Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

84.6°F

Measurement Time: Friday, March 6, 2026, 4:18 AM ChST

Today's Tides

Low: March 6, 3:22 AM, 0.4 ft
 High: March 6, 9:22 AM, 2.2 ft
Low: March 6, 3:53 PM, 0.4 ft
 High: March 6, 9:49 PM, 2.0 ft

Temperature Locations

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Local Points of Interest

Naval Base Guam; Sasa Bay; San Luis Beach; Mariana Islands; Philippine Sea; Pacific Ocean

Apra Harbor

Station Name: Apra Harbor, Guam
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 13 feet

Sensor Depth: -5 feet

Nearest Address:
San Luis Road
Santa Rita, GU 96910
Sånta Rita-Sumai Municipali County

GPS Coordinates: 13.44339, 144.656361

Nearby Water Temperatures

Philippine Sea, Yigo, GU (19.3 mi)

Weather for Santa Rita, Guam

Current Weather

79.2°F
Partly Cloudy
Partly Cloudy
83.2°F
86.2°F
84%
ENE 15.9 mph
22.8 mph
81°F
72.3°F
0 in
0%
9 mi
1008 mbar
1

Five Day Weather Forecast

Moderate rain
Fri
H: 83°F
L: 80°F
Heavy rain
Sat
H: 79°F
L: 77°F
Heavy rain
Sun
H: 80°F
L: 78°F
Moderate rain
Mon
H: 81°F
L: 80°F
Patchy rain nearby
Tue
H: 82°F
L: 80°F

Air Quality

PM2.5: 9.55 μg/m3
PM10: 14.35 μg/m3
Carbon Monoxide: 119.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 38 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:32 AM
Sunset: 6:31 PM
Daylight: 11 hrs 56 mins
Moonrise: 8:49 PM
Moon Transit: 2:04 AM
Moonset: 8:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
9:26 PM - 11:56 PM

Minor Periods

8:19 PM - 9:49 PM
7:36 AM - 9:06 AM

Action Rating: 2 out of 5

Flood Watch issued March 5 at 3:33PM ChST until March 17 at 7:00AM ChST by NWS Tiyan GU

Effective: Thu March 5, 2026, 3:33 PM
Expires: Fri March 6, 2026, 5:30 PM

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...From late Friday night Until Tuesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A broad tropical disturbance will interact with a shear line, impacting the Marianas late this week, through the weekend, and into next weekend. Several rounds of heavy to very heavy rainfall will be possible during this time frame. This could lead to 5 to 10 inches of rain across the Marianas with locally heavy amounts. Due to the wet antecedents from early this week, the conditions for flash flooding could be met at a lower threshold. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Friday, March 6, 2026

Weather Forecast

Moderate rain
82.7°F
80.2°F
81.5°F
79%
0.21 in
89%
0%
20.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.76 μg/m3
PM10: 10.65 μg/m3
Carbon Monoxide: 104.65 μg/m3
Nitrogen Dioxide: 1.02 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 32.32 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:32 AM
Sunset: 6:31 PM
Daylight: 11 hrs 56 mins
Moonrise: 8:49 PM
Moon Transit: 2:04 AM
Moonset: 8:06 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
9:26 PM - 11:56 PM

Minor Periods

8:19 PM - 9:49 PM
7:36 AM - 9:06 AM

Action Rating: 2 out of 5

Saturday, March 7, 2026

Weather Forecast

Heavy rain
78.5°F
76.9°F
78.2°F
92%
6.49 in
89%
0%
20.4 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 2.88 μg/m3
PM10: 4.28 μg/m3
Carbon Monoxide: 103.57 μg/m3
Nitrogen Dioxide: 1.12 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 30.44 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:32 AM
Sunset: 6:31 PM
Daylight: 11 hrs 57 mins
Moonrise: 9:38 PM
Moon Transit: 2:47 AM
Moonset: 8:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
12:00 AM - 12:00 AM

Minor Periods

9:08 PM - 10:38 PM
8:14 AM - 9:44 AM

Action Rating: 2 out of 5

Sunday, March 8, 2026

Weather Forecast

Heavy rain
80.1°F
77.8°F
79°F
89%
1.5 in
81%
0%
20.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 2.88 μg/m3
PM10: 4.16 μg/m3
Carbon Monoxide: 102.28 μg/m3
Nitrogen Dioxide: 1.16 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 35.4 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:32 AM
Sunset: 6:31 PM
Daylight: 11 hrs 57 mins
Moonrise: 10:29 PM
Moon Transit: 3:31 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%

Best Times for Fishing or Hunting

Major Periods

3:01 AM - 5:31 AM
12:00 AM - 12:00 AM

Minor Periods

9:59 PM - 11:29 PM
8:52 AM - 10:22 AM

Action Rating: 2 out of 5

Monday, March 9, 2026

Weather Forecast

Moderate rain
81.2°F
79.5°F
80.5°F
85%
0.47 in
88%
0%
31.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 3.17 μg/m3
PM10: 4.58 μg/m3
Carbon Monoxide: 105.97 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 38.15 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 12:32 AM
Sunset: 6:31 PM
Daylight: 11 hrs 58 mins
Moonrise: 11:20 PM
Moon Transit: 4:17 AM
Moonset: 10:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%

Best Times for Fishing or Hunting

Major Periods

3:47 AM - 6:17 AM
12:00 AM - 12:00 AM

Minor Periods

12:00 AM - 12:00 AM
9:34 AM - 11:04 AM

Action Rating: 3 out of 5

Tuesday, March 10, 2026

Weather Forecast

Patchy rain nearby
82.4°F
80.1°F
81.4°F
82%
0.19 in
88%
0%
28.4 mph
6


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 12:31 AM
Sunset: 6:32 PM
Daylight: 11 hrs 59 mins
Moonrise: 12:20 AM
Moon Transit: 5:05 AM
Moonset: 10:49 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
12:00 AM - 12:00 AM

Minor Periods

10:19 AM - 11:49 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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