Guide

What is a comfortable dew point?

What dew point is comfortable?

Below 55°F feels dry and pleasant to most people, and 55–60°F is still comfortable. Discomfort begins in the low 60s, is general by 65°F, and above 70°F the air feels oppressive. There is real individual variation and some acclimatisation, so treat these as the middle of a distribution rather than hard lines.

The short answer, with the caveat attached

Under 55°F and almost nobody notices the air. Between 55 and 60°F it is still comfortable. From 60°F it starts to feel present, by 65°F it is muggy to most people, and past 70°F it is oppressive.

The caveat matters more than usual here, because comfort is the one thing on this site that is not purely physics. Someone who has spent a summer in Houston will find 68°F ordinary; someone who has spent it in Denver will find it brutal. The bands are the middle of a wide distribution.

Why the threshold is a dew point and not a percentage

You can sweat in 90% humidity and be perfectly comfortable, or be miserable at 50%. Neither is a paradox once you know the temperature.

Comfort in warm weather is about whether sweat can evaporate, and evaporation is driven by the difference between the water at your skin and the water already in the air. What matters is therefore the amount of water in the air — which the dew point measures directly, and which the percentage only measures relative to a moving ceiling.

Three days that all read 60% relative humidity.
Air temperature	Dew point	How it feels
55°F	41°F	Dry and cool. Nothing to notice.
75°F	60°F	Warm, slightly close. Pleasant enough.
95°F	79°F	Punishing. Sweat runs without cooling.

Same percentage, three completely different days — which is the whole reason dew point beats humidity as a comfort measure.

What each threshold actually changes

The bands are not arbitrary points on a scale of unpleasantness. Each corresponds to something observable:

55°F — laundry outdoors dries in an afternoon. Finishes cure overnight without trouble.
60°F — the first point at which people spontaneously mention the humidity. Overnight lows stop falling much below this.
65°F — mild exertion produces sweat that does not evaporate. Glasses fog on stepping outside from air conditioning.
70°F — nights stay warm and uncomfortable, because air cannot cool below its own dew point. Sleep quality drops measurably for most people.
75°F — genuinely tropical. Rare outside the deep subtropics.

The cold end

The scale above is about summer, and it stops being useful in winter, when the question reverses: the air is not too full but too empty.

Below a dew point of about 30°F the air is dry enough to draw water out of everything it touches. That is where static shocks, cracked lips and dry sinuses come from, and it is why heated indoor air in a cold climate is so dry: cold outdoor air holds very little water, and warming it does not add any.

Where to see today's

The dew point chart has the full scale in both units with a printable grid, and the calculator converts a temperature and humidity if that is what you have. For the current outdoor figure where you are, use humidity today.

Common questions

Is a 60 degree dew point comfortable?

It is right on the boundary. 60°F is where most people begin to notice the air — not uncomfortable yet, but no longer invisible. A 60°F dew point on a 70°F day feels close; the same dew point on a 90°F day feels considerably worse, because the body is working harder.

What dew point is too humid?

Above 65°F most people are uncomfortable, and above 70°F almost everyone is. The practical marker is that sweat stops evaporating fast enough to shed heat, so effort that would be easy in dry air becomes hard work.

Why does the same dew point feel different to different people?

Acclimatisation is real — people who live in humid climates genuinely tolerate higher dew points — and so is variation in body size, fitness and sweat rate. Clothing and wind matter too. The bands describe a population, not a person.

Does a low dew point cause problems too?

Yes, at the other end. Below about 30°F the air is dry enough to pull moisture out of skin, airways, timber and soil. That is where static, chapped lips and dry sinuses come from, and it is why very cold weather feels dry indoors once the air is heated.

Is the dew point comfort scale official?

No. It is forecaster convention, published in whole Fahrenheit degrees by National Weather Service offices and widely repeated, but there is no standards document behind it in the way there is for the 30–50% relative humidity range in ASHRAE 55.

Sources

NOAA / National Weather Service — Dew point vs humidity

Published 31 July 2026