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Surf Forecasts:
Umatac surfForecast / Guam / Guam
48hr Weather and Surf, issued 9 am Friday 06 Mar 2026 ChSTForecast update in hr min s Forecast update imminent
Umatac surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Umatac sea temperature is
28.3° C
(Which is slightly warmer than usual)How big are the waves at Umatac today?
The current surf forecast for Umatac at 5PM is: 1.0m 14s primary swell from a North-northeast direction and 0.5m 12s secondary swell from a Northwest direction (forecast issued at 09:00am March 06). An open ocean swell of 2.1m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Mar) | 3.5ft (1.1m) | 14s |
| Afternoon (06 Mar) | 3.5ft (1.1m) | 14s |
| Evening (06 Mar) | 3.5ft (1.0m) | 13s |
Table - waves today at Umatac. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 06 | Saturday 07 | Sunday 08 | Mon 09 | |||||||||||||||||||||
| 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 9 | 9 | 12 | 12 | 10 | 11 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 504 | 433 | 446 | 446 | 347 | 336 | 277 | 273 | 195 | 243 | 288 | 298 | 390 | 302 | 351 | 582 | 984 | 812 | 906 | 820 | 673 | 1467 | 1465 | 423 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | cross- off | glass | glass | glass | glass | cross- off | glass | glass | cross- off | cross- off | cross |
High Tide / height (m) | 9:30AM 0.73 | 9:58PM 0.63 | 9:49AM 0.72 | 10:50PM 0.60 | 10:10AM 0.71 | 11:47PM 0.58 | ||||||||||||||||||
Low Tide / height (m) | 3:52PM 0.14 | 3:42AM 0.23 | 4:28PM 0.11 | 4:12AM 0.31 | 5:07PM 0.09 | |||||||||||||||||||
Friday 06 | Saturday 07 | Sunday 08 | Mon 09 | |||||||||||||||||||||
| Sunrise | 6:35 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - |
 |  | | |  |  | | | |  | | | |  | | |  | | | | | | | | |
Rain (mm) | - | 1 | 1 | 1 | - | 1 | 2 | 13 | 11 | 6 | 4 | 9 | 16 | 8 | 5 | 5 | 3 | 1 | 2 | 4 | 2 | 1 | 3 | 5 |
| Temp. °C | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Feels °C (?) | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 27 | 27 | 25 | 26 | 28 | 29 | 30 | 30 | 29 | 30 | 29 | 30 | 31 | 29 | 28 | 26 |
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Umatac 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.
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