Scope Nights Astronomy Weather

Find clear dark skies and go stargazing with Scope Nights award winning astronomy weather forecasts

Scope Nights Astronomy App

Download on the App StoreExperience the real night sky and go stargazing with Scope Nights award winning astronomy app, including stargazing weather forecasts & dark sky map. With NASA high resolution global light pollution map to find dark sky sites with clear skies, advanced astronomy weather settings to fine tune stargazing ratings to suit your telescope or observatory requirements, and long range stargazing weather forecasts up to 10 nights ahead.

Scope Nights is the first award winning astronomy app to provide accurate and detailed stargazing weather forecasts worldwide. Scope Nights is designed to provide the best stargazing forecasts available using a combination of global and national weather forecasts. It also contains a detailed dark sky map derived from the latest NASA satellite data to help you quickly find the best dark sky sites with clear skies, along with advanced astronomer’s weather settings so stargazing ratings can be tailored for different types of observing. Scope Nights is an indispensable tool for astronomers and is designed to appeal to everyone, from casual stargazers to keen astronomers who have specific requirements for observing.

Sky & Telescope Magazine recommends Scope Nights 2.1  “Amateur astronomers may not control the weather, but at least we can plan for it. Several astronomy-oriented weather apps are available, but Scope Nights has become my favorite… it does a fine job of summarizing the data in a clear and understandable fashion” – Rod Mollise, Sky & Telescope Contributing Editor.

View Full Article | Sky & Telescope Magazine, March 2015

Accurate Stargazing Forecasts


Automatically shows stargazing weather for your current location and finds stargazing forecasts for any location worldwide.

Shows at a glance which nights will be most suitable for stargazing using smart weather analysis and nightly summaries to make it easy to pick the best nights.

Three hourly and six hourly astronomy weather forecasts showing colour coded details for moon phase, cloud cover, precipitation probability, humidity, minimum temperature in celsius or fahrenheit and overnight average wind speed and gusts in mph, knots, kph or mps.

Medium range global stargazing forecasts derived from the European numerical forecast model, renowned worldwide as providing the most accurate medium range forecasts.

Short range national astronomy weather forecasts updated hourly using weather data provided by NOAA and Met Office.

Please see the National Astronomy Weather page for more details.

Dark Sky Locations


Detailed global light pollution map derived from the latest NASA satellite data, designed to help you find local dark sky sites with the best stargazing forecasts. Select any Scope Site, Observatory or IDA Dark Sky Site to view the latest stargazing forecast in detail.

Map markers showing tonights stargazing ratings for your favourite Scope Sites and map markers showing the latest IDA international dark sky sites & major astronomical observatories, along with searchable lists of IDA international dark sky sites and major astronomical observatories. Select any Observatory or IDA Dark Sky Site to add to your Scope Sites list.

Best stargazing sites list shows which of your favourite Scope Sites has the best stargazing rating for each night. This is useful if you have a choice of stargazing locations, but want to choose the one with the best stargazing conditions.

Compare stargazing forecasts for up to five of your favourite observing locations (“Scope Sites”) plus your current location. The “My Scope Sites” page lets you remove Scope Sites or change the order on the Scope Nights summary page.

Please see the Dark Sky Locations page for more details.

Astronomer’s Weather Settings


Choose night, evening or morning coverage to give more relevant stargazing ratings. For astronomers who don’t have time to observe through the whole night.

Analyses weather, cloud cover, wind, humidity, temperature, moon phase and creates stargazing ratings using weighted algorithms. Filters weather data only showing relevant forecasts from sunset to sunrise.

Threshold adjustments for moon phase, wind, temperature and humidity to suit your observing requirements. Including wind speed gust sensitivity switch for those with large telescopes or in exposed locations.

Receive clear period notifications before sunset so you can prepare your telescope and share your astronomy weather reports via Twitter.

Medium range global stargazing forecasts for up to 10-nights to provide an idea of what’s in store and ideal for planning astronomy events further ahead.

Please see the Astronomer’s Weather Settings page for more details.


Big Help

This is one of the most helpful astronomy apps that has been made for the astronomer. I know what the weather will be at the observatory and any of my other sites. I know what to wear my coat or give up and go home for the night. It takes the guesswork out of planing an observing run.

App Store Review by Danalambert from United States on Dec 16, 2014

Best Astronomy App

I love this astronomy app! The forecasts are accurate and it notifies me during the day if there is a possible clear sky for the night. And till now, it has been spot on! I heavily use this app for planning my astronomy and astrophotography sessions and absolutely love it! The upgrades are totally worth it too! A Must buy IMO!

App Store Review by Meizagoodboy from United States on Dec 16, 2014

Support Scope Nights

If you enjoy using Scope Nights and find it useful, please recommend Scope Nights to others by giving a good rating in the App Store, as it helps to ensure Scope Nights is developed further and keeps getting better!

Help Articles & Support

If you have a problem with the app or want to provide feedback, please check the help articles or submit a support enquiry.