I set out this morning and it was about 18C and getting hotter. So before leaving home I drank a cup of nettle & peppermint tea and 2 glasses of water. I also took a small bottle of water with me, first time I've ever carried any.
On getting home I drank another 2 glasses of water and over the following hour hand another two cups of tea. Was it excessive, no my body told me I needed it, so are you downing enough water, juice etc while running in this hot weather?