San Mateo Surf Break

Lat Long: 0.95° S 80.83° W

San Mateo Surf Forecast and Surf Report

Issued: 12 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's San Mateo sea temperature is
26.9° 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 31 Jul 2026:

  • Best quality surf: Thursday 6 Aug, 7AM (local time) - 2.5ft (0.8m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 10PM (local time) - 3.5ft (1.0m), 14s period, SW swell with 407 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 7AM (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 Monday (Aug 03) at 7AM. The primary swell is predicted to be 0.6m and 13s 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 14s and forecast to arrive on Wednesday (Aug 05) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Friday (Jul 31) at 4PM.

Wave TypeTime (-05) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Mon 3rd Aug)2ft (0.6m) 13s
Best Surf 7AM (Thu 6th Aug)2.5ft (0.8m) 13s
Most Powerful10PM (Wed 5th Aug)3.5ft (1.0m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s take a look at what’s cookin’ for the next couple of weeks.

Alright, straight up – this is a tough run. We’re looking at a long, drawn-out stretch of mostly poor conditions with a couple of sweet little windows that could be worth your time if you’re patient. The swell is hanging around, but the wind is just a mess for most of it. The standout is clearly the first week of August.

We start off on Friday, July 31st. San Mateo is seeing 3ft of swell from the SW with a 13-second period, giving us moderate wave energy (364). But it’s a write-off – cross-shore wind and a cross-chop. The afternoon is even worse with cross-onshore wind. Just a sad, choppy mess. The weekend doesn’t get much better. Saturday August 1st has 2ft from the SW, but it’s still cross-shore and cross-onshore, and the energy is moderate (215-244). Sunday August 2nd is the same story with 2ft swell. The water temp is about average for this time of year, so no surprises there.

Now, the first real glimmer of hope comes on Thursday, August 6th. The morning session is where it’s at. We’ve got 3ft of swell from the SW, but the period jumps to 13 seconds (moderate energy at 375), and the wind is *glassy*. That’s a major positive. Glassy conditions at San Mateo point? That’s a rare treat. The break is a point, so it’ll handle that long-period swell nicely. The only bummer is it’s inconsistent, so you’ll be sitting and waiting for the sets. Still, this is the best on offer in the whole outlook. The afternoon on the 6th gets ruined by a cross-onshore wind, so hit it early.

The following week has a few more marginal moments. Friday, August 7th morning has a pulse of 3ft from the SW with a 16-second period – that’s a long-period groundswell, and the energy is strong (609). The wind is cross-shore though, so it’s a bit of a tease. The set waves will be long and clean, but paddling out will be a chore. Sunday, August 9th is a wash. Then on Monday, August 10th, we get a nice morning: 3ft from the SW, 14-second period, moderate energy (402), and clean cross-offshore wind. That’s very surfable, but it’s still a marginal call.

Further out, there’s a promising morning on Thursday, August 13th. 2ft from the SW, 16-second period, moderate energy (313), and clean cross-offshore wind with a light breeze – that’s another one to pencil in for a quick session. After that, the energy stays moderate but the wind turns back to cross-shore, so it’s borderline.

Overall, the best of the bunch is Thursday, August 6th morning for the glassy conditions, and Monday, August 10th morning for the clean cross-offshore wind. The rest is a lot of waiting for the wind to play ball. This spot is inconsistent, so a blank run is pretty normal here. Don’t lose hope, though – the forecasts can change.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 27°C on Mon morning, min 24°C on Sun night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
AM
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
1
1
0
0
1
0
0
1
0
0
0
0
0
0
0
1
2
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)
1
SW
13
0.9
SW
13
0.8
SW
12
0.7
SW
12
0.7
SW
12
0.5
SW
15
0.6
WSW
15
0.6
SW
14
0.6
SW
13
0.9
SW
10
0.9
SW
10
0.9
SW
10
0.5
SW
12
0.5
SW
12
0.4
SW
11
0.6
SW
12
0.6
SW
12
0.7
SW
14
0.8
SW
13
0.6
SW
18
0.8
SW
17
Wave Graph
Metric surfscale
Energy kJ
305
273
207
137
132
114
142
164
144
140
139
134
72
69
46
95
92
189
246
199
362
Wind (km/h)
20
SSW
20
SW
15
SW
15
SSW
20
WSW
15
SW
15
SSW
20
SW
15
SSW
10
SSW
25
SW
20
SSW
10
SSW
25
SW
15
SSW
5
SSW
20
WSW
15
SW
5
SSW
20
WSW
15
SW
Wind State
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
glassy
cross-on
cross
High Tide
4:58AM2.44m
5:01PM2.35m
5:31AM2.49m
5:37PM2.35m
6:03AM2.51m
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
Low Tide
11:03AM0.52m
11:13PM0.28m
11:38AM0.48m
11:46PM0.31m
12:14PM0.46m
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
part cloud
clear
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rain showers
part cloud
clear
part cloud
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part cloud
part cloud
part cloud
clear
part cloud
part cloud
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
1
Temp °C
27
26
24
27
26
25
26
26
24
27
26
24
27
26
24
26
26
25
27
26
25
Feels °C
27
26
25
28
26
26
27
26
24
28
26
24
28
26
25
29
26
26
29
26
27
  • 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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