It's a cool project, but...
>>It regenerates every hour, providing a constantly updating snapshot of air temperature around the globe.
Once per hour is not "real-time." It's "once per hour."
>>It regenerates every hour, providing a constantly updating snapshot of air temperature around the globe.
Once per hour is not "real-time." It's "once per hour."
But historically, "real-time" means "not batch mode" - where batch jobs are executed whenever there are available resources, in an unpredictable manner.
Real-time is responding to real world input on some periodic schedule that is appropriate. In this case, one hour sounds fine for a world temperature map. Are you expecting to make minute-to-minute decisions based on the global temperature distribution?
Local temperature I'd expect to be updated faster, but really it's a matter of your use-case.