May Stargazing Near Pune & Mumbai

May is the gateway month — Milky Way season officially begins, the Eta Aquariids bring Halley's Comet debris streaking across the sky, and 2026 delivers a rare Blue Moon on May 31. The downside: pre-monsoon heat builds, and cloud cover starts increasing toward month's end. Plan early in May for best results.

Sky Conditions in May

Cloud cover: ~35% — Good (worsens toward end of month)
Humidity: High (65–80%)
Temperature at night: 22–30°C — warm, humid
Milky Way: Core rises by 11 PM in late May — season begins!
Best window: May 1–20 (before pre-monsoon clouds build)

May 2026 Celestial Events

May 5–6: Eta Aquariids Meteor Shower (Peak)

The Eta Aquariids are debris from Halley's Comet — every particle that burns up as a meteor is a fragment of the most famous comet in history, some pieces possibly thousands of years old. This shower is one of the best of the year for the Southern Hemisphere, and very good for India too.

Why India gets excellent Eta Aquariid views: The radiant (Aquarius) rises high in the east before dawn from tropical latitudes. Maharashtra, sitting at ~18–19°N, gets Aquarius rising to a useful height by 3 AM.

Expected rate from Maharashtra: 30–50 meteors per hour before dawn on the peak night
Characteristics: Fast meteors (66 km/s), long persistent trains, often glowing green
Best time: 2 AM–5 AM, looking southeast

Viewing tips:

• Don't look directly at Aquarius — look about 45° away from the radiant where trails appear longer
• These are dawn shower meteors — your alert is pre-dawn, not midnight
• Book a Pawna or Velhe stay on May 4 night — you'll be perfectly placed

May 31: Full Blue Moon

A Blue Moon is the second full moon in a single calendar month. May 2026 starts with a full moon (around May 1) and ends with another on May 31. The Moon won't actually appear blue — the name is an idiom for "rare occurrence." It's a photogenic full moon, great for landscape astrophotography but terrible for dark-sky viewing.

Photography tip: Photograph the Blue Moon rising over Sahyadri peaks or over Pawna Lake at moonrise — orange and huge near the horizon.

Milky Way Season Begins

By late May, the galactic centre (in Sagittarius) rises above the horizon by 11 PM–midnight from Maharashtra. This is the moment stargazers wait for all year.

What to look for: A dense, bright band rising from the southeast. The galactic centre region (toward Sagittarius) is the brightest part — visible even from moderate light pollution. The dark lane (Great Rift) splits the band from Cygnus to Sagittarius.

Best window in May: New moon around May 13–15. Those nights, with the galactic centre rising by 11 PM, are your first proper Milky Way nights of 2026.

What's in the May Sky

Scorpius Rising

Scorpius — one of the most dramatic constellations — rises in the southeast in May. The red supergiant Antares (meaning "rival of Mars" for its red colour) is unmistakable at the Scorpion's heart. The curving tail and sting of the scorpion are visible from dark southern horizon sites.

Venus Reaching Greatest Elongation

Venus is prominent in the evening sky in May, shining brilliantly in the west after sunset. Through binoculars or a small telescope, it shows a gibbous phase (like a half-moon, because Venus is between us and the Sun's direction).

Jupiter Moving Toward Solar Conjunction

Jupiter is getting lower in the west as it approaches solar conjunction (passing behind the Sun). It disappears from evening skies in May–June and will return to morning skies later in the year.

Pre-Monsoon Viewing Strategy

May requires flexibility. Check weather forecasts 48 hours in advance:

• Clear days following dry spells: Usually produce excellent nights
• Hot, humid days (35°C+): Often lead to hazy nights with poor transparency
• Thunderstorm days: Nights after afternoon thunderstorms can be surprisingly clear

Best locations in May: Elevated sites (Velhe at 750m, Rajmachi at 820m) tend to be clearer than valley sites as pre-monsoon cloud builds in valleys first. Velhe in early May is outstanding.

Photography in May

Eta Aquariids: Same approach as other meteor showers — wide-angle, long continuous shooting 2–5 AM.

First Milky Way photos of the year: Late May new moon nights are prime. Shoot from 11 PM–3 AM toward the southeast. The galactic centre is rising, giving a dramatic "Milky Way arch rising over the Sahyadri" composition.

Settings: ISO 3200–6400, 14–24mm at f/2.8, 15–25 second exposures. Stack 20–30 frames for a clean result.

May is also firefly season in Mulshi and Bhimashankar. Combining firefly viewing with Milky Way rising is one of Maharashtra's most magical natural experiences.