It should be delightful weather for us!
The average daytime temperature in Irvine, California during the dates of our retreat is pretty stable at 78 to 80-degrees. Overnight low is 56 to 58-degrees. June is a very dry month in Southern California with only 0.1-inch of precipitation on average. Lightweight clothing during the day when out-of-doors; a light wrap or sweater during the evening.
The hotel may be a different story!
You know how these venues can be! So cold that you’d think you were in Alaska! We recommend that you wear layers of clothing so you can add or remove, depending on whether the air-conditioning is on, the soldering torches or heat guns have heated up the room, the afternoon sun is streaming in the windows, etc.