Finding the Ideal Temperature For Exterior Painting

March 9, 2022

The maximum and minimum advised temperatures for exterior paint vary, relying on the type of paint (oil or latex) and a particular paint brand applied. Still, a common rule of thumb is that oil-based color can be used when the temperatures are around 40° to 90° F and latex around 50° to 85° F. The best drying will come up when the relative humidity is 40% to 70%.

Paint requires multiple days to dry, and as the temperature drops, dew can form on exteriors and induce the water in color to vaporize too gradually. Even if it's warm during the daytime, the color won't set a decent film if temperatures dip too cold at night. That influences how the paint bears up over time, involving how well it withstands cracking. Colder temperatures and moisture on the surface can also occur in staining or mold.

However, you can get the best exterior painting results considering the effects of various weather conditions for exterior paints given below.

  • Concerns for Cool Weather

Several paint manufacturers have a perfect line of premium 100% acrylic latex paints and primers that have been remarkably proposed to use in temperatures as low as 35°F. But take advice that for the color to dry and cure adequately, the air and wall temperatures should not drop below 35° for 36 hours after coating.

Moreover, to stay on the cautious side and prevent any undesirable speed bumps, painting experts recommend painting in no below than 50°F weather. Plus, it is advisable to apply coats from 10 a.m.-3 p.m. to obtain maximum results.

Don’t forget that lower temperatures indicate slower drying and extended curing times, which says be patient—taking more time between coats, commonly 24-hours. That advice is particularly significant when coloring with darker shades, which have more pigment, or when applying a latex color over an alkyd primer.

  • Concerns For Dew Point

The dew point is the temperature to which the atmosphere becomes chilled, transforming the mist from a vapor to a liquid. This dew can be observed on surfaces in the form of moisture water droplets. A higher dew point indicates there will be a higher volume of moisture existing in the air.

  • The Effect Of Direct Sunlight

Resist painting in direct sunlight. Sunny conditions may be excellent as a contractor outside, but direct daylight can result in paint drying far too shortly. Professionals always hear clients protest – undoubtedly, you expect the paint to dry fast! To understand why paint drying quickly is a problem, you will realize how to paint functions.

To grip the substrate correctly, the paint must absorb onto the surface to soak up ideally. You will discover if the color can't comply completely, any color or covering is at risk of lagging.

Understanding the favorable weather conditions for painting is essential. If you see that the substrate is hot to the touch from direct daylight results, it would be better to paint outer walls during the early hours of the day before the exterior has an odds to become warm.

  • The Effect Of Wind

Just like the results of direct sunlight, windy weather can direct to the paint not having an adequate amount of time to embrace correctly. Plus, there is also more danger of residue being struck into the damp paint coating.


  • Best Weather To Paint Outside

The climate should cooperate if you want your painting project to turn out perfectly. The paint's drying process is directly related to the climate conditions and temperature when you are applying the paint.

Ideally, you should select a time that provides you dry, warm days. It'sIt's also an excellent idea to watch out for the climate a few days before, and after the day, you will start painting. If it rains before paint day, you’re siding probably takes two days to dry out completely before painting. The same goes for the after-effects of painting. It will help if you are sure, it's not going to rain after you are done painting, and your paint is still drying.


Your decision to paint will significantly rely on the climate of your city. If you follow the above general strategies, you will surely end up with a perfect finish.

Ideally, these climate conditions are perfect for your upcoming project If exterior painting. However, understand that these climate conditions don't occur often.

You can apply paint in any of the mentioned conditions. However, you should be prepared for the dangers that accompany them.

To finish your exterior painting project perfectly, research and choose from the best residential painting services in your town.




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