iPhone Alarm Not Going Off or No Sound? 12 Fixes (2026)

Short answer

Most silent iPhone alarms come down to four settings. Raise the Ringtone and Alerts slider in Settings > Sounds & Haptics (that's your alarm volume, not the media volume). Make sure the alarm's Sound isn't "None" in Clock > Alarms > Edit. Turn off Attention Aware Features so the alarm doesn't get quieter when you look at the phone. And if it's your Sleep schedule alarm, its sound and volume are set separately in the Health app. Then set a test alarm for two minutes from now.

Few things are worse than waking up on your own, checking the time and realizing your alarm never rang. Or it did, but so quietly it barely counted. The good news: the Ring/Silent switch, the Action button and Do Not Disturb are not the reason. Apple's Clock alarms are designed to ring through all three. The cause is almost always one setting that changed without you noticing, often after an iOS update. Work through the fixes below in order; most people are done by fix 4.

Find your symptom first

What happened	Most likely cause	Go to
Alarm screen showed up, but no sound, only vibration	Sound set to None, or volume at zero	Fix 2, Fix 1
Alarm is very quiet even with the volume up	Attention Aware, or the ringer slider (not media volume) is low	Fix 3
Alarm starts loud and gets quiet	Attention Aware lowers it when you look at the screen	Fix 3
The "Wake Up" alarm was soft or a different sound	Sleep schedule alarm has its own sound and volume	Fix 4
No vibration while charging on a stand	StandBy turns off alarm haptics	Fix 5
Nothing at all happened	Alarm off, wrong AM/PM or day, phone off, time settings	Fixes 7–12

Fixes 1–6: iPhone alarm has no sound or is too quiet

1. Raise the right volume: Ringtone and Alerts

Your iPhone has two separate volumes. The one you hear in videos and music is media volume. Your alarm uses the ringer and alerts volume. A video can be blasting while your alarm is set almost to zero.

Open Settings > Sounds & Haptics.
Drag the Ringtone and Alerts slider most of the way up. iPhone plays a sample so you hear the level.
Optional: turn off Change with Buttons. Then the side buttons only change media volume, and you can't lower your alarm by accident while watching something in bed.

You can also press the volume buttons while an alarm is ringing to make it louder or softer.

On iOS 27, alarms can have their own volume: turn off Match Ringtone Volume under Alarms and Timers in the same menu and use the new slider. Step by step in how to change alarm volume on iPhone.

2. Check the alarm's sound isn't "None"

If an alarm only vibrates, its sound is probably set to None. This happens more than you'd think, because None sits at the top of the list.

Open Clock > Alarms and tap Edit.
Tap the alarm, then Sound.
Pick a ringtone (the classic, loud ones are under Ringtones, not Classic), then tap Back and Save.

Using a song from Apple Music? If the song was removed from your library, or your subscription lapsed, the alarm may fall back to a quieter default or no sound. A built-in ringtone is the safest choice for important mornings. (Want a song anyway? See how to set a song as your alarm.) Also check Haptics on the same screen if you want vibration too.

3. Turn off Attention Aware Features (quiet alarm, volume up)

This is the classic cause of "my iPhone alarm is quiet even at full volume." On iPhones with Face ID, Attention Aware Features lowers the volume of alerts, including alarms, when the phone sees you looking at the screen. If you sleep with the phone near your face, or grab it the moment it rings, it can drop to a whisper.

Open Settings > Face ID & Passcode (or Settings > Accessibility > Face ID & Attention).
Turn off Attention Aware Features.

Your screen may now dim on schedule even when you're reading, so this is a trade-off. For heavy sleepers it's usually worth it.

4. Fix the Sleep schedule "Wake Up" alarm separately

The alarm under Sleep | Wake Up at the top of Clock > Alarms is not a normal alarm. It belongs to your Sleep schedule in the Health app, and it has its own sound, its own volume slider and a snooze switch. Many people have their regular alarms set loud and this one set soft without knowing.

In Clock > Alarms, tap Change next to Sleep | Wake Up (or open Health > Browse > Sleep > Full Schedule & Options).
Make sure Wake Up Alarm is on.
Pick a Sound and drag its volume slider up, then tap Done.

Also note: if you skipped your schedule for the next day ("Skip next alarm" or editing just tomorrow), that alarm won't ring once.

5. Charging in StandBy? Haptics are off

When your iPhone is charging on its side in StandBy mode, Apple turns off alarm vibration. The sound still plays, so this matters mostly if you rely on vibration (for example with the volume low so you don't wake a partner). Either charge it flat at night or raise the alarm volume.

