Clear Outside 4+

First Light Optics

Designed for iPhone

    • Free

iPhone Screenshots


Reliable weather forecasts for astronomers with an emphasis on cloud cover.

Features include:

• Seven day hourly forecasts, updated hourly.
• Low, medium, high and total cloud cover.
• Moon rise/set times and phase.
• Sun rise/set and transit.
• Civil/nautical/astronomical darkness.
• ISS pass-over information.
• Automatically provides a forecast for your current location.
• Save favourite locations for easy access.
• Daytime forecasts for solar observers/imagers.

Updated hourly. Frequent hourly updates are important because often the clear spell between showers provides excellent seeing and 30-minutes under a clear sky with a grab-&-go telescopes is pure gold!

Did you notice the ISS pass-over information? The times are precisely calculated for your location and displayed alongside the cloud forecasts so it has never been easier to observe. It is our favourite feature :-)

Also includes regular weather data (wind, rain, frost, temperature, dew point, etc) so perfect for those wanting a detailed weather forecast, without cutesy graphics.

We have had a lot of fun building and testing Clear Outside and are keen to to develop it further so if you find it useful or have suggestions, please let us know.

What’s New

Version 1.0

This app has been updated by Apple to display the Apple Watch app icon.

Ratings and Reviews

3.9 out of 5
85 Ratings

85 Ratings

eastwoodandy ,

Why default to Devon!

This seems like a very basic flaw, and the home page should show the current location. How many people in the world are going to want Devon as their default location? The default should be current location unless a user specifies a different location.

Also the location page isn’t very accurate, it picks towns/cities a long way from the actual place I want to pick. Most astronomers are going to visit darker skies, so naturally that will be away from large populations. Having the location search only find large towns & cities isn’t helpful. Examples looking for Edale in the Peak District comes up with Manchester, trying Monyash defaults to Bakewell

tricky0001 ,

Really annoying defaulting to developers location!

It's a great app as a photographer, it shows good detail on cloud cover and likely conditions, and generally has been pretty reliable. It's a solid gold 5 star app, except...
...except the opening 'home' page is for the developers location in Devon. And there's no way to change it. I don't use the app enough to remember I have to click 'current location' at the bottom to show me a different location. I really don't understand. It feels bad to moan about a free app that I really appreciate, but it's really annoying nonetheless and you'd think it'd be an easy fix.

Jimbo48754 ,

Superb simple little app with plenty of info

I've been using this app for only a short time but from a landscape photographer's viewpoint the app is really useful, giving clear & simple ratings for visibility, chance of rain and the really great division of cloud cover into low, medium & high (high clouds make good sunsets, low clouds ruin them) plus a summary of the ephemera for the sun & moon. Seems pretty accurate based on my home location.

Suggestions to the app builders?
- Rise/set times & bearings for the galactic centre (gamma 2 Sagittarius or A* sgr) for planning Milky Way photography
- a notification to let you know that there should be a dark, moonless night and if possible that it should be relatively clear skies

App Privacy

The developer, First Light Optics, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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