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Threes surfForecast / Guam / Guam
12 Day Weather and Surf, issued 9 pm Friday 23 May 2025 ChST
Best Forecast Surf Conditions for Threes this week:
The most powerful waves expected at Threes in the next 12 days are 0.2m 12s and forecast to arrive on Wednesday (May 28) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 9s period and expected on Saturday (May 24) at 10AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Wed 28th May) | 0.5ft (0.2m) 12s |
Table - best surf conditions forecast for Threes over the next 12 days.
Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | Monday 02 | Tuesday 03 | Wed 04 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 8 | 8 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 12 | 12 | 10 | 9 | 9 | 10 | 7 | 7 | 10 | 9 | 8 | 8 | 7 | 11 | 9 | 9 | 9 | 9 | 12 | 11 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 12 | 14 | 0 | 0 | 0 | 10 | 2 | 5 | 7 | 1 | 1 | 1 | 4 | 9 | 0 | 0 | 0 | 0 | 56 | 68 | 56 | 47 | 48 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | off | off | off | off | off | off | off | cross- off | off | cross- off | off | off | off | cross- off | off | off | cross- off | cross- off | cross- off | off | off | off | off | off | glass | glass | glass | glass | glass | cross- off | cross- off | glass | off | cross- off |
High Tide / height (m) | 4:30AM 0.75 | 5:56PM 0.64 | 5:04AM 0.77 | 7:05PM 0.70 | 5:39AM 0.78 | 8:09PM 0.75 | 6:17AM 0.79 | 9:07PM 0.78 | 6:57AM 0.79 | 10:04PM 0.79 | 7:39AM 0.77 | 10:59PM 0.78 | 8:25AM 0.75 | 11:54PM 0.76 | 9:14AM 0.70 | 12:46AM 0.74 | 10:11AM 0.65 | 1:33AM 0.73 | 11:21AM 0.58 | 2:16AM 0.72 | 12:48PM 0.53 | 2:53AM 0.71 | 2:26PM 0.50 | |||||||||||||
Low Tide / height (m) | 10:12PM 0.25 | 11:22AM 0.05 | 11:12PM 0.33 | 12:08PM -0.07 | 12:10AM 0.40 | 12:54PM -0.17 | 1:06AM 0.46 | 1:40PM -0.23 | 2:01AM 0.51 | 2:28PM -0.26 | 2:54AM 0.54 | 3:17PM -0.25 | 3:50AM 0.55 | 4:07PM -0.21 | 4:50AM 0.55 | 4:58PM -0.14 | 5:57AM 0.52 | 5:49PM -0.06 | 7:11AM 0.48 | 6:41PM 0.03 | 8:22AM 0.41 | 7:34PM 0.12 | 9:24AM 0.33 | |||||||||||||
Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 01 | Monday 02 | Tuesday 03 | Wed 04 | |||||||||||||||||||||||||
| Sunrise | - | 5:54 | - | - | 5:54 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - |
| Sunset | - | - | 6:42 | - | - | 6:42 | - | - | 6:42 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | - | - | 6:44 | - | - | 6:44 | - | - | 6:44 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 |
 |  | | |  | | |  | | |  |  |  | | | | | | | | | | | |  | | |  | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 3 | 4 | 4 | 2 | 1 | 1 | - | 1 | 1 | - | 3 | - | - | - | - | - | 1 | - | - | 1 | - | - | - | - | - |
| Temp. °C | 28 | 29 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 |
| Feels °C (?) | 30 | 31 | 30 | 32 | 31 | 32 | 31 | 31 | 31 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 31 | 30 | 32 | 31 | 30 | 32 | 32 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 32 | 31 | 32 |
Short Range Forecast: Mostly dry. Warm (max 29°C on Sat morning, min 28°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 16mm), heaviest on Tue afternoon. Warm (max 29°C on Tue morning, min 27°C on Mon night). Wind will be generally light. | Days 6-9 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 29°C on Fri morning, min 28°C on Thu night). Wind will be generally light. | Long Range Forecast: Light rain (total 2mm), mostly falling on Sun night. Warm (max 29°C on Wed afternoon, min 27°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Surf Rating (10 Max)
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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 Threes 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 Threes Surf forecast
The above surf forecast table for Threes provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Threes can be found by selecting the local surf guide option on the grey menu. Our Threes 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 (Threes) 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 Threes 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.
Threes is 25 km (16 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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