29.04
wed
wed
Day
82°F
W 19 mph
Precip.
70%
70%
Night
81°F
W 17 mph
Precip.
100%
100%
30.04
thu
thu
Day
82°F
W 18 mph
Precip.
63%
63%
Night
79°F
W 12 mph
Precip.
0%
0%
01.05
fri
fri
Day
82°F
W 14 mph
Precip.
81%
81%
Night
79°F
W 11 mph
Precip.
0%
0%
02.05
sat
sat
Day
82°F
W 15 mph
Precip.
87%
87%
Night
81°F
W 15 mph
Precip.
74%
74%
03.05
sun
sun
Day
82°F
W 16 mph
Precip.
49%
49%
Night
81°F
W 14 mph
Precip.
100%
100%
04.05
mon
mon
Day
82°F
W 17 mph
Precip.
75%
75%
Night
81°F
W 15 mph
Precip.
100%
100%
05.05
tue
tue
Day
82°F
SW 17 mph
Precip.
100%
100%
Night
81°F
SW 16 mph
Precip.
75%
75%
Sea water temperature in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 82.0°F. The highest and lowest sea temperatures during the month were 82.9°F and 80.6°F.
Sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.3°F and 83.8°F.
Air temperature in Guam, °F
Precipitation total in Guam, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Guam
Guam on a weather map
Places in Northern Mariana Islands:
Name
°F
24 Hours Forecast
Guam
Local time: 00:55
April 29, wednesday
0300
79°F
W
17 mph
17 mph
0600
81°F
W
17 mph
17 mph
0900
81°F
W
17 mph
17 mph
1200
82°F
W
19 mph
19 mph
1500
82°F
W
17 mph
17 mph
1800
81°F
W
17 mph
17 mph
2100
81°F
W
17 mph
17 mph
April 30, thursday
0000
81°F
W
17 mph
17 mph
