Doing paint estimation, getting your tools and paint in order, and a little light reading on the Boysen Tutorials section of this blog are some of the things to do to prepare for a paint project. Add one more task: to see what the weather is going to be like. Here’s why.

Rain is the Enemy

As you may have already guessed, it is not at all a good idea to paint when it’s raining, especially if you’re painting exteriors. Painting on a wet surface will hinder proper adhesion. Plus, if you do manage to get the paint on the surface, it will, in all likelihood, be washed away by the rain.

Aim for at least 3 straight days of sunshine before you begin painting. This gives enough time for the paint not just to be dry to the touch but to fully cure as well. If it has just recently rained, wait until all surfaces have completely dried before starting.

Temperature, Humidity, and Paint

Homes in High Humidity Areas: Waterproofing and Painting Guide | MyBoysen


Temperatures that are too high cause paint to dry too fast. When this happens, the paint film fails to form properly which increases the likelihood of cracking. Too low, on the other hand, and the paint will dry too slow. This will cause the paint to flow or drip on the surface causing an uneven paint film.

Per international standards, for any type of paint, the minimum temperature is 5°C with a maximum of 50°C when painting. Thankfully, because we live in a tropical country where temperatures do not reach extremes, unlike others with harsh winters or summers, we don’t have to worry so much about this.


We do, however, have to consider humidity. Low humidity is okay as there will be less moisture that can cause problems. High humidity is an issue. The moisture in the air can get in between the paint film and the surface which will cause issues like blistering.

Per international standards, the maximum humidity when you’re painting should be at 85%.

The Boysen Recommendation

If you’re using Boysen products for your painting project, we recommend painting at a temperature of 25°C at 50% humidity. Try to stick as close to this if you want to achieve the best results for your paint job.

If you live in an area with high humidity, like Baguio and Tagaytay, we have a painting guide, especially for you. Check it out: Homes in High Humidity Areas: Waterproofing and Painting Guide.

Other Factors That Affect Paint Drying

Paint Taking Longer to Dry? 5 Possible Reasons Why | MyBoysen

Apart from the weather, there are a good number of things that can affect your paint as you apply it to the surface and while you wait for it to completely cure. These factors can affect the time it takes for paint to dry and the quality of the resulting paint film.

For example, adequate ventilation is necessary for alkyd- and lacquer-type products like Boysen Quick Drying Enamel as they require evaporation and oxidation to cure. Without enough airflow, the paint film is going to take longer to dry than what is stated on the packaging label. So you need to consider that too.

You can learn more about how paint dries and tips to ensure your paint dries properly here: Paint Taking Longer to Dry? 5 Possible Reasons Why.

If you have any questions or inquiries about Boysen products, our technical team will be happy to assist you. Send an email to or call (02) 8363-9738 local 413 to 418 during office hours for a one-on-one consultation.


Jill is a writer on a continuous journey to learn about paint and share them with you, the reader. She has an interest in the technical side of things but also thoroughly enjoys playing with colors. She likes calm greens, quiet blues, and mellow yellows best.

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