Measurements:
°C
°F
Guam
82°F
NE 48 mph
Feels like: 88°F
Precip: 87%
World Resorts Northern Mariana Islands Guam Weather June Weather in Guam

Guam Weather: June

Average Day Temperature: 91.4°F
Average Night Temperature: 86.3°F
Sea Water Temperature: 88.9°F
Number of Sunny Days: 4 days
Sunshine Hours: 12.9 - 12.9 hours
Number of Rainy Days: 7 days
Precipitation Totals: 4.3 in

Air Temperature in June, °F

Select Year: 2026 2025 2024

The highest day temperature in June 2026 was 90°F. The lowest night temperature was 83°F. The average values for day and night temperatures during June were 88.7°F и 84.6°F respectivly.

Guam Water Sea Temperature in June, °F

Select Year: 2026 2025 2024

The average sea surface temperature in June 2026 for Guam was 88.4°F. The maximum and minimum values were 87.6°F and 89.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in June are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in June, in

Precipitation total in June for Guam is 4.3 in.

Wind Speed in June, mph

The average wind speed in June is 11.7 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Guam in June is 6.5 hours.

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

Guam on the Weather Map

Northern Mariana Islands Resorts:
NAME
Guam +82
Rota +82
Saipan +86
Susupe +86
Tinian +86
24 Hours Weather Forecast
Guam
Local time: 18:25
06 jul, monday
2100 86°F
NE
40 mph
07 jul, tuesday
0000 86°F
N
34 mph
0300 86°F
N
32 mph
0600 86°F
N
29 mph
0900 86°F
N
25 mph
1200 88°F
N
25 mph
1500 88°F
N
23 mph
1800 86°F
N
21 mph