St. Augustine Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in St. Augustine, Florida during each month of the year.
The average high and low temperatures are listed below monthly and annually for the Atlantic coast city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in St. Augustine, scroll down farther. There are also monthly and yearly counts of days with cool weather.
The first set of high and low temperatures are averages for 2003 to 2012. Everything else here is based on 1991 to 2020 weather.
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
68 | 48 | January | 20 | 9 |
70 | 50 | February | 21 | 10 |
74 | 55 | March | 24 | 13 |
80 | 61 | April | 27 | 16 |
85 | 67 | May | 30 | 20 |
89 | 72 | June | 31 | 22 |
91 | 74 | July | 33 | 23 |
90 | 74 | August | 32 | 23 |
87 | 73 | September | 31 | 23 |
82 | 67 | October | 28 | 19 |
75 | 58 | November | 24 | 14 |
69 | 51 | December | 21 | 11 |
80 | 62 | Year | 27 | 17 |
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
67 | 46 | January | 19 | 8 |
70 | 49 | February | 21 | 9 |
74 | 53 | March | 23 | 12 |
79 | 59 | April | 26 | 15 |
85 | 66 | May | 29 | 19 |
89 | 71 | June | 31 | 22 |
91 | 73 | July | 33 | 23 |
90 | 73 | August | 32 | 23 |
87 | 72 | September | 31 | 22 |
82 | 65 | October | 28 | 18 |
75 | 57 | November | 24 | 14 |
69 | 49 | December | 20 | 10 |
80 | 61 | Year | 26 | 16 |
Days of Hot Weather in St. Augustine
The hottest temperatures at St. Augustine are usually in the 90s Fahrenheit. Only once every two years on average the thermometer does rise into the 100s (over 38 °C).
The 90-degree weather can show up here as early as March and as late as October. About half of summer days have highs in the 90s.
70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
---|---|---|---|
January | 13 | 1 | 0 |
February | 14 | 3 | 0 |
March | 24 | 7 | 0 |
April | 29 | 15 | 1 |
May | 31 | 26 | 5 |
June | 30 | 29 | 12 |
July | 31 | 31 | 19 |
August | 31 | 31 | 16 |
September | 30 | 29 | 8 |
October | 31 | 21 | 1 |
November | 23 | 7 | 0 |
December | 15 | 2 | 0 |
Year | 302 | 202 | 62 |
How Often St. Augustine Has Cold Temperatures
Five nights a winter at St. Augustine cool to freezing temperatures. But it normally does not get colder than 20 °F (-8 °C).
A night with frosty air can happen anytime from November to March, but is most common in January. Even after a crisp night in the city, everything thaws out during the day.
32 °F 0 °C |
40 °F 4 °C |
50 °F 10 °C | |
---|---|---|---|
January | 2 | 8 | 18 |
February | 1 | 5 | 14 |
March | 0 | 2 | 10 |
April | 0 | 0 | 3 |
May | 0 | 0 | 0 |
June | 0 | 0 | 0 |
July | 0 | 0 | 0 |
August | 0 | 0 | 0 |
September | 0 | 0 | 0 |
October | 0 | 0 | 1 |
November | 0 | 2 | 8 |
December | 1 | 6 | 15 |
Year | 5 | 22 | 69 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.