30.06
tue
tue
Day
86°F
W 7 mph
Precip.
16%
16%
Night
82°F
W 9 mph
Precip.
12%
12%
01.07
wed
wed
Day
86°F
W 11 mph
Precip.
17%
17%
Night
82°F
W 9 mph
Precip.
24%
24%
02.07
thu
thu
Day
84°F
SW 7 mph
Precip.
17%
17%
Night
82°F
SW 7 mph
Precip.
9%
9%
03.07
fri
fri
Day
84°F
SW 9 mph
Precip.
57%
57%
Night
81°F
SW 5 mph
Precip.
8%
8%
04.07
sat
sat
Day
84°F
SW 4 mph
Precip.
23%
23%
Night
82°F
NE 6 mph
Precip.
13%
13%
05.07
sun
sun
Day
84°F
S 6 mph
Precip.
36%
36%
Night
82°F
E 22 mph
Precip.
69%
69%
06.07
mon
mon
Day
86°F
SE 8 mph
Precip.
27%
27%
Night
82°F
E 8 mph
Precip.
38%
38%
Sea water temperature in June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 84.5°F. The highest and lowest sea temperatures during the month were 85.1°F and 83.8°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.
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: 03:39
June 30, tuesday
0600
81°F
W
6 mph
6 mph
0900
84°F
W
7 mph
7 mph
1200
86°F
W
7 mph
7 mph
1500
86°F
W
8 mph
8 mph
1800
84°F
W
9 mph
9 mph
2100
82°F
W
8 mph
8 mph
July 01, wednesday
0000
82°F
W
9 mph
9 mph
0300
81°F
W
9 mph
9 mph
