San Juan Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in San Juan, Puerto Rico, based on NOAA data.
Also see:
What's the hottest day of the year in San Juan?
On average, August 20 is the hottest day of the year San Juan, Puerto Rico. From 1991–2020, the average high temperature on August 20 was 89.3 °F and the average low was 77.8 °F.
What's the coldest day of the year in San Juan?
On average, January 24 is the coldest day of the year San Juan, Puerto Rico. From 1991–2020, the average high temperature on January 24 was 83.3 °F, and the average low was 71.6 °F.
Average Temperature by Day
  • Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day Average (°F)
High Low
January 1 83.7 72.5
January 2 83.7 72.5
January 3 83.6 72.4
January 4 83.6 72.4
January 5 83.5 72.3
January 6 83.5 72.3
January 7 83.5 72.2
January 8 83.4 72.2
January 9 83.4 72.1
January 10 83.4 72.1
January 11 83.4 72.1
January 12 83.4 72.0
January 13 83.4 72.0
January 14 83.4 71.9
January 15 83.4 71.9
January 16 83.4 71.9
January 17 83.4 71.8
January 18 83.4 71.8
January 19 83.3 71.8
January 20 83.3 71.7
January 21 83.3 71.7
January 22 83.3 71.7
January 23 83.3 71.6
January 24 83.3 71.6
January 25 83.4 71.6
January 26 83.4 71.6
January 27 83.4 71.6
January 28 83.5 71.6
January 29 83.5 71.6
January 30 83.6 71.6
January 31 83.6 71.7
February 1 83.6 71.7
February 2 83.7 71.7
February 3 83.7 71.7
February 4 83.8 71.7
February 5 83.7 71.7
February 6 83.7 71.7
February 7 83.7 71.7
February 8 83.7 71.7
February 9 83.8 71.7
February 10 83.8 71.7
February 11 83.8 71.7
February 12 83.8 71.7
February 13 83.9 71.7
February 14 83.9 71.7
February 15 83.9 71.7
February 16 83.9 71.8
February 17 84.0 71.8
February 18 84.1 71.8
February 19 84.1 71.8
February 20 84.1 71.8
February 21 84.1 71.8
February 22 84.1 71.9
February 23 84.1 71.9
February 24 84.1 71.9
February 25 84.1 71.9
February 26 84.1 71.9
February 27 84.1 71.9
February 28 84.1 71.9
March 1 84.1 71.9
March 2 84.2 72.0
March 3 84.2 72.0
March 4 84.2 72.0
March 5 84.2 72.0
March 6 84.3 72.0
March 7 84.4 72.0
March 8 84.5 72.1
March 9 84.6 72.1
March 10 84.6 72.1
March 11 84.7 72.2
March 12 84.7 72.2
March 13 84.8 72.3
March 14 84.8 72.3
March 15 84.8 72.4
March 16 84.9 72.4
March 17 84.9 72.4
March 18 85.0 72.5
March 19 85.0 72.5
March 20 85.1 72.6
March 21 85.1 72.6
March 22 85.2 72.6
March 23 85.3 72.7
March 24 85.3 72.7
March 25 85.3 72.8
March 26 85.4 72.8
March 27 85.4 72.9
March 28 85.5 72.9
March 29 85.6 73.0
March 30 85.6 73.1
March 31 85.6 73.1
April 1 85.6 73.2
April 2 85.7 73.2
April 3 85.7 73.2
April 4 85.7 73.3
April 5 85.7 73.3
April 6 85.7 73.4
April 7 85.8 73.4
April 8 85.8 73.5
April 9 85.8 73.5
April 10 85.9 73.6
