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Sunny Hours – an iPhone weather app with a sunshine heatmap

Sunny Hours – an iPhone weather app with a sunshine heatmap

by ahallan·Mar 14, 2026·1 point·0 comments

AI Analysis

MidCozySlick

Nice sunshine heatmap UX but Apple Weather and Carrot already solve this.

Strengths
  • Sunshine-first heatmap view cuts through forecast clutter for quick glance decisions.
  • No data collection — privacy-respecting in an era of weather app data harvesting.
Weaknesses
  • Weather apps are extremely crowded — Apple Weather, Carrot, Dark Sky alternatives exist.
  • One rating, no technical differentiation beyond UX choices on existing weather data.
Category
Target Audience

iPhone users in cloudy climates planning outdoor activities

Similar To

Carrot Weather · Apple Weather · Tomorrow.io

Post Description

Hi,

I’m a long-time HN reader, though I don’t post much.

I recently built an iPhone app called Sunny Hours. Living in the UK, I’ve often wanted a weather app that shows, at a glance, when the sun is actually likely to be out.

I built it because I found that existing apps often gave me lots of forecast data, but not a quick answer to a simple question: when is the nicest part of the day/week likely to be?

So the app is built around a sunshine-first view to make that easier to see.

It’s still early, but the app is live and usable now. I’d really appreciate feedback on whether the sunshine-first view is useful, whether the heatmap is intuitive, and what feels missing.

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