San Luis Obispo Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in San Luis Obispo, California, based on NOAA data.
Also see:
What's the hottest day of the year in San Luis Obispo?
On average, August 24 is the hottest day of the year San Luis Obispo, California. From 1991–2020, the average high temperature on August 24 was 80.7 °F and the average low was 54.8 °F.
What's the coldest day of the year in San Luis Obispo?
On average, December 27 is the coldest day of the year San Luis Obispo, California. From 1991–2020, the average high temperature on December 27 was 64.8 °F, and the average low was 40.7 °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 64.9 40.8
January 2 65.0 40.8
January 3 65.0 40.8
January 4 65.1 40.9
January 5 65.2 40.9
January 6 65.3 40.9
January 7 65.3 41.0
January 8 65.2 41.0
January 9 65.2 41.1
January 10 65.2 41.2
January 11 65.2 41.4
January 12 65.2 41.5
January 13 65.2 41.5
January 14 65.2 41.5
January 15 65.3 41.6
January 16 65.4 41.7
January 17 65.4 41.8
January 18 65.5 41.8
January 19 65.6 41.9
January 20 65.7 41.9
January 21 65.8 41.9
January 22 65.9 41.9
January 23 65.8 42.0
January 24 65.8 42.0
January 25 65.9 42.1
January 26 66.0 42.1
January 27 66.0 42.1
January 28 66.0 42.2
January 29 66.0 42.3
January 30 66.0 42.4
January 31 66.0 42.5
February 1 66.0 42.5
February 2 66.0 42.6
February 3 65.9 42.7
February 4 65.8 42.9
February 5 65.7 42.9
February 6 65.7 42.9
February 7 65.7 43.0
February 8 65.7 43.0
February 9 65.7 43.0
February 10 65.7 43.0
February 11 65.7 43.0
February 12 65.7 43.1
February 13 65.6 43.1
February 14 65.6 43.1
February 15 65.5 43.2
February 16 65.4 43.3
February 17 65.4 43.3
February 18 65.3 43.4
February 19 65.3 43.5
February 20 65.2 43.5
February 21 65.2 43.5
February 22 65.3 43.5
February 23 65.4 43.5
February 24 65.4 43.6
February 25 65.6 43.7
February 26 65.7 43.8
February 27 65.8 44.0
February 28 65.9 44.0
March 1 65.9 44.1
March 2 66.0 44.1
March 3 66.1 44.2
March 4 66.3 44.2
March 5 66.4 44.3
March 6 66.6 44.4
March 7 66.7 44.5
March 8 66.7 44.5
March 9 66.8 44.6
March 10 66.8 44.6
March 11 66.8 44.7
March 12 66.9 44.8
March 13 66.9 44.9
March 14 67.1 45.0
March 15 67.2 45.0
March 16 67.3 45.0
March 17 67.5 45.1
March 18 67.5 45.1
March 19 67.6 45.1
March 20 67.6 45.1
March 21 67.7 45.2
March 22 67.8 45.2
March 23 67.8 45.3
March 24 67.8 45.3
March 25 67.8 45.3
March 26 67.7 45.2
March 27 67.7 45.2
March 28 67.7 45.2
March 29 67.7 45.2
March 30 67.7 45.3
March 31 67.7 45.3
April 1 67.7 45.2
April 2 67.8 45.2
April 3 67.9 45.2
April 4 68.0 45.2
April 5 68.1 45.1
April 6 68.3 45.2
April 7 68.5 45.3
April 8 68.6 45.4
April 9 68.7 45.5
April 10 68.9 45.5
April 11 69.1 45.6
April 12 69.2 45.7
