Perseids 2027
The peak falls on Friday 13 August 2027 at 08:19 UTC, with the Moon 87% lit — a bright sky — a near-full Moon will leave only the brightest meteors visible.
- Peak instant
- Moon at peak
- 87% lit, waxing gibbous
- Active
- 17 July 2027 – 24 August 2027
- Zenithal hourly rate
- 100
- Radiant declination
- +57.9°
- Rank for Moon in 2027
- 9 of 12
What 2027 actually offers
Of the twelve showers on this site, 8 peak under a darker Moon in 2027. The darkest peak of the year belongs to the eta-Aquariids, with the Moon 0% lit. Moonlight does not remove meteors, it removes the faint ones: with a population index of 2.2, every magnitude of extra sky brightness divides the count you see by 2.2.
The radiant passes overhead at 57.9°N and never rises at all south of 32.1°S. That geometry does not change from year to year, so if this shower does not work from your latitude, no amount of moonless sky will fix it — check the latitude table before making plans around the date.
What is not knowable this far out is cloud. Numerical forecasts are useful inside about three days and steadily less so beyond that, which is why the verdict for a specific night is computed on the night from your own coordinates rather than published in advance.
The Moon across the whole activity window
- full Moon 18 July 2027 15:45 UTC
- last quarter 26 July 2027 16:55 UTC
- new Moon 2 August 2027 10:05 UTC
- first quarter 9 August 2027 04:54 UTC
- full Moon 17 August 2027 07:29 UTC
The week around the peak
Moon illumination on each date at 00:00 UTC. Rate falls away either side of the peak, so a much darker sky two nights out is only worth taking when the activity window is broad — this one runs 17 July – 24 August.
| Date | Weekday | Moon lit | Phase |
|---|---|---|---|
| 10 August 2027 | Tuesday | 58% | first quarter |
| 11 August 2027 | Wednesday | 68% | first quarter |
| 12 August 2027 | Thursday | 77% | waxing gibbous |
| 13 August 2027 peak | Friday | 84% | waxing gibbous |
| 14 August 2027 | Saturday | 90% | waxing gibbous |
| 15 August 2027 | Sunday | 95% | waxing gibbous |
| 16 August 2027 | Monday | 98% | full Moon |
Get reminded before the 2027 peak
One email seven days before a peak so you can keep the night free, and one on the evening itself with the verdict for your location. If your sky is going to be hopeless that night, the second email tells you the next good night instead of pretending otherwise.