Surf Forecasts:
Right and Left Side surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 13 Sep, 1AM (local time) - 3ft (0.9m), 13s period, ENE swell with glassy winds.
- Most powerful swell: Saturday 12 Sep, 4PM (local time) - 3ft (0.9m), 14s period, ENE swell with 308 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 1AM (local time) - 3ft (0.9m), 13s period with ENE 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 Sunday (Sep 13) at 1AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 1.1m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Right and Left Side in the next 16 days are 0.9m 14s and forecast to arrive on Saturday (Sep 12) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 10s period and expected on Sunday (Sep 06) at 4PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 13th Sep) | 3ft (0.9m) 13s |
| Best Surf | 1AM (Sun 13th Sep) | 3ft (0.9m) 13s |
| Most Powerful | 4PM (Sat 12th Sep) | 3ft (0.9m) 14s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Right then, Rusty here again. Same story, different numbers.
First week is a total bust. From Sunday the 6th through Saturday the 12th, every session is junk – onshore winds, choppy, nothing rideable. Swell runs around 3 to 4 feet, but the wind is a killer. Combined swell energy runs from 161 up to 550, but it’s all blown out. Don’t waste your time.
The good stuff finally shows up Sunday the 13th of September. Wind swings light offshore from the SSE, and the water goes glassy. Swell is 3 feet from the ENE, period at 13 seconds – that’s a quality groundswell. Combined energy is 478, plenty of push. This is your best stretch. Monday the 14th keeps it clean with 2.6 feet of ENE swell and a light cross-off wind. Tuesday the 15th is the real gem: 3.3 feet of ENE swell, 13-second period, and clean conditions all day. Combined energy 331, moderate, but the wind makes it shine. It’s a reef break, so the long-period swell will wrap in nicely, just know it’s inconsistent – you’ll wait for sets, but they’ll be worth it. Crowds can show up sometimes. Water temp is 85°, right about normal for the season.
After Tuesday, it fades. Wednesday the 16th is still okay with clean winds and 3-foot swell, but Thursday the 17th drops to 2.6 feet and keeps shrinking. From Friday the 18th onward, it’s weak – 2 feet or less, short period, combined energy down to 59 in some spots. Don’t bother.
So: ditch the first week. Your window is Sunday the 13th through Tuesday the 15th. Tuesday the 15th is the standout: clean, chest-high groundswell. Get out there.
Short Range ForecastLight rain (total 9mm), mostly falling on Sun morning. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 28°C on Wed morning, min 27°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 10 | W 9 | WNW 10 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | E 14 | E 14 | E 14 | E 14 | W 11 | ENE 14 | ENE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 267 | 207 | 235 | 169 | 154 | 162 | 154 | 188 | 217 | 231 | 241 | 154 | 158 | 154 | 144 | 132 | 184 | 198 | 242 | 308 | 295 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | on | cross-on | on | glassy |
High Tide | 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 | 8:02AM0.88m | 8:35PM0.90m | ||||||||
Low Tide | 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 | 2:22PM0.31m | 2:52AM0.33m | ||||||||
 | |  |  | |  |  | | | | |  | | | | | | |  | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — | — | 6:24 | — |
mm | 3 | 3 | 1 | — | — | 1 | — | — | 1 | — | — | — | — | — | 1 | 1 | — | 2 | 1 | — | — |
Temp °C | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 27 |
Feels °C | 32 | 31 | 31 | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 28 | 31 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | WNW 10 | WNW 9 | W 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | W 8 | W 11 | W 11 | W 10 |
| kJ | 267 | 207 | 235 | 169 | 154 | 162 | 154 | 188 | 217 | 231 | 241 | 154 | 158 | 154 | 115 | 107 | 131 | 127 | 242 | 242 | 239 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | ENE 9 | NNE 13 | NNE 12 | NNE 12 | ENE 9 | ENE 9 | ENE 8 | E 14 | E 14 | E 14 | E 14 | E 14 | ENE 14 | ENE 13 |
| kJ | 46 | 33 | 32 | 30 | 22 | 21 | 22 | 28 | 57 | 49 | 47 | 26 | 43 | 40 | 144 | 132 | 184 | 198 | 192 | 308 | 295 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 11 | NNE 14 | ENE 9 | ENE 9 | ENE 9 | ENE 15 | E 14 | E 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | SE 9 | NNE 10 |
| kJ | 15 | 15 | 14 | 14 | 7 | 16 | 22 | 36 | 28 | 28 | 28 | 72 | 98 | 94 | 38 | 39 | 39 | 39 | 42 | 13 | 18 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNE 2 | — | NE 3 | — | NW 4 | NW 4 | — | — | — | — | NNW 3 | N 3 | — | — | — | — |
| kJ | — | — | — | — | — | 1 | — | 1 | — | 8 | 7 | — | — | — | — | 3 | 6 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 1958 | 2064 | 1958 | 11 | 2064 | 1958 | 1958 | 1835 | 1835 | 1904 | 1289 | 1303 | 1289 | 11 | 1289 | 1289 | 0 |
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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