Surf Forecasts:
Right and Left Side surf forecast from 25 Aug 2026:
- Best quality surf: Thursday 27 Aug, 10PM (local time) - 1.5ft (0.5m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 1AM (local time) - 8ft (2.5m), 13s period, W swell with 2,359 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 10PM (local time) - 1.5ft (0.5m), 11s 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 Thursday (Aug 27) at 10PM. The primary swell is predicted to be 0.5m and 11s 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 2.5m 13s and forecast to arrive on Tuesday (Sep 01) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Friday (Aug 28) at 10AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 27th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 10PM (Thu 27th Aug) | 1.5ft (0.5m) 11s |
| Most Powerful | 1AM (Tue 1st Sep) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for Right and Left Side over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s cut through the chatter. Right and Left Side is a reef break, but the next 16 days are a rough patch. The first week and a half? Trash. Onshore winds and weak, messy surf. The water temp is about what you’d expect for this time of year.
The first real look comes on Sunday, 30th August. Swell hits 7ft from the west with a 12-second period, and the combined energy is strong (1333). That’s a lot of juice for a reef, so it’s for the experienced crew only. The wind is still cross-onshore, making it choppy, and the crowds are possible. It’s a marginal call, but the best of the first week.
Monday, 31st August, keeps the swell around 7ft from the west, energy still strong (1101). Still cross-onshore, so not clean. By Tuesday, 1st September, the swell drops to 6ft from the west, but the wind stays cross-onshore and it’s a poor surf call.
The standout is Saturday, 5th September. Swell jumps to 7ft from the west with a 12-second period and a combined energy of 1227 – that’s serious power. The wind is cross-shore, not directly onshore, which is a big win. It’s still marginal with lumpy cross-chop, but for this stretch, it’s the best you’ll get. The swell direction matches what this break likes, so the shape should be there.
After that, Monday, 7th September, has swell around 6ft, but the wind turns strong cross-onshore and messy. Wednesday, 9th September, brings a 10ft west swell, but it’s short-period (8 seconds) and with strong cross-shore wind, it’s a choppy mess – more for kite surfers than paddle surfers.
Honestly, this is a tough outlook. The break is more interesting for kite surfing than paddle surfing most days. If you’re set on it, the 5th September is your best shot, but don’t expect glassy perfection.
- Rusty
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 72mm), heaviest during Mon night. Warm (max 29°C on Sat morning, min 25°C on Sun afternoon). Winds increasing (light winds from the WNW on Sat night, fresh winds from the WNW by Mon night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 12 | NW 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 11 | W 9 | W 10 | W 10 | W 11 | W 11 | W 11 | W 13 | WNW 12 | WNW 11 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 81 | 74 | 69 | 68 | 69 | 145 | 131 | 98 | 91 | 84 | 593 | 771 | 1026 | 1190 | 1089 | 1168 | 2359 | 1437 | 1211 | 1167 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross |
High Tide | 8:01PM0.83m | 6:01AM0.83m | 8:21PM0.85m | 6:53AM0.85m | 8:41PM0.87m | 7:43AM0.85m | 9:00PM0.88m | 8:35AM0.85m | 9:20PM0.89m | 9:29AM0.83m | 9:42PM0.89m | 10:27AM0.81m | 10:06PM0.89m | ||||||||
Low Tide | 12:37PM0.16m | 1:03AM0.62m | 1:14PM0.17m | 1:40AM0.58m | 1:49PM0.19m | 2:17AM0.52m | 2:24PM0.24m | 2:55AM0.45m | 2:58PM0.30m | 3:34AM0.38m | 3:33PM0.38m | 4:15AM0.31m | 4:10PM0.46m | ||||||||
 | |  | | | | | |  | | |  | |  |  | | | | | |  | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:36 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — |
mm | 3 | 3 | 2 | 4 | 11 | 8 | 3 | 4 | 1 | 1 | 4 | 9 | 3 | 6 | 4 | 2 | 8 | 35 | 6 | 1 | — |
Temp °C | 29 | 28 | 27 | 28 | 28 | 26 | 27 | 26 | 27 | 29 | 28 | 27 | 28 | 25 | 27 | 27 | 27 | 27 | 28 | 28 | 28 |
Feels °C | 32 | 31 | 30 | 29 | 30 | 29 | 27 | 26 | 30 | 31 | 30 | 30 | 30 | 28 | 31 | 27 | 26 | 27 | 29 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | WSW 8 | WSW 7 | WSW 7 | SW 7 | ENE 11 | ENE 13 | ENE 12 | WSW 7 | WSW 8 | W 9 | W 9 | ENE 11 | NE 11 | W 11 | W 11 | W 11 | W 13 | WNW 12 | WNW 11 | NE 10 |
| kJ | 165 | 161 | 94 | 131 | 106 | 64 | 145 | 131 | 193 | 215 | 412 | 481 | 45 | 29 | 1190 | 1089 | 1168 | 2359 | 1437 | 1211 | 24 |
Swell 2 Height (m) Direction Period (s) | ENE 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | NW 10 | SE 9 | NW 9 | ENE 12 | ENE 12 | ENE 11 | NE 11 | SE 9 | SE 9 | NE 10 | NE 10 | SE 9 | NE 11 | NE 10 | NE 10 | SE 9 |
| kJ | 82 | 81 | 74 | 69 | 68 | 33 | 13 | 22 | 98 | 91 | 84 | 57 | 14 | 14 | 26 | 26 | 23 | 29 | 26 | 25 | 12 |
Swell 3 Height (m) Direction Period (s) | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | ENE 13 | N 7 | SE 9 | NW 9 | SSE 6 | SE 10 | SE 10 | S 9 | S 9 | SE 9 | SE 9 | NE 11 | SE 9 | SE 9 | SE 9 | E 10 |
| kJ | 67 | 75 | 36 | 35 | 35 | 69 | 1 | 13 | 13 | 7 | 15 | 15 | 2 | 1 | 23 | 23 | 29 | 22 | 13 | 13 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 7 | WSW 7 | — | WSW 7 | WSW 8 | WSW 8 | — | — | WSW 8 | W 9 | W 10 | W 10 | W 11 | — | — | — | — | NW 5 | WNW 11 |
| kJ | — | — | 164 | 175 | — | 99 | 674 | 375 | — | — | 101 | 593 | 771 | 1026 | 741 | — | — | — | — | 41 | 1167 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 11 | 16 | 11 | 16 | 230 | 11 | 1910 | 11 | 16 | 11 | 11 | 11 | 11 | 11 | 1835 | 2064 | 1289 | 1835 | 2064 | 19 |
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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