Measurements:
°C
°F
Guam
84°F
W 9 mph
Feels like: 92°F
Precip: 100%
World Resorts Northern Mariana Islands Guam Weather

Guam Sea Water Temperature

Current Sea Water Temperature:
+87.0°F
Maximum Sea Water Temperature in April: 88.8°F
Minimum Sea Water Temperature in April: 84.8°F
Average water temperature in April: 86.7°F

Sea Water Temperature for the Last 10 Days:

April 25 87.0°F April 20 86.8°F
April 24 87.2°F April 19 86.4°F
April 23 87.0°F April 18 86.8°F
April 22 87.0°F April 17 86.6°F
April 21 87.0°F April 16 86.6°F

When is the Warmest Sea for Guam?

According to our data for the last three years for Guam the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for Guam was 89.3°F. The maximum and minimum values were 88.0°F and 90.6°F respectively.

Sea Water Temperature in September

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Guam was 89.0°F. The maximum and minimum values were 88.0°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2023 2022 2021

The average sea surface temperature in July 2023 for Guam was 89.1°F. The maximum and minimum values were 88.4°F and 89.8°F respectively.

Best Time to Visit Guam
The most sunny months:
July 6 days
August 5 days
September 5 days
The most warm months:
June 92.1 °F
July 92.0 °F
August 91.5 °F
Warmest sea temperature:
August 89.4 °F
September 89.4 °F
July 89.3 °F
The most cold months:
February 87.0 °F
January 87.7 °F
March 88.1 °F
The most rainy months:
October 16 days
August 15 days
September 15 days
The most windy months:
December 17 mph
February 17 mph
January 17 mph

Guam on the Weather Map

Northern Mariana Islands Resorts:
NAME
Guam +84
Rota +84
Saipan +86
Susupe +86
Tinian +86
24 Hours Weather Forecast
Guam
Local time: 21:58
26 apr, friday
0000 84°F
W
14 mph
0300 84°F
W
12 mph
0600 84°F
W
14 mph
0900 86°F
W
17 mph
1200 88°F
W
19 mph
1500 88°F
W
17 mph
1800 86°F
W
17 mph
2100 84°F
W
18 mph