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La Niña has resulted in a humid summer for much of eastern Australia.
This climate pattern typically causes warm, humid air to rise from the western Pacific Ocean, ultimately leading to greater cloud formation, increased rainfall, and higher humidity along Australia’s eastern seaboard and tropical north.
So what’s the best way to cope with what’s left of a hot and humid La Niña summer?
Read more: Back so soon, La Niña? Here's why we're copping two soggy summers in a row
Sweating (and the heat loss that goes with it) is by far the most effective way our bodies use to cool us down. But it’s not sweating alone that does the trick. It’s the evaporation of sweat that is key.
For every gram of sweat you evaporate, a little over 2.4 kilojoules of heat energy is taken with it.
That’s a bit difficult to visualise. So let’s think of it in terms of boiling water.
Evaporating roughly 140 grams of sweat results in enough energy (heat) “loss” to bring a litre of 20°C water to boiling point (at sea level).
We were treated to some interesting facts during this year’s notoriously sweaty Australian Open tennis tournament.
Champion player Rafael Nadal was reported to have evaporated over 4 kilograms of sweat during his 4 hour 8 minute quarter-final win over Denis Shapovalov.
That’s the equivalent of brewing a 250 millilitre cup of tea via the energy of his own sweat-liberated-heat – every 2.2 minutes of the match.
Read more: Health Check: how to exercise safely in the heat
Sweat evaporation is dictated primarily by the wetness of the skin, and the absolute humidity of the air. Absolute humidity is a function of the amount of water vapour in the air.
This is not to be confused with relative humidity which is the term usually used in weather reports. This tells us how much water vapour the air is holding (as a percentage) relative to how much it could possibly hold, which goes up with temperature.
The bigger the difference between the wetness of the skin and the absolute humidity, the more readily sweat evaporates.
Read more: Why do I sweat so much?
In arid climates, such as central Australia, where the absolute humidity is low, sweat evaporates so rapidly you can barely feel it on your skin.
Whereas in humid conditions, such as in northern Australia and more recently much of eastern Australia, sweat evaporation is hindered.
This is why on humid days we think we’re much sweatier, when in reality we may not be sweating that much more than any other warm day. It’s just more sweat is staying on our skin (rather than evaporating), forming patches on our clothes and making us feel sticky.
These three simple strategies will actually keep you cool on a humid day (without aircon):
1. Use a fan
Use a fan to increase air flow and accelerate sweat evaporation. These tend to work to at least 39°C.
Misting fans also work well as water settles on the skin and subsequently evaporates, taking body heat with it. Alternatively, you can spray your skin with water and sit in front of a fan.
2. Use ‘ice towels’
Wrap crushed ice in a damp towel and wrap it around your neck. Professional tennis players regularly do this to keep cool. This circumvents the need for evaporation by taking heat straight from the body via conduction.
3. Wet your clothes
Soaking your t-shirt with water and putting it back on reduces the increase in core temperature the same way as the evaporation of sweat. But it has the added bonus of not dehydrating the body. Alternatively, directly wetting the skin with a spray or wet sponge provides the same benefit.
Here are three strategies commonly recommended for beating the heat that won’t always work.
1. Evaporative cooling
Evaporative coolers work by passing hot air across a wet membrane to cool it. These work really well on hot, dry days. But on humid days, the air can hold less extra water, so evaporation is reduced and therefore, air is cooled far less.
2. Drinking chilled drinks
Although cold drinks may feel like they cool you down, it is mainly in your mind. Your body warms up the cold fluids or ice. At the same time, this triggers a reduction in sweating, which reduces the amount of heat you lose via evaporation. One cancels out the other.
This results in the same body temperature irrespective of how cold (or hot) the drink is.
We’re not suggesting abandoning drinks altogether. In fact, you do need to replenish water that you sweat, to avoid dehydration. But don’t expect cold drinks to perform any better than warm ones. Just drink fluid at the temperature you find most palatable.
Similarly, eating cold food, such as ice cream or other frozen or chilled snacks, does not result in any net cooling effect. By all means, eat them if they make you feel better, but don’t expect them to actually cool you down.
