I can give you a bit of an idea. I've done one trip from Port Angeles to Astoria, and one from Astoria to Victoria. Both trips on the same boat, a 38' Liverpool built trawler that plods along around 8 knots.
First trip, down: Left Port Angeles around 1900 hours, arrived and anchored in Neah Bay around 0100 hours. Left Neah Bay late morning and arrived in Astoria the following day around 1400 hours. Weather was calm for this trip. At Columbia River Bar the swells were somewhere north of 15' feet. We had a car carrying freighter behind us. Interesting. The channel out of Astoria and the bar is dredged, it goes about 13 miles south west, and this is where you enter or exit the channel.
Second trip, up: Left Astoria around noon. Radio reported Bar closed to vessels 30' and under. Swells north of 25', good winds, we plodded along. Had to do the 13 miles of course, before we could head north. Did that and motored all day in reasonably crappy weather and around 1800 hours pulled into Westport for the evening. Left 0900 next morning and entered Neah Bay around 2200 hours. Left Neah at 0900 and arrived in Victoria Harbour around 1400 hours. Weather and sea conditions from Westport to Victoria calm with fog.
Both trips were done around Labour Day; the down a week after and the up a week before.
Would I do it in a Ranger Tug? No way, not enough gas stations or bolt holes. The boat I was on was designed for the North Sea, was around 20 tons, had two diesel engines and lots of fuel.
I will probably guide the rest of my life with "NEVER AGAIN" when thinking of crossing the Columbia River Bar.
I would love to do the Columbia River as far as Astoria. Lots of marinas and services there.
Dave
LOBO