June 16, 2025, 10:51 am | Read time: 3 minutes
Favorite pastime: window cleaning? Probably not! To save some time and effort on the task, it’s important to choose the right moment. If you don’t, you might end up having to clean again right away.
Even though most people would probably prefer to avoid it, windows do need to be cleaned from time to time. The right timing is crucial, though, as it can save a lot of work and time. Factors such as the season and weather are key.
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Overview
When Not to Clean Windows
As a general rule, if the windows are so dirty that you can’t see through them properly, it’s time to clean them. However, to save some effort, it’s important to consider when to pick up the cloth.
Too Low Temperatures
Most people clean their windows in the spring, but it’s crucial to ensure it’s not too cold. Otherwise, the cleaning water can freeze on the panes.
Too High Temperatures
It shouldn’t be too hot when cleaning windows either. The water dries too quickly on the panes, leaving streaks.
Rain
If it’s raining outside, don’t pick up the cloth—it only leads to unnecessary frustration. The rain will cause the windows to have unsightly spots right after cleaning. Plus, it might even rain inside if you’re cleaning the outside panes.
Sun
Rain isn’t good, but neither is sun. If it shines directly on the windows, the cleaning water dries or evaporates too quickly, causing streaks and smears.
Related: Why You Shouldn’t Clean Windows in Sunshine
Pollen
It shouldn’t be too hot or too cold, meaning spring would be ideal for window cleaning. However, you must consider pollen during this season. The blooming period can last until May. If you don’t want to clean multiple times, wait for the pollen to subside.
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7 Common Window-Cleaning Mistakes and How to Avoid Them
What Time of Day You Should Ventilate in Spring
The Best Conditions for Cleaning Windows
Rain is unfavorable, and direct sunlight is too—so when should you clean windows? myHOMEBOOK has the overview:
- mild temperatures
- partly cloudy
- no wind or pollen
- no frost
- no rain
How to Clean Windows Properly
To avoid unsightly streaks when cleaning windows, use the right solution. Ideally, add a splash of grease-cutting dish soap to the water. It’s important not to create too much foam, as it can leave streaks and smears. Rinse aid is also great for window cleaning. Alternatively, you can use shampoo.