San Juan Surf Break

Lat Long: 16.66° N 120.32° E

San Juan Surf Forecast and Surf Report

Issued: 7 pm 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's San Juan sea temperature is
30.1° C
0.7° 

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


San Juan surf forecast from 19 Jul 2026:

  • Most powerful swell: Saturday 25 Jul, 8AM (local time) - 0.5ft (0.2m), 5s period, N swell with 2 kJ wave energy.

Best Forecast Surf Conditions for San Juan this week:

The most powerful waves expected at San Juan in the next 16 days are 0.2m 5s and forecast to arrive on Saturday (Jul 25) at 8AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Monday (Jul 20) at 11AM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Sat 25th Jul)0.5ft (0.2m) 5s

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


The Lowdown

Alright, Rusty here. Let’s break down the next couple of weeks in feet and miles per hour. I’ll be honest—it’s a long, flat road ahead.

We’re stuck in a dry spell right from the start. From July 20th all the way through to the morning of August 3rd, there’s just no real surf. That’s a massive gap. We’re looking at tiny bumps—0.3ft to 0.7ft tops—and the combined swell energy is weak, mostly hitting 1 or 2. The wind is light and often cross or cross-off, which would be perfect if there was any swell, but there isn’t. It’s a tough, slow period.

The only thing worth mentioning pops up on Monday afternoon, August 3rd. San Juan (Filipinas) gets a 4ft swell from the west, with a period of 7 seconds. That’s a short-period windswell, nothing fancy. The combined wave energy hits 107, which is at least moderate. The wind goes glassy, so the surface will be clean. For a spot that’s been dead, this is the one to look at—but don’t overhype it. The swell direction is west, and this break likes a north swell, so it won’t be perfect. The wave report still calls it “poor surf conditions,” so it’s more of a fun novelty than a proper session.

After that, Tuesday morning on August 4th drops right back to a tiny 1ft swell out of the west-northwest, with only 20 in the energy department. The window slams shut. San Juan is an inconsistent reef break that’s fine for beginners when it works, and this brief pulse is as good as it gets in a very flat outlook.

Bottom line: a long stretch with nothing, a short-lived and average little wave on August 3rd, and then back to zero. Water temp is average for the time of year, but that’s small comfort when you’re staring at flat water. Forecasts can always change, but right now, it’s a waiting game.

Rusty.

Short Range Forecast

Heavy rain (total 34mm), heaviest during Sun night. Warm (max 30°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Wed night. Warm (max 29°C on Thu morning, min 26°C on Wed night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
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
0
0
0
0
0
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
WSW
7
0.7
WSW
7
0.7
WSW
7
0.6
WSW
7
0.1
NW
4
0.6
WSW
7
0.1
W
7
0.1
W
7
0.5
W
7
0.5
WSW
7
0.4
WSW
7
0.4
WSW
7
0.4
WSW
7
0.1
N
5
0.4
SW
7
0.4
SW
7
0.2
N
5
0.4
SW
7
0.3
WSW
7
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
1
0
1
1
0
0
0
0
0
1
0
0
2
0
0
Wind (km/h)
10
SSE
15
SW
10
W
5
SE
10
SSW
5
WNW
5
E
10
SW
10
NW
5
E
10
W
10
NNW
5
SE
10
WSW
10
NW
5
SE
10
SW
5
NW
5
SE
Wind State
off
cross-off
cross
glassy
cross-off
cross-on
glassy
cross-off
cross-on
cross-off
cross
on
cross-off
cross
on
cross-off
cross-off
on
off
High Tide
11:53AM0.65m
3:56AM0.60m
3:57AM0.70m
4:20AM0.79m
4:52AM0.86m
5:30AM0.92m
Low Tide
8:23PM0.27m
7:58PM0.33m
7:12PM0.35m
5:56PM0.32m
4:29PM0.25m
4:19PM0.19m
4:38PM0.14m
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:35
5:35
5:35
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:34
6:34
6:34
6:34
6:32
6:32
 mm
8
3
12
1
2
3
5
5
2
7
2
1
2
4
Temp °C
28
29
30
28
29
29
28
29
29
28
29
29
28
29
29
29
29
29
28
Feels °C
32
32
34
32
33
32
33
33
32
33
33
32
33
33
33
34
33
33
33
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the San Juan Surf forecast

The above surf forecast table for San Juan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at San Juan can be found by selecting the local surf guide option on the grey menu. Our San Juan 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 Juan) 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 Juan 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.

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