NightSkyCast
clear sky forecast & light pollution map for stargazing
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NightSkyCast (nightskycast.com) is a free sky forecast for stargazers and astrophotographers. On one map it shows hour‑by‑hour cloud cover by layer (low, mid and high clouds), humidity, dew, wind and temperature, a Bortle light‑pollution map, the Moon phase and moonrise, and a 0–10 night score for any spot on Earth — so you can see whether tonight will be clear and where to drive for a dark sky.
PH · launched Oct 30, 2026 · 1 upvote (top 67%) · 0 views
Niche: stargazing and astronomy weather apps · 90 launches, 12 in the last 7 days ▼ -29% · Explore this niche →
Category and tags
- Horizontal
- Analytics & BI
- B2C
- Not AI
- Commercial product
- Productivity
- Artificial Intelligence
- Maps
Visit website ↗ Source listing ↗
More like this: all 90 launches in stargazing and astronomy weather apps →
Could you build this?
Yes Hourly cloud layers, humidity, wind, and moon data come from existing weather APIs such as Open-Meteo, and Bortle light pollution data is available as public raster tiles. The night score is a heuristic that one builder can design.
Competitors
Other products that read as similar to this one : 175 launches clear the similarity bar, closest 8 shown.
Attention rank: #97 of 176 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 354 days after the earliest competitor.
- vemmsunj · ph · 2026-10-19 · 2 upvotes · similarity 0.55
- AstroNight: Astrophotography · ph · 2026-10-20 · 2 upvotes · similarity 0.52
- Golden Hour · ph · 2026-11-08 · 1 upvotes · similarity 0.51
- Nightwatch · hn · 2026-10-04 · 87 upvotes · similarity 0.50
- linecast · hn · 2026-08-23 · 9 upvotes · similarity 0.49
- Stelar Map Studio · ph · 2026-10-10 · 1 upvotes · similarity 0.49
- AstraScope — Explore. Plan. Observe. · ph · 2026-09-22 · 1 upvotes · similarity 0.46
- SkyyCast · ph · 2026-10-07 · 1 upvotes · similarity 0.45
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.