Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

85.1°F

Measurement Time: Friday, January 30, 2026, 8:18 PM ChST

Today's Tides

 High: January 30, 7:00 AM, 2.1 ft
Low: January 30, 11:36 AM, 1.6 ft
 High: January 30, 4:24 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

79.2°F
Patchy rain nearby
Patchy rain nearby
83.8°F
87.1°F
89%
ENE 11.6 mph
16.8 mph
81°F
74°F
0 in
0%
9 mi
1014 mbar
0

Five Day Weather Forecast

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

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 5.35 μg/m3
Carbon Monoxide: 112.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 39 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:34 AM
Sunset: 6:21 PM
Daylight: 11 hrs 32 mins
Moonrise: 3:34 PM
Moon Transit: 10:20 PM
Moonset: 4:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

4:54 PM - 7:24 PM
12:00 AM - 12:00 AM

Minor Periods

3:04 PM - 4:34 PM
3:32 AM - 5:02 AM

Action Rating: 2 out of 5

High Surf Advisory issued January 30 at 4:20PM ChST until February 2 at 4:00PM ChST by NWS Tiyan GU

Effective: Fri January 30, 2026, 4:20 PM
Expires: Sat January 31, 2026, 7:30 AM

* WHAT...Large breaking waves of 7 to 10 feet and dangerous rip currents. * WHERE...High Surf for north facing reefs of the Marianas. High Risk of Rip Currents for north and east facing reefs. * WHEN...From 4 PM Saturday to 4 PM ChST Monday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf is already elevated due to a complex mixture of swells moving through the region, generated by distant systems. As a shear line descends into the islands and a pulse of northerly swell moves into the region, hazardous surf around 9 feet for north facing reefs and dangerous rip currents along north and east facing reefs are expected to develop. Surf is expected to peak around 10 feet Sunday before slowly decreasing Sunday night and Monday as the shear line weakens and the northerly swell diminishes.

Rip currents will be life threatening. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Rip Current Statement issued January 30 at 4:20PM ChST until February 2 at 4:00PM ChST by NWS Tiyan GU

Effective: Fri January 30, 2026, 4:20 PM
Expires: Sat January 31, 2026, 7:30 AM

* WHAT...Large breaking waves of 7 to 10 feet and dangerous rip currents. * WHERE...High Surf for north facing reefs of the Marianas. High Risk of Rip Currents for north and east facing reefs. * WHEN...From 4 PM Saturday to 4 PM ChST Monday. * IMPACTS...Dangerous swimming and surfing conditions and localized beach erosion. Rip currents can sweep even the best swimmers away from shore into deeper water. * ADDITIONAL DETAILS...Surf is already elevated due to a complex mixture of swells moving through the region, generated by distant systems. As a shear line descends into the islands and a pulse of northerly swell moves into the region, hazardous surf around 9 feet for north facing reefs and dangerous rip currents along north and east facing reefs are expected to develop. Surf is expected to peak around 10 feet Sunday before slowly decreasing Sunday night and Monday as the shear line weakens and the northerly swell diminishes.

Rip currents will be life threatening. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.


Friday, January 30, 2026

Weather Forecast

Patchy rain nearby
82.9°F
79.7°F
81.1°F
78%
0.1 in
86%
0%
14.8 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 4.43 μg/m3
PM10: 6.47 μg/m3
Carbon Monoxide: 118.41 μg/m3
Nitrogen Dioxide: 1.02 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 44.08 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:34 AM
Sunset: 6:21 PM
Daylight: 11 hrs 32 mins
Moonrise: 3:34 PM
Moon Transit: 10:20 PM
Moonset: 4:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.4%

Best Times for Fishing or Hunting

Major Periods

4:54 PM - 7:24 PM
12:00 AM - 12:00 AM

Minor Periods

3:04 PM - 4:34 PM
3:32 AM - 5:02 AM

Action Rating: 2 out of 5

Saturday, January 31, 2026

Weather Forecast

Patchy rain nearby
82°F
79.5°F
80.7°F
80%
0.14 in
88%
0%
19.9 mph
2.5


Air Quality

AQI: 1 - Good
PM2.5: 5.79 μg/m3
PM10: 8.98 μg/m3
Carbon Monoxide: 124.49 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 50.68 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:34 AM
Sunset: 6:21 PM
Daylight: 11 hrs 33 mins
Moonrise: 4:40 PM
Moon Transit: 11:22 PM
Moonset: 5:05 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.9%

Best Times for Fishing or Hunting

Major Periods

5:57 PM - 8:27 PM
12:00 AM - 12:00 AM

Minor Periods

4:10 PM - 5:40 PM
4:35 AM - 6:05 AM

Action Rating: 3 out of 5

Sunday, February 1, 2026

Weather Forecast

Moderate rain
81.3°F
80°F
80.5°F
81%
0.31 in
89%
0%
21.9 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 9.55 μg/m3
PM10: 14.57 μg/m3
Carbon Monoxide: 138.57 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 70.04 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:34 AM
Sunset: 6:22 PM
Daylight: 11 hrs 33 mins
Moonrise: 5:44 PM
Moon Transit: 12:00 AM
Moonset: 6:02 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:56 PM - 9:26 PM

Minor Periods

5:14 PM - 6:44 PM
5:32 AM - 7:02 AM

Action Rating: 5 out of 5

Monday, February 2, 2026

Weather Forecast

Moderate rain
81.7°F
78.8°F
80.4°F
82%
0.34 in
86%
0%
23 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 8.71 μg/m3
PM10: 13.76 μg/m3
Carbon Monoxide: 113.54 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 52.2 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:35 AM
Sunset: 6:22 PM
Daylight: 11 hrs 34 mins
Moonrise: 6:44 PM
Moon Transit: 12:20 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 99.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:50 PM - 10:20 PM

Minor Periods

6:14 PM - 7:44 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Tuesday, February 3, 2026

Weather Forecast

Heavy rain
81.7°F
77.9°F
80.1°F
85%
0.96 in
84%
0%
19.7 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 8.61 μg/m3
PM10: 13.42 μg/m3
Carbon Monoxide: 95.37 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 34.23 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:35 AM
Sunset: 6:23 PM
Daylight: 11 hrs 35 mins
Moonrise: 7:40 PM
Moon Transit: 1:13 AM
Moonset: 7:39 AM
Moon Phase: Full
Moon Illumination: 96.3%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
8:39 PM - 11:09 PM

Minor Periods

7:10 PM - 8:40 PM
7:09 AM - 8:39 AM

Action Rating: 4 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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