Climate Shock?

People talk about culture shock, and they talk about acclimatising to different environments - I've had a couple of experiences that are a mix of the two.

The sun sets here between 6pm and 7pm during most times of year, so on my way home from the office the sun is pretty low. Add to that the clear blue skies, and the cold aircon on the train, and I find the sensory cues add up to the feeling of 4pm on a clear winter's day in London. The "climate shock" happens when I get off the train, and find that the temperature is in the high 20s.

The other regular shock I get is when there's an overcast day here. My office, the lifts in the
building and the atrium on the ground floor are all heavily airconditioned to what feels like the temperature of a cold day. Looking out the office window on a grey day, subconsiously I'm expecting that I'll walk out of the building and shiver - but in fact I have the exact opposite experience. I'm colder under the aircon than outside under the grey clouds.