Apra Harbor tides today
- Tide now 1.5 ft ↑ rising · high 10:30 am (2.3 ft)
- Best time to fish 2:40–3:50 pm average day · 6/10
- Beach day 3:00–5:00 pm Fair beach day · 6/10
- Waves · water 2.6 ft · 84 °F slight · 8.2 s from the northeast
- Wind · air 9 mph · 81 °F from the ENE, gusts 13 · light drizzle
- Surf today Flat Flat day · 1/10 · 7:00–11:00 am
- Sun 6:15 am–5:56 pm 11 h 41 min of daylight
- Moon 88% · 8:40 pm waning gibbous · rises at 8:40 pm
- Marine Weather Statement: short-term alert for storms, gusts or fog at sea. Until further notice. NWS Tiyan GU
Today in Apra Harbor there are high tides at 10:30 am (2.3 ft) and 8:38 pm (2.3 ft) and low tides at 3:18 am and 3:44 pm. Tide coefficient 85. Right now the tide is rising toward the high tide at 10:30 am. The sun rises at 6:15 am and sets at 5:56 pm: 11 h 41 min of daylight. The moon is 88% illuminated (waning gibbous) and rises at 8:40 pm. Major solunar periods run from 1:21 am to 3:21 am and from 1:53 pm to 3:53 pm. The next spring tides arrive from October 27 to 29. The sea is slight, with 2.6 ft waves. There's a gentle breeze from the east-northeast (9 mph). Light drizzle, 81 °F.
Fishing in Apra Harbor today
Best time to fish
Solunar activity today: medium- Low tide at 3:18 am
- Major period 1:21–3:21 am
- Steady pressure (29.88 inHg), almost no wind and some swell (2.6 ft waves) to stir the water
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 85 (average tides)
Your day at a glance
The best window, 2:20 am to 3:20 am, combines the 3:18 am low tide, a major period and some swell. Also worth a try from 2:40 pm to 3:50 pm, with the 3:44 pm low tide, a major period and some swell, though with moderate wind. Also good from 8:10 pm to 9:10 pm, with the 8:38 pm high tide, moonrise and some swell.
Species with the most records nearby: bluefin trevally, great barracuda, dogtooth tuna and giant trevally. What you can catch
Beach day in Apra Harbor
Is it a beach day?
2 good hours- Mostly sunny
- Feels like 91 °F: beach weather
- Calm for swimming: 3.1 ft waves
- UV 4 (moderate): SPF 30 sunscreen
- Water at 84 °F (very warm)
- Low tide at 3:44 pm: more sand
Today, hour by hour
- Swimming Calm · 3.1 ft
3.1 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 84 °F
Very warm: barely refreshing.
- Sun & sunscreen UV 9 · SPF 50
Max UV 9 (very high): SPF 50 sunscreen, reapplied every 2 hours. Seek shade 11:00 am–2:00 pm (very high UV).
- Wind 13 mph
Moderate offshore wind (13 mph). Skip the inflatables: offshore wind carries them out to sea.
- Tide & sand 3:44 pm
Low tide at 3:18 am and 3:44 pm: that's when there's the most sand. High tide at 10:30 am and 8:38 pm.
The best window, 3:00 pm to 5:00 pm, brings sunshine, beach weather, a calm sea, water at 84 °F and low tide at 3:44 pm, though with a chance of rain and moderate offshore wind.
We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days
Beaches near Apra Harbor
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Tipalao Beach 0.8 mi · SW
- Parking
- San Luis Beach 1.0 mi · N
- Dadi Beach 1.1 mi · S
- Parking
- Gab Gab Beach 1.2 mi · NW
- Rizal Beach 1.7 mi · S
- Togcha Beach 2.4 mi · S
- Parking
- Yellow Beach One 2.8 mi · S
- Restrooms
- Parking
- Salinas Beach 2.9 mi · S
- Restrooms
- Parking
Water quality: check the official beach advisories for Guam (Guam Environmental Protection Agency).
Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Apra Harbor
Webcams provided by windy.com — add a webcam
Tides in Apra Harbor
Today's high and low tides
- ▼ Low tide 3:18 am -0.7 ft
- ▲ Next high tide 10:30 am 2.3 ft · coef. 85
- ▼ Low tide 3:44 pm 1.5 ft
- ▲ High tide 8:38 pm 2.3 ft · coef. 82
↑ Rising The tide is rising. 2 h 40 min to high tide at 10:30 am.
Tide coefficient 85 for the 10:30 am high tide and 82 for the 8:38 pm high tide. Average coefficient. The water rises and falls 3.1 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
2026 extremes: the highest tide of the year is on July 15 (2.8 ft) and the lowest, on December 25 (-1.2 ft).
Mixed: two high and two low tides a day, but of quite different heights.
Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLLW
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 27 (coefficient 94, 2.8 ft range). The smallest, from October 18 to 19 (coefficient 37, 1.9 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:15 am · 5:56 pm | Low tide 3:18 am · -0.7 ft | High tide 10:30 am · 2.3 ft | Low tide 3:44 pm · 1.5 ft | High tide 8:38 pm · 2.3 ft | Coef. 85 | 88% | Major periods 1:21 am · 1:53 pm | Medium |
| Fri 30 | 6:15 am · 5:55 pm | Low tide 4:09 am · -0.7 ft | High tide 11:38 am · 2.2 ft | Low tide 4:43 pm · 1.6 ft | High tide 9:23 pm · 2.3 ft | Coef. 77 | 80% | Major periods 2:25 am · 2:58 pm | Medium |
| Sat 31 | 6:15 am · 5:55 pm | Low tide 5:06 am · -0.6 ft | High tide 12:54 pm · 2.2 ft | Low tide 5:56 pm · 1.7 ft | High tide 10:17 pm · 2.1 ft | Coef. 67 | 70% | Major periods 3:29 am · 4:00 pm | Medium |
| Sun 1 | 6:15 am · 5:54 pm | Low tide 6:09 am · -0.4 ft | High tide 2:07 pm · 2.2 ft | Low tide 7:24 pm · 1.6 ft | High tide 11:30 pm · 1.9 ft | Coef. 60 | 59% | Major periods 4:30 am · 4:59 pm | Medium |
| Mon 2 | 6:16 am · 5:54 pm | Low tide 7:17 am · -0.2 ft | High tide 3:06 pm · 2.2 ft | Low tide 8:49 pm · 1.4 ft | — | Coef. 58 | Last quarter | Major periods 5:26 am · 5:52 pm | Medium |
| Tue 3 | 6:16 am · 5:54 pm | High tide 1:06 am · 1.8 ft | Low tide 8:26 am · 0.0 ft | High tide 3:52 pm · 2.2 ft | Low tide 9:57 pm · 1.1 ft | Coef. 61 | 37% | Major periods 6:17 am · 6:41 pm | Medium |
| Wed 4 | 6:16 am · 5:53 pm | High tide 2:54 am · 1.8 ft | Low tide 9:31 am · 0.2 ft | High tide 4:29 pm · 2.2 ft | Low tide 10:51 pm · 0.7 ft | Coef. 67 | 27% | Major periods 7:05 am · 7:27 pm | Low |
▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Where this tide comes from
Tides from the Apra Harbor station (NOAA), 1.1 mi from Apra Harbor. Times and heights are its predictions.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)
The sea at Apra Harbor
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.3 ft
- Significant2.6 ft
- Highest expectedHighest5.2 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.2 ft. Before heading out, expect waves of up to 5.2 ft.
Wind on the coast and offshore
The model doesn't separate offshore wind here: it's the same as on the coast.
Cross-offshore wind. The coast faces west and the wind comes off the land at an angle: calmer water near the shore, and bait and boats drift out to sea.
Wave height, next 7 daysWaves, next 7 days
Waves build over the next few days. The biggest waves arrive on Sunday 1: 6.8 ft with a period of 12 s, from the north (moderate).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.
Water about normal for late October.
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
Water temperature →Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 7:51 am (local time).
Nearest marine station
This is a real measurement of the sea, not a forecast. Data from station APRP7, NOAA National Data Buoy Center (public domain).