April 13 69.4 45.9
April 14 69.5 45.9
April 15 69.6 46.0
April 16 69.8 46.1
April 17 70.1 46.3
April 18 70.3 46.4
April 19 70.5 46.5
April 20 70.7 46.6
April 21 70.8 46.8
April 22 70.9 46.9
April 23 71.1 47.0
April 24 71.2 47.1
April 25 71.3 47.2
April 26 71.3 47.3
April 27 71.4 47.3
April 28 71.6 47.4
April 29 71.7 47.5
April 30 71.8 47.6
May 1 72.0 47.7
May 2 72.0 47.8
May 3 72.1 48.0
May 4 72.2 48.1
May 5 72.2 48.2
May 6 72.3 48.3
May 7 72.4 48.4
May 8 72.4 48.4
May 9 72.4 48.4
May 10 72.4 48.5
May 11 72.3 48.6
May 12 72.3 48.6
May 13 72.3 48.7
May 14 72.3 48.8
May 15 72.2 48.9
May 16 72.2 49.0
May 17 72.2 49.0
May 18 72.3 49.0
May 19 72.4 49.1
May 20 72.4 49.2
May 21 72.6 49.3
May 22 72.6 49.3
May 23 72.7 49.4
May 24 72.8 49.5
May 25 72.9 49.6
May 26 73.0 49.7
May 27 73.2 49.8
May 28 73.2 50.0
May 29 73.3 50.1
May 30 73.4 50.1
May 31 73.5 50.2
June 1 73.7 50.3
June 2 73.8 50.3
June 3 73.9 50.4
June 4 74.0 50.5
June 5 74.1 50.6
June 6 74.2 50.7
June 7 74.4 50.8
June 8 74.6 50.8
June 9 74.8 50.9
June 10 75.0 50.9
June 11 75.2 51.0
June 12 75.4 51.1
June 13 75.5 51.2
June 14 75.7 51.3
June 15 75.8 51.4
June 16 75.9 51.5
June 17 76.0 51.6
June 18 76.2 51.6
June 19 76.3 51.7
June 20 76.4 51.8
June 21 76.5 51.9
June 22 76.7 52.0
June 23 76.9 52.1
June 24 77.0 52.2
June 25 77.1 52.3
June 26 77.3 52.4
June 27 77.4 52.5
June 28 77.5 52.6
June 29 77.6 52.7
June 30 77.7 52.8
July 1 77.9 53.0
July 2 77.9 53.1
July 3 78.0 53.2
July 4 78.1 53.3
July 5 78.3 53.4
July 6 78.3 53.5
July 7 78.4 53.7
July 8 78.5 53.8
July 9 78.5 53.9
July 10 78.5 54.0
July 11 78.6 54.0
July 12 78.6 54.1
July 13 78.7 54.2
July 14 78.7 54.2
July 15 78.7 54.3
July 16 78.7 54.4
July 17 78.6 54.5
July 18 78.7 54.5
July 19 78.8 54.6
July 20 78.9 54.7
July 21 79.0 54.7
July 22 79.0 54.8
July 23 78.9 54.8
July 24 78.9 54.8
July 25 78.9 54.8
July 26 79.0 54.9
July 27 79.0 54.9
July 28 79.0 54.9
July 29 79.1 54.9
July 30 79.1 54.9
July 31 79.2 54.9
August 1 79.3 54.9
August 2 79.4 54.9
August 3 79.5 55.0
August 4 79.5 55.0
August 5 79.5 55.0
August 6 79.6 54.9
August 7 79.6 54.9
August 8 79.6 55.0
August 9 79.6 55.0
August 10 79.6 55.0
August 11 79.7 55.0
August 12 79.7 55.0
August 13 79.8 55.0
August 14 79.9 54.9
August 15 80.0 54.9
August 16 80.1 54.9
August 17 80.1 54.9
August 18 80.2 54.9
August 19 80.3 54.9
August 20 80.3 54.9
August 21 80.4 54.9
August 22 80.5 54.9
August 23 80.6 54.9
August 24 80.7 54.8
August 25 80.7 54.8
August 26 80.7 54.8
August 27 80.6 54.8
August 28 80.6 54.7
August 29 80.5 54.7
August 30 80.3 54.6
August 31 80.2 54.6
September 1 80.2 54.5
September 2 80.2 54.4
September 3 80.2 54.3
September 4 80.2 54.3
September 5 80.2 54.2
September 6 80.3 54.1
