The sun is much stronger in San Diego than Seattle in June.

At Seattle's latitude summer solstice sun angle is ~66°. sin(66°) = 0.913 = 91.3% Seattle's summer sunlight is 91.3% as powerful as 90° sun somewhere in the tropic of cancer and identical to the equator. The real difference in sun brightness is in winter, summer sun is barely different from 0 to 55°N.

Summer sun isn't that different between different latitudes. During June solstice Seattle and somewhere on the equator will have similar sun angles

I need to move out of western WA... the sun is just too intense here. Said no one ever.

If I'm at the tropics I'm staying near the water only. If I go inland, obviously its even worse than here. If I'm in the PNW, I want to enjoy time in my yard or hiking or at the park. But nope the sun is too much. The best escape is the Puget Sound honestly. That's where I try to spend my time. Tacoma and Seattle waterfronts are nice!