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Guam Weather Records

Guam weather data and records from 1957–2022 based on data compiled by the NOAA.
All data displayed in U.S. customary units.
All data displayed in metric units.
All-Time Recorded High
The highest temperature ever recorded in Guam was 95.0 °F35.0 °C which occurred on September 19, 1957.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Guam was 54.0 °F12.2 °C which occurred on March 14, 1965.
Lowest Temperatures: All-Time By Year
Guam Weather by Month
Averages based on the years 1991–2020
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
☀️ Average high (°F°C) 85.729.8 85.729.8 86.730.4 87.931.1 88.531.4 88.531.4 87.730.9 87.030.5 87.030.6 87.230.7 87.430.8 86.630.3 87.230.6
🌙 Average low (°F°C) 75.023.9 74.623.7 75.424.1 76.724.8 77.525.3 77.725.4 76.824.9 76.124.5 76.024.4 76.324.6 77.025.0 76.524.7 76.324.6
☀️ Record high (°F°C) 90.032.2 90.032.2 91.933.3 93.033.9 93.033.9 93.934.4 93.934.4 91.933.3 95.035.0 93.033.9 91.933.3 91.032.8 95.035.0
🌙 Record low (°F°C) 55.913.3 59.015.0 54.012.2 59.015.0 62.116.7 63.017.2 64.017.8 63.017.2 61.016.1 64.017.8 62.116.7 61.016.1 54.012.2
💧 Average precipitation (inchescm) 5.313.6 4.110.5 2.87.0 3.38.3 4.511.3 6.616.9 12.331.1 17.744.9 15.238.5 12.732.3 8.321.0 6.015.2 98.7250.8
💧 Daily % chance precipitation 64.9 63.0 59.1 63.1 63.4 77.3 83.9 83.4 83.8 82.0 79.4 73.5 73.1
❄️ Average snow (inchescm) 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0 0.00.0
More Guam Weather Records
1957–2022
Highest daily low 84.0 °F28.9 °C July 28, 2013
Lowest daily high 75.0 °F23.9 °C January 25, 1976
Most daily precipitation 19.7 inches50.0 cm December 8, 2002
Most monthly precipitation 38.5 inches97.8 cm August 1997
Most yearly precipitation 139.1 inches353.3 cm 2002
Most daily snow none -
Guam Weather Streaks
Most consecutive days...
With precipitation 53 days Aug 7 – Sep 28, 1990
Without precipitation 22 days Mar 9–30, 1965
High temperature ≥ 80 °F27 °C 1953 days Sep 22, 2008 – Jan 26, 2014
High temperature ≥ 90 °F32 °C 16 days May 15–30, 2013
Guam Weather by Year
1957 1958 1959 1960 1961 1962 1963 1964 1965 1966
1967 1968 1969 1970 1971 1972 1973 1974 1975 1976
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986
1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
2017 2018 2019 2020 2021 2022
More
Weather Station Details
Years Station Coordinates
1957–2022 Guam International Airport location
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