Live Sky Report
What Can I See in the Sky Tonight in San Isidro, San José, Costa Rica?
New Moon moon at 0%, Venus shines at magnitude -4.4. Calculated for 9.37°, -83.70° (America/Costa_Rica).
Visible planets tonight
Venus, Jupiter, Mercury, Saturn, Mars — brightest: Venus at mag -4.4 in Virgo
🔭 Tonight's Sky Report
📍 San Isidro, San José, Costa Rica — Wednesday, August 12
Tonight's sky above San Isidro, San José, Costa Rica
San Isidro, San José, Costa Rica's sky tonight is a real, computable state — every value on this page comes from live NOAA space weather data, live orbital elements for the ISS, and astronomy-engine's ephemeris for the Sun, Moon, and planets.
Above San Isidro, San José, Costa Rica tonight (9.37°, -83.70°), expect a new moon moon at 0% illumination. The night gives 9.1 hours of true astronomical darkness. At 9.4°, aurora needs a strong storm — roughly Kp 9 or higher — to reach San Isidro, San José, Costa Rica.
Local sky character in San Isidro
Tropical / equatorial latitudes · northern hemisphere · 713 m elevation
- The north celestial pole stands 9.4° above the horizon, so stars within 9° of it never set from here.
- About 58.1% of the whole sky rises above the horizon at some point in the year from this latitude.
- The Milky Way's core in Sagittarius culminates about 51.6° up, clearing the horizon haze comfortably.
- The Large Magellanic Cloud only reaches about 10.9° altitude, so it is a low, seasonal target rather than a year-round one.
- At 713 m elevation, roughly 8% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.
San Isidro is small enough that local light domes are limited — on a clear, moonless night the Milky Way is realistically within reach.
Best nights this month in San Isidro
Calculated for these coordinates and today's date — not a fixed list.
- 2026-08-12 — Darkest night of the coming month
The Moon is only 0% illuminated, giving the least lunar interference in the next 30 nights — the best window for the Milky Way and faint deep-sky targets from San Isidro, San José, Costa Rica.
- 2026-08-12 — Perseids peak — up to 100/hour
Radiant in Perseus. Favours the Northern Hemisphere, which includes San Isidro, San José, Costa Rica. The Moon is 2% lit on peak night, so lunar interference is none.
- 2026-08-27 — Full Moon
A 100%-lit Moon washes out faint objects, but lunar terrain along the limb is at its most striking — plan bright targets and planets instead of deep sky.
San Isidro, San José, Costa Rica stargazing questions
- What can I see in the sky tonight from San Isidro, San José, Costa Rica?
- Tonight from San Isidro, San José, Costa Rica expect a new moon Moon at 0% illumination, with these naked-eye planets above the horizon after dark: Venus, Jupiter, Mercury, Saturn, Mars. The night offers about 9.1 hours of true astronomical darkness.
- Can I see both northern and southern constellations from San Isidro, San José, Costa Rica?
- Yes — this is the real advantage of an equatorial location. At 9.4° N, about 58.1% of the entire celestial sphere rises at some point in the year, so Polaris-side constellations and the Southern Cross region are both reachable across the seasons.
- How good is the Milky Way from San Isidro, San José, Costa Rica?
- The Galactic Centre culminates around 51.6° above the horizon from here, high enough to clear most horizon haze. Local cloud and humidity, not geometry, are usually the limiting factor at tropical latitudes.
- Are there seasons for stargazing in San Isidro, San José, Costa Rica?
- Night length barely changes at this latitude — twilight is short and the Sun sets steeply, so darkness arrives quickly all year. What changes is which part of the sky is on view after sunset, and, in monsoon-affected regions, how often the sky is clear at all.
- How dark does it actually get in San Isidro, San José, Costa Rica tonight?
- About 9.1 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.
Nearby cities
Real great-circle distance from San Isidro, San José, Costa Rica.
- Sky tonight in Mercedes, San José, Costa Rica17 km
- Sky tonight in Buenos Aires, Puntarenas Province, Costa Rica45 km
- Sky tonight in Quepos, Puntarenas Province, Costa Rica52 km
- Sky tonight in Paraiso, Cartago Province, Costa Rica56 km
- Sky tonight in Turrialba, Cartago Province, Costa Rica60 km
- Sky tonight in Cartago, Cartago Province, Costa Rica60 km
More in San José
Other sky reports in the same region.
Sky tonight across Costa Rica
Other cities in Costa Rica with live sky reports.
- Sky tonight in Siquirres, Limón Province84 km
- Sky tonight in San Francisco, Heredia Province84 km
- Sky tonight in Pocora, Limón Province90 km
- Sky tonight in Alajuela, Alajuela Province92 km
- Sky tonight in Guapiles, Limón Province95 km
- Sky tonight in Limon, Limón Province100 km
- Sky tonight in Atenas, Alajuela Province101 km
- Sky tonight in Golfito, Puntarenas Province106 km
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