Normal
Heat pads if you need to use one. Keep it away from the substrate & make it cover only part of one side. Like that your tarantula can move away from the warmth. The fact that temperatures are X, Y or Z in the open where your T comes from, in the wild. Does not mean your species of tarantula lives in the full sun, they like warm, shaded places in general. Sometimes I wonder how many T's are killed by the misleading term, humidity. Forget the term humidity & think substrate. A moist, but not wet, substrate makes the air more moist. A dry substrate adds no extra moisture to the air. The air is a result of your husbandry, not a separate issue. Make the environment right & the air will be right.
Heat pads if you need to use one. Keep it away from the substrate & make it cover only part of one side. Like that your tarantula can move away from the warmth. The fact that temperatures are X, Y or Z in the open where your T comes from, in the wild. Does not mean your species of tarantula lives in the full sun, they like warm, shaded places in general.
Sometimes I wonder how many T's are killed by the misleading term, humidity. Forget the term humidity & think substrate. A moist, but not wet, substrate makes the air more moist. A dry substrate adds no extra moisture to the air. The air is a result of your husbandry, not a separate issue. Make the environment right & the air will be right.