World Resorts Northern Mariana Islands Guam Weather

Guam Sea Temperature in January

Average sea water temperature in January:
+82.8°F
Minimum sea water temperature in January: 84.4°F
Maximum sea water temperature in January: 80.1°F

Daily sea water temperature in January, °F

Show year:
2025
2024
2023
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78
80
82
84
86
88

The average sea water temperature in January of 2025 was 83.4°F. The highest and lowest sea temperatures during the month were 83.8°F and 82.9°F.

Monthly sea water temperature in Guam, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
83.8
84.6
85.2
85.5
85.5
85.4
85.1
84.2
83.1
82.2
82.1
82.8

Which Northern Mariana Islands resorts have warmest sea in January?

Place name January 2025 January 2024
Rota 83.6°F 83.2°F
Tinian 83.6°F 82.9°F
Saipan 83.5°F 82.8°F
Susupe 83.5°F 82.8°F
Guam 83.4°F 83.2°F

Best time for vacation in Guam

Sunniest months:
July 6 days
August 5 days
June 5 days
Warmest months:
June 87.7 °F
July 87.6 °F
August 87.2 °F
Warmest sea temp:
August 85.5 °F
September 85.5 °F
July 85.4 °F
Coldest months:
February 83.2 °F
January 83.9 °F
March 84.2 °F
Rainiest months:
October 16 days
July 14 days
August 14 days
Windiest months:
February 17.4 mph
December 17.3 mph
January 16.8 mph

Guam on a weather map

Leaflet | Tiles © Esri
Places in Northern Mariana Islands:
Name
°F
Guam
+81°F
Rota
+82°F
Saipan
+82°F
Susupe
+82°F
Tinian
+82°F
24 Hours Forecast
Guam
Local time: 00:14
April 30, wednesday
0300
81°F
W
15 mph
0600
81°F
W
16 mph
0900
84°F
W
17 mph
1200
82°F
W
16 mph
1500
84°F
W
16 mph
1800
82°F
W
14 mph
2100
82°F
W
14 mph
May 01, thursday
0000
82°F
W
14 mph
Units of measurement: °C / °F