World Resorts Northern Mariana Islands Guam Weather

Guam Sea Temperature in May

Average sea water temperature in May:
+84.1°F
Minimum sea water temperature in May: 86.7°F
Maximum sea water temperature in May: 81.9°F

Daily sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 82.7°F. The highest and lowest sea temperatures during the month were 83.5°F and 82.0°F.

Monthly sea water temperature in Guam, °F

Which Northern Mariana Islands resorts have warmest sea in May?

Place name May 2026 May 2025
Saipan 83.4°F 84.5°F
Susupe 83.4°F 84.5°F
Rota 83.3°F 84.7°F
Tinian 83.3°F 84.5°F
Guam 82.7°F 84.3°F

Best time for vacation in Guam

Sunniest months:
July 5 days
August 5 days
September 5 days
Warmest months:
June 87.5 °F
July 87.3 °F
August 87.0 °F
Warmest sea temp:
August 85.5 °F
September 85.4 °F
July 85.3 °F
Coldest months:
February 83.1 °F
January 83.8 °F
March 84.0 °F
Rainiest months:
October 15 days
August 14 days
September 14 days
Windiest months:
February 17.3 mph
December 17.2 mph
January 16.5 mph

Guam on a weather map

Current weather
09:03
Guam
+82°F
W 19 mph
Feels like: +90°F
Precip.: 100%
Places in Northern Mariana Islands:
Name
°F
Guam
+82°F
Rota
+82°F
Saipan
+82°F
Susupe
+82°F
Tinian
+82°F
24 Hours Forecast
Guam
Local time: 09:03
May 19, tuesday
1200
84°F
W
19 mph
1500
84°F
W
18 mph
1800
82°F
W
17 mph
2100
81°F
W
17 mph
May 20, wednesday
0000
81°F
W
17 mph
0300
81°F
W
18 mph
0600
81°F
W
17 mph
0900
82°F
W
18 mph
Units of measurement: °C / °F