We have to hand it to cicadas. They are persistent. Their buzz often fills the summer air, especially in warm parts of the world. It’s a sound that defines long afternoons and humid evenings. But as you lay in bed with this soundtrack, you may have asked yourself “when do cicadas stop making noise at night?”.
Some find the noise soothing, but sometimes, it can annoy. Do cicadas be quiet at some point during the evening? Or do they never truly go silent?
Quick answer – the answer depends on temperature, light, species, and geography – but in most cases, the symphony of cicadas fades not long after dusk.
Want more? Here’s an in-depth look at when and why that happens.
- Daytime signing: The norm
- Why cicadas stop at night
- The exceptions
- When do cicadas stop making noise at night exactly?
- Regional patterns across the United States
- Tips
Daytime singing: The norm
Most cicada species are diurnal, meaning they’re active during the day. Their loud calls, made by vibrating membranes called tymbals, are primarily for attracting mates, and daylight hours are ideal for this behavior.
Researchers at the University of Connecticut’s Cicada Project note that no US cicadas normally sing at night, though many species experience “intense activity at dusk.” Experts explain that calling typically begins in the late morning, peaks in the afternoon, and declines sharply by sunset.
According to the Forest Preserve District of Will County’s ‘Sounds of the Night’ guide, “cicadas generally call during daylight hours and at dusk, turning quiet by nightfall.”
So, in most of the United States, the buzzing stops right after sunset – when temperatures begin to drop and darkness settles in.
Why cicadas stop at night
There are several reasons why cicadas fall silent after dark. Most of them are biological, while others relate to the environment.
🪰 Temperature and sunlight dependence
Cicadas’ sound production depends on muscle activity and warmth. Cooler evening air slows them down, and once sunlight disappears, they become less active overall. Their tymbal muscles simply don’t work efficiently when cold.
🪰 Predator avoidance
Many of their predators, such as birds, are daytime hunters, but cicadas are still vulnerable to bats and nocturnal mammals. Staying still and silent at night helps reduce the risk of being eaten.
🪰 Mating behavior
Male cicadas sing to attract females, and those courtship rituals usually happen when both sexes are active and visible – in the light of day. Once darkness falls, mating activity subsides.
🪰 Evolutionary habit
Over millions of years, most cicadas have evolved to take advantage of daylight warmth and acoustics. Their calls carry best in warm, sunlit air.
The exceptions
While most US cicadas stop by nightfall, there are exceptions – both in specific species and under special conditions.
💡 Artificial lights
Bright lights can trick cicadas into thinking it’s still daytime. Streetlights, porch lamps, or stadium floodlights sometimes keep them calling long after sunset.
🌡️ Hot, humid nights
On exceptionally warm evenings – especially in the South or during a heatwave – cicadas may continue their chorus for a few hours into the night. The warmth keeps their metabolism and mating drive high enough to sustain calling.
🪰🪰🪰 Disturbance or overcrowding
A large emergence of cicadas (like a brood of periodical cicadas) can result in occasional late-night calls simply due to competition and chaos among individuals.
🌍 Regional variants
Though rare, some tropical or subtropical cicada species around the world are nocturnal or crepuscular (active at twilight). In the US, a few species are known to sing briefly around dusk, but true night singers are uncommon.
So if you hear that distinct buzz at 10pm, you’re probably near a very warm area, or under a bright streetlight that’s confusing the insects.
When do cicadas stop making noise at night exactly?
It’s difficult to assign a universal ‘stop time,’ but the general pattern is consistent:
🕐 Morning to afternoon
Most cicadas begin singing late in the morning once the sun has warmed the air, growing louder into the afternoon.
🕕 Evening to dusk
Activity peaks near sunset as the heat lingers. For example, Megatibicen auletes – one of the loudest annual cicadas – is known to sing for about 30 minutes around sunset.
🕘 After dark
By nightfall, the chorus fades. Unless there’s artificial light or extreme heat, cicadas go silent soon after sunset.
In other words – in most parts of the country, the buzzing stops within an hour of sundown.
Regional patterns across the United States
Different parts of the US experience slightly different cicada behavior due to climate and environment. Here’s how it generally breaks down:
1. The South and Southeast (e.g. Texas, Florida, Georgia)
Warm, humid nights mean cicadas may sing later here than in cooler states. Even after sunset, temperatures often remain above 80°F (27°C), keeping cicadas active longer. Residents in southern states sometimes report hearing faint buzzing as late as 9 or 10 pm on especially warm nights.
2. The Midwest and Great Plains
Cicada activity here is classic – loud during the day, loudest in late afternoon, then quiet soon after sunset. When temperatures drop below 70°F (21°C) at dusk, the cicadas slow down almost instantly. During cool evenings or storms, the chorus may stop even earlier.
3. The Northeast
In East Coast states like Pennsylvania, New York, and New Jersey, where summer nights can cool quickly, cicadas usually stop by dusk. However, when periodical cicadas (the famous Broods) emerge, their calls can extend a bit longer in the evening simply because of their sheer numbers.
4. The West and Southwest
In desert or high-altitude areas like Arizona, cicadas may follow unique patterns. Some species – such as the Apache cicada (Diceroprocta apache) – are known to call later in the day or even at dusk, taking advantage of lingering warmth before desert nights cool rapidly.
Overall, American cicadas are primarily daytime singers, but the local climate can stretch or shorten their evening performance.
Tips for dealing with cicada noise
If cicadas are making it hard to enjoy quiet evenings, there are a few strategies that can help:
👉 Close windows at dusk
Most cicadas stop soon after sunset, so shutting windows around that time can block the last of the noise.
👉 Reduce outdoor lighting
Turn off porch or garden lights, which can confuse cicadas and extend their calling period.
👉 Mask the sound
A fan, white-noise machine, or air conditioner can help blend out the background hum until the cicadas naturally stop.
👉 Be patient
Cicada seasons are temporary. Annual cicadas are around for just a few weeks, while periodical broods are loud but short-lived.