3. Sunscreen
While it is very important to protect you skin from UV, there is no evidence wearing sunscreen makes any difference to how hot you get or how hot you feel.
For people that live in the south dealing with humidity is a way of life. However, for those of us not accustomed to it learning how to deal with humidity may be uncomfortable and bothersome.
During the summer months, the air can become muggy and sticky making it uncomfortable to be outdoors for long periods of time. However, if you have an excess of moisture inside your home that feeling may still be present when you’re indoors.
Do you live in a humid climate? Some states are more susceptible to humidity than others.
States With The Moist Humidity
According to the Forbes article “Oh The Humidity. Which State Is The Most Humid,” a dew point over 75ׄ°F is considered very oppressive. It’s the amount of moisture that makes you sweat even at night without even moving. A dew point over 70°F is very moist; it’s like walking outside and getting drenched even though it’s not raining. In the southeast half of the U.S. during the summer months, this is very common. A dew point over 60°F is where it starts to “feel humid.” Dew points under 60°F generally feel comfortable and dew points under 30°F feel notably arid, like in Arizona and Nevada.
In that same article, they list the top humid states. The top 10 are (by dew point):
Hawaii
Florida
Louisiana
Mississippi
Alabama
Texas
Georgia
South Carolina
Arkansas
North Carolina
People living in these states, more than the other 40, need to come up with ways to deal with humidity in order to avoid water damage in their homes. It should also come as no surprise that Alaska came in at #50 with the least amount of humidity, although I’m not sure the snow, freezing temperatures, and endless nights make up for it.
How To Deal With Humidity
They say that living in a home with high ceilings is a good way to deal with humid climates, which is all well and good if you’re building a home from scratch, however, that tidbit of information does nothing for you if you want an immediate fix. Luckily, there are still ways for the rest of us to survive during the high-temperature months without completely uprooting our lives. Check out these tips for living in a humid climate.
1. Keep Your Windows Open (sparingly)
It may seem counterintuitive to open your windows on a hot day, but you actually want to let the air circulate through your home to avoid increasing humidity levels. Stagnant air can also make humidity feel worse as there is no release of air. You may also consider investing in a ceiling or portable fan. Increasing airflow is good but leaving windows open for too long, can potentially increase indoor moisture. Use caution on this step!
2. Brush Up on Your Gardening Skills
Studies show that a home with several house plants contains lower humidity levels than other homes. This is because plants extract many of their nutrients from the moisture in the air. Consider such plants as Boston Ferns or small cacti plants.
3. Flooring Options
Carpeting holds onto moisture, increasing the temperature and humidity in your home. Try using stone tile flooring in high-humidity areas such as the kitchen and bathrooms. Ceramic tile is also extremely waterproof and moisture-resistant.
4. Don’t Dry Your Laundry
When you run your dryer, the exhaust fumes increase your home’s humidity. Many people avoid using their dryer by hanging their clothes upon a laundry trestle, but this may actually contribute to your home’s humidity levels as well. Hang your clothes outside to keep your laundry room cooler.
5. Invest in a Dehumidifier
Whether you live in New York, Florida, or any other humid state, a mini dehumidifier is a must-have. Choose from a variety of units, including dampness protection models, odor eliminators, high capacity, and even home value pack dehumidifiers.
Tackle Your Indoor Humidity with Eva-Dry
Living in a humid climate is not just annoying, but can lead to health complications.
Eva-Dry dehumidifiers provide a safe and effective way to reduce moisture and musty odors all over your house around the clock. Place them in the areas that need them the most like under the kitchen sink, in your bathroom, closet, or bedroom. It absorbs the excess moisture into desiccant beads without the use of cords or batteries. It is silent as well as non-toxic.
Once the dehumidifier reaches max capacity just plug it into renew and in 8-10 hours it’ll be good as new.
To learn more about how to deal with the humidity using dehumidifiers, contact us today or check out our available units that are perfect for your home. Improving your air quality is just a click away.
If you are looking for more details, kindly visit our website.
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