Measurements:
°C
°F
CURRENT WEATHER
19:26
Guam
88°F
W 11 mph
Feels like: 98°F
Precip: 13%
World Resorts Northern Mariana Islands Guam Weather

7 Day Weather Forecast

07.27
mon
DAY
88°F
W 14 mph
precip
22%
NIGHT
86°F
W 7 mph
precip
21%
07.28
tue
DAY
90°F
SW 6 mph
precip
8%
NIGHT
84°F
W 5 mph
precip
65%
07.29
wed
DAY
90°F
NW 8 mph
precip
8%
NIGHT
84°F
N 6 mph
precip
11%
07.30
thu
DAY
88°F
N 7 mph
precip
16%
NIGHT
84°F
N 2 mph
precip
17%
07.31
fri
DAY
88°F
NE 4 mph
precip
20%
NIGHT
84°F
S 5 mph
precip
29%
08.01
sat
DAY
86°F
NE 2 mph
precip
14%
NIGHT
86°F
SE 7 mph
precip
11%
08.02
sun
DAY
88°F
E 12 mph
precip
6%
NIGHT
86°F
E 11 mph
precip
55%

Guam Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Guam was 29.2°F. The maximum and minimum values were 28.4°F and 29.9°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:
June 91.4 °F
July 91.2 °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