
Surf Forecasts:
Right and Left Side surf forecast from 5 Sep 2026:
- Best quality surf: Friday 11 Sep, 1PM (local time) - 2ft (0.6m), 13s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 4AM (local time) - 4ft (1.2m), 12s period, WNW swell with 399 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 1PM (local time) - 2ft (0.6m), 13s period with E 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 Friday (Sep 11) at 1PM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.7m and 8s. 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 1.2m 12s and forecast to arrive on Wednesday (Sep 09) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 10s period and expected on Saturday (Sep 05) at 4PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Fri 11th Sep) | 2ft (0.6m) 13s |
| Best Surf | 1PM (Fri 11th Sep) | 2ft (0.6m) 13s |
| Most Powerful | 4AM (Wed 9th Sep) | 4ft (1.2m) 12s |
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 coming down the pipe for the next couple of weeks.
Right off the bat, I gotta be honest with you – the first week or so is looking pretty grim. We’ve got a stretch from Saturday the 5th right through to the end of the following week where the conditions are just messy. There’s wave energy, for sure – moderate, hitting around the 200s to 400s in some spots – but it's arriving with all the wrong company. The wind is mostly cross or cross-onshore, and in the afternoons it's just choppy and lumpy. You’d be fighting a losing battle. Not worth the paddle.
The only real standout in this whole two-week window is Right and Left Side. It’s an exposed reef break, and while it’s usually pretty inconsistent, we’ve got a little window of something good. Starting Saturday the 12th, we get a lovely clean-up. That morning we've got glassy conditions and the wind is light cross-offshore from the ESE. The swell runs about 3 ft with a long 14-second period from the ENE. That’s some clean, ground-swell energy – it’ll be a slower, more powerful wave, very suited to this kind of reef. By the afternoon the wind goes straight offshore from the ESE, still light, and the wave quality holds. The wave energy is strong (380 to 360 in the charts), so there's solid push behind it. The swell direction syncs with the optimum N direction about as well as you can hope for here. It’s a small, clean wave. Not huge, not for the big-wave crowd, but for a picky reef that rarely shows its face, this is the moment.
This good spell stretches into Sunday the 13th and Monday the 14th with similar offshore breezes from the SE, and swell holding at 3 ft. The period dips just a little, but the quality stays high. The Tuesday the 15th continues the trend with nice clean morning conditions and light winds. There is a possible crowd factor – this spot can get busy sometimes – and with conditions like this, you can bet a few locals will be stoked.
After that, the surf fades. By Wednesday the 16th we get some glassy afternoon waves, but the size drops off, and by the end of the week we’re down to small, weak 2-2 ft and next to no energy. The good days are that weekend right in the middle – Saturday the 12th through Tuesday the 15th. That's your window.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Sun afternoon. Warm (max 29°C on Sat morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Thu afternoon. Warm (max 28°C on Tue morning, min 27°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 | W 10 | W 9 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 11 | NW 10 | WNW 9 | WNW 9 | WNW 9 | E 14 | E 13 | E 13 | E 14 |
Wave Graph | |||||||||||||||||||||
311 | 263 | 205 | 267 | 207 | 235 | 216 | 166 | 245 | 201 | 193 | 197 | 389 | 286 | 176 | 124 | 108 | 144 | 126 | 173 | 200 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-off |
High Tide | 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 | 6:01AM0.87m | 7:46PM0.90m | 7:04AM0.88m | 8:11PM0.90m | ||||||||
Low Tide | 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 | 12:58PM0.17m | 1:31AM0.48m | 1:42PM0.23m | 2:12AM0.40m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | |
mm | — | — | 3 | 4 | 3 | — | — | — | — | — | — | — | — | — | 2 | — | 3 | 2 | 1 | 2 | 2 |
Temp °C | 29 | 29 | 28 | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 28 | 27 |
Feels °C | 31 | 32 | 33 | 31 | 30 | 28 | 29 | 29 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 31 | 31 | 30 | 32 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 10 | W 9 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 11 | NW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | E 14 |
311 | 263 | 205 | 267 | 207 | 235 | 216 | 166 | 245 | 201 | 193 | 197 | 389 | 286 | 176 | 124 | 108 | 99 | 68 | 62 | 200 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | ENE 9 | NW 13 | NNE 12 | NNE 12 | ENE 9 | E 14 | ENE 9 | E 14 | E 13 | E 13 | WNW 8 |
25 | 65 | 61 | 46 | 33 | 32 | 30 | 22 | 22 | 22 | 33 | 78 | 49 | 47 | 27 | 98 | 49 | 144 | 126 | 173 | 62 | |
Swell 3 Height (m) Direction Period (s) | SE 8 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | ENE 11 | SE 11 | NNE 13 | ENE 9 | ENE 9 | ENE 15 | ENE 9 | E 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
17 | 16 | 14 | 15 | 15 | 15 | 14 | 7 | 16 | 23 | 29 | 57 | 28 | 27 | 72 | 44 | 94 | 40 | 38 | 39 | 39 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 3 | — | — | NNE 2 | NE 3 | NNE 2 | NNE 2 | NNE 3 | N 3 | N 4 | NNE 4 | — | — | — | — | — | — |
— | — | — | — | 3 | — | — | 1 | 1 | 1 | 1 | 1 | 5 | 6 | 15 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 1289 | 1289 | 1958 | 16 | 2055 | 2055 | 2064 | 2064 | 1958 | 1958 | 1835 | 1908 | 11 | 19 | 19 | 1 |
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.










