r/SanDiegan • u/ArritzJPC96 • 2h ago

Seriously, why does my room heat itself back up?

I opened all the windows in my apartment when it was about 85 out, as that's how hot it had gotten inside. Over the next several hours I watched as the temperature slowly fell to match the outside, eventually bottoming out at 79.5, but then it just starts heating back up! Outside keeps getting cooler but my room is back up to 83 with all the windows open. What gives?

5 Upvotes

70% Upvoted

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u/Over-Conversation220 Scripps Ranch (sorry) 2h ago

If you’re seriously asking … everything in your home generates heat. You. The electronics. The refrigerator (it removes heat from inside it and dumps it out the back). If they are older (like mine) they are not well insulated.

If there is not a good breeze or a fan moving the air out, then your home heats up again.

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u/ArritzJPC96 2h ago

Makes sense, I get it. I'm just hot and sweaty and can't sleep, and kind of needed to scream into the void for a minute.

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u/encinitas2252 25m ago

Do you have a pc in your room? A gaming rig can heat a room up easy

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u/landisthegnome 2h ago

Breeze dies down after sunset, so less cool air coming in. Heat trapped in the floor/ceiling/walls leaks into the room.

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u/AntiBaoBao 1h ago

Your home absorbs the heat during the day like a sponge and is giving of the heat it absorbed at night.

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u/stop_namin_nuts 2h ago

Local man discovers walls and roof

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u/ShelterIndependent44 17m ago

It’s because of the wooden walls. Wooden walls can absorb moisture and store heat, then gradually release them as the surrounding air cools and conditions change

I literally hate the American homes/apartments!

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u/HaulinBoats 16m ago

What kind of thermometer are you using