Tired of the heat and humidity

[Ronsonic]

Originally Posted by Surfdog98

Florida here as well, so August / September are the worst. I recently started riding early mornings ie 5am and have noticed a huge difference on long-ish rides as far as comfort and heart rate.
5-7am quite comfortable and riding "base" miles my HR is in 120-130 bpm range. 7-8am starts to feel warm, but HR is still in the range I am looking for. 8-9am it's feeling much warmer, and if I keep up the same pace, my HR starts to climb significantly. By 9am I'm looking forward to completing my ride, and if I've kept the same pace/effort, then my HR might be 150 bpm.
So, 20-30 bpm higher, mainly due to the hot/humid conditions....cardiac drift, big time.

Dig it. Tried doing intervals a couple weeks ago and the HR just never recovered. Yuck.

Gotta start getting out earlier like you are.