Surf in Apra Harbor today
Surf today
Flat- Barely any waves (0.8 ft sets): flat
- Light offshore wind (9 mph): it holds up and grooms the waves
- Rising tide (high tide at 10:30 am)
It’s flat today: almost no waves reach this coast.
- Light: First light 5:53 am · sunrise 6:15 am · sunset 5:56 pm · last light 6:17 pm
- Tide: low 3:18 am (-0.7 ft), high 10:30 am (2.3 ft), low 3:44 pm (1.5 ft) and high 8:38 pm (2.3 ft). Every break has its own tide: some work at low tide and others at high tide. The tide doesn’t change the score here.
- Water at 83.7 °F: boardshorts or a swimsuit and a rash guard.
- Energy: 36 kJ · Low power
Today’s surf at a glance
The best window, 7:00 am to 11:00 am, has light offshore wind, though with barely any waves.
An estimate for this stretch of coast, not for a specific break: every beach or reef works its own way (its tide, bottom and angle). Check it when you get there.
Follow the flags and the lifeguards, and don’t paddle out if the surf is above your level: this score is a guide, not a substitute for what you see when you get there.
Diving in Apra Harbor today
Diving and snorkeling today
Likely visibility: good- Slack water around high tide (10:30 am): little current from 10:00 am to 11:10 am
- 1.4 ft swell at 9 s from the east-northeast: some surge on the bottom
- Moderate offshore wind (13 mph): it pushes surface swimmers away from shore
- 0.5 mph current toward the south-southwest, weak (model)
- Sun high: more light underwater
- Slack water today: low tide 3:18 am (3:00–3:40 am), high tide 10:30 am (10:00–11:10 am), low tide 3:44 pm (2:50–4:30 pm) and high tide 8:38 pm (8:10–9:00 pm)
- Likely visibility: good. Rain (0.23 in) over the last few days has stirred up the water. Based on the last 24 hours of data.
- Water at 83.7 °F: a shorty or a rash guard.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 6:17 pm. Waning gibbous (88%), rising at 8:40 pm: a bright night.
Your diving day at a glance
The best window, 9:40 am to 11:30 am, combines slack water at high tide, weak current and the sun high, though with moderate wind. Also worth a look from 4:30 pm to 5:20 pm, with light wind, though with current.
Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.
Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.
Dive sites, wrecks and dive shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
- Dogleg Reef 2.5 mi
- Outhouse Beach 2.5 mi
- American Tanker 2.6 mi
- Windjammer 2.1 mi
- Wreck 1.4 mi
- Wreck 1.5 mi
- Wreck 1.7 mi
- Wreck 1.8 mi
- Wreck 1.8 mi
- Wanderers S2 CLUB 3.0 mi
- Dive on Guam 4.6 mi
- MDA (Piti Shop) 4.6 mi
Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.
Sites: © OpenStreetMap contributors (ODbL). Wrecks: EMODnet Human Activities (AND-International), from UK Hydrographic Office data, CC BY 4.0. Contains public sector information licensed under the Open Government Licence v3.0. US wrecks: NOAA electronic navigational charts (ENC), a U.S. Government work; not for navigation.
Weather in Apra Harbor
Now in Apra Harbor
- Low / high
- 79 / 88 °F
- Rain
- 0.11 in · 80%
- Clouds
- 100%
- Humidity
- 84%
- Dew pointDew point
- 76 °F
- Visibility
- 15 mi
- UV indexUV
- 1 · low
- Air qualityAir
- Good · 16
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising · now Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling Anglers say fish feed more before the change
Rising now (+0.06 inHg in 3 hours). It barely changes over the next 48 hours. Rising pressure: anglers say fish bite less for a while. Fast changes, either way, tend to affect fishing.
