Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

83.8°F

Measurement Time: Monday, April 13, 2026, 1:42 AM ChST

Today's Tides

 High: April 13, 5:16 AM, 2.2 ft
Low: April 13, 10:58 AM, 1.3 ft
 High: April 13, 4:03 PM, 2.0 ft
Low: April 13, 10:46 PM, 0.3 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

81°F
Overcast
Overcast
89.2°F
86.5°F
79%
NNE 27.3 mph
40.1 mph
79.7°F
75.8°F
0.03 in
100%
9 mi
1004 mbar
0

Five Day Weather Forecast

Heavy rain
Mon
H: 81°F
L: 79°F
Heavy rain
Tue
H: 81°F
L: 79°F
Heavy rain
Wed
H: 81°F
L: 80°F
Moderate rain
Thu
H: 83°F
L: 80°F
Patchy rain nearby
Fri
H: 83°F
L: 80°F

Air Quality

PM2.5: 9.55 μg/m3
PM10: 15.45 μg/m3
Carbon Monoxide: 148.85 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:22 AM
Sunset: 6:34 PM
Daylight: 12 hrs 24 mins
Moonrise: 2:51 AM
Moon Transit: 8:45 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

8:15 AM - 10:45 AM
3:23 AM - 5:53 AM

Minor Periods

2:13 PM - 3:43 PM
2:21 AM - 3:51 AM

Action Rating: 3 out of 5

Flood Watch issued April 12 at 9:08PM ChST until April 15 at 10:00AM ChST by NWS Tiyan GU

Effective: Sun April 12, 2026, 9:08 PM
Expires: Mon April 13, 2026, 1:15 PM

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Guam, Rota, Saipan and Tinian. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - - Typhoon Sinlaku is expected to approach the Marianas over the next 24 to 36 hours, crossing the islands on Tuesday, with rainfall amounts upwards of 15 to 20 inches possible near the center. - With a further north track, 6 to 12 inches, with locally higher amounts, are more probable for Guam. - Http://www.weather.gov/safety/flood - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Monday, April 13, 2026

Weather Forecast

Heavy rain
80.7°F
79°F
79.8°F
90%
3.51 in
95%
0%
89.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 5.43 μg/m3
PM10: 8.5 μg/m3
Carbon Monoxide: 132.01 μg/m3
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 58.88 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:22 AM
Sunset: 6:34 PM
Daylight: 12 hrs 24 mins
Moonrise: 2:51 AM
Moon Transit: 8:45 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

8:15 AM - 10:45 AM
3:23 AM - 5:53 AM

Minor Periods

2:13 PM - 3:43 PM
2:21 AM - 3:51 AM

Action Rating: 3 out of 5

Tuesday, April 14, 2026

Weather Forecast

Heavy rain
80.6°F
79.1°F
80°F
90%
7.99 in
87%
0%
98.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.35 μg/m3
PM10: 8.23 μg/m3
Carbon Monoxide: 135.61 μg/m3
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 69.56 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:21 AM
Sunset: 6:35 PM
Daylight: 12 hrs 25 mins
Moonrise: 3:30 AM
Moon Transit: 9:31 AM
Moonset: 3:35 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
9:01 AM - 11:31 AM

Minor Periods

3:05 PM - 4:35 PM
3:00 AM - 4:30 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Heavy rain
81°F
80.1°F
80.6°F
87%
1.11 in
83%
0%
48.5 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 10.77 μg/m3
Carbon Monoxide: 143.45 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 77.04 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:21 AM
Sunset: 6:35 PM
Daylight: 12 hrs 26 mins
Moonrise: 4:10 AM
Moon Transit: 12:00 AM
Moonset: 4:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:55 AM - 7:25 AM

Minor Periods

3:58 PM - 5:28 PM
3:40 AM - 5:10 AM

Action Rating: 2 out of 5

Thursday, April 16, 2026

Weather Forecast

Moderate rain
82.8°F
80°F
81°F
84%
0.29 in
88%
0%
30.9 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 5.11 μg/m3
PM10: 7.65 μg/m3
Carbon Monoxide: 135.67 μg/m3
Nitrogen Dioxide: 1.07 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 62.46 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:21 AM
Sunset: 6:35 PM
Daylight: 12 hrs 27 mins
Moonrise: 4:50 AM
Moon Transit: 1:33 AM
Moonset: 5:22 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

1:03 AM - 3:33 AM
1:03 AM - 3:33 AM

Minor Periods

4:52 PM - 6:22 PM
4:20 AM - 5:50 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Patchy rain nearby
83.4°F
79.9°F
81.2°F
82%
0.09 in
89%
0%
21 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: 6:08 AM
Sun Transit: 12:21 AM
Sunset: 6:35 PM
Daylight: 12 hrs 27 mins
Moonrise: 5:32 AM
Moon Transit: 11:54 AM
Moonset: 6:20 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

6:31 AM - 9:01 AM
11:24 AM - 1:54 PM

Minor Periods

5:50 PM - 7:20 PM
5:02 AM - 6:32 AM

Action Rating: 5 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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