Download processing speeds differ significantly between the web and API

Hello,

While I’m trying to download ERA5 daily statistics on pressure levels, I found that the download processing speed is significantly different between web reques and API request.

For example I request : temperature, 11levs, 1996, december, 6-hourly, global

It takes more than 3 days on API (the request has accepted 2026-04-03 13:28 and it’s still running now). However I download it in 10 minutes from your web site.

I wonder what is going on behind this huge differences. Perhaps you have seperated queue for API request and web request?

I have a lot to download, should I click one by one on the web to have it faster?

1 Like