Don’t Clean Windows on Sunny Days — Here’s Why

It might seem like the perfect time to clean your windows — the sun is out, the skies are blue, and everything looks brighter. But that sunny day might be the worst time to grab the glass cleaner. Here’s why.

1. The Heat Dries Cleaner Too Fast

Direct sunlight heats up your windows, which causes your window cleaner to evaporate quickly. That means you don’t have enough time to wipe it down, leaving behind streaks and residue.

2. Streaks Are More Likely

When cleaner dries before you wipe it away, it doesn’t lift dirt — it just bakes it onto the glass. The result? Streaky, cloudy windows that look worse than before.

3. Smudges Are Harder to Remove

The heat can make any existing smudges or spots more stubborn, requiring more elbow grease and time to get them off.

The Ideal Time to Clean

Aim for a cool, overcast day. Cloudy skies prevent the cleaner from drying too fast, giving you time to clean thoroughly and achieve that sparkling, streak-free finish.

✅ Pro Tip:

Clean one window at a time using a microfiber cloth or squeegee. Work from top to bottom and wipe edges last to avoid drips.