When the temperature hits 26 degrees C, Brits consider it too hot to cuddle, blow-dry their hair and even wear clothes.
A poll of 2,000 adults saw driving, cleaning the house and doing DIY also feature in the top 20 list of things they avoid doing when the mercury rises.
It emerged the ‘perfect’ temperature on a British summer’s day is 22 degrees, while anything below 15 degrees is considered too cold.
But a quarter admitted that while they long for tropical temperatures, they usually moan when they come around.
However, when they are abroad, 30 per cent want it to be at least 26 degrees, with 38 per cent going on holiday to another country purely for the heat.
The study comes as the Met Office has warned of another heatwave this week, with temperatures of 35 degrees expected into the weekend.
Gemma Morgan, from Volvic Touch of Fruit, which commissioned the research and is offering free Tuk tuk rides around London, said: “Brits have a love-hate relationship with the weather - and summer is no exception.
"With warm sunny weather continuing, we’re bringing Tuk Tuk rides to London this weekend to help keep Brits cool and take an average summer day beyond your expectations.”
Temperature is a 'hot' conversation subject
It also emerged men are slightly happier with the heat (55 per cent) than women (47 per cent).
But while 48 per cent think it’s typically British to moan about the temperature – whether hot or cold – 24 per cent argue we should cherish the rare spells of heat.
And 45 per cent make the most of warm temperatures by spending time in green spaces, and 31 per cent dislike being stuck inside.
More than half (55 per cent) have even turned down or cancelled social plans because it was sweltering.
But on the flip side, 39 per cent typically stay indoors out of choice when it’s hot in the UK.
Nearly one in five (19 per cent) think hot weather in this country isn’t enjoyable because their routine doesn’t change, meaning they still have to work and aren’t able to sunbathe.
The study also found that when they feel too hot, those polled, via OnePoll typically drink more (35 per cent), wear loose clothing (32 per cent) and put a fan on (30 per cent).
While the go-to food and drinks to tuck into to cool down are water (53 per cent), ice cream (38 per cent) and beer (23 per cent).
These are the top 20 activities it’s ‘too hot’ for
4. Going on a walk/run
5. Cooking/ baking
7. Working outside
10. Working in an office
11. Wearing clothes
12. Drinking a hot drink
13. Walking bare foot on sand
17. Walking the dog
19. Blow-drying hair
20. Wearing make-up