Today, hour by hourHour by hour
Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.
| Time | 12:00 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Light drizzle | Light drizzle | Light drizzle | Light drizzle | Light drizzle | Mainly clear | Partly cloudy | Overcast |
| Temperature | 79° | 79° | 79° | 85° | 88° | 87° | 83° | 81° |
| Wind (mph) | 1 WNW | 2 NW | 4 ENE | 11 ENE | 13 ENE | 13 NE | 11 NE | 9 NNE |
| Gusts | 5 | 3 | 8 | 18 | 23 | 22 | 18 | 14 |
| Waves | 2.6 ft | 2.6 ft | 2.6 ft | 2.6 ft | 2.8 ft | 3.0 ft | 3.1 ft | 3.0 ft |
| Rain | 0.02 in | 0.00 in | 0.02 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.00 in |
- 9:00 am 85° 11 ENE 2.6 ft
- 12:00 pm 88° 13 ENE 2.8 ft
- 3:00 pm 87° 13 NE 3.0 ft
- 6:00 pm 83° 11 NE 3.1 ft
- 9:00 pm 81° 9 NNE 3.0 ft
- 12:00 am 80° 9 NNE 3.0 ft
- 3:00 am 79° 7 N 3.1 ft
- 6:00 am 80° 6 NNW 3.3 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 29 | 79 / 88 °F | 13 mph NE | 3.1 ft | 10:30 am · 8:38 pm | |
| Fri 30 | 79 / 85 °F | 12 mph NW | 4.7 ft | 11:38 am · 9:23 pm | |
| Sat 31 | 79 / 86 °F | 12 mph WSW | 6.7 ft | 12:54 pm · 10:17 pm | |
| Sun 1 | 79 / 87 °F | 7 mph NNW | 6.8 ft | 2:07 pm · 11:30 pm | |
| Mon 2 | 78 / 89 °F | 8 mph ESE | 6.3 ft | 3:06 pm | |
| Tue 3 | 77 / 89 °F | 13 mph ESE | 5.4 ft | 1:06 am · 3:52 pm | |
| Wed 4 | 76 / 87 °F | 14 mph E | 4.5 ft | 2:54 am · 4:29 pm | |
| Thu 5 | 79 / 88 °F | 9 mph E | 4.7 ft | 4:28 am · 5:00 pm | |
| Fri 6 | 78 / 87 °F | 8 mph NE | 4.5 ft | 5:42 am · 5:28 pm | |
| Sat 7 | 79 / 87 °F | 7 mph NE | 3.7 ft | 6:43 am · 5:53 pm | |
| Sun 8 | 80 / 87 °F | 9 mph E | — | 7:35 am · 6:18 pm | |
| Mon 9 | 78 / 87 °F | 10 mph ENE | — | 8:20 am · 6:42 pm | |
| Tue 10 | 77 / 88 °F | 11 mph ENE | — | 9:02 am · 7:06 pm | |
| Wed 11 | 78 / 88 °F | 13 mph ENE | — | 9:43 am · 7:32 pm |
- Fri 30 Light drizzle 79° / 85° 4.7 ft
- Sat 31 Light drizzle 79° / 86° 6.7 ft
- Sun 1 Drizzle 79° / 87° 6.8 ft
- Mon 2 Drizzle 78° / 89° 6.3 ft
- Tue 3 Light showers 77° / 89° 5.4 ft
- Wed 4 Light drizzle 76° / 87° 4.5 ft
- Thu 5 Drizzle 79° / 88° 4.7 ft
Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.
- The models Partly agree · medium confidence: unsure about rain tomorrow. See the models →
- Outlook Next few weeks, compared with normal: normal temperatures, a bit drier and a near-normal sea. See the outlook →
- Normal Today, warmer than normal for late October (+2.0 °F; normal high: 86 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 7:51 am (local time).
The sun in Apra Harbor
Sunrise and sunset
- First light 5:28 am
- Full dark 6:43 pm
- Civil dawn 5:53 am
- Civil dusk 6:17 pm
- Solar noon 12:05 pm (63° high)
- Daylight 11 h 41 min (−1 min)
- Evening golden hour 5:26 pm
- Full dark 6:43 pm
Golden hour and the day-night map
Today the sun is 92,345,284 mi away and looks 32′ 11″ across.
The moon in Apra Harbor
Moon phase and position
Today the moon is 226,469 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: medium- 1:21–3:21 am Major · the moon passes overhead · high activity
- 1:53–3:53 pm Major · the moon passes underfoot · high activity
- 8:36–9:36 am Minor · moonset · medium activity
- 8:10–9:10 pm Minor · moonrise · medium activity
According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.
