
Surf Forecasts:
Right and Left Side surf forecast from 3 Sep 2026:
- Most powerful swell: Friday 4 Sep, 7AM (local time) - 7ft (2.2m), 9s period, W swell with 810 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 2.2m 9s and forecast to arrive on Friday (Sep 04) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Thursday (Sep 03) at 1PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Fri 4th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Right and Left Side’s been a tough beat this September—got some size but the wind’s been a right bastard. For the first week and a half, it’s pretty much a write-off. That 1 ft to 6 ft swell from the WNW and W is there, but the wind’s cross, cross-on, or onshore nearly the whole time, and we’re talking 12 to 19 mph winds for much of it. The wave energy’s all over the place, getting up to 486 on Friday the 4th afternoon, but it’s useless—short period wind swell at 8 seconds, just a lumpy, choppy mess. Not a single surfable wave in there, just storm threat and frustration.
Even when the swell drops to 4 ft on the 6th and 7th, the wind’s still junk. The 9th morning shows a little 5 ft WNW swell with an offshore wind, but the guidance gives that a flat zero—poor surf conditions, so don’t get your hopes up.
Then from the 12th into the 13th, things start to shift. Saturday the 12th morning is still marginal with a 5 ft W-NW swell and 8-second period—probably a mushy closeout. But Sunday the 13th morning is where it finally comes together. That’s the standout. You’ve got a clean 3 ft swell from the ENE with a 13-second period, a proper groundswell, and a light offshore wind from the SSE at just 3 mph. That’s glassy, clean surf. The wave energy’s solid at 520, and for a reef break like this, long-period ENE swell will line up nicely. It’s not huge, but it’ll be fun, and the water’s sitting at a warm 86°F, right about normal for the time of year.
After that, it fades. Monday the 14th and Tuesday the 15th mornings keep a similar 3 ft to 3 ft ENE swell with clean-ish winds, but the energy drops and the surf gets marginal again. By Wednesday the 16th it’s back to poor conditions, with the swell dropping to 3 ft and cross-onshore winds from the WSW. The rest of the outlook into the 18th is just more of that—small, messy, and not worth paddling out for.
So the one to circle on the calendar is Sunday the 13th of September, early. That’s your clean window. It’s an inconsistent break—no mistake—but when it’s on like that, it’s a sweet little session. Keep an eye on the tides that morning, and you’ll be smiling.
Rusty
Short Range ForecastHeavy rain (total 62mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 25°C on Sat afternoon). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Sun afternoon. Warm (max 28°C on Mon morning, min 26°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | PM | 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) | NW 13 | WNW 12 | WNW 11 | WNW 10 | W 8 | W 8 | W 8 | W 8 | WNW 8 | W 8 | W 8 | W 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 9 |
Wave Graph | |||||||||||||||||||||
45 | 174 | 511 | 399 | 465 | 411 | 338 | 297 | 259 | 168 | 142 | 140 | 266 | 197 | 211 | 344 | 550 | 437 | 428 | 322 | 307 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 12:49PM0.76m | 11:08PM0.88m | 2:25PM0.75m | 11:51PM0.87m | 4:09PM0.77m | 00:49AM0.85m | 5:24PM0.81m | 2:06AM0.84m | 6:12PM0.84m | 3:32AM0.84m | 6:48PM0.87m | 4:51AM0.86m | 7:18PM0.89m | ||||||||
Low Tide | 5:32PM0.62m | 6:50AM0.18m | 6:28PM0.68m | 7:58AM0.15m | 7:54PM0.72m | 9:09AM0.13m | 9:37PM0.73m | 10:17AM0.12m | 10:58PM0.70m | 11:18AM0.11m | 11:58PM0.64m | 12:11PM0.13m | 00:47AM0.57m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | |
mm | 2 | 5 | 4 | — | 3 | 7 | 11 | 13 | 17 | 1 | 3 | 1 | — | — | — | — | — | 4 | — | — | — |
Temp °C | 28 | 27 | 28 | 29 | 28 | 28 | 28 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 28 | 26 | 28 | 30 | 28 | 30 | 30 | 27 | 28 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 29 | 29 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | NE 10 | WNW 12 | WNW 11 | WNW 10 | NE 9 | SE 8 | SE 10 | SE 10 | SE 10 | SE 10 | W 8 | W 8 | SE 9 | SE 9 | WNW 9 | SE 9 | WNW 11 | NNE 13 | WNW 10 | WNW 9 | WNW 9 |
33 | 174 | 511 | 399 | 21 | 18 | 25 | 48 | 48 | 33 | 142 | 140 | 30 | 30 | 211 | 21 | 550 | 57 | 428 | 322 | 307 | |
Swell 2 Height (m) Direction Period (s) | NW 13 | NE 9 | NE 9 | NE 8 | SE 8 | SE 11 | SE 8 | ENE 9 | WNW 12 | WNW 10 | SE 10 | SE 10 | ENE 8 | ENE 12 | SE 9 | ENE 11 | ENE 9 | ENE 9 | NNE 12 | NNE 12 | ENE 15 |
45 | 29 | 12 | 11 | 14 | 18 | 17 | 16 | 14 | 36 | 33 | 33 | 14 | 14 | 29 | 22 | 28 | 28 | 49 | 47 | 71 | |
Swell 3 Height (m) Direction Period (s) | E 10 | ESE 9 | SE 9 | E 9 | ESE 11 | ENE 9 | ENE 9 | WNW 13 | ENE 13 | ENE 9 | ENE 9 | ENE 8 | S 8 | ENE 8 | E 9 | NNE 15 | SE 11 | SE 10 | ENE 9 | ENE 9 | ENE 9 |
8 | 9 | 19 | 6 | 12 | 7 | 16 | 16 | 17 | 7 | 15 | 14 | 5 | 7 | 6 | 21 | 29 | 24 | 28 | 17 | 16 | |
Wind waves Height (m) Direction Period (s) | W 8 | WSW 8 | WSW 8 | SW 6 | W 8 | W 8 | W 8 | W 8 | WNW 8 | W 8 | WSW 7 | — | WNW 9 | WNW 9 | — | WNW 9 | — | WNW 10 | — | — | — |
545 | 456 | 480 | 161 | 465 | 411 | 338 | 297 | 259 | 168 | 30 | — | 266 | 197 | — | 344 | — | 437 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2064 | 2068 | 1835 | 1835 | 2064 | 2073 | 16 | 16 | 1858 | 11 | 11 | 11 | 11 | 11 | 1958 | 11 | 1958 | 1958 | 2064 | 1905 | 1835 |
Best forecast wave conditions in Guam | |||||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live 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.










