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: 9 am 31 Jul 2026 (local time)

Forecast update in  hr  min

Today's Right and Left Side sea temperature is
29.7° C
0.3° 

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 31 Jul 2026:

  • Most powerful swell: Thursday 6 Aug, 4PM (local time) - 10ft (3.0m), 11s period, W swell with 2,172 kJ wave energy.

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

The most powerful waves expected at Right and Left Side in the next 16 days are 3.0m 11s and forecast to arrive on Thursday (Aug 06) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Tuesday (Aug 04) at 10AM.

Wave TypeTime (ChST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4PM (Thu 6th Aug)10ft (3.0m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s just rip the band-aid off right now: this is a grim 16-day outlook for Right and Left Side. We’re looking at a long stretch of poor surf and ugly conditions, so don’t get your hopes up.

Right and Left Side is a tricky reef setup, and it rarely breaks, so when it’s this messy, it’s just not worth paddling out. The first week is a write-off. From Friday 31 July right through to the end of the first week, we’ve got nothing but risk of thunderstorms, fresh to strong cross and cross-onshore winds, and lumpy, messy, choppy water. The swell is there, but it’s totally blown out. We’re talking moderate to strong combined wave energy (730 to 1537) but with poor surf quality every single session. The water temperature is around 86°F, which is about average for this time of year, so at least you won’t freeze.

The second week doesn’t get much better. Around Tuesday 4 August, the swell bumps up to 5ft to 6ft from the NNE and N, but the wind stays cross and messy, with strong breeze strength. By Wednesday 6 August afternoon, we see a 10ft west swell with a short period of 11 seconds – that’s a lot of water moving, but the wind is still fresh cross-shore and lumpy, so it’s blown-out junk. The combined energy hits 3267, but the commentary says “poor surf conditions” – no good.

The standout period, if you can call it that, is around Monday 10 August and Tuesday 11 August. The swell is huge – 16ft from the west, with a 12-second period, and combined energy in the 6700 to 7900 range. That’s heavy, powerful groundswell. But the wind is still strong cross-onshore or cross, making it messy and dangerous. This is only for experts, and honestly, it looks more like a kite-surfing day than a paddle-surfing day. The water temperature is not given for those days, but given the run-up, it’s likely still warm.

From Wednesday 12 August afternoon onward, the swell drops off a cliff – down to 1ft, then 1.0ft, 0.7ft, and eventually 0.3ft. Combined energy drops to double digits. The reef is barely breaking, and the wind stays strong and cross. Really, after the 12th, there’s nothing to chase.

So, bottom line: there’s no good surf on offer in this 16-day window. The break is inconsistent, and when it does have swell, the wind ruins it. The big west swell around the 10th and 11th is the only thing that gets the heart pumping, but it’s a mess. Don’t bother packing the board – go find something else to do.

Rusty.

Short Range Forecast

Heavy rain (total 42mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 28°C on Fri afternoon). Winds increasing (light winds from the W on Fri night, strong winds from the W by Sun afternoon).

Days 4-6 Weather Summary

Heavy rain (total 42mm), heaviest during Tue afternoon. Warm (max 29°C on Mon morning, min 27°C on Tue morning). Mainly strong winds.

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
0
0
0
0
0
0
0
0
0
0
0
0
1
0
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)
0.4
ENE
8
0.4
ENE
18
1
E
15
1.3
E
14
1.3
ENE
14
1.4
ENE
16
1.4
ENE
14
1.4
ENE
15
1.4
ENE
14
1.4
NE
15
1.3
NE
15
1.4
NNE
15
1.6
NNE
15
1.7
N
15
2
N
15
1.8
NNW
14
1.9
NNW
14
1.9
NNW
14
1.7
NNW
14
3
W
11
1.6
NW
14
Wave Graph
Metric surfscale
Energy kJ
22
102
447
713
704
894
778
857
785
903
686
829
1045
1241
1676
1344
1517
1435
1227
2172
1049
Wind (km/h)
15
WSW
20
W
15
W
25
W
25
WNW
20
WNW
35
W
40
W
40
W
35
WSW
40
WSW
40
WSW
45
WSW
40
WSW
35
SW
35
SW
35
SW
35
SW
35
SW
35
WSW
35
WSW
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
10:03PM0.88m
8:26AM0.83m
10:24PM0.89m
9:17AM0.81m
10:44PM0.89m
10:13AM0.78m
11:06PM0.90m
11:17AM0.74m
11:30PM0.90m
12:35PM0.71m
11:59PM0.89m
2:12PM0.71m
00:35AM0.89m
Low Tide
2:52PM0.14m
3:26AM0.59m
3:25PM0.19m
4:08AM0.54m
3:58PM0.26m
4:51AM0.48m
4:31PM0.34m
5:37AM0.41m
5:06PM0.43m
6:27AM0.34m
5:46PM0.52m
7:23AM0.27m
6:34PM0.61m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:49
6:47
6:47
6:46
6:46
6:46
 mm
2
4
6
5
4
8
4
4
5
3
6
12
8
10
3
1
2
18
Temp °C
29
29
28
29
29
28
28
28
28
29
28
28
27
28
28
29
29
29
29
28
28
Feels °C
32
31
31
30
30
30
27
26
27
28
27
27
24
27
27
28
28
29
29
27
27
  • 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 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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