The sky of May 2026: clear nights, the Pleiades, and the newborn Milky Way

The evenings of May 2026 invite us to look up. Days grow longer, temperatures become milder, and the air—often clear—makes the sky exceptionally transparent after sunset. It’s the perfect season to extend nighttime observations without biting cold or excessive humidity. Between the final winter constellations fading away and the iconic summer constellations rising in the east, May offers a transitional spectacle: the Pleiades glide toward the western horizon, and the Milky Way slowly begins to reveal its silvery expanse.

Planets to observe in May

At dusk, Venus still shines low in the western horizon at the very beginning of the month. It gradually disappears into the solar glow, beginning its inferior conjunction in June. Mercury, on the other hand, makes a brief appearance in the morning sky from mid-May onward. To observe it, you’ll need to rise early and look for a very low, bright point in the east, about an hour before sunrise.

Higher in the night sky, Mars remains discreet but gains visibility in the second half of the month. Reddish and more subdued than last year, it can be found in the constellation of Pisces before dawn. Jupiter, brilliant, rises around midnight and dominates the sky in the second half of the night: it is the most spectacular planet for telescope observers. Its cloud bands and Galilean satellites remain prime targets. Saturn follows soon after, shining in Aquarius, displaying its ring now tilted nearly edge-on—a rare and fascinating sight to rediscover this year.

Seasonal constellations: between winter and summer

The zenith of May is dominated by Leo, its characteristic triangle and sickle-shaped asterism ruling the evening. In the west, Gemini and Taurus (the Bull) slowly retreat. This is your last chance to admire the Pleiades, this cluster of bluish stars sinking toward the horizon early in the evening. To the south, Corvus and Virgo frame Spica, the brightest star in the region.

Toward the east, the harbingers of the beautiful season already appear: Scorpius and Sagittarius herald the gradual rise of the Milky Way. By month’s end, its faint arch can be seen traversing the southeastern sky after midnight. This is the time to locate the densest regions of our galaxy, easily identifiable from a dark site. A pair of binoculars is enough to resolve dozens of star clusters and diffuse nebulae, especially in the Scorpius region.

Meteor showers and stardust

After the beautiful display of the April Lyrids, May’s meteor showers are more subdued—but not nonexistent. From May 6 to 8, watch for the Eta Aquariids, debris left by Halley’s Comet. Although this shower favors the Southern Hemisphere, some of its swift meteors can be seen from France, especially at dawn when the radiant rises in the east.

Toward month’s end, the Scorpiids and Ophiuchids become active: though few in number, these meteors stand out for their slowness and orange glow. As is often the case, a moonless sky and observation from a dark site are essential to enjoy them.

Lunar phases in May 2026

New Moon occurs on May 8, making the nights before and after ideal for observing the emerging Milky Way and deep-sky objects. First Quarter falls on May 16, and Full Moon on May 23. Lunar light will then illuminate the night, but it is also an excellent time to admire lunar terrain through a telescope, especially the Sea of Crises and the well-defined terminator.

Last Quarter occurs on May 31, when the Moon shares the morning sky with Mars and Jupiter in a photogenic conjunction not to be missed.

Celestial events of the month

The month features numerous planetary conjunctions and notable passages. On May 13, the thin crescent Moon crosses Mercury at dawn, but the angular separation is small, making observation challenging without a clear horizon. On May 18, Jupiter and the Moon draw close in the pre-dawn sky: a brilliant pair to admire with the naked eye or binoculars.

Finally, several International Space Station (ISS) passes will be visible in the evening during the second half of the month. Check local forecasts a few days in advance for precise times: the brightest passes often reach impressive magnitude, moving swiftly from west to east like a steady, non-falling star.

Observation tips

May is the perfect month to take your instrument outside: pleasant temperatures and nights still deep before the short nights of June. If you don’t have a telescope, simple binoculars suffice to discover many celestial objects: the Pleiades in the west, open clusters in Cancer (such as the Beehive), and diffuse nebulae in Sagittarius toward night’s end. Settle in comfortably, move away from urban lights, and allow your eyes at least 15 minutes to adapt to the dark to see the faintest details.

For astrophotographers, the moonless nights of the first half of the month offer excellent conditions to capture images of the emerging Milky Way or Jupiter at sunrise. A well-aligned equatorial mount and a camera capable of long exposures are already sufficient to produce spectacular images without complex equipment.

A spring beneath the stars

May 2026 truly marks the return of friendly, starlit nights. Between lingering daytime warmth and the scent of early foliage, each evening becomes an invitation to look up. Whether you’re a beginner or a seasoned enthusiast, let yourself be guided by Spica’s calm twinkle, the gentle glow of the Milky Way along the horizon, and the promise of an abundant astronomical summer ahead. This May is a transitional moment, a gateway to the great observing nights of the year. So take time to gaze upward: the sky is waiting for you.