Meteor shower execution guide
Lyrids 2027: Plan Around Two Candidate Overnight Windows
Direct answer
The 2027 Lyrids are active April 14-30. NASA labels April 22-23 and the American Meteor Society labels April 21-22 as peak nights; the sources reviewed do not establish an exact maximum instant or explain the difference. Treat these as two adjacent candidate overnight windows spanning April 21-23, not a precise peak prediction.
The 2027 Lyrids begin April 14. The exact maximum is unresolved; check the two source-labeled candidate overnights and local conditions closer to the date.
By The Star Window · Fact checked 2026-10-15 · Accountability and corrections
Active: April 14-30, 2027
Peak timing: Unresolved: NASA and AMS label adjacent nights; no exact maximum is assigned here
Planning nights: Compare April 21-22 and April 22-23 overnight, then use local Moonset and forecast information
Moon: At the USNO instant Apr. 20, 2027 22:27 UTC (5:27 p.m. CDT), Chicago (41.8781° N, 87.6298° W; America/Chicago) has 99.8% illumination and -25.5° geometric altitude, computed with Skyfield/DE421.
Expected activity: No 2027 hourly rate or personal meteor count is promised
Best suited to: Northern Hemisphere favored, including much of the U.S. under dark skies
2027 activity timeline
Activity dates are source-backed; adjacent candidate nights are not a precise maximum prediction.
- Apr. 14NASA and AMS activity period begins
- Apr. 21-22 overnightAMS-labeled candidate peak night
- Apr. 22-23 overnightNASA-labeled candidate peak night
- Apr. 30NASA and AMS activity period ends
NASA and AMS label adjacent candidate overnight windows and do not provide a precise maximum instant on the reviewed pages. USNO phase time is UTC; local Moonset varies by location.
Two adjacent candidate nights, not an exact maximum
Keep both source labels visible
NASA labels April 22-23 as the peak night, while the American Meteor Society labels April 21-22. The reviewed pages do not provide a precise maximum instant or explain whether the night labels differ only because of time-zone convention. Plan around both adjacent overnight windows rather than choosing an unsupported exact date or hour.
These dates are planning references, not a guarantee that activity will be strongest at a particular local clock time. Keep a broad, open view of the sky and allow for quiet periods.
Moonlight near the candidate windows
A full phase does not determine local Moon overlap by itself
At the exact USNO phase reference, April 20, 2027 at 22:27 UTC (5:27 p.m. CDT), Chicago (41.8781° N, 87.6298° W; America/Chicago) has 99.8% Moon illumination and geometric altitude -25.5°, computed with Skyfield and JPL DE421. For the two candidate nights, the same calculation puts Moonrise at 9:06 p.m. CDT Apr. 21 (98.3% illuminated) and 10:14 p.m. CDT Apr. 22 (94.6% illuminated); the Moon remains above the horizon through the respective predawn windows at this reference point. Local times vary.
Clouds, haze, smoke, skyglow and obstructions can also limit what you see. This page does not provide a long-range local forecast.
Where and how to watch
Northern observers are favored; local conditions still decide
The American Meteor Society says the Northern Hemisphere is favored; observers farther south may see lower activity. No location-independent rate or visibility guarantee is made here.
No telescope is needed for meteor watching: use unaided eyes to cover a wide area of sky, get comfortable, and avoid direct lights. Check a local cloud forecast closer to either candidate night and choose only a legal, accessible place with a clear view.
2026 historical reference
Preserved context; not a 2027 forecast
The prior Lyrids page recorded the 2026 source references, including an IMO-listed maximum on April 22, 2026 at 19:40 UTC and the AMS April 21-22 overnight label. Those timing references belong to 2026 and must not be carried forward as the 2027 maximum.
What to do next
Use the event date now; recheck local conditions when the forecast is available.
Compare both candidate overnights after checking local Moonset and a current forecast close to the date. The date labels do not establish an exact maximum, and this page cannot promise clear weather or a personal meteor count.
Lyrids 2027 FAQ
Source-labeled activity and planning guidance; maximum timing remains unresolved
When do the 2027 Lyrids peak?
NASA labels April 22-23 and AMS labels April 21-22. The reviewed sources do not establish a precise maximum instant or explain the difference, so compare both adjacent overnights.
When are the 2027 Lyrids active?
NASA and AMS list April 14-30, 2027. This is the activity period, not an exact prediction of the strongest local hour.
Will the Moon interfere?
At the exact USNO phase reference, Apr. 20, 2027 at 22:27 UTC (5:27 p.m. CDT), Chicago (41.8781° N, 87.6298° W; America/Chicago) has 99.8% Moon illumination and geometric altitude -25.5°, computed with Skyfield/JPL DE421. The Moon rises at 9:06 p.m. CDT Apr. 21 (98.3%) and 10:14 p.m. CDT Apr. 22 (94.6%) for the two candidate nights; local times vary.
Where are the Lyrids best seen?
AMS favors the Northern Hemisphere and says lower activity is possible farther south. Your local horizon, sky brightness, Moon, clouds and viewing time affect visibility.
Do I need a telescope or can you promise clear skies?
No telescope is needed; unaided eyes cover a wider sky. No forecast or personal count is promised. Check local weather near the date.
Sources and limitations
Facts last reviewed 2026-10-15
NASA and AMS label adjacent candidate peak nights but the reviewed pages do not establish a precise maximum instant or reconcile the difference. USNO gives a UTC lunar phase time, not local moonset. Visibility, weather, access and personal counts remain location- and condition-dependent.
- NASA Science: Lyrids - 2027 activity dates, April 22-23 peak-night label, Northern Hemisphere context and after-moonset/before-dawn observing advice.
- American Meteor Society Meteor Shower Calendar - 2027 activity dates, April 21-22 peak-night label and hemisphere guidance.
- U.S. Naval Observatory Moon Phases, 2027 - Full Moon phase at April 20, 2027 22:27 UTC; not a local moonset time.