Weather: like most of coastal California, the difference between summer and winter is less about the temperature, more about the rain -- summer is largely dry, winter can be wet. Mornings are cool but never cold, usually low 50s.
If you have time for more than just your round of golf at Pebble, I would suggest one of the following:
- A round at Pacific Grove muni is worth it, you'll love the back nine through the dunes surrounded by water on three sides, with a lighthouse and lts of ice plant
- Monterey Aquarium, even without kids, it's an experience
- Pacific Grove is a beautiful and relaxing place to stay if you want to stay another night or two without paying Pebble resort prices. A bunch of options there, we've stayed at the Butterfly Grove Inn two or three times. Places to eat in Pacific Grove: breakfast at Toasties, dinner at seafood-centric Passionfish.
- Carmel Mission
- Point Lobos State Reserve -- fantastic hiking with spectacular views
Lastly, I have to put in a plug for Big Sur. If you have a day or two, and love the outdoors, I can think of no better place I have visited on Earth more beautiful and worthy of your time. There's not much to do, except drive, stop, take in breathtaking views and snap some photos, hike through giant redwoods or along/down cliffs to the ocean. Picnic anywhere you can or lunch at Lucia for an overpriced burger that is worth every penny. Enjoy.