Painting concrete in the autumn can be a great choice, but there are a few factors to consider to ensure optimal results:

Temperature:

Make sure the ambient temperature is within the range recommended by the paint manufacturer. Generally, it's best to paint when the temperature is between 50°F and 68°F (10°C and 20°C). Avoid temperatures that are too low, as this can slow drying or cause adhesion problems.

Humidity:

The concrete should be completely dry before applying paint. Check the weather forecast to ensure no rain is imminent and that humidity levels are not too high. Excessive humidity can lead to drying and adhesion issues.