Measurements:
°C
°F
CURRENT WEATHER
06:30
Guam
84°F
W 18 mph
Feels like: 92°F
Precip: 0%
World Resorts Northern Mariana Islands Guam Weather

7 Day Weather Forecast

01.11
sun
DAY
86°F
W 17 mph
precip
65%
NIGHT
84°F
W 16 mph
precip
63%
01.12
mon
DAY
86°F
W 17 mph
precip
86%
NIGHT
84°F
W 17 mph
precip
100%
01.13
tue
DAY
86°F
W 20 mph
precip
86%
NIGHT
84°F
W 16 mph
precip
80%
01.14
wed
DAY
86°F
W 18 mph
precip
100%
NIGHT
84°F
W 15 mph
precip
76%
01.15
thu
DAY
86°F
W 16 mph
precip
100%
NIGHT
84°F
W 14 mph
precip
100%
01.16
fri
DAY
86°F
W 13 mph
precip
100%
NIGHT
84°F
W 12 mph
precip
82%
01.17
sat
DAY
86°F
W 13 mph
precip
0%
NIGHT
84°F
W 8 mph
precip
100%

Guam Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Guam was 28.5°F. The maximum and minimum values were 28.3°F and 28.8°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 91.6 °F
July 91.5 °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 86.9 °F
January 87.6 °F
March 88.0 °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 17 mph
more details