20
SW
20
SSW
25
SSW
25
SW
20
SSW
20
SSW
25
WSW
15
SSW
Wind State
cross
cross-on
cross
glassy
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-on
cross
cross
cross
cross
cross
cross-on
cross
High Tide
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
3:20PM2.53m
3:57AM2.70m
Low Tide
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
9:17AM0.38m
9:36PM0.05m
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
<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
26
23
26
26
24
26
25
23
26
25
23
Feels °C
29
25
26
29
27
26
26
26
25
25
25
24
28
26
25
25
23
22
26
24
24
  • Map Icons:
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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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