Weather in St. Augustine: Climate, Seasons, and Average Monthly Temperature

St George Street in St Augustine, Florida
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St. Augustine is one of Florida's top vacation destinations, providing a glimpse into Florida's history and our nation's as well, as it's the oldest city in the U.S. Located in Northeast Florida, St. Augustine is situated inland along the Matanzas River and stretches to the Atlantic Ocean where you'll find its beautiful beaches.

With an overall average high temperature of 78 degrees Fahrenheit (26 degrees Celsius) and an average low of 61 degrees Fahrenheit (16 degrees Celsius), you'll find St. Augustine's summer temperatures a bit more comfortable and winter temperatures a bit chillier than what you might experience in Orlando at the same time of year.

Of course, Florida's weather is unpredictable, so you'll sometimes experience extremes. As an example, the highest recorded temperature in St. Augustine was a hot 103 degrees Fahrenheit (39 degrees Celsius) in 1986, and the lowest recorded temperature was a freezing 10 degrees Fahrenheit (-12 degrees Celsius) in 1985.

Fast Climate Facts

  • Hottest Month: July, 91 F (33 C)
  • Coldest Month: January, 67 F (19 C)
  • Wettest Month: September, 6.6 inches

Hurricane Season in St. Augustine

Florida's hurricane season runs from June 1 through November 30. While hurricanes aren't incredibly common, Hurricane Matthew did brush the East Coast of Florida in early October 2016. The late-in-the-season storm caused significant flooding in St. Augustine, proving the importance of knowing how to prepare if you're traveling during hurricane season. However, many hurricanes are tropical depressions by the time they get close to St. Augustine. Still, consider booking a hotel that offers a hurricane guarantee or taking out travel insurance if you must travel during hurricane season.

Spring in St. Augustine

Temperatures in St. Augustine start warming up by mid-March, but aren't yet oppressively hot, making this a great time to visit. Rain is moderate during the spring months, so you also don't need to worry about it spoiling your trip.

What to pack: Shorts, T-shirts, and light dresses are appropriate attire for much of the spring season, but you'll still want to carry a light sweater or jacket for evenings when the temperature can drop a bit.

Average Temperatures and Rainfall by Month

March: 74 F (22 C) / 52 F (12 C), 3.5 inches

April: 79 F (25 C) / 58 F (14 C), 2.4 inches

May: 8 F5 (27 C) / 64 F (18 C), 3.5 inches

Summer in St. Augustine

Summer in St. Augustine is generally hot and humid. This is also a time of year that experiences lots of cloudy days and an increasing amount of rainfall. Mid-August is typically the hottest time of the year, with rain growing more frequent until its peak in September. June is the month in which St. Augustine receives the most daylight; the longest day is typically around 14 hours and takes place on June 21.

What to pack: You'll want to pack light clothing that is breathable and will wick away sweat and moisture, given St. Augustine's humidity. If you plan on taking a moonlight cruise or carriage ride, pack a light sweater or pashmina scarf for the evenings. Bring plenty of sunscreen, as St. Augustine has an extremely high UV index.

Average Temperatures and Rainfall by Month

June: 88 F (31 F) / 70 F (21 C), 5.7 inches

July: 90 F (32 F) / 72 F (22 C), 5.9 inches

August: 89 F (32 F) / 72 F (22 C), 6.6 inches

Fall in St. Augustine

In addition to being hurricane season, fall in St. Augustine is also the peak of rainy season. If dry weather is what you're after, you'll want to avoid visiting in September or October, when strong rain showers are frequent. Temperatures start cooling off by the middle or end of October and by November, rains are much less frequent with cooler temperatures—perfect for spending time outside.

What to pack: If you're visiting in early fall, make sure to bring a rain jacket, waterproof sandals, and an umbrella. By November, bring a sweatshirt or sweater for putting on at nighttime when the temperatures drop.

Average Temperatures and Rainfall by Month

September: 87 F (30 F) / 71 F (22 C), 6.4 inches

October: 81 F (27 F) / 64 F (18 C), 3.6 inches

November: 74 F (23 F) / 54 F (13 C), 2.3 inches

Winter in St. Augustine

Unlike some other parts of Florida, St. Augustine can get downright chilly during the winter months. Luckily, there's no snow or other wintry precipitation to speak of, but temperatures in the 40s are not uncommon. Daytime temperatures are pleasant, and the city mostly experiences blue skies with few clouds during winter.

What to pack: Leave the shorts behind in the winter in favor of long pants and bring a jacket. While you'll be able to wear short sleeves during the day in the winter months, nights can be chilly.

Average Temperatures and Rainfall by Month

December: 68 F (20 C) / 48 F (9 C), 2.9 inches

January: 66 F (19 C) / 45 F (7 C), 3 inches

February: 68 F (20 C) / 47 F (8 C), 3.6 inches

Average Monthly Temperature, Rainfall, and Daylight Hours
Month Avg. Temp. Rainfall Daylight Hours
January 65 F 3.2 inches 11 hours
February 67 F 2.9 inches 11 hours
March 72 F 3.9 inches 12 hours
April 77 F 2.6 inches 13 hours
May 82 F 3.1 inches 14 hours
June 87 F 5.3 inches 14 hours
July 89 F 4.5 inches 14 hours
August 88 F 5.9 inches 13 hours
September 85 F 6.5 inches 12 hours
October 79 F 4.6 inches 11 hours
November 73 F 2.2 inches 11 hours
December 67 F 2.8 inches 10 hours
Article Sources
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  1. St. Augustine Climate.2020.