United States Florida Florida Guide Things To Do Essentials Where to Stay Getaways All Florida Average Monthly Temperature and Rainfall in Cedar Key Written by Dawn Henthorn Dawn Henthorn is a lifelong Florida resident and travel expert, former editor of Wire to Wire and Horse Racing Digest, and a journalist for Orlando Family Magazine. Tripsavvy's Editorial Guidelines Dawn Henthorn Updated 04/17/19 Share Pin Email William Dummitt/Getty Images Located on Central Florida's West Coast and situated right on the Gulf of Mexico, Cedar Key has an overall average high temperature of 82° and an average low of 57°. On average, Cedar Key's warmest month is July, and January is the average coolest month. The maximum average rainfall usually falls in August. The highest recorded temperature in Cedar Key was 105° in 1989 and the lowest recorded temperature was a very cold 9° in 1985. What to Pack Cool and casual is the way to dress in Cedar Key. The shops are right on the water, and the breezes usually help keep summer temperatures tolerable. If you're spending a night or two, you'll want a light cover-up for those cool night breezes or something a little heavier when the temperature dips during the winter months of January and February. Of course, pack your bathing suit. Although Cedar Key can't brag about their small beach, sunbathing just about any time of the year is not out of the question. Keep an eye on the tropics if you are traveling during the Atlantic Hurricane Season that runs from June 1 through November 30. Do take along an umbrella during the summer months for those pesky afternoon thunderstorms. Lightning is a serious risk, so be sure to seek shelter when you hear that rumble. Average temperatures, rainfall, and Gulf of Mexico water temperatures for Cedar Key: January Average High: 69° F Average Low: 43° F Average Precipitation: 4.51 inches Average Gulf of Mexico Temperature: 58° F February Average High Temperature: 71° F Average Low Temperature: 46° F Average Precipitation: 3.39 inches Average Gulf of Mexico Temperature: 60° F March Average High Temperature: 77° F Average Low Temperature: 50° F Average Precipitation: 4.73 inches Average Gulf of Mexico Temperature: 66° F April Average High Temperature: 82° F Average Low Temperature: 55° F Average Precipitation: 3.47 inches Average Gulf of Mexico Temperature: 73° F May Average High Temperature: 88° F Average Low Temperature: 62° F Average Precipitation: 3.05 inches Average Gulf of Mexico Temperature: 80° F June Average High Temperature: 91° F Average Low Temperature: 68° F Average Precipitation: 6.74 inches Average Gulf of Mexico Temperature: 84° F July Average High Temperature: 92° F Average Low Temperature: 70° F Average Precipitation: 8.55 inches Average Gulf of Mexico Temperature: 86° F August Average High Temperature: 92° F Average Low Temperature: 71° F Average Precipitation: 9.80 inches Average Gulf of Mexico Temperature: 86° F September Average High Temperature: 90° F Average Low Temperature: 69° F Average Precipitation: 6.61 inches Average Gulf of Mexico Temperature: 83° F October Average High Temperature: 84° F Average Low Temperature: 59° F Average Precipitation: 2.94 inches Average Gulf of Mexico Temperature: 76° F November Average High Temperature: 76° F Average Low Temperature: 51° F Average Precipitation: 2.64 inches Average Gulf of Mexico Temperature: 66° F December Average High Temperature: 70° F Average Low Temperature: 45° F Average Precipitation: 3.22 inches Average Gulf of Mexico Temperature: 60° F Visit Weather.com for current weather conditions, 5- or 10-day forecast and more. If you're planning a Florida vacation or getaway, find out more about weather, events, and crowd levels from our month-by-month guides. Was this page helpful? Thanks for letting us know! Share Pin Email Tell us why! Submit