Surf Forecasts:
Right and Left Side surf forecast from 20 Sep 2026:
- Best quality surf: Monday 21 Sep, 4AM (local time) - 3.5ft (1.0m), 10s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 27 Sep, 10PM (local time) - 3.5ft (1.0m), 11s period, WNW swell with 273 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 4AM (local time) - 3.5ft (1.0m), 10s period with NNW 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 Monday (Sep 21) at 4AM. The primary swell is predicted to be 1.0m and 10s period. 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 1.0m 11s and forecast to arrive on Sunday (Sep 27) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Tuesday (Sep 22) at 7PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 21st Sep) | 3.5ft (1.0m) 10s |
| Best Surf | 4AM (Mon 21st Sep) | 3.5ft (1.0m) 10s |
| Most Powerful | 10PM (Sun 27th Sep) | 3.5ft (1.0m) 11s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
Short Range ForecastHeavy rain (total 70mm), heaviest during Tue afternoon. Warm (max 29°C on Sun afternoon, min 25°C on Tue afternoon). Winds increasing (calm on Mon morning, strong winds from the SE by Tue morning). | Days 5-7 Weather SummaryHeavy rain (total 43mm), heaviest during Thu morning. Warm (max 29°C on Sat morning, min 26°C on Fri morning). Wind will be generally light. | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | ||||||||||||||
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) | NNW 10 | NNW 10 | NNW 10 | NE 12 | NNW 10 | NNW 10 | NNW 10 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 10 | NNW 9 | ENE 8 | ENE 8 | WNW 10 | WNW 9 | WNW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 218 | 140 | 160 | 142 | 145 | 135 | 135 | 196 | 230 | 226 | 211 | 135 | 88 | 56 | 34 | 27 | 28 | 37 | 47 | 139 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | glassy | glassy | on | glassy |
High Tide | 5:02PM0.75m | 00:58AM0.74m | 5:44PM0.77m | 2:29AM0.73m | 6:12PM0.80m | 3:53AM0.75m | 6:34PM0.82m | 5:02AM0.78m | 6:54PM0.84m | 6:02AM0.81m | 7:13PM0.86m | 6:58AM0.84m | 7:33PM0.88m | |||||||
Low Tide | 9:08PM0.70m | 9:29AM0.26m | 10:30PM0.68m | 10:26AM0.25m | 11:22PM0.64m | 11:14AM0.25m | 00:01AM0.59m | 11:57AM0.26m | 00:36AM0.52m | 12:37PM0.29m | 1:11AM0.44m | 1:17PM0.33m | 1:46AM0.35m | |||||||
 |  | | |  | | | | | | |  | | | |  | | | | | |
 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:14 | — |
mm | 10 | 6 | 1 | 1 | 7 | 6 | 21 | 15 | 3 | 1 | 8 | 9 | 2 | 13 | 8 | — | 2 | — | 4 | 3 |
Temp °C | 29 | 29 | 28 | 28 | 28 | 27 | 26 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 29 | 28 | 28 |
Feels °C | 34 | 34 | 32 | 32 | 27 | 25 | 25 | 27 | 29 | 28 | 30 | 30 | 30 | 29 | 30 | 32 | 31 | 33 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | SW 8 | SW 7 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 12 | NNW 12 | NNW 12 | SW 7 | SW 7 | NNW 11 | NNW 10 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WNW 9 | WNW 10 |
| kJ | 218 | 108 | 89 | 109 | 145 | 135 | 135 | 196 | 230 | 226 | 151 | 75 | 88 | 56 | 56 | 76 | 54 | 35 | 47 | 139 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | NNW 10 | NNW 10 | SW 7 | SSW 7 | NE 10 | SW 8 | NE 10 | NE 9 | NE 9 | NNW 12 | NNW 11 | NE 9 | SE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | WSW 7 | ENE 10 |
| kJ | 101 | 140 | 160 | 59 | 56 | 89 | 60 | 47 | 43 | 41 | 211 | 135 | 40 | 32 | 27 | 27 | 28 | 32 | 26 | 54 |
Swell 3 Height (m) Direction Period (s) | NE 11 | NE 10 | NE 10 | NE 12 | NE 11 | SW 7 | NE 10 | E 13 | SE 8 | SE 8 | NE 9 | NE 9 | SE 8 | ENE 9 | NNW 9 | NNW 9 | SE 9 | WNW 10 | ENE 9 | N 9 |
| kJ | 72 | 84 | 79 | 142 | 119 | 38 | 63 | 3 | 17 | 16 | 42 | 41 | 33 | 30 | 34 | 16 | 27 | 37 | 35 | 41 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 8 | SE 6 | SE 6 | S 8 | SSW 7 | SW 7 | — | S 5 | SW 7 | WSW 7 | — | — | — | — | — | — |
| kJ | — | — | — | — | 58 | 184 | 303 | 463 | 198 | 198 | — | 14 | 65 | 50 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 2064 | 6 | 0 | 0 | 1835 | 1289 | 1289 | 1835 | 230 | 230 | 230 | 230 | 11 | 11 | 11 | 11 | 0 | 16 | 0 |
Best forecast wave conditions in Guam | ||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Right and Left Side surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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