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See the moon phase on iPhone with the built-in apps

Yes: since iOS 17, the Weather app has a Moon section with the current phase, moonrise and moonset, and a calendar of the month. Open Weather, scroll to the bottom of a location, and tap the card with the Moon.

Facts checked October 2026

Saturday, October 3

Last Quarter

53.42% illuminated

The Moon in the Weather app

  1. Open Weather on the location you want, usually My Location.
  2. Scroll to the bottom: the Moon card is titled with the current phase. It shows the illuminated fraction, the next moonrise or moonset, and the days until the full moon.
  3. Tap it for the detail: a timeline through the day, the distance to the Moon, the days until the full moon, and a calendar of the month's phases.

Checked against Apple's documentation for iOS 27, on 2 October 2026.

Weather app or a moon app

The table compares Apple's Weather app with Plenilune, the lunar almanac app I make, on what people usually ask of a moon app.

Weather app
Plenilune
Phase and illuminated fraction✓ Yes✓ Yes
Moonrise and moonset✓ Yes✓ Yes, for your location
Month calendar✓ Yes, in the detail view✓ Yes, a phase on each day
Full moon name✗ No✓ The twelve traditional names
Home screen widget with the Moon✗ No✓ Small and medium
Lock screen widget✓ Moon widget✓ Phase, and moonrise and moonset
Full moon notification✗ No✓ Yes, free
Works without network✗ No, it needs a connection✓ Yes, computed on the iPhone

If Weather gives you what you need, keep it. A moon app adds the widget on the home screen, the name of each full moon and a notification when it comes. For the phases in the calendar you already use, a subscribed calendar is free.

Other places Apple shows the Moon

  • Weather on Mac and iPad: the same Moon section.
  • Lock screen: Weather's Moon widget, or the Astronomy wallpaper, whose Moon view follows the current phase. Touch and hold the lock screen, tap +, then Astronomy. If Astronomy is missing, scroll down and tap Get.
  • Apple Watch: the Moon complication, which shows the next moonrise or moonset in a corner, and the Astronomy and Lunar faces. The Weather app on the watch has no Moon view.

Questions

Does the Weather app have a moon widget?
On the lock screen, yes: Weather has a Moon widget. On the home screen, no: its widgets show the forecast, so the phase there needs a moon app's widget.
Why doesn't my iPhone show the moon phase on the lock screen?
Nothing shows it by default. Add Weather's Moon widget to the lock screen widget row, pick the Astronomy wallpaper with its Moon view, or use a moon app's widget, which can add the name of the full moon.
Is the Weather app's moon data accurate?
Yes, for everyday use. Phase times come from the same celestial mechanics in every serious app and agree to the minute. Rise and set times can differ by a few minutes, because each app uses its own horizon model and exact location.