Current sea water temperature:
+82.4°F
| Minimum sea water temperature in February: | 83.7°F |
| Maximum sea water temperature in February: | 80.2°F |
| Average sea water temperature in February: | 82.2°F |
| more information | |
14 days
forecast
forecast
| Guam |
monthly
weather
weather
| Guam |
Sea water temperature for the last 10 days:
| February 25 | 82.4°F | February 20 | 83.1°F |
| February 24 | 82.8°F | February 19 | 82.9°F |
| February 23 | 83.1°F | February 18 | 82.8°F |
| February 22 | 83.3°F | February 17 | 82.8°F |
| February 21 | 83.1°F | February 16 | 82.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Guam?
Based on the data about daily sea water temperature for the last three years the warmest sea in Guam was noticed in August, September and July.
Monthly Sea Temperatures in Guam, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 85.8°F and 84.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 85.5°F and 83.7°F.
current
weather
weather
| Guam |
weather in
March
March
| Guam |
Best time for vacation in Guam
Guam on a weather map
Places in Northern Mariana Islands:
Name
°F
24 Hours Forecast
Guam
Local time: 10:28
February 26, thursday
1200
81°F
W
23 mph
23 mph
1500
81°F
W
22 mph
22 mph
1800
79°F
W
22 mph
22 mph
2100
79°F
W
22 mph
22 mph
February 27, friday
0000
79°F
W
21 mph
21 mph
0300
79°F
W
19 mph
19 mph
0600
79°F
W
16 mph
16 mph
0900
81°F
W
18 mph
18 mph
