Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

88.0°F

Measurement Time: Wednesday, September 23, 2026, 5:30 PM ChST

Today's Tides

 High: September 23, 4:24 AM, 2.0 ft
Low: September 23, 11:19 AM, 0.2 ft
 High: September 23, 6:24 PM, 2.2 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

85°F
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
79%
SSW 10 mph
78°F

Weather Forecast

Chance Showers And Thunderstorms
This Afternoon
86°F - Chance Showers And Thunderstorms
Isolated Rain Showers
Tonight
78°F - Isolated Rain Showers
Isolated Rain Showers
Thursday
86°F - Isolated Rain Showers
Scattered Rain Showers
Thursday Night
78°F - Scattered Rain Showers
Scattered Showers And Thunderstorms
Friday
86°F - Scattered Showers And Thunderstorms
Isolated Rain Showers
Friday Night
78°F - Isolated Rain Showers
Chance Showers And Thunderstorms
Saturday
86°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Saturday Night
78°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Sunday
86°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Sunday Night
78°F - Chance Showers And Thunderstorms
Slight Chance Rain Showers
Monday
86°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Monday Night
78°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Tuesday
86°F - Slight Chance Rain Showers
Slight Chance Rain Showers
Tuesday Night
78°F - Slight Chance Rain Showers

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:13 AM
Sunset: 6:17 PM
Daylight: 12 hrs 7 mins
Moonrise: 3:55 PM
Moon Transit: 9:49 PM
Moonset: 2:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

4:28 PM - 6:58 PM
9:19 PM - 11:49 PM

Minor Periods

3:25 PM - 4:55 PM
2:26 AM - 3:56 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: 12:13 AM
Sunset: 6:17 PM
Daylight: 12 hrs 7 mins
Moonrise: 3:55 PM
Moon Transit: 9:49 PM
Moonset: 2:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

4:28 PM - 6:58 PM
9:19 PM - 11:49 PM

Minor Periods

3:25 PM - 4:55 PM
2:26 AM - 3:56 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: 12:13 AM
Sunset: 6:17 PM
Daylight: 12 hrs 7 mins
Moonrise: 3:55 PM
Moon Transit: 9:49 PM
Moonset: 2:56 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.9%

Best Times for Fishing or Hunting

Major Periods

4:28 PM - 6:58 PM
9:19 PM - 11:49 PM

Minor Periods

3:25 PM - 4:55 PM
2:26 AM - 3:56 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: 12:13 AM
Sunset: 6:17 PM
Daylight: 12 hrs 6 mins
Moonrise: 4:34 PM
Moon Transit: 10:34 PM
Moonset: 3:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

5:12 PM - 7:42 PM
12:00 AM - 12:00 AM

Minor Periods

4:04 PM - 5:34 PM
3:16 AM - 4:46 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: 12:13 AM
Sunset: 6:17 PM
Daylight: 12 hrs 6 mins
Moonrise: 4:34 PM
Moon Transit: 10:34 PM
Moonset: 3:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

5:12 PM - 7:42 PM
12:00 AM - 12:00 AM

Minor Periods

4:04 PM - 5:34 PM
3:16 AM - 4:46 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: 12:13 AM
Sunset: 6:16 PM
Daylight: 12 hrs 5 mins
Moonrise: 5:12 PM
Moon Transit: 11:18 PM
Moonset: 4:37 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

5:56 PM - 8:26 PM
12:00 AM - 12:00 AM

Minor Periods

4:42 PM - 6:12 PM
4:07 AM - 5:37 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: 6:11 AM
Sun Transit: 12:13 AM
Sunset: 6:16 PM
Daylight: 12 hrs 5 mins
Moonrise: 5:12 PM
Moon Transit: 11:18 PM
Moonset: 4:37 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

5:56 PM - 8:26 PM
12:00 AM - 12:00 AM

Minor Periods

4:42 PM - 6:12 PM
4:07 AM - 5:37 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:15 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:50 PM
Moon Transit: 10:33 PM
Moonset: 5:27 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:20 PM - 6:50 PM
4:57 AM - 6:27 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:15 PM
Daylight: 12 hrs 4 mins
Moonrise: 5:50 PM
Moon Transit: 10:33 PM
Moonset: 5:27 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

5:20 PM - 6:50 PM
4:57 AM - 6:27 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:14 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:30 PM
Moon Transit: 12:02 AM
Moonset: 6:19 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:00 PM - 7:30 PM
5:49 AM - 7:19 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:14 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:30 PM
Moon Transit: 12:02 AM
Moonset: 6:19 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

6:00 PM - 7:30 PM
5:49 AM - 7:19 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:14 PM
Daylight: 12 hrs 3 mins
Moonrise: 7:12 PM
Moon Transit: 12:49 AM
Moonset: 7:12 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
8:16 PM - 10:46 PM

Minor Periods

6:42 PM - 8:12 PM
6:42 AM - 8:12 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: 6:11 AM
Sun Transit: 12:12 AM
Sunset: 6:14 PM
Daylight: 12 hrs 3 mins
Moonrise: 7:12 PM
Moon Transit: 12:49 AM
Moonset: 7:12 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
8:16 PM - 10:46 PM

Minor Periods

6:42 PM - 8:12 PM
6:42 AM - 8:12 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: 6:11 AM
Sun Transit: 12:11 AM
Sunset: 6:13 PM
Daylight: 12 hrs 2 mins
Moonrise: 7:59 PM
Moon Transit: 1:38 AM
Moonset: 8:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
9:08 PM - 11:38 PM

Minor Periods

7:29 PM - 8:59 PM
7:39 AM - 9:09 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: 12:11 AM
Sunset: 6:13 PM
Daylight: 12 hrs 2 mins
Moonrise: 7:59 PM
Moon Transit: 1:38 AM
Moonset: 8:09 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

1:08 AM - 3:38 AM
9:08 PM - 11:38 PM

Minor Periods

7:29 PM - 8:59 PM
7:39 AM - 9:09 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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