Weather & Climate at Fort Buchanan Army Base in Guaynabo, PR

Summary of the weather and climate in Guaynabo, PR:

  • The average high in Guaynabo, PR is 87.6°F and average low is 70.4°F
  • The hottest month is August with an high of 90.3°F
  • The coldest month is February with an low of 66.5°F
  • Annual rainfall is 70.78 inches. The rainiest month is November with an average of 8.06 inches.

SOURCE: NOAA.GOV

Climate Table — Fort Buchanan Army Base

Monthly Averages:

High (°F)Low (°F)Rainfall (inches)Snowfall (inches)
January 84.3 66.8 4.79 0
February 84.7 66.5 3.19 0
March 86.1 67.2 3.52 0
April 86.9 68.8 5.8 0
May 88.3 71.5 7.17 0
June 89.9 72.9 4.54 0
July 89.6 73.3 6.7 0
August 90.3 73.6 6.44 0
September 90 73.1 7.39 0
October 89.3 72.5 6.79 0
November 86.7 70.6 8.06 0
December 84.8 68.3 6.39 0

Climate Charts — Fort Buchanan Army Base

Weather through the year:



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** Document Provided By MilBases.com **
Source: https://www.milbases.com/puerto-rico/fort-buchanan-army-base/weather