暑いのは苦手だって英語でなんて言うの？

If you are trying to explain to someone that you do not like the heat outside, you can say something like "I don't like hot temperatures." or "I do not like the heat outside.".

You don't like it when the temperature is high outside and wish to explain this feeling to someone you know. You can do that by using one of the above example sentences which may be appropriate for any given scenario.

There are a variety of ways in which to say this. The first one written is quite a simple translation, which just says that you find it difficult to be outside when it's warm. The second is about personal preference, as in you might be able to function when it's hot, but you do not like it. The third is a more casual way of saying the first.

The first suggestion says that you do not enjoy high temperatures, and contains the word 'sweltering', which means hot to a level that is not comfortable. The second suggestion simply says that it is hot, and highlights that this is not something positive for you. The third suggestion is very casual, and is basically a joke way of highlighting how extreme the heat is. It contains the word 'bonnet', meaning the metal covering of the engine area on a car. Also saying of course that this is something that you do not like.

When we talk about high temperatures we refer to hot weather. So saying the temperature is high outside it refers to that it is hot outside. It could be nice and cool in your house, but as soon as you step outside it will be hot, because it is a high temperature outside. If it is very hot outside we usually refer to a scorcher or a scorching day. On hot days head for a pool or the sea to cool off and get out of the heat. Remember to stay hydrated on a hot day.

All three phrases are the type of thing you would expect to hear in conversational English. The first phrase contrasts the hot weather with the cooler weather that the speaker prefers. The current hot weather is referred to as "this". The second phrase is more conversational, and stated as a personal opinion on the current weather. The third phrase tells us that the person is finding it difficult to cope with the high temperatures, hence the use of the word "struggling"

If you wanted to explain and express that you do not like it when the temperature outside is high, you could say any of the following: "I don't like the heat", "I really do not handle high temperatures/heat very well" or "I am not a fan of hot weather".