Surf Forecasts:
Right and Left Side surf forecast from 14 Sep 2026:
- Most powerful swell: Sunday 20 Sep, 7AM (local time) - 4.5ft (1.4m), 12s period, NNW swell with 497 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 1.4m 12s and forecast to arrive on Sunday (Sep 20) 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 1.9m 8s period and expected on Monday (Sep 21) at 7PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sun 20th Sep) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you – the outlook for Right and Left Side is a long, tough stretch. We've got a solid 16-day window, but the first week and a half is a write-off for any decent paddle surfing. The conditions are just too messy with strong winds and poor wave quality.
The first glimmer of something rideable doesn't show up until Thursday the 24th of September. Even then, it's a "poor surf conditions" call with a clean wind (cross-off from the SSW), but the swell is a weak 4ft from the NW with a moderate 12-second period. It's more of a "maybe it's not totally horrible" session than a "go get it" one. The combined wave energy is weak (362), so don't expect much push.
For the rest of the forecast, the pattern is the same: onshore and cross-shore winds, lumpy chop, and generally poor quality. A few days, like the 29th and 30th, do show a jump in swell size and period, with 5ft to 6ft of NW groundswell and a long 13-second period. This is where it gets interesting, but the winds are still cross or cross-off, keeping the quality marginal. The wave energy starts to build, hitting 1159 on the 29th, so there is real power in the water.
Now, the real standout is the morning of Wednesday the 30th of September. We see a solid 6ft NW groundswell with a long 13-second period, and the wind swings around to a clean cross-off from the south. The combined energy is strong (1384), meaning there's plenty of power. For an advanced crew, this could be the best session on offer. That long period groundswell should wrap in nicely at this reef setup. But remember, this spot is inconsistent, so it's not a given it'll be firing. The crowds are listed as 'sometimes', so you might get lucky and have it to yourself.
If you're a beginner, stay away from the 5ft+ days later in the run, and especially the 6ft on the 30th – that's expert territory. The whole first week is basically a kite-surfing show with those strong cross-shore winds and lumpy conditions. Not much for us.
Hang in there. The long-range promise of that last day is something to keep an eye on, but forecasts can change. Keep the board waxed just in case.
Rusty
Short Range ForecastModerate rain (total 18mm), heaviest on Mon night. Warm (max 29°C on Tue morning, min 27°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 111mm), heaviest during Sun morning. Warm (max 29°C on Fri morning, min 25°C on Sun morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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) | ENE 9 | ENE 9 | ENE 13 | ENE 14 | ENE 13 | ENE 10 | NE 9 | NE 12 | NE 10 | NNE 15 | NE 12 | NNE 11 | NNE 11 | N 11 | N 11 | NNW 11 | NNW 12 | NNW 11 | NNW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 180 | 226 | 181 | 183 | 195 | 320 | 216 | 343 | 185 | 142 | 314 | 186 | 187 | 335 | 426 | 454 | 422 | 353 | 307 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:48AM0.81m | 9:47PM0.86m | 11:47AM0.78m | 10:11PM0.83m | 12:54PM0.75m | 10:37PM0.81m | 2:16PM0.73m | 11:08PM0.78m | 3:51PM0.73m | 11:50PM0.76m | 5:02PM0.75m | 00:58AM0.74m | |||||||
Low Tide | 4:10AM0.24m | 4:10PM0.54m | 4:50AM0.22m | 4:44PM0.60m | 5:34AM0.23m | 5:21PM0.64m | 6:23AM0.24m | 6:07PM0.67m | 7:21AM0.25m | 7:20PM0.70m | 8:25AM0.26m | 9:08PM0.70m | |||||||
 |  |  |  |  | | | | | | | | | | | | | | | |
 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — |
mm | 5 | — | 4 | — | — | 2 | 3 | 2 | 2 | 4 | 1 | 3 | 13 | 9 | 6 | 22 | 39 | 14 | 9 |
Temp °C | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 26 | 27 | 27 |
Feels °C | 32 | 33 | 31 | 31 | 32 | 31 | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 31 | 31 | 31 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | NE 8 | NE 8 | NE 9 | ENE 10 | NE 9 | NE 12 | NE 10 | NE 10 | NE 12 | NNE 11 | WSW 8 | N 11 | N 11 | NNW 11 | NNW 12 | NNW 11 | NNW 11 |
| kJ | 180 | 226 | 118 | 166 | 145 | 320 | 216 | 343 | 185 | 113 | 314 | 186 | 197 | 335 | 426 | 454 | 422 | 353 | 307 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | ENE 13 | SW 8 | SSW 7 | SW 8 | SSW 7 | NNE 15 | SSE 7 | NE 11 | NNE 11 | SSE 8 | SSE 8 | S 6 | S 7 | NE 11 | NE 10 |
| kJ | 54 | 94 | 96 | 68 | 195 | 66 | 49 | 67 | 29 | 142 | 16 | 31 | 187 | 72 | 70 | 20 | 33 | 72 | 85 |
Swell 3 Height (m) Direction Period (s) | ENE 14 | SW 7 | ENE 13 | ENE 14 | SW 8 | S 7 | SW 8 | SE 8 | SSE 7 | WSW 8 | SE 10 | SE 9 | S 7 | NE 10 | NE 10 | SSE 8 | NE 11 | E 9 | SSE 8 |
| kJ | 76 | 7 | 181 | 183 | 58 | 37 | 54 | 17 | 21 | 40 | 14 | 22 | 22 | 27 | 27 | 24 | 56 | 2 | 26 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 7 | WSW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | SW 7 | SW 8 | SW 8 | SW 8 |
| kJ | — | — | — | — | — | — | — | 55 | 128 | 277 | 281 | 238 | 274 | 161 | 187 | 217 | 210 | 300 | 352 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1289 | 11 | 11 | 11 | 11 | 11 | 16 | 16 | 1863 | 16 | 1289 | 2064 | 230 | 230 | 230 | 1836 | 230 | 230 | 230 |
Best forecast wave conditions in Guam | |||||||||||||||||||
Best forecast wave conditions in Guam | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Right and Left Side surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest