Water Temperature of Apra Harbor in Santa Rita, GU

Current Water Temperature

85.8°F

Measurement Time: Monday, October 12, 2026, 9:00 AM ChST

Today's Tides

Low: October 12, 2:23 AM, 0.0 ft
 High: October 12, 8:55 AM, 2.3 ft
Low: October 12, 2:39 PM, 1.1 ft
 High: October 12, 7:57 PM, 2.3 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

81.5°F
Patchy rain nearby
Conditions: Patchy rain nearby
Humidity: 81%
Feels Like: 87.6°F
Wind: WSW 4.7 mph
Wind Gusts: 5.6 mph
Pressure: 29.91 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 3.5

Weather Forecast

Overcast
Mon
H: 83°F
L: 79°F
Patchy rain nearby
Tue
H: 84°F
L: 78°F
Patchy rain nearby
Wed
H: 83°F
L: 78°F
Patchy rain nearby
Thu
H: 83°F
L: 78°F
Overcast
Fri
H: 83°F
L: 79°F

Air Quality

PM2.5: 3.7 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 130 μg/m3
Nitrogen Dioxide: 0.1 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 23 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:04 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:14 AM
Moon Transit: 1:07 PM
Moonset: 6:59 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:45 AM - 10:15 AM
12:37 AM - 3:07 PM

Minor Periods

6:29 PM - 7:59 PM
6:44 AM - 8:14 AM

Action Rating: 4 out of 5

Monday, October 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 80.9°F
Average Humidity: 79%
Chance of Rain: 65%
Wind: 7.8 mph
UV Index: 11.1

Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 5.65 μg/m3
Carbon Monoxide: 128.46 μg/m3
Nitrogen Dioxide: 0.16 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 24 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:04 PM
Daylight: 11 hrs 53 mins
Moonrise: 7:14 AM
Moon Transit: 1:07 PM
Moonset: 6:59 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:45 AM - 10:15 AM
12:37 AM - 3:07 PM

Minor Periods

6:29 PM - 7:59 PM
6:44 AM - 8:14 AM

Action Rating: 4 out of 5

Tuesday, October 13, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 80.7°F
Average Humidity: 79%
Chance of Rain: 46%
Wind: 6.3 mph
UV Index: 11.2

Air Quality

AQI: 1 - Good
PM2.5: 1.54 μg/m3
PM10: 2.6 μg/m3
Carbon Monoxide: 116.92 μg/m3
Nitrogen Dioxide: 0.15 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 29.38 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:04 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:06 AM
Moon Transit: 1:55 PM
Moonset: 7:43 PM
Moon Phase: New
Moon Illumination: 4.0%

Best Times for Fishing or Hunting

Major Periods

8:33 AM - 11:03 AM
1:25 PM - 3:55 PM

Minor Periods

7:13 PM - 8:43 PM
7:36 AM - 9:06 AM

Action Rating: 3 out of 5

Wednesday, October 14, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.9°F
Average Humidity: 79%
Chance of Rain: 28%
Wind: 8.1 mph
UV Index: 7

Air Quality

AQI: 1 - Good
PM2.5: 1.64 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 111.67 μg/m3
Nitrogen Dioxide: 0.11 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 29.13 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:03 PM
Daylight: 11 hrs 51 mins
Moonrise: 8:59 AM
Moon Transit: 2:45 PM
Moonset: 8:29 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.6%

Best Times for Fishing or Hunting

Major Periods

9:22 AM - 11:52 AM
2:15 PM - 4:45 PM

Minor Periods

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

Action Rating: 2 out of 5

Thursday, October 15, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 79.9°F
Average Humidity: 82%
Chance of Rain: 37%
Wind: 10.5 mph
UV Index: 6

Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 7.24 μg/m3
Carbon Monoxide: 124.74 μg/m3
Nitrogen Dioxide: 0.06 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 36.87 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:02 PM
Daylight: 11 hrs 50 mins
Moonrise: 9:53 AM
Moon Transit: 3:36 PM
Moonset: 9:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 17.2%

Best Times for Fishing or Hunting

Major Periods

10:13 AM - 12:43 AM
3:06 PM - 5:36 PM

Minor Periods

8:48 PM - 10:18 PM
9:23 AM - 10:53 AM

Action Rating: 3 out of 5

Friday, October 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 80.5°F
Average Humidity: 84%
Chance of Rain: 45%
Wind: 10.3 mph
UV Index: 7

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: 6:12 AM
Sun Transit: 12:07 AM
Sunset: 6:02 PM
Daylight: 11 hrs 50 mins
Moonrise: 10:46 AM
Moon Transit: 4:27 PM
Moonset: 10:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 26.6%

Best Times for Fishing or Hunting

Major Periods

11:04 AM - 1:34 PM
3:57 PM - 6:27 PM

Minor Periods

9:40 PM - 11:10 PM
10:16 AM - 11:46 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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