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    What to wear by temperature

    What to wear in 100 degree weather

    Your weather right now

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    Live from OpenWeatherMap.

    100°F is about 38°C

    100°F is about 38°C, extreme heat by most standards. Light, loose clothing, a hat and plenty of water are the norm, and most people keep time outside short and in the shade. My honest take is that 100°F is a day for early mornings and air conditioning.

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    The 100°F kit, as I see it

    • The lightest, loosest clothes you own
    • Light colours
    • Breathable shoes
    • A wide-brim hat, sunglasses and water

    What I think of 100 degree weather

    • 100°F: the sun has stopped being a star and started being a problem.
    • Triple digits. Your car is now technically a sauna with wheels.
    • At 100°F the weather is not a topic of conversation, it is the only one.

    Where 100°F is a normal summer afternoon

    Questions

    Is 100 degrees hot?

    No. 100°F is extreme heat, about 38°C, and in humidity the heat index goes much higher.

    What is 100°F in Celsius?

    100°F is about 38°C.

    What to wear running in 100 degree weather?

    Runners’ rule of thumb says a run feels about 15 to 20°F warmer than the reading, so at 100°F almost every runner moves to the treadmill or the hour before sunrise.

    City figures: NOAA U.S. Climate Normals, 1991 to 2020. Wind chill: the National Weather Service formula.

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