Surf Forecasts:
Right and Left Side surf forecast from 18 Jul 2026:
- Best quality surf: Monday 20 Jul, 1PM (local time) - 1.5ft (0.5m), 10s period, E swell with offshore winds.
- Most powerful swell: Thursday 23 Jul, 7PM (local time) - 5ft (1.6m), 7s period, ENE swell with 244 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 1PM (local time) - 1.5ft (0.5m), 10s period with E 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 (Jul 20) at 1PM. The primary swell is predicted to be 0.5m and 10s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Right and Left Side in the next 16 days are 1.6m 7s and forecast to arrive on Thursday (Jul 23) at 7PM. 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 8s period and expected on Friday (Jul 24) at 4AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 20th Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 1PM (Mon 20th Jul) | 1.5ft (0.5m) 10s |
| Most Powerful | 7PM (Thu 23rd Jul) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright, let’s talk in feet and miles per hour, because some of you still think in the old ways. Rusty here, looking at Right and Left Side, and I’m not gonna sugarcoat it—this is a rough opening.
From Saturday the 18th all the way through to the morning of Monday the 27th of July, you’re looking at a dead zone. Tiny surf, messy wind, and a whole lot of “poor surf conditions.” The water’s around 83°F, pretty normal for this time of year, but it doesn’t matter when there’s nothing to ride. Over a week of nothing.
The first hint of life comes Monday morning, the 27th of July. A 2ft NW swell, with a light offshore wind from the ESE. Clean, but weak—combined energy is only 88. You could get a wave, but it’s just barely surfable.
Tuesday the 28th of July is where it’s at. The morning brings a 4ft NW groundswell with a 12-second period—that’s long, proper energy. The combined energy hits 386, which is solid. Wind is light from the ENE, clean and cross-off. This is a reef break, so that long NW swell will groove in smooth. It’s an advanced spot, and it’s inconsistent, so expect some waiting between sets, but the quality will be there. Crowds can show up sometimes, so get on it early.
Wednesday the 29th of July is even better. Morning shows a 4ft NW swell, same 12-second period, and the energy is pumping at 736. Light cross-off wind keeps it clean. This is a top-tier session. The afternoon gets a little cross-shore, but still ridable.
After that, the swell fades through the 30th and 31st, dropping to 3ft to 2ft with more cross-onshore wind. Not terrible, but not the peak.
For beginners, this isn’t your window. Once the swell hits 4ft, it’s getting into the more experienced zone. Over 5ft is for experts, and we only see that briefly on the 23rd, but with terrible wind, so don’t bother.
Tough start, but the end of July has a couple of mornings that’ll make it worth the wait. Aim for Tuesday 28th and Wednesday 29th, early.
— Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Sat night. Warm (max 29°C on Sat afternoon, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 37mm), heaviest during Thu afternoon. Warm (max 28°C on Tue afternoon, min 26°C on Thu night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the SSW by Fri morning). | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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) | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 6 | ENE 9 | ENE 7 | ENE 7 | ENE 7 | ENE 9 | ENE 9 | N 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 42 | 41 | 41 | 41 | 42 | 46 | 44 | 42 | 28 | 27 | 27 | 113 | 47 | 16 | 198 | 223 | 77 | 16 | 8 | 1 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-off | off | off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:30PM0.93m | 10:51AM0.78m | 11:58PM0.92m | 12:04PM0.72m | 00:26AM0.90m | 1:30PM0.68m | 00:54AM0.88m | 3:12PM0.67m | 1:23AM0.85m | 5:00PM0.69m | 1:58AM0.83m | 6:20PM0.73m | 2:40AM0.82m | |||||||
Low Tide | 4:34PM0.19m | 5:36AM0.49m | 5:13PM0.31m | 6:32AM0.43m | 5:50PM0.42m | 7:27AM0.37m | 6:26PM0.53m | 8:22AM0.32m | 7:07PM0.61m | 9:16AM0.28m | 8:04PM0.67m | 10:07AM0.24m | 9:26PM0.70m | |||||||
 |  |  |  |  | | | | | | |  | | | | | | | | | |
 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:51 | — | — | 6:51 | — | — | 6:51 | — | — | 6:51 | — |
mm | 2 | 2 | — | — | — | — | 2 | 1 | — | — | 3 | 1 | 3 | 4 | 3 | 11 | 8 | 4 | 6 | 57 |
Temp °C | 29 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 28 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 28 | 27 | 26 |
Feels °C | 31 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 31 | 30 | 31 | 30 | 31 | 29 | 29 | 28 | 26 | 27 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | SE 10 | SE 10 | SE 9 | SW 7 | ENE 7 | SE 10 | SE 11 | ESE 10 |
| kJ | 62 | 41 | 30 | 23 | 29 | 69 | 69 | 44 | 33 | 33 | 32 | 25 | 61 | 60 | 53 | 23 | 77 | 48 | 31 | 60 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | ENE 9 | ENE 9 | SE 11 | SE 10 | SW 7 | SW 7 | SW 7 | SE 10 | N 5 | ENE 9 | ENE 9 | SE 14 |
| kJ | 42 | 41 | 41 | 41 | 42 | 46 | 44 | 42 | 28 | 27 | 58 | 64 | 23 | 26 | 25 | 32 | 35 | 16 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | S 6 | S 6 | S 5 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 10 | ENE 9 | SE 18 | ENE 9 | ENE 9 | S 8 | S 8 | SE 11 | SE 14 | SE 14 | N 8 |
| kJ | 5 | 12 | 11 | 9 | 17 | 15 | 21 | 21 | 21 | 34 | 27 | 49 | 16 | 16 | 11 | 11 | 40 | 33 | 31 | 1 |
Wind waves Height (m) Direction Period (s) | S 5 | — | — | — | — | — | — | — | — | NE 2 | NE 3 | ENE 9 | ENE 6 | NE 5 | ENE 7 | ENE 7 | SW 9 | SW 8 | SSW 9 | SSW 9 |
| kJ | 4 | — | — | — | — | — | — | — | — | 1 | 5 | 113 | 47 | 54 | 198 | 223 | 516 | 820 | 1168 | 1454 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 230 | 11 | 1 | 16 | 1 | 1 | 1 | 1 | 2074 | 2431 | 2253 | 2199 | 2253 | 1958 | 1874 | 2074 | 1884 | 1858 | 2074 | 2064 |
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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