Measurements:
°C
°F
CURRENT WEATHER
15:28
Guam
80°F
NE 22 mph
Feels like: 88°F
Precip: 100%
World Resorts Northern Mariana Islands Guam Weather

7 Day Weather Forecast

03.13
fri
DAY
82°F
NE 17 mph
precip
100%
NIGHT
80°F
NE 12 mph
precip
0%
03.14
sat
DAY
84°F
SE 17 mph
precip
100%
NIGHT
82°F
SE 16 mph
precip
89%
03.15
sun
DAY
80°F
SE 17 mph
precip
61%
NIGHT
80°F
SE 12 mph
precip
0%
03.16
mon
DAY
82°F
S 10 mph
precip
100%
NIGHT
78°F
S 14 mph
precip
100%
03.17
tue
DAY
80°F
SW 16 mph
precip
67%
NIGHT
80°F
SW 16 mph
precip
79%
03.18
wed
DAY
82°F
SW 14 mph
precip
22%
NIGHT
80°F
SW 13 mph
precip
47%
03.19
thu
DAY
84°F
SW 13 mph
precip
71%
NIGHT
80°F
W 13 mph
precip
100%

Guam Sea Water Temperature in March, °F

Select Year: 2025 2024 2023

The average sea surface temperature in March 2025 for Guam was 28.1°F. The maximum and minimum values were 27.7°F and 28.3°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 86.8 °F
January 87.5 °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 16 mph
more details