Surf Forecasts:
Right and Left Side surf forecast from 2 Sep 2026:
- Most powerful swell: Friday 4 Sep, 4AM (local time) - 8ft (2.4m), 9s period, W swell with 971 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 2.4m 9s and forecast to arrive on Friday (Sep 04) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 9s period and expected on Friday (Sep 04) at 7AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 4th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cookin’ for Right and Left Side.
Honestly, it’s a tough start. The first week and a half is pretty much a write-off. We’re looking at a solid 9-day stretch where the wind is just junk – mostly cross-onshore, gusty, and keeping things choppy and messy. There’s swell popping up, but it’s not doing us any favours with that wind. You’ll see waves around 4ft to 7ft, mostly from the west, but the conditions are just poor. Don’t bother paddling out until things change.
Then, around Friday the 11th, things start to get interesting. The swell picks up big time, hitting 10ft from the west on Friday morning, with a solid 11-second period. The combined energy is a massive 2207 (strong to very strong), so there’s some serious power in the water. That’s expert territory for sure – too big for nearly everyone. The wind is still a bit cross, but it’s light, so it’s a step in the right direction.
The real standout window opens up on Saturday the 12th afternoon. That’s the one to circle. The wind drops to glassy – dead calm, 0 mph – and we’ve got a clean 8ft west swell rolling in with an 11-second period. The water here is about average for the time of year, sitting at 86°F. This is a reef break, and with that long period, it’s going to be lined up and punchy. It’s an advanced spot, and it’s inconsistent, so you’ll want to be patient, but when a set comes through, it’ll be worth the wait. Expect some crowds here, as it’s a known spot.
Sunday the 13th morning is another cracker – glassy again, with a 10ft west swell and a 12-second period. The energy is through the roof at 2486. This is big, powerful, and only for the experienced crew. If you’re not comfortable charging, give this one a miss.
There’s a drop-off mid-week, but then Wednesday the 16th morning brings another good one. Clean, glassy conditions with a 8ft west swell, 10-second period, and strong energy (1494). That’s a solid, surfable morning for the advanced guys.
The long-range stuff around the 17th looks promising but less certain – wave heights around 8ft from the west again, but the wind is a little more cross, so not as clean as the glassy windows.
So, to sum it up: the first 9 days are a total dud. The best on offer is Saturday the 12th afternoon and Sunday the 13th morning. That’s your window. Mark it. Be there.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Fri night. Warm (max 28°C on Wed morning, min 26°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 56mm), heaviest during Sat morning. Warm (max 27°C on Sat afternoon, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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) | W 9 | W 9 | W 8 | WNW 9 | WNW 12 | WNW 11 | WNW 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | W 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
Wave Graph | |||||||||||||||||||||
304 | 440 | 305 | 199 | 385 | 521 | 416 | 800 | 525 | 356 | 305 | 228 | 181 | 177 | 258 | 269 | 480 | 631 | 676 | 551 | 391 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:32AM0.79m | 10:34PM0.89m | 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 | ||||||||
Low Tide | 4:48PM0.54m | 5:51AM0.21m | 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 | ||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | |
mm | — | 2 | 11 | 1 | 4 | 3 | 1 | 3 | 11 | 19 | 1 | 10 | 5 | 4 | 9 | 2 | 4 | 2 | — | 1 | 5 |
Temp °C | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 25 | 27 | 27 | 26 | 25 | 26 | 25 | 25 | 26 | 27 | 27 | 26 |
Feels °C | 30 | 31 | 32 | 29 | 26 | 29 | 28 | 28 | 30 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 29 | 27 | 28 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | NE 9 | W 9 | W 8 | WNW 9 | WNW 12 | WNW 11 | WNW 10 | NE 9 | SE 8 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | W 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
43 | 351 | 305 | 199 | 385 | 521 | 416 | 21 | 18 | 356 | 305 | 228 | 181 | 177 | 258 | 269 | 480 | 631 | 676 | 551 | 391 | |
Swell 2 Height (m) Direction Period (s) | E 10 | NE 9 | NE 10 | WSW 8 | NE 9 | NE 9 | NE 8 | SE 8 | ESE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | WNW 11 | SE 9 | SE 9 | SE 9 | ENE 9 | ENE 9 |
8 | 41 | 46 | 98 | 29 | 28 | 11 | 17 | 11 | 26 | 61 | 60 | 33 | 46 | 33 | 81 | 21 | 29 | 21 | 28 | 28 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 10 | SE 9 | NE 10 | E 9 | SE 9 | SE 8 | ESE 11 | E 9 | SE 8 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | SE 9 | ENE 12 | ENE 11 | ENE 11 | SE 11 | SE 10 |
3 | 8 | 13 | 44 | 7 | 12 | 14 | 12 | 6 | 17 | 16 | 14 | 7 | 8 | 15 | 30 | 14 | 12 | 22 | 29 | 24 | |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | — | — | WSW 8 | SW 6 | WSW 8 | W 9 | W 9 | — | — | — | — | — | — | — | — | — | — | — | — |
304 | 440 | — | — | 270 | 202 | 466 | 800 | 525 | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 16 | 230 | 1303 | 1905 | 232 | 16 | 1898 | 16 | 11 | 16 | 11 | 1289 | 11 | 11 | 11 | 11 | 16 | 2064 |
Best forecast wave conditions in Guam | |||||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||||
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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.











