Bringing a bit of cheer to our Monday morning is the fact that today is the summer solstice — the longest day of the year and the first official day of summer. What's more, atypically for a summer day in San Francisco, the National Weather Service predicts that today will hit almost 80 degrees in the city.

That's the kind of one-two punch that means you can lounge the evening away at the park or the beach, basking in the sunlight and remarking out loud that life sure is grand.

To get down to details, the sun is expected to set at 8:35 p.m. tonight, giving us just under 15 hours of daylight (here's a handy map that shows how much light different parts of the US are getting today), and the predicted high is 78 degrees. (The Weather Channel conservatively puts the high today at 70.)

The warm weather should stick with us all week, with temperatures remaining in the 70s all week. So take off work a little early, grab a local beer, and head to the beach (or one of the best hills in SF) — after all, the days only get shorter from here on out.

Related: The 16 Coolest Outdoor And Patio Bars In SF