September Means More Summer for Oregon Coast

It's likely THE biggest news story about the Oregon coast, yet it’s one of the area's biggest secrets: Fall is just the beginning of really warm weather, and the start of a bevy of features that make this the most inviting time of the year on Oregon's beaches.
Fall is known as the "Second Summer," meaning the coast is at its warmest in September and early October. This season also boasts glittering bits of good news in the realms of whales, lodging prices, lesser crowds, traffic and much more.
By the time September comes around, the ocean is at its warmest because it’s been heated up all season. Meanwhile, things get cooler in the valley, which evens out the temperature differences between the two regions. This allows warmer air flows from the east and from California to help warm things up even more, as well as causing the winds to die down in general and decrease fog.
During the summer, those temperature differences drive the sea breezes and fog. But by early fall, those differences are not as significant, allowing these factors to come together and making for sunnier, hotter days than during June, July and August.
Weather experts say this usually lasts well into October, with the middle of the month generally being a turning point towards more blustery weather. However, in 2004, those summer-like conditions lasted well into the last few days of the month. Perhaps it’s global warming, perhaps it’s not: but this phenomenon seems to be lasting a bit longer in many of the past few years.
On top of it all, this season boasts lesser crowds, lower lodging prices and fewer cars on the highway – making this the best time of the year to venture to the Pacific Ocean.