
Surf Forecasts:
Right and Left Side surf forecast from 31 Jul 2026:
- Most powerful swell: Thursday 6 Aug, 4PM (local time) - 10ft (3.0m), 11s period, W swell with 2,172 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 3.0m 11s and forecast to arrive on Thursday (Aug 06) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Tuesday (Aug 04) at 10AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 6th Aug) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s just rip the band-aid off right now: this is a grim 16-day outlook for Right and Left Side. We’re looking at a long stretch of poor surf and ugly conditions, so don’t get your hopes up.
Right and Left Side is a tricky reef setup, and it rarely breaks, so when it’s this messy, it’s just not worth paddling out. The first week is a write-off. From Friday 31 July right through to the end of the first week, we’ve got nothing but risk of thunderstorms, fresh to strong cross and cross-onshore winds, and lumpy, messy, choppy water. The swell is there, but it’s totally blown out. We’re talking moderate to strong combined wave energy (730 to 1537) but with poor surf quality every single session. The water temperature is around 86°F, which is about average for this time of year, so at least you won’t freeze.
The second week doesn’t get much better. Around Tuesday 4 August, the swell bumps up to 5ft to 6ft from the NNE and N, but the wind stays cross and messy, with strong breeze strength. By Wednesday 6 August afternoon, we see a 10ft west swell with a short period of 11 seconds – that’s a lot of water moving, but the wind is still fresh cross-shore and lumpy, so it’s blown-out junk. The combined energy hits 3267, but the commentary says “poor surf conditions” – no good.
The standout period, if you can call it that, is around Monday 10 August and Tuesday 11 August. The swell is huge – 16ft from the west, with a 12-second period, and combined energy in the 6700 to 7900 range. That’s heavy, powerful groundswell. But the wind is still strong cross-onshore or cross, making it messy and dangerous. This is only for experts, and honestly, it looks more like a kite-surfing day than a paddle-surfing day. The water temperature is not given for those days, but given the run-up, it’s likely still warm.
From Wednesday 12 August afternoon onward, the swell drops off a cliff – down to 1ft, then 1.0ft, 0.7ft, and eventually 0.3ft. Combined energy drops to double digits. The reef is barely breaking, and the wind stays strong and cross. Really, after the 12th, there’s nothing to chase.
So, bottom line: there’s no good surf on offer in this 16-day window. The break is inconsistent, and when it does have swell, the wind ruins it. The big west swell around the 10th and 11th is the only thing that gets the heart pumping, but it’s a mess. Don’t bother packing the board – go find something else to do.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 28°C on Fri afternoon). Winds increasing (light winds from the W on Fri night, strong winds from the W by Sun afternoon). | Days 4-6 Weather SummaryHeavy rain (total 42mm), heaviest during Tue afternoon. Warm (max 29°C on Mon morning, min 27°C on Tue morning). Mainly strong winds. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 8 | ENE 18 | E 15 | E 14 | ENE 14 | ENE 16 | ENE 14 | ENE 15 | ENE 14 | NE 15 | NE 15 | NNE 15 | NNE 15 | N 15 | N 15 | NNW 14 | NNW 14 | NNW 14 | NNW 14 | W 11 | NW 14 |
Wave Graph | |||||||||||||||||||||
22 | 102 | 447 | 713 | 704 | 894 | 778 | 857 | 785 | 903 | 686 | 829 | 1045 | 1241 | 1676 | 1344 | 1517 | 1435 | 1227 | 2172 | 1049 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 10:03PM0.88m | 8:26AM0.83m | 10:24PM0.89m | 9:17AM0.81m | 10:44PM0.89m | 10:13AM0.78m | 11:06PM0.90m | 11:17AM0.74m | 11:30PM0.90m | 12:35PM0.71m | 11:59PM0.89m | 2:12PM0.71m | 00:35AM0.89m | ||||||||
Low Tide | 2:52PM0.14m | 3:26AM0.59m | 3:25PM0.19m | 4:08AM0.54m | 3:58PM0.26m | 4:51AM0.48m | 4:31PM0.34m | 5:37AM0.41m | 5:06PM0.43m | 6:27AM0.34m | 5:46PM0.52m | 7:23AM0.27m | 6:34PM0.61m | ||||||||
6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:46 | — | |
mm | 2 | 4 | 6 | 5 | 4 | 8 | 4 | 4 | 5 | 3 | 6 | 12 | 8 | 10 | 3 | — | — | — | 1 | 2 | 18 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 |
Feels °C | 32 | 31 | 31 | 30 | 30 | 30 | 27 | 26 | 27 | 28 | 27 | 27 | 24 | 27 | 27 | 28 | 28 | 29 | 29 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 7 | ENE 8 | SW 7 | E 14 | ENE 14 | ENE 16 | ENE 14 | ENE 15 | ENE 14 | NE 15 | NE 15 | NNE 15 | NNE 15 | N 15 | N 15 | NNW 14 | NNW 14 | NNW 14 | NNW 14 | NNW 14 | NW 14 |
44 | 22 | 105 | 713 | 704 | 894 | 778 | 857 | 785 | 903 | 686 | 829 | 1045 | 1241 | 1676 | 1344 | 1517 | 1435 | 1227 | 1065 | 1049 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 18 | E 15 | NNE 9 | NNE 9 | SE 9 | SE 9 | NNE 9 | NE 20 | SSE 9 | ENE 14 | SSE 9 | SE 9 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | NE 11 | S 8 | ENE 11 |
22 | 102 | 447 | 17 | 17 | 12 | 12 | 7 | 143 | 8 | 20 | 17 | 20 | 17 | 17 | 16 | 14 | 27 | 33 | 100 | 11 | |
Swell 3 Height (m) Direction Period (s) | S 6 | ENE 11 | ENE 19 | SE 9 | SE 9 | NNE 9 | N 9 | SE 10 | SSE 10 | E 15 | SSE 9 | ENE 14 | S 9 | ENE 13 | SE 13 | E 19 | E 18 | E 18 | ENE 17 | NE 11 | ENE 10 |
10 | 25 | 119 | 13 | 12 | 16 | 6 | 4 | 9 | 17 | 8 | 19 | 16 | 35 | 7 | 7 | 6 | 6 | 27 | 30 | 10 | |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | — | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | W 11 | WSW 10 |
86 | 89 | — | 168 | 203 | 237 | 302 | 557 | 1236 | 932 | 933 | 1417 | 1623 | 2086 | 2111 | 2400 | 2621 | 2678 | 2669 | 2172 | 1780 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 230 | 16 | 11 | 11 | 11 | 11 | 1835 | 1908 | 1865 | 1835 | 1904 | 1835 | 1835 | 1835 | 1835 | 1835 | 1863 | 1835 | 1835 | 1863 | 1835 |
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.