April 11 85.9 73.7
April 12 86.0 73.7
April 13 86.1 73.8
April 14 86.2 73.9
April 15 86.2 73.9
April 16 86.3 74.0
April 17 86.3 74.1
April 18 86.3 74.1
April 19 86.3 74.2
April 20 86.4 74.2
April 21 86.4 74.3
April 22 86.4 74.3
April 23 86.5 74.3
April 24 86.5 74.4
April 25 86.5 74.5
April 26 86.5 74.5
April 27 86.5 74.5
April 28 86.6 74.6
April 29 86.7 74.6
April 30 86.7 74.7
May 1 86.8 74.8
May 2 86.9 74.9
May 3 86.9 74.9
May 4 87.0 75.0
May 5 87.0 75.1
May 6 87.1 75.1
May 7 87.1 75.2
May 8 87.2 75.3
May 9 87.2 75.3
May 10 87.3 75.4
May 11 87.3 75.4
May 12 87.4 75.5
May 13 87.4 75.5
May 14 87.4 75.6
May 15 87.4 75.7
May 16 87.5 75.7
May 17 87.6 75.8
May 18 87.6 75.8
May 19 87.7 75.9
May 20 87.8 75.9
May 21 87.9 76.0
May 22 88.0 76.1
May 23 88.1 76.2
May 24 88.1 76.2
May 25 88.2 76.3
May 26 88.3 76.3
May 27 88.4 76.4
May 28 88.4 76.4
May 29 88.5 76.5
May 30 88.5 76.5
May 31 88.6 76.6
June 1 88.6 76.6
June 2 88.7 76.7
June 3 88.7 76.7
June 4 88.7 76.8
June 5 88.8 76.8
June 6 88.8 76.8
June 7 88.8 76.9
June 8 88.8 76.9
June 9 88.9 77.0
June 10 88.9 77.0
June 11 88.9 77.1
June 12 89.0 77.1
June 13 89.0 77.1
June 14 89.0 77.2
June 15 89.1 77.2
June 16 89.1 77.3
June 17 89.1 77.3
June 18 89.1 77.3
June 19 89.1 77.4
June 20 89.1 77.4
June 21 89.1 77.4
June 22 89.1 77.4
June 23 89.1 77.5
June 24 89.0 77.5
June 25 89.0 77.5
June 26 89.0 77.6
June 27 89.0 77.6
June 28 89.0 77.6
June 29 88.9 77.6
June 30 88.9 77.6
July 1 88.9 77.6
July 2 88.9 77.6
July 3 88.9 77.6
July 4 88.9 77.6
July 5 88.9 77.6
July 6 88.8 77.5
July 7 88.8 77.6
July 8 88.8 77.6
July 9 88.8 77.6
July 10 88.8 77.6
July 11 88.8 77.6
July 12 88.8 77.6
July 13 88.8 77.6
July 14 88.8 77.6
July 15 88.8 77.5
July 16 88.7 77.6
July 17 88.7 77.6
July 18 88.7 77.6
July 19 88.7 77.6
July 20 88.7 77.6
July 21 88.7 77.6
July 22 88.7 77.6
July 23 88.7 77.6
July 24 88.8 77.6
July 25 88.8 77.7
July 26 88.8 77.7
July 27 88.9 77.7
July 28 88.9 77.7
July 29 88.9 77.8
July 30 88.9 77.8
July 31 89.0 77.8
August 1 89.0 77.8
August 2 89.0 77.9
August 3 89.0 77.9
August 4 89.1 77.9
August 5 89.1 77.9
August 6 89.1 77.9
August 7 89.1 77.9
August 8 89.1 77.8
August 9 89.1 77.8
August 10 89.1 77.8
August 11 89.1 77.8
August 12 89.1 77.8
August 13 89.1 77.8
August 14 89.1 77.8
August 15 89.1 77.8
August 16 89.2 77.8
August 17 89.2 77.8
August 18 89.2 77.8
August 19 89.3 77.8
August 20 89.3 77.8
August 21 89.3 77.8
August 22 89.2 77.8
August 23 89.2 77.7
August 24 89.2 77.7
August 25 89.2 77.7
August 26 89.2 77.7
August 27 89.2 77.7
August 28 89.2 77.7
August 29 89.2 77.7
August 30 89.2 77.7
August 31 89.2 77.7
September 1 89.2 77.7
September 2 89.2 77.6
September 3 89.2 77.6
September 4 89.2 77.6
