World Resorts Northern Mariana Islands Guam Weather

Guam 7 Days Forecast

08.06
mon
Day
84°F
W 12 mph
Precip.
1%
Night
82°F
W 8 mph
Precip.
73%
09.06
tue
Day
86°F
W 12 mph
Precip.
11%
Night
82°F
W 9 mph
Precip.
6%
10.06
wed
Day
86°F
W 12 mph
Precip.
8%
Night
82°F
W 10 mph
Precip.
4%
11.06
thu
Day
86°F
W 12 mph
Precip.
6%
Night
82°F
W 9 mph
Precip.
18%
12.06
fri
Day
84°F
W 6 mph
Precip.
11%
Night
81°F
W 5 mph
Precip.
12%
13.06
sat
Day
84°F
W 7 mph
Precip.
1%
Night
81°F
W 6 mph
Precip.
2%
14.06
sun
Day
84°F
W 8 mph
Precip.
1%
Night
81°F
W 7 mph
Precip.
5%

Sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 85.1°F. The highest and lowest sea temperatures during the month were 85.6°F and 84.4°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

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
15:34
Guam
+84°F
W 11 mph
Feels like: +91°F
Precip.: 2%
Places in Northern Mariana Islands:
Name
°F
Guam
+84°F
Rota
+82°F
Saipan
+84°F
Susupe
+84°F
Tinian
+84°F
24 Hours Forecast
Guam
Local time: 15:34
June 08, monday
1800
82°F
W
11 mph
2100
82°F
W
9 mph
June 09, tuesday
0000
82°F
W
8 mph
0300
81°F
W
7 mph
0600
81°F
W
8 mph
0900
84°F
W
11 mph
1200
86°F
W
12 mph
1500
84°F
W
12 mph
Units of measurement: °C / °F