Water temps from November to March in the 40's°F. May to July in the 60's°F and summer in the low 70's°F. Air temps from November to February in the 40's°F, March/April and October in the 60's°F, May/June 70's°F, July to September in the 80-90's°F. It's usually like 5 or 10 degrees cooler than Portland.
Very gusty wind. Still it's not as bad as Hood River. The best wind is when you get a large temperature difference between the coast and the Gorge. Check for a large temp. gradient between Hood River and Astoria, that's when it starts nuking. Also only go during the westerlies. Early season starts in April or early May and lasts through August. West wind is most common with many windy days. Late season starts in September and goes through November with West and East wind days and more no wind days. The Jones Beach area near Clatskanie gets good wind when the Gorge shuts down. It is an afternoon sailing location so plan on sarting in the middle of the afternoon and sailing until dark.
Cross the Lewis and Clark Bridge into Oregon and head west. Look for signs to Jones Beach near Woodson after you pass Clatskanie. 1.5 mile off of HWY 30 between Astoria and Longview.
