There are some things about the season that are a no-brainer ... and then there are fun facts about summer you wish you knew before!
20 Weird and Amazing Things That Only Happen in the Summer
Updated on May 05, 2025
Bon voyage, baby turtles!
Sea turtle walks are a popular event on Florida beaches in June and July when huge mama turtles weighing in at around 200 to 250 pounds come ashore to lay their eggs. About two months later, the tiny and adorable sea turtles hatch but they don’t just make a run for the water. They wait until the sand cools, which is usually at night, and begin their journey to the water. If you’re lucky enough to see them at night, don’t shine any light on them. It could really interfere with their sense of direction and set them off course.
You’ll likely attend more birthday parties in September
Here’s one of the coolest fun facts about summer: Nine out of 10 birthdays occur in September with September 9 and 19 as the two most popular days to enter the world. Maybe it’s the spiked eggnog or the warm fuzzy feelings of the holidays, but more people are frisky during December and holiday miracles are conceived.
Summer is full of drama
According to Fortune magazine, we’re not heading to the theaters as much because let’s face it, it’s pretty comfy to stream something on Netflix and watch in your pajamas with your own microwave popcorn, but major motion picture studios still invest millions on what they hope will be summer blockbusters. If you think about it, you probably saw blockbusters such as Jaws, E.T. and Star Wars during your summer vacation. Keep the tradition going!
Sirus-ly, it’s hot!
The “dog days of summer” (July 3 through August 11) has nothing to do with our beloved earth-bound furry companions, but “dog” is part of the equation. According to National Geographic, the dog star named Sirius appears to rise just before the sun, in late July. The Greeks and Romans referred to these as the hottest times of the year. The Egyptians referred to Sirius as the Nile Star and when they saw it rising before dawn, they knew the Nile would flood the banks and make their ground more fertile.
D-Day for couples with kids
According to research from the University of Washington, more parents divorce in March and August than any other months. The ever-present family-activity calendar likely prompts parents to file. After all, who wants to ruin the winter holidays or summer vacation with a divorce and custody issues? The late summer filings coincide with the upcoming school year. Relocating or enrolling kids in a new school nudges on-the-fence parents to call their attorney.
Oui! The Eiffel Tower is taller
Who would have thought that one of most interesting fun facts about summer would revolve around the Eiffel Tower? The tower gains about six inches in height during the warmer summer months. The famous landmark is mainly constructed of metal which expands in heat. In addition, the top of the tower may shift away from the sun by as much as seven inches due to the thermal expansion on the side facing the sun.
Dazzling meteor showers
The Perseid meteor shower in August is an annual favorite of amateur stargazers. During this time, Earth passes through debris left by Comet 109P/Swift-Tuttle (which last passed near Earth in 1992). Think of them as shooting stars! The Perseids are active from July 17 to August 23, but according to the American Meteor Society, the shower will peak on the night of Aug. 12, before dawn on Aug. 13, 2025.
Avoid the ER in July
Don’t panic if you end up in the ER this summer, but a report published in the Annals of Internal Medicine found the most dangerous time to go to the hospital is in July, especially if it is a teaching hospital where new doctors are trained. July is the month seasoned medical residents leave the hospital and new med students arrive. Death rates increase between 8% to 24% in July.
Your chances of getting burned are greater
It doesn’t matter if you’re 10 or 48 years old, waving a sparkler on the 4th of July is a time-honored tradition we all love. Unfortunately, the United States Consumer Product Safety Commission Fireworks Information Center says those sparklers can heat up to 2,000 degrees—enough to melt some metals and your skin. When you use them safely and correctly, fireworks can be fun too!
Moody babies
A 2014 European College of Neuropsychopharmacology study revealed that babies born during the summer are more prone to mood swings and babies born in cooler months were more—pardon the pun—chill. Scientists in the study aren’t exactly sure why this happens, but neurotransmitters such as dopamine and serotonin may be influenced by the season in which you are born. Just don’t let this study dictate your mood.
If you have diabetes, this can happen
Injection sites change in the summer due to excessive heat; the blood vessels get bigger and when insulin is injected it can be absorbed faster putting you at risk for low blood sugar. Get inside and cool off for a few minutes, then do the injection and remember to keep your insulin at a temperature below 86 degrees.
All day, every day, sun
The Midnight Sun (visible sun for 24 hours) is a natural phenomenon that occurs around the summer solstice each year and lasts for several weeks. Northern lands, including Canada, Iceland, Sweden, Finland, Norway, Russia and Alaska all benefit. In Barrow, Alaska, for instance, the sun doesn’t set for two-and-a-half months!
