Historical weather data, all-time temperature records, and monthly climate averages for Jacksonville Beach, FL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Jacksonville Beach is a transitional sweet spot, with 79 years of data putting the average high at 76° and the low at 58°. The date has seen a wild range though — from a balmy 89° back in 1974 down to a teeth-chattering 38° in 1987. Rain is unlikely today, with just a 22% historical chance of any precipitation.
Jacksonville Beach earns its Florida credentials: the all-time high hit 103° in July 1986, while the coldest the thermometer has ever dropped was 14° in January 1985 — a gap of 89 degrees between the extremes. The wettest single day on record was a staggering 12.56 inches on August 19, 1995, and even snow has made a rare appearance, with 2.5 inches falling on December 23, 1989.
Summer owns this stretch of coast — highs peak around 89° during the first week of July and stay in the upper 80s through August and September. If you're looking to escape the heat, January and February are the coolest months, with highs only reaching the mid-60s. Plan around rain if you're visiting late June through July, the wettest stretch of the year averaging nearly 2 inches in a single week.