September 5 89.2 77.6
September 6 89.3 77.6
September 7 89.3 77.6
September 8 89.3 77.6
September 9 89.3 77.6
September 10 89.3 77.6
September 11 89.3 77.6
September 12 89.3 77.6
September 13 89.3 77.6
September 14 89.3 77.5
September 15 89.3 77.5
September 16 89.3 77.5
September 17 89.3 77.5
September 18 89.3 77.5
September 19 89.3 77.4
September 20 89.3 77.4
September 21 89.3 77.4
September 22 89.3 77.4
September 23 89.2 77.4
September 24 89.2 77.4
September 25 89.2 77.3
September 26 89.1 77.3
September 27 89.1 77.2
September 28 89.1 77.2
September 29 89.1 77.2
September 30 89.1 77.1
October 1 89.1 77.1
October 2 89.1 77.1
October 3 89.1 77.1
October 4 89.0 77.0
October 5 89.0 77.0
October 6 89.0 77.0
October 7 88.9 77.0
October 8 88.9 77.0
October 9 88.9 76.9
October 10 88.8 76.9
October 11 88.8 76.9
October 12 88.8 76.9
October 13 88.8 76.9
October 14 88.8 76.8
October 15 88.7 76.8
October 16 88.6 76.8
October 17 88.6 76.7
October 18 88.5 76.7
October 19 88.5 76.6
October 20 88.4 76.6
October 21 88.3 76.5
October 22 88.3 76.4
October 23 88.2 76.4
October 24 88.1 76.3
October 25 88.1 76.3
October 26 88.0 76.2
October 27 87.9 76.2
October 28 87.8 76.1
October 29 87.7 76.1
October 30 87.7 76.0
October 31 87.6 76.0
November 1 87.5 75.9
November 2 87.4 75.9
November 3 87.3 75.8
November 4 87.2 75.8
November 5 87.2 75.7
November 6 87.1 75.6
November 7 87.0 75.6
November 8 86.9 75.5
November 9 86.8 75.4
November 10 86.7 75.4
November 11 86.6 75.3
November 12 86.5 75.2
November 13 86.4 75.1
November 14 86.3 75.0
November 15 86.2 75.0
November 16 86.1 74.9
November 17 86.0 74.8
November 18 86.0 74.7
November 19 85.9 74.7
November 20 85.8 74.6
November 21 85.7 74.6
November 22 85.6 74.5
November 23 85.6 74.5
November 24 85.5 74.4
November 25 85.4 74.4
November 26 85.4 74.3
November 27 85.3 74.3
November 28 85.3 74.2
November 29 85.2 74.2
November 30 85.2 74.1
December 1 85.1 74.1
December 2 85.0 74.0
December 3 85.0 73.9
December 4 84.9 73.9
December 5 84.8 73.8
December 6 84.8 73.8
December 7 84.7 73.7
December 8 84.7 73.6
December 9 84.6 73.6
December 10 84.6 73.5
December 11 84.5 73.5
December 12 84.5 73.5
December 13 84.5 73.4
December 14 84.4 73.4
December 15 84.4 73.4
December 16 84.3 73.4
December 17 84.3 73.3
December 18 84.3 73.3
December 19 84.2 73.2
December 20 84.2 73.2
December 21 84.2 73.2
December 22 84.1 73.1
December 23 84.1 73.0
December 24 84.0 73.0
December 25 84.0 72.9
December 26 83.9 72.9
December 27 83.9 72.8
December 28 83.8 72.8
December 29 83.8 72.7
December 30 83.7 72.6
December 31 83.7 72.6
Weather Station Details
Years Station Coordinates
1956–2024 San Juan Airport location
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