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Summer 2023 weather forecast for Nashville

Prepare for summer weather in Nashville, TN with these seasonal temperature and precipitation outlooks.

A photo of the fountain and water at Centennial Park.

Summer is here, weather you like it or not.

Photo by NASHtoday

Table of Contents

We know the question on your mind, Music City — when’s it going to get hot? Thanks to the National Oceanic and Atmospheric Administration’s Climate Prediction Center, we know what temperatures and precipitation trends to expect in our city for July, August, and September. While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for what summer will bring.

Reminder: The first day of summer is on Wednesday, June 21.

A screenshot of the color coded NOAA Seasonal Temperature Outlook map.

Here’s what we can expect this summer.

Screenshot via NOAA

🌡️ Temperature

Think warm. This summer, Nashville has a 40-50% chance of temperatures being higher than normal.

🌨️ Precipitation

Expect about average precipitation. Nashville has an equal chance of seeing average rainfall amounts this summer.

Jump into July

Typically in Nashville, July’s temperatures fluctuate between an average low of 69.8° and an average high of 88.3°, making it the hottest month. The average heat index comes out to about 104°. If the thought of that makes you sweat, it’s also helpful to note that July is the month with the most rainfall, averaging ~20 days.

All about August

In August, the average high and low temps are between 87.4° and 68.5°. The average length of a day is 13.5 hours, with the average sunshine ringing in at just over 10 hours a day. We don’t know about you, but that sounds like the perfect sunbathing weather to us. Pro tip: The average relative humidity in August is 73%, so you might want to sit by the water.

Soak up September

Historically, average highs in September drop ~6° to 81.5°, with an average low of 62.8°. It’s also a big turning point in the average amount of sunlight we see in a day. The sun sets at 7:15 p.m. on the first day of September and 6:32 p.m. on the last, averaging just over eight hours of sunshine.

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