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Post by Beercules on Dec 27, 2023 20:00:19 GMT -5
Living in a hypderdry climate, where 75% of annual lows are below 10C, and dewpoints spending 95% of their time in the single digits, I notice anything above 10C, and sweat litres above 15C.
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Post by AJ1013 on Dec 27, 2023 21:09:59 GMT -5
For summer > 85 F: Oppressive 80 F-85 F: Very humid 70 F-80 F: Neutral 65 F-70 F: Dry < 65 F: Very dry Does Florida actually experience 85 F dew points? Judging from Weatherspark and my phone's Weather app, that mostly seems exclusive to the Persian Gulf and Red Sea coasts, Indo-Gangetic Plain, Bay of Bengal coast of India, and certain parts of Mainland SE Asia (Chao Phraya delta, Red River delta) The indoor summer dew point where I live is usually between 15-20 C and often surpasses 20 C if it gets above 26 C (indoors) on several days in a row. Opening windows at night lowers the temperature but doesn't really equalize indoor dew point with outdoors, which is generally between 11-17 C but IMO is more likely to go below 11 C than above 17 C. > 25 C: oppressive, Asia-tier humidity 21-25 C: very humid 17-21 C: humid 11-17 C: neutral 7-11 C: dry <7 C: very dry No. Average dewpoint at the peak of summer is ~75F and dewpoints over ~80F are quite rare. |
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Post by greysrigging on Dec 27, 2023 21:44:08 GMT -5
27c dew points in and around Darwin at noon.  |
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Post by greysrigging on Dec 28, 2023 0:41:34 GMT -5
DP as high as 29.1c today at Darwin Airport !   East Point ( coastal suburb, Darwin ) since 9.00am  |
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Post by CRISPR on Feb 24, 2024 2:20:30 GMT -5
I think that the same dew point can feel very different depending on the heat index: 21ºC air temp + 21ºC dew is just moldy, and may even feel cool with wind. However, 36ºC air temp + 21ºC dew is quite uncomfortable.
Here's mine:
25ºC (77ºF)+ : Never experienced.
22ºC (73ºF)+ : Muggy and sticky, even light exercise becomes uncomfortable.
19ºC (66ºF)+ : Definitely humid, but walking is still ok. However, both anaerobic and aerobic exercise becomes quite unpleasant.
15ºC (59ºF)+ : Noticeably humid, but still
10ºC (50ºF)+ : Neutral: neither humid nor dry
5ºC (41ºF)+ : A little dry: my skin is still ok
0ºC (32ºF)+ : Dry, skin itches!
Below 0ºC (32ºF): Very dry, time for atopic dermatitis!
Below -5ºC (23ºF): Never experienced.
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Post by greysrigging on Feb 24, 2024 2:57:04 GMT -5
Was a shithouse sorta a day in the Top End yesterday.. see these max/dp combos
Point Stuart - 34.8c/29c
Darwin Airport - 34.3c/26c
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Post by greysrigging on Feb 24, 2024 4:36:47 GMT -5
I think that the same dew point can feel very different depending on the heat index: 21ºC air temp + 21ºC dew is just moldy, and may even feel cool with wind. However, 36ºC air temp + 21ºC dew is quite uncomfortable. Here's mine: 25ºC (77ºF)+ : Never experienced. 22ºC (73ºF)+ : Muggy and sticky, even light exercise becomes uncomfortable. 19ºC (66ºF)+ : Definitely humid, but walking is still ok. However, both anaerobic and aerobic exercise becomes quite unpleasant. 15ºC (59ºF)+ : Noticeably humid, but still 10ºC (50ºF)+ : Neutral: neither humid nor dry 5ºC (41ºF)+ : A little dry: my skin is still ok 0ºC (32ºF)+ : Dry, skin itches! Below 0ºC (32ºF): Very dry, time for atopic dermatitis! Below -5ºC (23ºF): Never experienced. Yeah... one of the reasons I take offence at FB social media idiots calling out the heat wave warnings we see nowadays as 'get over it, irs summer' b/s stuff.... Dew points can and do cause grief to the unacclimatised if the air temps are in the +32c range This time of the year in Darwin, every day is +25c dp's... ( 0ct through to about April ). Now I'm OK with it... except for the 29c/26c overnight min this morning meant a tough nights sleep without AC. ( I have AC but dont use it unless I have visitors up from down south ) In the dry season we get the odd neg DP readings too... dry flakey skin, chapped lips etc... I prefer the moist air myself.... |
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Post by Beercules on Feb 24, 2024 5:13:37 GMT -5
I'd argue that dewpoints are as important as temperature, if not more so. A 30C day with 5C dewpoint feels nice, almost cuddly. A 30C day with a 25C dewpoint.... well that feels as different as a 20C and 40C day just about.
There needs to be more awareness about dewpoints. Perception of heat, and comfort, is very, very directly affected by dewpoint at a given temp.
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Post by Cadeau on Feb 25, 2024 12:26:52 GMT -5
<12°C: Getting dry
12-15°C: Gray area
≥15°C: Getting humid
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Post by Crunch41 on Feb 27, 2024 20:11:03 GMT -5
I prefer vapor pressure.
0: Dry >0 : Anything above zero is wet by definition. The higher the vapor pressure gets, the wetter it is. Vapor pressures above 1 atm are very unpleasant.
/s The vapor pressure of water reaches 1 atm at 100C, the temperature it boils.
The chart from greys is close enough for me. I don't have much experience at the high end of the scale. The low end is debatable. A dew point of 12C doesn't feel noticeably dry to me . I don't feel any humidity but "dry" makes me think of something unpleasant, and 12C is not that. It never gets unpleasantly dry here in summer. That's a winter thing. |
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Post by Ethereal on Feb 29, 2024 0:20:00 GMT -5
>=24c: Oppressive
22-23c: Muggy
20-22c: Very Humid
18-20c: Humid
16-17c: Normal
11-15C: Dry
<=10c: Very Dry
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Post by Benfxmth on Jul 31, 2024 10:39:10 GMT -5
Assuming resting, living in a climate with warm humid summers and being acclimatized to it and dry bulb temps around 90°F
>=83°F: Oppressive
80-82°F: Muggy
76-79°F: Slightly humid
72-75°F: Neutral
60-71°F: Dry
<=60°F: Hyperdry
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Post by Cheeseman on Aug 1, 2024 22:04:48 GMT -5
<60: not humid at all 60-65: slightly noticeable 65-69: a little sticky 70-74: properly sticky 75-79: very sticky 80+: I don't think I've ever experienced this before Keep in mind, I use "sticky" as a positive descriptor! I was alive for the 90 F (32 C) dew point record in Appleton, WI, in July 1995 and lived there at the time, though I was too young to remember it. I've seen 80 F dew points several times; most recently here in Madison last August. It's soupy, that's for sure. A dew point of 12C doesn't feel noticeably dry to me . I don't feel any humidity but "dry" makes me think of something unpleasant, and 12C is not that. It never gets unpleasantly dry here in summer. That's a winter thing. Yep, to me "dry" is below about 0 C, when my skin starts to dry out and I'm more susceptible to nosebleeds. |
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Post by arcleo on Aug 3, 2024 20:08:56 GMT -5
>26c: Oppressive (Have no memories of experiencing this, but extrapolating)
22-26c: Muggy
18-22c: Humid
14-18c: Neutral
10-14c: Dry
<10c: Very dry
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