Surf Forecasts:
Right and Left Side surf forecast from 24 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 2.5ft (0.7m), 13s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 30 Aug, 7PM (local time) - 7ft (2.2m), 12s period, W swell with 1,288 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 10PM (local time) - 2ft (0.6m), 11s period with NW 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 Thursday (Aug 27) at 10PM. The primary swell is predicted to be 0.6m and 11s period. 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 2.2m 12s and forecast to arrive on Sunday (Aug 30) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Friday (Aug 28) at 4PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 27th Aug) | 2ft (0.6m) 11s |
| Best Surf | 4AM (Fri 28th Aug) | 2.5ft (0.7m) 13s |
| Most Powerful | 7PM (Sun 30th Aug) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the forecast for Right and Left Side. Gotta be straight with you—this reef setup is a bit of a moody spot, and it ain’t looking like a classic run for the next couple of weeks.
Right now we’re stuck in a bit of a funk. From Tuesday the 25th of August right through to the end of the month, the onshore cross-winds just won’t quit. The swell is tiny, only 2ft to 2ft, and the energy is weak (combined energy under 175). Add in the risk of thunderstorms and it’s just a mess. You’re better off staying home or doing a beach clean-up. The whole first week is a write-off for any kind of decent wave.
We’ve got a noticeable gap of poor conditions from the 25th through to the 1st of September.
Things finally start to look up on Wednesday the 2nd of September. The wind swings to a light cross-offshore breeze from the east, and the swell cleans up. We’re looking at 4ft to 5ft of swell from the west, with a solid 10-second period. The energy is moderate (485 in the morning), but more importantly, the surface will be clean. This is your best chance in the first week to get a few reef runners. Crowds are *sometimes* a thing here, so you might have a few others in the water, but it’s worth it for the shape.
The 3rd and 4th of September are a total write-off again—big winds and tiny surf, so don’t even bother.
Now, hold onto your board. Saturday the 5th of September is the standout session. We’ve got a pulse of solid groundswell from the west, pushing 7ft to 8ft. The period is 12 to 13 seconds, meaning proper long-period energy. The combined energy is massive (1349 to 1954), so this is a strong, powerful swell. Wind is light and cross-on, so it won’t be perfect, but the size and energy are undeniable. This is advanced territory—over 7ft is big for a reef break, and it will be a heavy, committed wave. Only for experienced surfers who know the reef. The shape should be good on a west swell, but expect some texture from the breeze.
The 6th of September is still big but the wind gets messy again, and then by the 7th it’s back to choppy, lumpy conditions. So that Saturday window is the one to aim for.
The final bright spot is on Tuesday the 8th of September. Swell drops back to a clean 3ft to 3ft from the west-northwest, but the wind goes glassy in the afternoon. This is a mellow, clean session for a longboard or a fun shape. The energy is low (234) but the conditions are perfect. If the big Saturday swell is too much, this is a much more manageable, clean option.
So, to wrap it up: the first week is a bust. The 2nd of September gives you a clean, fun day. The 5th of September is the big, powerful swell for experts only. And the 8th of September is your glassy, small-wave clean-up day. Don’t get your hopes up for the rest of it.
Rusty.
Short Range ForecastHeavy rain (total 44mm), heaviest during Mon night. Warm (max 29°C on Mon night, min 26°C on Thu afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 74mm), heaviest during Sun afternoon. Warm (max 28°C on Fri morning, min 25°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the WSW by Fri afternoon). | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | NNW 10 | ENE 13 | ENE 13 | W 8 | ENE 12 | NW 11 | ENE 11 | NW 10 | NW 10 | NW 11 | ENE 13 | ENE 12 | W 9 | W 8 | ENE 11 | NW 12 | W 9 | W 12 | W 11 |
Wave Graph | |||||||||||||||||||
90 | 139 | 135 | 108 | 82 | 81 | 74 | 69 | 68 | 72 | 109 | 99 | 985 | 418 | 50 | 74 | 497 | 1236 | 1037 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 4:06AM0.79m | 7:38PM0.81m | 5:07AM0.81m | 8:01PM0.83m | 6:01AM0.83m | 8:21PM0.85m | 6:53AM0.85m | 8:41PM0.87m | 7:43AM0.85m | 9:00PM0.88m | 8:35AM0.85m | 9:20PM0.89m | |||||||
Low Tide | 11:37PM0.69m | 11:57AM0.17m | 00:23AM0.66m | 12:37PM0.16m | 1:03AM0.62m | 1:14PM0.17m | 1:40AM0.58m | 1:49PM0.19m | 2:17AM0.52m | 2:24PM0.24m | 2:55AM0.45m | 2:58PM0.30m | 3:34AM0.38m | ||||||
— | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | — | 6:37 | — | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | |
mm | 7 | 3 | 6 | 8 | 3 | 1 | 2 | 8 | 6 | 9 | 6 | 4 | 13 | 7 | 8 | 6 | 8 | 13 | 33 |
Temp °C | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 33 | 30 | 30 | 30 | 32 | 31 | 32 | 32 | 30 | 30 | 28 | 28 | 28 | 30 | 29 | 29 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 10 | WSW 9 | SW 8 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | NW 12 | WNW 12 | NE 11 | W 11 |
637 | 567 | 374 | 125 | 165 | 138 | 97 | 105 | 102 | 52 | 109 | 99 | 98 | 91 | 50 | 74 | 98 | 29 | 1037 | |
Swell 2 Height (m) Direction Period (s) | NNW 10 | ENE 13 | ENE 13 | W 8 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | NW 11 | NW 10 | NW 10 | SE 9 | NW 10 | NW 10 | ENE 11 | NE 11 | SE 9 | NE 10 |
90 | 139 | 135 | 108 | 82 | 81 | 74 | 69 | 68 | 72 | 65 | 37 | 14 | 26 | 25 | 46 | 29 | 22 | 27 | |
Swell 3 Height (m) Direction Period (s) | S 8 | NNW 10 | NNW 10 | ENE 13 | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | ENE 11 | SE 9 | SE 9 | NW 10 | SE 10 | SE 10 | SE 10 | SE 9 | S 8 | SE 9 |
41 | 68 | 38 | 93 | 67 | 75 | 50 | 68 | 65 | 64 | 13 | 13 | 4 | 14 | 15 | 14 | 14 | 1 | 22 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 7 | — | — | SSW 6 | WSW 7 | WSW 8 | W 9 | W 8 | W 8 | W 8 | W 9 | W 12 | — |
— | — | — | — | — | — | 147 | — | — | 52 | 516 | 604 | 985 | 418 | 272 | 301 | 497 | 1236 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 230 | 16 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 0 | 16 | 230 | 1835 | 16 | 11 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Guam | |||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











