7Timer! vs Weather Underground API
Same instrument, two spec sheets — measured, not claimed.
7Timer! vs Weather Underground API: common questions
Which is more reliable, 7Timer! or Weather Underground API?
Both are neck-and-neck — 7Timer! and Weather Underground API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, 7Timer! or Weather Underground API?
Weather Underground API has the lower median latency in our checks — 7Timer! responds in 600 ms versus Weather Underground API at 104 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do 7Timer! and Weather Underground API need an API key?
7Timer! needs no key, while Weather Underground API requires a free API key. If you want to start calling without signup, reach for 7Timer! first.
Can I call 7Timer! and Weather Underground API from the browser?
Only Weather Underground API is browser-friendly — it returns CORS headers over HTTPS. 7Timer! needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are 7Timer! and Weather Underground API free for commercial use?
7Timer! has unclear commercial terms, and Weather Underground API has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.