6. Headphones, AirPods or a speaker connected

According to Apple, when headphones are connected the alarm plays through the iPhone's built-in speaker as well as the headphones. But people still report alarms that seemed to go to a car stereo or Bluetooth speaker in another room, especially with older accessories. Before bed, open Control Center and disconnect anything you don't need, or turn Bluetooth off overnight if it's not used for a watch.

Can't afford to miss tomorrow? Ask a friend to set a backup alarm on your phone with PingPal. It rings even on silent.

Fixes 7–12: iPhone alarm didn't go off at all

7. Check the alarm is on, with the right AM/PM and days

Sounds obvious, but it's the most common cause. Open Clock > Alarms and look for:

The toggle is green. An alarm without Repeat turns itself off after it rings once.
AM vs PM. 6:30 PM looks a lot like 6:30 AM at midnight.
Repeat days. An alarm set for "Weekdays" won't ring on Saturday.
Duplicate alarms. If you have ten alarms at similar times, delete them and make one or two you trust.

8. Keep the phone on and charged

An iPhone alarm won't ring if the phone is switched off or the battery died overnight. Plug it in before bed. If the cable or charger is flaky, check the battery icon after you plug it in, not just the cable.

9. Leave Date & Time on "Set Automatically"

Apple warns that changing the time manually (for example to skip timers in a game) can make alarms misbehave. Go to Settings > General > Date & Time and turn on Set Automatically. Traveling? Your alarms follow the local time of wherever the phone thinks it is, so a 7:00 alarm rings at 7:00 local time after you land.

10. Restart the iPhone

If the settings all look right and the alarm still failed, a restart clears stuck audio or Clock processes. Press and hold a volume button and the side button, slide to power off, wait 30 seconds and turn it back on.

11. Update iOS, then recheck your settings

Several iOS releases have had alarm bugs that a later update fixed, so go to Settings > General > Software Update. After a big update, check fixes 1–4 again: updates sometimes turn Attention Aware back on or change default sounds.

12. Delete and recreate the alarm

A corrupted alarm can fail even when everything else is fine. Delete it (swipe left in Clock > Alarms), create a new one with a built-in ringtone, and test it. If nothing helps, including a test alarm with the speaker clearly working, contact Apple Support: the speaker itself may be the problem.

How to test your alarm tonight (2 minutes)

Set a new alarm for two minutes from now with a built-in ringtone.
Put the phone face down where you sleep, on silent, in Sleep Focus if you use it.
Don't look at it. When it rings, check the volume without picking it up.
Repeat with your real wake-up alarm's sound, then delete the test alarm.

This catches almost every problem above in one go: volume, sound, Focus, Attention Aware and Bluetooth.

A backup for mornings you really can't miss

Even with perfect settings, a single alarm on a single phone is a single point of failure. For an exam, a flight or a first day at work, add a second layer:

A second device: an old phone, a tablet or a cheap alarm clock across the room.
A wake-up task: apps that make you solve something or walk to scan a code before the alarm stops. We compare them in the best alarm apps for heavy sleepers.
A person: ask a friend or partner to wake you. With PingPal, they set an alarm on your phone from theirs, it rings even on silent or Do Not Disturb, and they can ask for a quick selfie so they know you're up. It works between iPhone and Android, and it doesn't depend on the Clock settings you just fixed.

If you keep sleeping through alarms that clearly ring, the problem isn't the phone. See why you sleep through your alarm and how to stop.

FAQ

Why is my iPhone alarm not making a sound?

Usually the alarm's sound is set to None (it only vibrates) or the Ringtone and Alerts slider in Settings > Sounds & Haptics is very low. Media volume doesn't control alarms.

Does the iPhone alarm ring on silent?

Yes. Clock alarms ring even with the Ring/Silent switch or Action button set to silent, and in Do Not Disturb or Sleep Focus. Notifications and reminders don't; only alarms do.

Why is my iPhone alarm so quiet even though the volume is up?

Attention Aware Features lowers alert volume when you look at the phone. Turn it off in Face ID & Passcode. Also check that you raised the ringer slider, not media volume, and that your Sleep schedule alarm has its own volume turned up.

Why does my iPhone alarm only vibrate?

The sound for that alarm is set to None, or the ringer volume is at zero. Edit the alarm in the Clock app and pick a ringtone.

Will my alarm go off if my iPhone is off or dead?

No. The phone has to be on. Charge it overnight if your battery runs low.

Will my alarm ring through my AirPods?

Apple says the alarm plays through the iPhone's speaker as well as connected headphones. To be safe, disconnect Bluetooth speakers and car audio before you sleep.