Wasps and bees are unable to feed their nests if they cannot collect nectar and protein, and if the temperature is 12 degrees Celsius or less foragers cannot fly. Cool night temperatures prevent them from flying at night and if the they do they usually fly towards lighted windows at night. They can generally fly in a drizzle, mist, or light rain but if drops of water accumulate on their bodies, it weighs them down and affects their flying ability. Water does not soak these stinging beasts due to its surface tension.
https://gogreenpestcontrol.ca/when-do-wasps-and-bees-fly/
Randy Bilesky BSF CPA RPF gogreenpestcontrol.ca
https://www.linkedin.com/pulse/when-do-wasps-bees-fly-randy-bilesky/