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Surf Forecasts:
Threes surfForecast / Guam / Guam
48hr Weather and Surf, issued 3 am Saturday 30 May 2026 ChSTForecast update in hr min s Forecast update imminent
Threes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Threes sea temperature is
28.8° C
(Which is normal for this time of year)How big are the waves at Threes today (30 May):
- Morning surf: Morning surf (30 May, local time) - 2.5ft (0.8m), 8s period with SW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 2.5ft (0.8m), 8s period with W swell.
- Evening surf: Evening surf (30 May, local time) - 2.5ft (0.7m), 9s period with W swell.
The current surf forecast for Threes at 7AM is: 0.8m 8s primary swell from a West-southwest direction (forecast issued at 03:00am May 30). An open ocean swell of 1.0m 10s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 2.5ft (0.8m) | 8s |
| Afternoon (30 May) | 2.5ft (0.8m) | 8s |
| Evening (30 May) | 2.5ft (0.7m) | 9s |
Table - waves today at Threes. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 28°C on Sat morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 9 | SW 8 | WSW 8 | SW 8 | W 8 | W 8 | W 9 | W 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | W 9 | W 9 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | |
211 | 162 | 94 | 78 | 88 | 92 | 76 | 73 | 69 | 78 | 80 | 80 | 78 | 80 | 108 | 143 | 133 | 158 | 154 | 151 | 146 | 125 | 122 | 94 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | |
High Tide | 6:00AM0.70m | 8:42PM0.68m | 6:28AM0.69m | 9:21PM0.69m | 6:56AM0.69m | 10:00PM0.70m | ||||||||||||||||||
Low Tide | 00:50AM0.45m | 1:21PM-0.06m | 1:32AM0.48m | 1:53PM-0.08m | 2:11AM0.50m | 2:26PM-0.09m | ||||||||||||||||||
 | |  |  | | |  | | | | | | | | | | | | | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:44 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
30 | 28 | 30 | 30 | 30 | 30 | 31 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 30 | 30 | |
Swell 1 Height (m) Direction Period (s) | WSW 9 | SW 8 | E 10 | SW 8 | W 8 | E 10 | E 10 | W 9 | SW 8 | E 10 | E 10 | SW 8 | SW 8 | SW 8 | W 9 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
 kJ | 211 | 162 | 196 | 78 | 88 | 242 | 196 | 73 | 66 | 194 | 194 | 80 | 78 | 67 | 108 | 143 | 133 | 158 | 154 | 151 | 146 | 125 | 122 | 94 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | WSW 8 | W 9 | SW 8 | W 8 | W 9 | SW 8 | W 8 | SW 8 | SW 8 | W 9 | W 9 | W 9 | SW 8 | SW 8 | WSW 8 | SW 8 | SW 8 | E 10 | E 9 | E 9 | E 9 | E 9 |
| kJ | 233 | 237 | 94 | 43 | 40 | 92 | 76 | 64 | 69 | 78 | 80 | 55 | 78 | 80 | 65 | 51 | 42 | 28 | 31 | 65 | 64 | 63 | 61 | 60 |
Swell 3 Height (m) Direction Period (s) | NNE 11 | NNE 11 | SW 8 | W 8 | NNE 11 | SW 8 | SW 8 | NNE 11 | NNE 11 | W 8 | W 8 | NNE 12 | NNE 12 | NNE 12 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | WSW 8 | WSW 8 | WSW 8 |
| kJ | 46 | 46 | 63 | 33 | 46 | 36 | 49 | 48 | 49 | 66 | 49 | 52 | 53 | 52 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 25 | 26 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 10 | E 10 | — | — | E 10 | E 10 | — | — | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 6 | E 6 | E 7 | E 6 | E 7 |
| kJ | — | — | — | 237 | 237 | — | — | 196 | 192 | — | — | 230 | 230 | 230 | 273 | 273 | 268 | 268 | 268 | 83 | 83 | 85 | 83 | 104 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 25 | 1810 | 0 | 1284 | 1270 | 1270 | 0 | 1284 | 1270 | 1270 | 0 | 0 | 9 | 1270 |
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
Best forecast wave conditions in Guam | ||||||||||||||||||||||||
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