Measurements:
°C
°F
CURRENT WEATHER
17:24
Guam
82°F
NE 48 mph
Feels like: 88°F
Precip: 87%
World Resorts Northern Mariana Islands Guam Weather

7 Day Weather Forecast

07.06
mon
DAY
82°F
NE 60 mph
precip
94%
NIGHT
86°F
N 34 mph
precip
39%
07.07
tue
DAY
88°F
N 25 mph
precip
53%
NIGHT
86°F
N 19 mph
precip
29%
07.08
wed
DAY
86°F
N 16 mph
precip
18%
NIGHT
84°F
N 15 mph
precip
66%
07.09
thu
DAY
88°F
NW 2 mph
precip
12%
NIGHT
86°F
SW 7 mph
precip
9%
07.10
fri
DAY
88°F
SW 8 mph
precip
7%
NIGHT
86°F
SW 9 mph
precip
17%
07.11
sat
DAY
88°F
SW 11 mph
precip
10%
NIGHT
86°F
SW 7 mph
precip
10%
07.12
sun
DAY
88°F
SW 9 mph
precip
19%
NIGHT
86°F
W 9 mph
precip
15%

Guam Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Guam was 29.3°F. The maximum and minimum values were 28.7°F and 29.7°F respectively.

Guam on the Weather Map

Best Time to Visit Guam
The most sunny months:
July 5 days
August 5 days
September 5 days
The most warm months:
July 91.5 °F
June 91.4 °F
August 91.1 °F
Warmest sea temperature:
August 89.4 °F
September 89.4 °F
July 89.2 °F
The most cold months:
February 86.8 °F
January 87.5 °F
March 87.8 °F
The most rainy months:
October 15 days
August 14 days
September 14 days
The most windy months:
February 17 mph
December 17 mph
January 16 mph
more details