zeppinger

Waking up early, taking naps in the hottest part of the afternoon, and riding until sundown. In the hottest places, like Cambodia, Vietnam, and India, most road side eateries have hammocks instead of chairs to sit in which double as nap places.

Vietnam was the best because the only food most road side places had was pho which is a hot spicy soup which would always put me to sleep. After I woke up in the hammock to slightly cooler temperatures I always ordered an ultra dark coffee which was fantastic there thanks to the French.

alexaschwanden

92F is so far the highest for me, today was 84F and i got sunburned after 4.5+ hours of riding.

Machka 

Appropriate question for this time of year!

Victoria, where we used to live is up in the 40s these day. Tasmania has trouble maintaining that kind of heat for any length of time because of the Antarctic. A little bit of a south breeze, and it's cold again.

However, in answer to the question, I have cycled in temps up in the mid-40s (110 - 113F) in both Queensland and Victoria.

wipekitty

The hottest I did, temperature wise, was about 110 F during the Santa Ana winds in Southern California.

I also rode, on an almost daily basis, for about a year in Mobile, Alabama. In July and August, it was common to have temperatures in the high 90s with very high humidity, making for heat indices of over 120F. On those days, it was important to pre-hydrate and find as much shade as possible. Just like winter riding, it's possible with some preparation.

aaronmcd

Probably a good bit over 100. I rode to work and school in Arizona for a few years. You get used to it, apparently. I didn't mind. You're soaking in sweat all day regardless. Pretty sure I was a camel, because I didn't even drink water all day until I got home. Didn't even get thirsty or think of it. I'd have some coffee at work though.

swwhite

I did 105F once in Minnesota. It doesn't often get over 100 here.

wphamilton

Although I'm a wimp in cold weather, I haven't yet seen it too hot to ride. The warmest here I think was 105. I grew up in West Texas during a period where 110+ wasn't unusual - I think that's why it doesn't bother me. The humidity here is sometimes a problem with the heat. Dry heat, for me, is much easier to handle.

wilfried

I hate summer. I hate heat. I dread the thought of it. That said, our temperatures generally top out in the high 90s and humid, and that doesn't stop me from riding. I just complain bitterly about it. And sweat.

Riding in the heat is still preferable to the subway, where the platforms can be 120+, and there's no telling how long you might have to wait for the train.

SHBR

30C (86F) in Shanghai. July and August it rarely dips below that during the day. (humidity + pollution = nasty)

I ride at night to avoid the heat if possible.

Last summer we had two weeks of 40C+ (104F).

I do all my commuting via the bus and subway system.

Jim from Boston

I've ridden in the 90’s with variable humidity, but it's always more tolerable with shade. I use a sun screen, and seek out periodic dousings with water. My worst experience was once going up a moderate hill. and suddenly felt a chill. Fortunately there were trees at the top, and I recovered after a few minutes rest.

Machka 

I've felt that chill too ... when the temperature was up around 40C ... and you know there's no way you should be feeling any sort of chill!! Uh-oh!!

2manybikes

I felt that chill once,also. Because of my reading about bike related things, possibly from here, I knew what it was. I knew what to do to fix it. If I had not read about it before it happened, I might have kept going, it was not terribly uncomfortable.
It happened to a friend of mine, and we could not talk her into going in the air conditioned store. She did stop in the shade and eventually it went away.

Roody

It is currently 26F or -3C. That is the hottest weather I have ridden in this year.

RPK79

+1

If it drops below 50F I'm not a fan of riding, but I don't care how hot it gets. Just bring some extra water or make plans for a stop to refill.

Mark Stone

Probably about 105, but rarely.

Walter S

106F here in Atlanta. I don't know what the index was, but the humidity down here makes that a whole lot hotter than the same thing out west. But I don't mind the heat. I like it so much better than the cold. I'm not too modest to lose most of my clothes. As long as I can keep plenty of water moving thru me I'm fine. But on all day rides I'll most definitely slow down. I can't keep hydrated regardless of how much I drink, past a certain point. I'll have belly full of water and need more.

fantom1 

100F is about all I can handle depending on wind, humidity, etc. That said, a ver humid day at 90 is much much less enjoyable

wahoonc

I love how people complain how hot it is... and have no clue what humidity does to it.

I was out in Denver a few years back and everyone was complaining about how brutally hot it was. I am sorry but 80*F and 45% RH ain't hot. They thought I was nuts because I was wearing long sleeved t-shirts.

Aaron