St. Augustine Beach, FL climate
St. Augustine Beach has warm winters and warm summers, with plenty of rain. A typical July afternoon reaches 90°, a January night drops to 48°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in St. Augustine Beach feels like
Winter
Spring
Summer
Fall
St. Augustine Beach weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 66° | 48° | 3.1" | 0 | 9 | 0 | 50° – 63° |
| February | 69° | 50° | 3.0" | 0 | 8 | 0 | 51° – 68° |
| March | 73° | 55° | 3.3" | 0 | 9 | 0 | 57° – 71° |
| April | 79° | 61° | 2.7" | 0 | 7 | 0 | 65° – 74° |
| May | 84° | 67° | 3.4" | 0 | 7 | 0 | 71° – 79° |
| June | 88° | 72° | 6.5" | 0 | 12 | 0 | 78° – 85° |
| July | 90° | 74° | 5.7" | 0 | 12 | 0 | 80° – 85° |
| August | 89° | 75° | 7.4" | 0 | 15 | 0 | 80° – 84° |
| September | 87° | 73° | 7.7" | 0 | 14 | 0 | 77° – 84° |
| October | 81° | 66° | 4.7" | 0 | 9 | 0 | 70° – 79° |
| November | 74° | 57° | 2.7" | 0 | 8 | 0 | 60° – 72° |
| December | 68° | 51° | 2.8" | 0 | 8 | 0 | 49° – 69° |
| Year | 79° | 62° | 52.9" | 0.0" | 118 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in St. Augustine Beach
St. Augustine Beach gets 53 inches of rain and melted snow a year. September is the wettest month and November the driest. Rain or snow falls on about 118 days a year.
A year-round growing season
Heating and cooling a home in St. Augustine Beach
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In St. Augustine Beach, 21% of that work is heating and 79% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
St. Augustine Beach and its neighbors
St. Augustine Beach borders 2 towns with climate data. January nights across them vary by 0.3°. St. Augustine has the coldest January nights (47°) and Butler Beach the hottest July afternoons (90°). St. Augustine Beach’s January low is 48° and its July high 90°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How St. Augustine Beach compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in St. Augustine Beach averaged 1.3° warmer than the 1900s. The biggest change is in February (+1.8°). The shift is larger than in 57% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at St. Augustine Beach’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 49° to 69°. July is the most reliable, staying within 5°.
Common questions about St. Augustine Beach’s climate
What is the coldest month in St. Augustine Beach?
January, with a typical high of 66° and a low of 48°.
What is the hottest month in St. Augustine Beach?
July, with a typical high of 90° and a low of 74°. About 62 days a year reach 90°.
How much snow does St. Augustine Beach get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in St. Augustine Beach?
Frost is uncommon. Only 79% of years see a night at 32° or below.
What is the rainiest month in St. Augustine Beach?
September, with 7.7 inches of rain and melted snow. The year totals 53 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for St. Augustine Beach itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at St Augustine Lighthouse, FL (3 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.