Crazy climbing goats
Every June, goats climb 30 feet or more up the thorny and gnarly Argan trees of southwest Morocco to get a taste of the tree’s fruit, which looks like a shriveled up apple. It’s a scenario that seems like only kids could imagine but these goats were made for tree climbing. They have two-toed hooves, which spread out to give them balance and leverage. The soft soles of the goat’s hooves help them grab onto the bark and their dewclaws give them the ability to pull themselves up branches.
Blink if you want to mate
The Great Smoky Mountains National Park in Tennessee and North Carolina hosts a massive meet and mate night for fireflies. These synchronous fireflies show up in the thousands every summer for two weeks of synchronized blinking to attract mates. They have to act fast because even though the larvae takes one to two years to mature, once born, fireflies only live for around 21 days.
A whale of a good time
Fall in New England may be picturesque with brilliant foliage but you may want to travel during the summer to witness the whales as they swim into these warm waters for their annual nutrient-enriched feeding frenzy of krill, herring, mackerel and other schooling fish. The most common sightings include the Humpback, Finback and Minke. Once the water starts to cool they head to warmer waters to mate and breed.
Bears fishing
Summertime in Alaska brings out the four-legged fisherman in groves as wild bears gather around the various streams and falls and fish for sockeye salmon. Thousands upon thousands of salmon swim together upstream, but many don’t get a chance to spawn with the bears waiting to grab them for lunch. It’s not unusual for a bear to spear hundreds of salmon each day during spawning season.
It burns when you pee after wearing a swimsuit all day
If you’re under 40 and female, your chances of getting a urinary tract infection (UTI) in the summer are fairly high, according to a study published in the Open Forum of Infectious Disease online. In fact, hospitalization for a UTI spiked for this age group. Summer heat and humidity provide the perfect breeding ground for bacteria to hang out in your urinary tract. And when that happens, you’ll know it. It burns when you pee and you feel like you have to go every five minutes. Wearing a damp swimsuit all day, not drinking enough water or holding in your pee because you just can’t walk to the beach porta-potty are all no-no’s.
That’s a lot of wieners!
Summer is hot dog season for a few reasons: It’s the favored portable food when you’re camping, at the ballpark or a family picnic. Americans eat a whopping estimated 20 billion hot dogs from Memorial Day to Labor Day. We might need a little more mustard because that equates to 70 hot dogs per person annually.
You have more thunderstorms if you live in these areas
According to the National Oceanic and Atmospheric Administration (NOAA) National Weather Service, if you live in the lower Midwest and Southeast parts of the United States, you’re going to get more rain in the summer. These areas are more humid and high humidity and warm temperatures are a ripe formula for thunderstorms. It seems summer air can hold a lot more water vapor than colder air in the cooler months and once those clouds can’t hold anymore, they let it go and BOOM, you have a summer thunderstorm!
Summertime sadness
Seasonal affective disorder (SAD) has two seasons: Winter and summer. And while most of our facts have been More people suffer from winter SAD than summer SAD, but the causes and symptoms are generally the opposite. For example, research points to too much sun causing an overdose of vitamin D in the summer versus too little in the winter. Instead of overeating, with winter SAD, summer SAD sufferers actually experience a loss of appetite. Anxiety and poor body image, along with comparing yourself to your friend’s social media highlights are also contributing factors. Sleep patterns are off too. With summer SAD, insomnia keeps you up, causing irritability and moodiness.
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Sources:
- Space: “Perseid Meteor Shower 2025: When, Where and Wow to See It”
- Live Science: “Eiffel Tower: Information & Facts”
- National Geographic: “Here’s Why We Call This Time of Year the ‘Dog Days’ of Summer”
- ACPJournals: “Graduate Medical Education and Patient Safety: A Busy—and Occasionally Hazardous—Intersection”
- CPSC: “Fireworks”
- ScienceDaily: “Birth season affects your mood in later life, new research suggests”
- NewScientist: “Tree-climbing goats spit out and disperse valuable argan seeds”
- Smoky Mountains: “View The Amazing Synchronous Fireflies In The Smoky Mountains”
- Fortune: “Summer Box Office Revenue Is Really Bad and Social Media Isn’t Helping”
- University of Washington: “Is divorce seasonal? UW research shows biannual spike in divorce filings”
- National Library of Medicine: “The Increase in Hospitalizations for Urinary Tract Infections and the Associated Costs in the United States, 1998–2011”
- National Hot Dog and Sausage Council: “Hot Dog Fast Facts”
- NSSL: “Severe Weather 101”
- National Library of Medicine: “Seasonal Affective Disorder: An Overview of Assessment and Treatment Approaches”
