The following table will show you how you will feel at different dew points: Dew Point Temperature, ° F That is what makes you feel uncomfortable. Your body’s ability to cool down itself is hampered. If the dew point is high in your place, the moisture in the air will slow down the rate by which your sweat evaporates. It’s worthy of considering the dew point in your area because it really affects your degree of comfort. So, the dew point in this geographical area is also considerably high. The water temperature usually peaks up to 90☏ during summer in the area. In the world, the warmest water temperature is found in the Persian Gulf. The highest dew point ever recorded on earth occurred on July 8, 2003, in Dhahran, Saudi Arabia. If the dew point rises to the air temperature level or the air temperature cools down to the dew point, dew or fog will form. The dew point can be equal to but will not exceed the temperature. In the relation between temperature and dew point, the temperature is always higher than the dew point. The heat index manifests its greatest effect on the humidity in the mid-afternoon since it is the hottest part of the day. The more humidity, the wetter you will feel. It simply means the amount of water vapor or humidity in the air. That is the other meaning of the term ‘heat index.’ It is a computed temperature that indicates what the body will feel for a certain combination of humidity and temperature. So, you can see why a higher dew point is equal to a lower degree of comfort. The 74 dew point combined with a hotter 90☏ air temperature will make the sticky feeling even worse. If you are doing brisk walking, your sweat will cling to your skin.Īs the air gets hotter, the more uncomfortable you will be. If the air temperature is 75☏ and the dew point is 74, you will feel humid. As soon as the comfortable dew point range approaches 70, you will become very uncomfortable.Įven in cooler mornings with 75☏ temperature, you will notice this uncomfortable condition. This will happen at around 65 degrees dew point, no matter what temperature the air is. You will know that it is humid if you feel slightly uncomfortable. Once the temperature of the air equals the dew point, the humidity is 100%. You can see this process in action in the dew that collects on the grass in the early morning. The temperature required to cool the air to condense and change into water (in liquid form) is called the dew point. However, if the dew point is 60☏ and the temperature is 80☏, the relative humidity will be 50%. If the dew point in your place is 30☏ and the temperature is also 30☏, you will have a relative humidity of 100%. You already know that the greater amount of moisture in the air, the higher is the dew point. As the dew point climbs to 70, the air becomes oppressive.ĭew point also has some effect on humidity. It gets difficult for the moisture on your skin to evaporate because there is so much water vapor in the air. You have a ‘wet in wet’ situation where your skin is wet, and the surrounding air is also wet. The reason is that there is so much water vapor in the air. But when the dew point is high, the evaporation of the moisture on your skin will be very slow. When you are perspiring in normal conditions, the moisture on your skin evaporates. We all know that the temperature is warmer during these months. The dew point is an important comfort factor because it indicates moisture in the air during the summer months. It will slow down the evaporation of your sweat and will prevent your body from cooling. The reason is that, at this level, there is so much water vapor in the air. Many people are still comfortable at 60.īut higher than 60 will definitely make most people feel muggier. It could be slightly less if it goes higher than that, you will begin to feel sticky or muggy. What is a comfortable dew point? To obtain general comfort levels, the dew point in your area should be no more than 55. Read on to learn more about dew point, what it is, how it affects your comfort and how you can control it. You will feel hot and sticky because there is so much water vapor in the air that slows the evaporation of your sweat. If the dew point is higher than 60, you will start to feel muggy. A dew point of 55 will allow you to feel dry and comfortable. If the dew point is higher, your surroundings will feel sticky or muggy. It could be slightly less, but it should not exceed that amount. The dew point that will make you comfortable at any time should not be more than 55. If you want to be comfortable, you need to know the best dew point. It’s not humidity, but it’s the dew point that determines how comfortable you are.
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