Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

88.2°F

Measurement Time: Friday, September 11, 2026, 2:54 PM ChST

Today's Tides

Low: September 11, 1:31 AM, 1.0 ft
 High: September 11, 7:06 AM, 2.6 ft
Low: September 11, 1:47 PM, 0.2 ft
 High: September 11, 8:07 PM, 2.5 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
Isolated Showers And Thunderstorms
Isolated Showers And Thunderstorms
78%
NE 5 mph
78°F

Weather Forecast

Isolated Showers And Thunderstorms
This Afternoon
86°F - Isolated Showers And Thunderstorms
Isolated Showers And Thunderstorms
Tonight
85°F - Isolated Showers And Thunderstorms
Scattered Rain Showers
Saturday
87°F - Scattered Rain Showers
Isolated Rain Showers
Saturday Night
85°F - Isolated Rain Showers
Chance Rain Showers
Sunday
87°F - Chance Rain Showers
Slight Chance Rain Showers
Sunday Night
85°F - Slight Chance Rain Showers
Chance Rain Showers
Monday
87°F - Chance Rain Showers
Chance Showers And Thunderstorms
Monday Night
85°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday
87°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Tuesday Night
85°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday
87°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday Night
85°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday
87°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday Night
85°F - Chance Showers And Thunderstorms

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:18 AM
Sunset: 6:26 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:57 AM
Moon Transit: 12:13 AM
Moonset: 6:26 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
11:43 AM - 2:13 PM

Minor Periods

5:56 PM - 7:26 PM
5:27 AM - 6:57 AM

Action Rating: 4 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: 6:26 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:57 AM
Moon Transit: 12:13 AM
Moonset: 6:26 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
11:43 AM - 2:13 PM

Minor Periods

5:56 PM - 7:26 PM
5:27 AM - 6:57 AM

Action Rating: 4 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: 6:26 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:57 AM
Moon Transit: 12:13 AM
Moonset: 6:26 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
11:43 AM - 2:13 PM

Minor Periods

5:56 PM - 7:26 PM
5:27 AM - 6:57 AM

Action Rating: 4 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: 12:17 AM
Sunset: 6:25 PM
Daylight: 12 hrs 15 mins
Moonrise: 6:50 AM
Moon Transit: 12:58 AM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
12:28 AM - 2:58 PM

Minor Periods

6:35 PM - 8:05 PM
6:20 AM - 7:50 AM

Action Rating: 5 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: 12:17 AM
Sunset: 6:25 PM
Daylight: 12 hrs 15 mins
Moonrise: 6:50 AM
Moon Transit: 12:58 AM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
12:28 AM - 2:58 PM

Minor Periods

6:35 PM - 8:05 PM
6:20 AM - 7:50 AM

Action Rating: 5 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: 12:17 AM
Sunset: 6:25 PM
Daylight: 12 hrs 14 mins
Moonrise: 7:41 AM
Moon Transit: 1:43 PM
Moonset: 7:43 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
1:13 PM - 3:43 PM

Minor Periods

7:13 PM - 8:43 PM
7:11 AM - 8:41 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: 12:17 AM
Sunset: 6:25 PM
Daylight: 12 hrs 14 mins
Moonrise: 7:41 AM
Moon Transit: 1:43 PM
Moonset: 7:43 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

8:22 AM - 10:52 AM
1:13 PM - 3:43 PM

Minor Periods

7:13 PM - 8:43 PM
7:11 AM - 8:41 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: 12:17 AM
Sunset: 6:24 PM
Daylight: 12 hrs 13 mins
Moonrise: 8:33 AM
Moon Transit: 2:29 PM
Moonset: 8:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
1:59 PM - 4:29 PM

Minor Periods

7:53 PM - 9:23 PM
8:03 AM - 9:33 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: 12:17 AM
Sunset: 6:24 PM
Daylight: 12 hrs 13 mins
Moonrise: 8:33 AM
Moon Transit: 2:29 PM
Moonset: 8:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

9:07 AM - 11:37 AM
1:59 PM - 4:29 PM

Minor Periods

7:53 PM - 9:23 PM
8:03 AM - 9:33 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: 12:16 AM
Sunset: 6:23 PM
Daylight: 12 hrs 13 mins
Moonrise: 9:24 AM
Moon Transit: 3:15 PM
Moonset: 9:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

9:53 AM - 12:23 AM
2:45 PM - 5:15 PM

Minor Periods

8:35 PM - 10:05 PM
8:54 AM - 10:24 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: 12:16 AM
Sunset: 6:23 PM
Daylight: 12 hrs 13 mins
Moonrise: 9:24 AM
Moon Transit: 3:15 PM
Moonset: 9:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

9:53 AM - 12:23 AM
2:45 PM - 5:15 PM

Minor Periods

8:35 PM - 10:05 PM
8:54 AM - 10:24 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: 6:11 AM
Sun Transit: 12:16 AM
Sunset: 6:22 PM
Daylight: 12 hrs 12 mins
Moonrise: 10:17 AM
Moon Transit: 4:03 PM
Moonset: 9:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

10:41 AM - 1:11 PM
3:33 PM - 6:03 PM

Minor Periods

9:19 PM - 10:49 PM
9:47 AM - 11:17 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: 6:11 AM
Sun Transit: 12:16 AM
Sunset: 6:22 PM
Daylight: 12 hrs 12 mins
Moonrise: 10:17 AM
Moon Transit: 4:03 PM
Moonset: 9:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

10:41 AM - 1:11 PM
3:33 PM - 6:03 PM

Minor Periods

9:19 PM - 10:49 PM
9:47 AM - 11:17 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: 6:11 AM
Sun Transit: 12:16 AM
Sunset: 6:22 PM
Daylight: 12 hrs 11 mins
Moonrise: 11:10 AM
Moon Transit: 4:53 PM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

11:31 AM - 2:01 PM
4:23 PM - 6:53 PM

Minor Periods

10:07 PM - 11:37 PM
10:40 AM - 12:10 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: 6:11 AM
Sun Transit: 12:16 AM
Sunset: 6:22 PM
Daylight: 12 hrs 11 mins
Moonrise: 11:10 AM
Moon Transit: 4:53 PM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

11:31 AM - 2:01 PM
4:23 PM - 6:53 PM

Minor Periods

10:07 PM - 11:37 PM
10:40 AM - 12:10 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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