Here is a general link on how often to water your lawn as related to conditions of your lawn and temperatures:
Best to you and hope this helps.
That's only 77° Fahrenheit, which is perfect. Not overly warm. Deep watering a few times a week is better for your lawn and plants rather that a short spritz every day. Here are some sites for you.
Be grateful for the 25C, it's over 100°F (37C), where I live.
It's August! And yes, the outdoor workers need to be very careful this time of year. Weather.com says humidity is at 29% today, but my hygrometer says differently due to microclimate in the backyard. 😎 Will be happy come October when it cools down at night.