Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

87.3°F

Measurement Time: Thursday, September 3, 2026, 3:42 PM ChST

Today's Tides

Low: September 3, 5:43 AM, 0.2 ft
 High: September 3, 12:39 PM, 2.1 ft
Low: September 3, 5:44 PM, 1.6 ft
 High: September 3, 11:09 PM, 2.4 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

86°F
Scattered Showers And Thunderstorms
Scattered Showers And Thunderstorms
79%
SW 20 mph
78°F

Weather Forecast

Scattered Showers And Thunderstorms
This Afternoon
86°F - Scattered Showers And Thunderstorms
Scattered Showers And Thunderstorms
Tonight
84°F - Scattered Showers And Thunderstorms
Isolated Showers And Thunderstorms
Friday
86°F - Isolated Showers And Thunderstorms
Isolated Showers And Thunderstorms
Friday Night
84°F - Isolated Showers And Thunderstorms
Scattered Rain Showers
Saturday
86°F - Scattered Rain Showers
Chance Rain Showers
Saturday Night
84°F - Chance Rain Showers
Chance Rain Showers
Sunday
86°F - Chance Rain Showers
Slight Chance Rain Showers
Sunday Night
84°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Labor Day
86°F - Slight Chance Rain Showers
Chance Rain Showers
Monday Night
84°F - Chance Rain Showers
Slight Chance Rain Showers
Tuesday
86°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Tuesday Night
84°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Wednesday
86°F - Slight Chance Rain Showers
Chance Showers And Thunderstorms
Wednesday Night
84°F - Chance Showers And Thunderstorms

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:32 PM
Daylight: 12 hrs 21 mins
Moonrise: 10:54 PM
Moon Transit: 4:37 AM
Moonset: 11:16 AM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
12:00 AM - 12:00 AM

Minor Periods

10:24 PM - 11:54 PM
10:46 AM - 12:16 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:32 PM
Daylight: 12 hrs 21 mins
Moonrise: 10:54 PM
Moon Transit: 4:37 AM
Moonset: 11:16 AM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
12:00 AM - 12:00 AM

Minor Periods

10:24 PM - 11:54 PM
10:46 AM - 12:16 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:32 PM
Daylight: 12 hrs 21 mins
Moonrise: 10:54 PM
Moon Transit: 4:37 AM
Moonset: 11:16 AM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
12:00 AM - 12:00 AM

Minor Periods

10:24 PM - 11:54 PM
10:46 AM - 12:16 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:31 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:52 PM
Moon Transit: 5:35 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
12:11 AM - 2:41 AM

Minor Periods

12:00 AM - 12:00 AM
11:49 AM - 1:19 PM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:31 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:52 PM
Moon Transit: 5:35 AM
Moonset: 12:19 AM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
12:11 AM - 2:41 AM

Minor Periods

12:00 AM - 12:00 AM
11:49 AM - 1:19 PM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:30 PM
Daylight: 12 hrs 20 mins
Moonrise: 12:52 AM
Moon Transit: 6:37 AM
Moonset: 1:23 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
1:12 AM - 3:42 AM

Minor Periods

12:53 AM - 2:23 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:20 AM
Sunset: 6:30 PM
Daylight: 12 hrs 20 mins
Moonrise: 12:52 AM
Moon Transit: 6:37 AM
Moonset: 1:23 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
1:12 AM - 3:42 AM

Minor Periods

12:53 AM - 2:23 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:30 PM
Daylight: 12 hrs 19 mins
Moonrise: 12:55 AM
Moon Transit: 7:40 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

7:10 AM - 9:40 AM
2:15 AM - 4:45 AM

Minor Periods

1:55 PM - 3:25 PM
12:25 AM - 1:55 AM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:30 PM
Daylight: 12 hrs 19 mins
Moonrise: 12:55 AM
Moon Transit: 7:40 AM
Moonset: 2:25 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

7:10 AM - 9:40 AM
2:15 AM - 4:45 AM

Minor Periods

1:55 PM - 3:25 PM
12:25 AM - 1:55 AM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:29 PM
Daylight: 12 hrs 19 mins
Moonrise: 1:59 AM
Moon Transit: 8:42 AM
Moonset: 3:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
3:17 AM - 5:47 AM

Minor Periods

2:53 PM - 4:23 PM
1:29 AM - 2:59 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:29 PM
Daylight: 12 hrs 19 mins
Moonrise: 1:59 AM
Moon Transit: 8:42 AM
Moonset: 3:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
3:17 AM - 5:47 AM

Minor Periods

2:53 PM - 4:23 PM
1:29 AM - 2:59 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:28 PM
Daylight: 12 hrs 18 mins
Moonrise: 3:03 AM
Moon Transit: 9:40 AM
Moonset: 4:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
9:10 AM - 11:40 AM

Minor Periods

3:45 PM - 5:15 PM
2:33 AM - 4:03 AM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:19 AM
Sunset: 6:28 PM
Daylight: 12 hrs 18 mins
Moonrise: 3:03 AM
Moon Transit: 9:40 AM
Moonset: 4:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
9:10 AM - 11:40 AM

Minor Periods

3:45 PM - 5:15 PM
2:33 AM - 4:03 AM

Action Rating: 2 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:18 AM
Sunset: 6:28 PM
Daylight: 12 hrs 17 mins
Moonrise: 4:05 AM
Moon Transit: 10:35 AM
Moonset: 5:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

5:12 AM - 7:42 AM
10:05 AM - 12:35 AM

Minor Periods

4:32 PM - 6:02 PM
3:35 AM - 5:05 AM

Action Rating: 3 out of 5

Thursday, January 1, 1970

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:10 AM
Sun Transit: 12:18 AM
Sunset: 6:28 PM
Daylight: 12 hrs 17 mins
Moonrise: 4:05 AM
Moon Transit: 10:35 AM
Moonset: 5:02 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

5:12 AM - 7:42 AM
10:05 AM - 12:35 AM

Minor Periods

4:32 PM - 6:02 PM
3:35 AM - 5:05 AM

Action Rating: 3 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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