Surf Forecasts:
Right and Left Side surf forecast from 27 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 4AM (local time) - 7ft (2.1m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 4AM (local time) - 8ft (2.5m), 11s period, W swell with 1,701 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 4AM (local time) - 7ft (2.1m), 10s period with W 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 Tuesday (Sep 01) at 4AM. The primary swell is predicted to be 2.1m and 10s period with a secondary swell of 0.4m and 10s. 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 2.5m 11s 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 3.0m 8s period and expected on Wednesday (Sep 02) at 7PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 1st Sep) | 7ft (2.1m) 10s |
| Best Surf | 4AM (Tue 1st Sep) | 7ft (2.1m) 10s |
| Most Powerful | 4AM (Fri 4th Sep) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu at Right and Left Side (reef).
Right off the bat, things are looking pretty grim for a while. The next week or so is a write-off. We've got a solid run of poor surf, with onshore gunk and lumpy conditions making it a no-go. The water’s warm though, sittin' at 85°, about what you'd expect for the time of year.
The first faint glimmer of hope shows up around Tuesday the 1st of September. Swell is pushing 8ft from the west, but the wind is a messy cross-shore and the period is a bit short at 10 seconds. The combined energy is moderate to strong at 1055, but the quality just isn't there. We're in marginal territory. This pattern of moderate to strong west swell holds through the week, but the wind keeps it from coming together. It's a frustrating tease.
Now, I'm not one to get too excited about dates over a week away, but the real standout is shaping up for Tuesday the 8th of September. This is the one. The morning shows a 7ft west swell with a 10-second period and the wind will be light and cross-off, swinging from the SSW at only 6 mph. That is clean. The combined energy is strong at 851. For an inconsistent reef like this, it's a rare treat when the stars align. The afternoon holds too, with slightly smaller 6ft swell staying clean from the south. This is the pick of the entire forecast, but remember, the break is inconsistent, so grab your window when it shows.
After that, the swell holds a bit through Wednesday the 9th with clean conditions again, though a little smaller around 5ft to 5ft. Good fun, but not the standout Tuesday is. Then we slide back into onshore muck for the rest of the run.
So to sum it up: tough sledding for the next week. Don't bother. Mark your calendar for Tuesday the 8th of September. That’s the window for a clean, solid west swell at Right and Left Side. Be patient, but be ready.
Rusty.
Short Range ForecastHeavy rain (total 59mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Tue afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | ENE 11 | WNW 10 | W 9 | W 10 | WNW 11 | W 11 | W 10 | W 10 | W 9 | W 11 | W 11 | W 8 | NE 10 | W 10 | W 10 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 93 | 99 | 127 | 90 | 82 | 78 | 205 | 288 | 361 | 778 | 831 | 884 | 1019 | 942 | 1197 | 1197 | 866 | 25 | 1433 | 1343 | 1520 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 8:41PM0.87m | 7:43AM0.85m | 9:00PM0.88m | 8:35AM0.85m | 9:20PM0.89m | 9:29AM0.83m | 9:42PM0.89m | 10:27AM0.81m | 10:06PM0.89m | 11:32AM0.79m | 10:34PM0.89m | 12:49PM0.76m | 11:08PM0.88m | ||||||||
Low Tide | 1:49PM0.19m | 2:17AM0.52m | 2:24PM0.24m | 2:55AM0.45m | 2:58PM0.30m | 3:34AM0.38m | 3:33PM0.38m | 4:15AM0.31m | 4:10PM0.46m | 5:00AM0.25m | 4:48PM0.54m | 5:51AM0.21m | 5:32PM0.62m | ||||||||
 |  |  | | |  | | |  | | | |  | | | |  |  | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — |
mm | 9 | 1 | 5 | 2 | 1 | 9 | 5 | 11 | 16 | 2 | 1 | 6 | — | 6 | 4 | 4 | — | — | — | 2 | 2 |
Temp °C | 28 | 27 | 28 | 29 | 29 | 28 | 26 | 26 | 26 | 26 | 27 | 27 | 29 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 30 | 28 | 29 | 30 | 30 | 31 | 28 | 27 | 27 | 25 | 29 | 31 | 31 | 30 | 30 | 32 | 30 | 29 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | ENE 13 | WSW 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | WNW 10 | W 9 | W 10 | WNW 11 | NE 11 | NE 11 | NE 10 | ENE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 | W 11 |
| kJ | 93 | 66 | 47 | 82 | 79 | 63 | 205 | 288 | 361 | 778 | 29 | 29 | 27 | 38 | 50 | 47 | 35 | 25 | 15 | 13 | 1520 |
Swell 2 Height (m) Direction Period (s) | NW 9 | ENE 12 | SSW 7 | ENE 12 | ENE 11 | WNW 9 | SW 8 | ENE 11 | ENE 10 | NE 10 | SE 10 | SE 9 | SE 9 | SE 9 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | S 6 |
| kJ | 31 | 99 | 41 | 90 | 82 | 46 | 62 | 44 | 40 | 27 | 23 | 14 | 13 | 13 | 8 | 8 | 8 | 8 | 9 | 9 | 28 |
Swell 3 Height (m) Direction Period (s) | NE 7 | NW 9 | ENE 12 | SE 10 | SE 10 | ENE 11 | NE 11 | SE 9 | SE 9 | SE 10 | E 12 | S 10 | E 11 | E 11 | S 8 | S 8 | S 8 | N 8 | E 10 | E 9 | SE 9 |
| kJ | 14 | 30 | 127 | 14 | 15 | 78 | 55 | 14 | 14 | 24 | 3 | 8 | 9 | 9 | 5 | 5 | 5 | 1 | 7 | 7 | 13 |
Wind waves Height (m) Direction Period (s) | WSW 7 | — | — | — | — | — | — | WNW 3 | NW 3 | — | W 11 | W 10 | W 10 | W 9 | W 11 | W 11 | W 8 | WSW 11 | W 10 | W 10 | — |
| kJ | 61 | — | — | — | — | — | — | 4 | 5 | — | 831 | 884 | 1019 | 942 | 1197 | 1197 | 866 | 1916 | 1433 | 1343 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 11 | 11 | 11 | 1835 | 1835 | 11 | 11 | 11 | 1835 | 11 | 19 | 2426 | 2068 | 2064 | 11 | 2055 | 2064 | 1372 | 1289 | 2068 |
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.
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