Umatac Surf Forecast and Surf Reports

(Guam)

Forecast
- Hourly Forecast
- 12 Day Forecast
Maps
Live
Weather State
Spot Information

Photo by: Chris Sucameli

Umatac Surf Guide

Umatac in - is an exposed reef break that only works once in a while. Winter is the optimum time of year for surfing here. Offshore winds are from the east southeast. Windswells are much more common than groundswells and the best wave direction is from the northwest. There is a left hand reef break. Best around high tide. Even when there are waves, it's not likley to be crowded. Beware of rocks,shallow reef,.

Umatac Spot Info

Type:	Rating:
Reef	2
Reliability:	Todays Sea Temp*:
inconsistent	83°F*ocean temperature recorded from satellite

Surfing Umatac:

The best conditions reported for surf at Umatac occur when a Northwest swell combines with an offshore wind direction from the East-southeast.

Surf Forecasts:

Hourly Forecast

12 Day Forecast

What's the best time of year to surf Umatac (for consistent clean waves)?

septemberBest Season: autumn

The best time of year for surfing Umatac with consistent clean waves (rideable swell with light / offshore winds) is during Autumn and most often the month of September. Clean surfable waves are typically found 29% of the time in September while 18% of the time it tends to be blown out. For the remaining 53% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

29%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

18%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

53%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Umatac Location Map

Interactive Umatac surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Umatac is Guam International (Agana) Airport (GUM) in Mariana Islands, which is 26 km (16 miles) away (directly). The second nearest airport to Umatac is Andersen Afb Airport (UAM), also in Mariana Islands, 44 km (27 miles) away.

Map Icons:
Break
Live Wave Height (ft)
Live Wind Speed (mph)
Surf Rating (10 Max)
Ocean Swells (ft)
Wind Speed (mph)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Umatac Surf Forecasts:

Hourly Forecast

12 Day Forecast

Todays Surf Summary
Wednesday, 26 March 2025, 20:07 Local Time

m, °C	Wed		Thu
ft, °F	7PM	10PM	1AM	4AM
Wave (ft)	NNE	NNE	NNE	NNE
Period (s)	11	11	11	11
Wind (mph)
Wind State	cross- off	cross- off	cross- off	cross- off

What does Umatac look like?

Latest photos from Umatac. Upload your own or view all photos on the gallery page.

Credit: Chris Sucameli Credit: Chris Sucameli

Tides at Umatac

Current tide and informaton

For Guam, Marianas, 4 miles from Umatac.

Next High Water: 06:38am | 2ft

Next Low Water: 11:35pm | 0ft

NEXT	IS AT (local time)	remaining
high tide
low tide

Umatac Sea Temperature

Sunny with very warm air temperatures, feeling like 27.0 °C once we account for any wind. Sea temperatures (28.3 °C) very warm too. Staying comfortable in the water at Umatac won't be a problem, but wear at least a rash-vest to keep the UV off.

Today, many surfers would wear a rashvest wetsuit.

Current Temp*: 83°F*ocean temperature recorded from satellite