Upcoming moon phases
2026 moon calendar →- Last quarter Mon, Nov 2 · 6:29 amNov 2 in 4 days
- New moon Mon, Nov 9 · 5:03 pmNov 9 in 11 days
- First quarter Tue, Nov 17 · 9:48 pmNov 17 in 19 days
- Full moon Wed, Nov 25 · 12:54 amNov 25 in 27 days
Perigee on October 29, 226,426 mi away, coinciding with the spring tides from October 27 to 29: they will be stronger than usual.
Where to fish in Apra Harbor
Piers, ramps and tackle shops nearby
Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors
Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Water depth
Drops off fastThe bottom drops off fast: the water is 33 ft deep just 30 ft from shore. It reaches 164 ft at 130 ft.
From the shoreline (2.3 mi from Apra Harbor) out to sea, heading west.
How far from shore
- 16 ft deep10 ft
- 33 ft deep30 ft
- 66 ft deep50 ft
- 164 ft deep130 ft
For fishing, swimming and diving
- Shore fishing. Deep water close in: about 256 ft just 330 ft out. Good for casting from rocks, jetties or the beach itself; current and surf hit harder here.
- Swimming. The bottom drops quickly near the shore and you are soon out of your depth. Keep an eye on kids and weak swimmers.
- Diving. Shore diving works here: 33 ft at 30 ft and 66 ft at 50 ft from shore.
Rough estimate: here the data comes in cells of about 0.3 mi and misses details near shore (rocks, sandbars, small coves).
Source: NOAA ETOPO 2022 (CC0), cells of about 0.3 mi; depth below mean sea level. For reference only: not for navigation or anchoring.
Tides near Apra HarborTides nearby
- Agat Village3.2 mi
- Santa Rita3.2 mi
- Piti Village3.6 mi
- Asan-Maina Village5.3 mi
- Agana Heights Village6.9 mi
- Sinajana Village7.2 mi
- Hagåtña7.3 mi
- Hagåtña Village7.7 mi
- Yona Village8.5 mi
- Talofofo Village8.7 mi
Apra Harbor at a glance
- Town or city of about 2,930 people. Coordinates: 13.428° N, 144.653° E.
- It is 10 mi west of Mangilao Village, the main place in Guam. The sun rises 1 min later and sets 1 min later than in Mangilao Village.
- The nearest tide station, Apra Harbor, is 1.1 mi to the north.
- Its coast faces west.
- Beaches and harbors nearby: USN Wharf T (0.7 mi), USN Wharf U (0.7 mi), USN Wharf S (0.7 mi), Sumay Yacht Club (0.7 mi).
Questions about Apra HarborQuestions
What time is high tide today in Apra Harbor?
Today in Apra Harbor there are high tides at 10:30 am (2.3 ft) and 8:38 pm (2.3 ft) and low tides at 3:18 am and 3:44 pm. Tide coefficient 85.
What time is sunset today in Apra Harbor?
At 5:56 pm. There is light until the end of civil twilight, at 6:17 pm.
What time is sunrise tomorrow in Apra Harbor?
At 6:15 am. First light comes at 5:28 am.
What phase is the moon today?
Waning gibbous, 88% illuminated. New moon on Mon, Nov 9 · 5:03 pm.
When are the next spring tides?
From October 27 to 29, together with the lunar perigee: they will be stronger than usual.
What are today's solunar periods?
Major 1:21–3:21 am, Minor 8:36–9:36 am, Major 1:53–3:53 pm, Minor 8:10–9:10 pm. Today's activity is medium.
What's the weather like today in Apra Harbor?
Light drizzle, from 79 °F to 88 °F, with a gentle breeze from the east-northeast (9 mph) and a 80% chance of rain.
How is the sea today in Apra Harbor?
Slight (Douglas 3): 2.6 ft waves with a period of 8.2 s from the northeast. The water is 83.8 °F.
When is the best time to visit Apra Harbor?
The best time to visit Apra Harbor is from February to April: highs of 84 °F to 87 °F, about 5 rainy days a month and 5 hours of sunshine a day.
Can I use this data for navigation?
No. These are predictions for fishing and leisure; for navigation, use the official publications.
Where this data comes from
Tide: NOAA station Apra Harbor (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).