TideAhead
GuamGNIS Populated PlaceTides: NOAA 1630000

Mepo Tides & Coastal Conditions

Weather, marine-model context, and astronomy use the official place coordinate. Tide predictions use the nearest official NOAA tide-prediction station within 30 miles.

Exactly Where This Tide Chart Comes From

These are official NOAA predictions for APRA HARBOR, GUAM (station 1630000), 6.1 miles from the official coordinate for Mepo. TideAhead does not claim this is a sensor reading or an interpolated prediction at the city coordinate. Place identity and coordinates come from the U.S. Geological Survey GNIS Populated Places.

All official layers availableUpdated 3:10 PM GMT+10

Current Conditions

Tides are NOAA predictions for APRA HARBOR, GUAM, 6.1 miles away; weather uses the place coordinate. NWS point and marine-grid forecasts can differ at exposed shorelines.

Estimated tide now
0.1ft
rising · Station 1630000
Next high tide
8:25 PM
Wed, Aug 122.6 ft
Next low tide
1:46 AM
Thu, Aug 131.5 ft
Current Weather
88°F

Mostly Clear

Observed

WSW 16 mph

Observed
Tide Forecast
NOAA APRA HARBOR, GUAM · Station 1630000 · MLLW datum · local time
Official source station 6.1 mi from the place coordinate · no city-coordinate tide interpolation
currentOfficial NOAA curve
-2 ft-0.5 ft1 ft2.5 ft4 ft2.6 ft1.5 ft2.8 ft-0.3 ft2.6 ft1.3 ft2.7 ft-0.0 ftWed, Aug 123:00 PMThu, Aug 133:00 AMThu, Aug 133:00 PMFri, Aug 143:00 AMFri, Aug 143:00 PM
Official NOAA predicted heights relative to MLLW. Times are shown in the place's local timezone.

Weather, Light & Marine

Conditions that affect shoreline access, small craft, fishing and surf.

Air

Temperature88°FObserved

Humidity70%Observed

Pressure1010 mbObserved

Wind

SustainedWSW 16 mphObserved

Gusts23 mphObserved

Rain chance15%Model

Marine

Wave height0.0 ftModel

DirectionCalm / No DirectionModel

Water87.3°FObservedNOAA Apra Harbor, Guam · 6.1 mi Away
Sun & Moon

Sunrise6:08 AM

Sunset6:44 PM

MoonWaning Crescent

Hourly Forecast
Model
National Weather Service point forecast when the live feed is available.
Local date & timeConditionsTempWindGustsRain
Wed, Aug 12, 20263:00 PMIsolated Rain Showers86°FWSW 15 mph23 mph15%
Wed, Aug 12, 20264:00 PMIsolated Rain Showers86°FWSW 15 mph23 mph15%
Wed, Aug 12, 20265:00 PMIsolated Rain Showers85°FWSW 15 mph20 mph15%
Wed, Aug 12, 20266:00 PMIsolated Rain Showers84°FWSW 15 mph18 mph9%
Wed, Aug 12, 20267:00 PMIsolated Rain Showers83°FWSW 15 mph16 mph9%
Wed, Aug 12, 20268:00 PMIsolated Rain Showers83°FWSW 15 mph15 mph9%
Wed, Aug 12, 20269:00 PMIsolated Rain Showers82°FWSW 10 mph14 mph9%
Wed, Aug 12, 202610:00 PMIsolated Rain Showers81°FWSW 10 mph14 mph9%
Wed, Aug 12, 202611:00 PMIsolated Rain Showers80°FWSW 10 mph14 mph9%
Thu, Aug 13, 202612:00 AMIsolated Rain Showers79°FWSW 10 mph14 mph9%
Thu, Aug 13, 20261:00 AMIsolated Rain Showers78°FWSW 10 mph14 mph9%
Thu, Aug 13, 20262:00 AMIsolated Rain Showers77°FWSW 10 mph14 mph9%

Fishing, Crabbing & Surfing Analysis

Transparent environmental scores based on tide, wind and marine conditions. These are not user reports, catch guarantees or substitutes for official closures and safety guidance.

72/100 · Good
Fishing
Environmental planning guidance, not a catch guarantee.

Best planning window

2 hours around the next tide change

  • Moderate wind16 mph sustained wind
  • Mostly dry15% precipitation chance
  • Moving waterA rising tide can improve nearshore feeding activity
69/100 · Good
Crabbing
Conditions are secondary to seasons, closures and safety.

Best planning window

Near slack water, if the marine area is open

  • Regulations requiredConfirm the marine area is open before setting gear
  • Moderate tidal exchange3.2 ft range in the next cycle
11/100 · Poor
Surfing
Offshore model guidance with nearshore uncertainty.

Best planning window

Compare swell direction, local wind and tide before leaving

  • Limited swell0.0 ft NWS forecast waves
  • Short period0s dominant period
  • Strong local wind16 mph may reduce surface quality
  • Nearshore uncertaintyOffshore model conditions are not the same as breaking-wave height at this beach
Guam Division of Aquatic and Wildlife Resources fishing rulesGuam · state or territoryNOAA Fisheries federal recreational fishing resourcesU.S. federal waters · federalNational Weather Service rip-current safetyUnited States · safety
Nearby NOAA Tide Stations
Official station locations from the national NOAA CO-OPS tide-prediction catalog.

Pago Bay, Guam

NOAA 1631428 · GU

7.9 mi

Tanapag Harbor, Saipan Island

NOAA 1633227 · GU

146.1 mi

Laysan Island

NOAA 1619645 · HI

2946.8 mi

MASSACRE BAY

NOAA 9460150 · AK

3144.8 mi

East Island, French Frigate Shoals

NOAA 1619222 · HI

3278.5 mi

Ogliuga Island (east coast)

NOAA 9461081 · AK

3334.3 mi

Sources And Confidence

NOAA CO-OPS tide predictions at APRA HARBOR, GUAMofficial-forecast

Fetched Wed, Aug 12 at 3:10 PM

National Weather Service observation and hourly forecastofficial-forecast

Fetched Wed, Aug 12 at 3:10 PM

National Weather Service coastal marine gridofficial-forecast

Fetched Wed, Aug 12 at 3:10 PM

NOAA CO-OPS water temperature at Apra Harbor, Guamobserved

Fetched Wed, Aug 12 at 3:10 PM

U.S. Naval Observatory astronomical applicationsofficial-calculation

Fetched Wed, Aug 12 at 3:10 PM

Not for navigation. Conditions can change faster than source update intervals. Always check local warnings, closures and on-site conditions.