September 7 80.3 54.1
September 8 80.3 54.0
September 9 80.3 53.9
September 10 80.4 53.9
September 11 80.4 53.9
September 12 80.5 53.9
September 13 80.5 53.8
September 14 80.5 53.8
September 15 80.5 53.7
September 16 80.4 53.6
September 17 80.4 53.5
September 18 80.4 53.5
September 19 80.3 53.4
September 20 80.2 53.4
September 21 80.0 53.3
September 22 80.0 53.3
September 23 80.1 53.1
September 24 80.2 53.0
September 25 80.2 52.9
September 26 80.1 52.8
September 27 80.1 52.6
September 28 80.1 52.5
September 29 80.3 52.5
September 30 80.3 52.4
October 1 80.2 52.4
October 2 80.2 52.3
October 3 80.1 52.3
October 4 80.1 52.2
October 5 80.0 52.1
October 6 79.9 52.1
October 7 79.9 52.0
October 8 79.8 51.9
October 9 79.6 51.8
October 10 79.5 51.7
October 11 79.3 51.5
October 12 79.1 51.3
October 13 79.0 51.1
October 14 78.8 51.0
October 15 78.5 50.8
October 16 78.2 50.6
October 17 78.0 50.4
October 18 77.9 50.3
October 19 77.9 50.1
October 20 77.8 50.0
October 21 77.6 49.8
October 22 77.4 49.7
October 23 77.1 49.6
October 24 76.9 49.5
October 25 76.7 49.4
October 26 76.5 49.3
October 27 76.1 49.1
October 28 75.8 48.9
October 29 75.5 48.6
October 30 75.4 48.4
October 31 75.2 48.3
November 1 75.0 48.1
November 2 74.8 47.9
November 3 74.6 47.7
November 4 74.4 47.4
November 5 74.1 47.2
November 6 73.9 47.1
November 7 73.6 46.9
November 8 73.3 46.7
November 9 73.0 46.5
November 10 72.8 46.3
November 11 72.6 46.2
November 12 72.4 46.0
November 13 72.2 45.8
November 14 72.0 45.6
November 15 71.7 45.4
November 16 71.4 45.2
November 17 71.1 45.0
November 18 70.8 44.9
November 19 70.5 44.7
November 20 70.2 44.5
November 21 70.0 44.3
November 22 69.7 44.1
November 23 69.5 43.9
November 24 69.3 43.8
November 25 69.2 43.7
November 26 69.0 43.6
November 27 68.8 43.5
November 28 68.5 43.4
November 29 68.1 43.2
November 30 67.8 43.0
December 1 67.6 42.9
December 2 67.3 42.7
December 3 67.1 42.6
December 4 67.0 42.5
December 5 66.7 42.3
December 6 66.5 42.1
December 7 66.4 41.9
December 8 66.2 41.8
December 9 66.0 41.7
December 10 65.8 41.7
December 11 65.6 41.5
December 12 65.5 41.4
December 13 65.4 41.3
December 14 65.4 41.2
December 15 65.3 41.2
December 16 65.2 41.1
December 17 65.1 41.0
December 18 65.0 41.0
December 19 65.0 41.0
December 20 64.9 40.9
December 21 64.9 40.8
December 22 64.9 40.7
December 23 64.8 40.7
December 24 64.8 40.7
December 25 64.8 40.7
December 26 64.8 40.7
December 27 64.8 40.7
December 28 64.8 40.7
December 29 64.8 40.8
December 30 64.9 40.8
December 31 64.9 40.8
Weather Station Details
Years Station Coordinates
1999–2024 San Luis Obispo Airport location
1893–1998 San Luis Obispo Poly location
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