I came across MeteoPace (via) which is something I’ve wanted for a while.

When you are running, wind, heat, humidity, and elevation all can affect your ability to hold a pace. This is especially critical when you’re racing, as a few seconds difference in pace can be the difference in finishing or not. There are various rules-of-thumb and calculators people use, but those can be unwieldy and error-prone. This app looks to make this much easier.

I’ve synced my Strava runs to this, and spot-checking some recent hilly runs seemed to match the effort I was putting in. This is going to be very useful for that summer running.

meteopace screenshot showing the impact that elevation and weather had on a recent run