Right and Left Side Surf Break

Lat Long: 13.48° N 144.75° E

GUAM

Right and Left Side Surf Forecast and Surf Report

Issued: 3 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Right and Left Side sea temperature is
29.7°C
0.4° 

Right and Left Side surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Right and Left Side surf forecast from 11 Sep 2026:

  • Best quality surf: Friday 11 Sep, 10PM (local time) - 2.5ft (0.7m), 14s period, E swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 7AM (local time) - 5ft (1.6m), 12s period, ENE swell with 715 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 10PM (local time) - 2.5ft (0.7m), 14s period with E swell.

Best Forecast Surf Conditions for Right and Left Side this week:

The surf forecast for Right and Left Side over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 11) at 10PM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Right and Left Side in the next 16 days are 1.6m 12s and forecast to arrive on Thursday (Sep 17) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Sep 18) at 1PM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Fri 11th Sep)2.5ft (0.7m) 14s
Best Surf10PM (Fri 11th Sep)2.5ft (0.7m) 14s
Most Powerful 7AM (Thu 17th Sep)5ft (1.6m) 12s

Table - best surf conditions forecast for Right and Left Side over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s break down what’s coming our way over the next couple of weeks. It’s gonna be a slow start, but there’s a couple of windows worth paddling out for.

We kick off on Friday the 11th, but it’s a dud. There’s a tiny 2ft easterly swell, but with a cross-shore breeze and weak combined swell energy (277), the conditions are just poor. Forget it.

The real action starts Saturday the 12th and Sunday the 13th. Saturday morning at Right and Left Side is your best bet early on. We’ve got a clean 2ft swell from the east, with a period of 13 seconds – that’s a nice little groundswell. The wind is light and cross-offshore, making for clean, glassy conditions. Water temperature is about 86°, which is normal for the time of year. The combined swell energy is moderate at 230, so it’s not huge, but it’s fun and rideable. Keep in mind, this break is inconsistent, but when it comes through, it’ll be good. Expect some crowds, as it’s a popular spot.

Sunday holds similar size, with the swell bumping up slightly to 3ft and even lighter winds from the ENE. Another clean morning session. Monday the 14th is similar in the morning, but the wind turns a bit more cross, so it’s a step down.

After Monday, it goes quiet. From Tuesday the 15th through the third week, conditions get messy. Winds turn onshore and pick up, making the small 2ft to 5ft swell choppy and not worth the paddle. There’s a big gap with no real recommendations here.

Now, here’s the big one for the experts. Thursday the 24th of September is the standout. The morning sees a solid 8ft swell rolling in from the west, with a 13-second period. That’s a powerful groundswell, and the combined swell energy is massive at 3231. At this size, it’s only for experienced surfers – beginners stay on the beach. The wind is fresh but cross-offshore, so the faces should be clean. That’s the best session in the whole 16-day window, but it’s a long way out, so keep an eye on it.

The days around that, the 22nd and 23rd of September, also see big swells around 6ft to 7ft, but with cross-shore winds and lumpy conditions, they won’t be as clean.

So, to wrap it up: the first weekend (12th and 13th) is your go-to for clean, small waves. The real prize is Thursday the 24th for anyone who can handle some size. The rest is mostly a miss.

Stay stoked, see you out there.
Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Warm (max 29°C on Sat morning, min 27°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Tue night. Warm (max 29°C on Thu morning, min 26°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the W by Thu morning).

Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
2
2
2
2
2
2
2
1
0
1
1
2
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)
0.7
E
14
0.7
E
14
0.7
E
13
0.7
E
13
0.9
ENE
13
0.8
ENE
13
0.8
ENE
12
0.9
ENE
12
0.9
ENE
12
0.8
ENE
12
0.8
NE
9
0.7
ENE
13
0.7
ENE
13
0.8
ENE
14
0.8
ENE
13
0.7
ENE
13
1.3
ENE
13
1.5
ENE
12
1.4
NE
12
1.4
NE
12
Wave Graph
Metric surfscale
Energy kJ
184
198
173
173
282
215
198
203
215
176
93
181
181
236
204
151
504
626
619
558
Wind (km/h)
15
NE
5
E
10
ESE
10
ENE
5
ENE
5
ENE
5
ENE
0
E
10
ENE
10
NNE
5
NNE
5
NNW
5
NNW
5
W
20
W
20
NW
20
W
30
W
35
W
30
WSW
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross
cross-on
cross-on
cross-on
glassy
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
8:11PM0.90m
8:02AM0.88m
8:35PM0.90m
8:58AM0.87m
8:59PM0.90m
9:53AM0.85m
9:23PM0.88m
10:48AM0.81m
9:47PM0.86m
11:47AM0.78m
10:11PM0.83m
12:54PM0.75m
10:37PM0.81m
Low Tide
2:12AM0.40m
2:22PM0.31m
2:52AM0.33m
2:59PM0.39m
3:31AM0.28m
3:35PM0.47m
4:10AM0.24m
4:10PM0.54m
4:50AM0.22m
4:44PM0.60m
5:34AM0.23m
5:21PM0.64m
clear
rain showers
clear
thunderstorm
clear
clear
clear
clear
clear
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:24
6:23
6:22
6:22
6:22
6:21
 mm
1
1
2
2
11
2
2
2
4
Temp °C
28
27
29
29
27
29
29
28
29
28
27
28
28
27
28
28
28
29
28
28
Feels °C
30
31
32
32
31
32
32
32
32
31
31
32
32
31
29
30
31
29
27
29
  • 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 Right and Left Side Surf forecast

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

Right and Left Side is 1 km (1 miles) from Agana. If you plan a holiday in Guam, look for hotels and other accommodation in Agana. Agana has rooms for a wide range of budgets as well as car hire and transport links.

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