Surf Forecasts:
Right and Left Side surf forecast from 30 Aug 2026:
- Most powerful swell: Friday 4 Sep, 1PM (local time) - 10ft (3.0m), 11s period, W swell with 2,135 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 Friday (Sep 04) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 12s period and expected on Thursday (Sep 03) at 1PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Fri 4th Sep) | 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 have a look at what’s coming up for Right and Left Side.
Honestly, I’m looking at a pretty grim run for the next 16 days. The first real chance of anything surfable doesn’t show up until Tuesday, 1st September, and even then it’s a real struggle. We’re not talking about a classic session here. The water’s sitting at 86° which is about normal for the time of year, so no surprises there.
The first whisper of something worth paddling out for is on Tuesday morning, 1st September. We’ve got a 6ft west swell, but it’s got a short 8-second period and onshore northwesterly wind at 18 mph. The energy is moderate (723), but the conditions are described as marginal. It’s not great, but it’s the start of the window.
The best on offer in this whole period is hands down Wednesday morning, 2nd September. The swell bumps up to 8ft from the west, with a longer 10-second period. The combined energy jumps to 1338, which is strong. The wind is light from the west-northwest at 6 mph, coming straight onshore. That’s a lot of water, pushing 8ft, which is getting into the “experts only” territory. It’s a reef break that’s inconsistent, so the sets will be few and far between. The direction is west, and this spot really wants north swell to work best, so it’s not going to be perfect. Still, with that much energy and a light breeze, if you’re a solid surfer, this is the moment to be in the water.
After that, it gets messy. The swell drops and the wind goes cross-shore or cross-onshore, turning everything into a washing machine. Friday afternoon, 4th September, shows a 10ft west swell with a good 11-second period, but the wind is a fresh 18 mph cross-shore from the southwest. That’s a lumpy, choppy mess. The energy is massive (1970), but it’s not for paddling. For the kite surfers, this might be a fun window, but for a paddle surfer, it’s a no-go.
The rest of the forecast is a long, brutal stretch of poor conditions. Cross-shore winds, strong breezes, and messy chop dominate. There’s a gap of several days from the 5th all the way through to the 14th of September where the recommendations are non-existent or very marginal. The wind stays strong and cross-shore, and the swell is either too big with bad wind or too small. It’s a tough run.
So, to sum it up: the standout is Wednesday morning, 2nd September. It’s the best wave energy with the lightest wind. Don’t expect a clean, long ride; it’s a reef that’s inconsistent, and it’s not the best direction for the break, but it’s the only real window of quality. For the rest, it’s a write-off unless you’ve got a kite.
Rusty.
Short Range ForecastHeavy rain (total 44mm), heaviest during Sun night. Warm (max 29°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 56mm), heaviest during Wed afternoon. Warm (max 29°C on Fri morning, min 26°C on Wed night). Winds increasing (light winds from the WNW on Wed morning, strong winds from the WSW by Wed night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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 8 | W 8 | W 7 | NW 9 | WNW 10 | W 9 | W 8 | W 9 | W 10 | W 10 | NE 9 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | W 11 | W 11 | W 12 | W 12 | W 12 |
Wave Graph | |||||||||||||||||||||
114 | 120 | 159 | 115 | 179 | 264 | 424 | 404 | 780 | 1299 | 22 | 25 | 24 | 23 | 13 | 12 | 1962 | 1862 | 1893 | 1839 | 1535 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | on | on | on | on | cross-on | on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 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 | 2:25PM0.75m | 11:51PM0.87m | 4:09PM0.77m | 00:49AM0.85m | ||||||||
Low Tide | 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 | 6:50AM0.18m | 6:28PM0.68m | 7:58AM0.15m | 7:54PM0.72m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | |
— | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | 6 | 13 | 2 | 10 | 7 | — | 1 | 5 | 6 | 13 | 13 | 10 | 6 | 5 | 3 | — | — | — | — | — |
Temp °C | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 26 | 27 | 27 | 28 | 29 | 29 | 29 | 29 | 29 | 28 |
Feels °C | 31 | 29 | 28 | 30 | 30 | 31 | 30 | 30 | 30 | 32 | 30 | 27 | 24 | 25 | 26 | 28 | 29 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | ENE 10 | WNW 9 | NW 9 | WNW 10 | W 9 | WNW 9 | W 9 | SSW 7 | SSW 7 | NE 9 | NE 10 | NE 10 | NE 9 | NE 9 | NE 9 | W 11 | W 11 | W 12 | W 12 | W 12 |
27 | 43 | 32 | 115 | 179 | 264 | 243 | 404 | 47 | 143 | 22 | 25 | 24 | 23 | 13 | 12 | 1962 | 1862 | 1893 | 1839 | 1535 | |
Swell 2 Height (m) Direction Period (s) | ENE 11 | WNW 8 | ENE 10 | WSW 7 | WSW 8 | ENE 10 | SW 8 | NE 10 | NE 10 | NE 9 | E 10 | E 18 | ESE 10 | E 16 | E 16 | E 15 | ESE 11 | SE 11 | ESE 10 | SE 10 | SE 10 |
44 | 26 | 40 | 54 | 39 | 42 | 129 | 48 | 47 | 31 | 8 | 6 | 9 | 5 | 5 | 4 | 12 | 18 | 39 | 48 | 47 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | NE 10 | NE 10 | SE 9 | NE 11 | SE 9 | S 8 | E 10 | SE 10 | E 18 | NE 13 | — | E 16 | ESE 12 | ENE 9 | NNE 9 | SSE 8 | NNE 9 | NNE 9 |
14 | 14 | 14 | 27 | 28 | 14 | 56 | 13 | 12 | 8 | 4 | 6 | 7 | — | 5 | 14 | 8 | 8 | 6 | 8 | 8 | |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | W 7 | — | — | — | W 8 | — | W 10 | W 10 | WSW 10 | WSW 10 | WSW 11 | WSW 12 | WSW 12 | WSW 11 | SSW 8 | S 7 | S 6 | S 6 | — |
114 | 120 | 159 | — | — | — | 424 | — | 780 | 1299 | 2201 | 3446 | 4097 | 7352 | 6110 | 3675 | 427 | 100 | 92 | 71 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1835 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 16 | 2068 | 1874 | 2069 | 1908 | 2065 | 1907 | 1904 | 1835 | 1906 | 1289 |
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.











