Ideal water temperature for watering

[orchidsarefun]

It dawned on me that my mounted phals were being spray watered at a different water temp to the other phals as I use a spray thats left on the racks. With phal watering I use the end of elbow tip to feel/measure the watering can temp.
What is the ideal temp for watering ? I can't find much info on that, other than "tepid"

[Oscarman]

I try to aim for room temp.....70-72F.

[WhiteRabbit]

I aim for as close to the temp of the air as I can - maybe just a bit warmer - I have found it's fairly easy to judge just using your fingers, when the water feels neither warm nor cool

[Ray]

I keep my RO tank at 75°F.

[orchidsarefun]

thanks for the input, just bought myself one of these as a precaution and

Amazon.com: Elite Submersible Preset Heater Mini, 25-Watt: Pet Supplies

to improve on my elbow-measuring skills.

Its going to fit into my ginormous watering can.