Marie Claire UK Marie Claire UK
  • Fashion Fashion
      • Fashion
        • View all Fashion
        • Fashion Trends
        • Shopping
        • Watches and Jewellery
        • Fashion News
  • Beauty Beauty
      • Beauty
        • View all Beauty
        • Fragrance
        • Hair
        • Make Up
        • Skincare
        • Nails
        • Marie Claire Beauty Awards
  • Health Health
      • Health
        • View all Health
        • Fitness
        • Nutrition
        • Female Health
        • Wellbeing
  • Life Life
      • Life
        • View all Life
        • Opinions
        • Travel
        • Sustainability
        • Weddings
        • Money & Work
        • Competitions
  • Culture Culture
      • Culture
        • View all Culture
        • TV and Film
        • Celebrity News
        • Books
        • Royal News
  • Vouchers Vouchers
      • Clothing
        • View all Vouchers
        • Mint Velvet
        • Karen Millen
        • H&M
        • nobody's child
        • ASOS
        • ARKET
        • MANGO
      • Designer Clothing
        • View all Vouchers
        • Reiss
        • THE OUTNET
        • SSENSE
        • Mytheresa
        • Liberty London
        • Selfridges
        • Farfetch
      • Accessories
        • View all Vouchers
        • AllSaints
        • Aspinal of London
        • Charles & Keith
        • River Island
        • FitFlop
        • Kate Spade
        • Vagabond
      • Jewellery
        • View all Vouchers
        • Pandora
        • Abbott Lyon
        • Goldsmiths
        • Beaverbrooks
        • Astrid & Miyu
        • Swarovski
        • Angara Jewellery
      • Beauty
        • View all Vouchers
        • Sephora
        • Cult Beauty
        • Space NK
        • Dyson
        • Clarins
        • Look Fantastic
        • Clinique
      • Activewear
        • View all Vouchers
        • Lululemon
        • Gymshark
        • Sweaty Betty
        • Nike
        • adidas
        • New Balance
        • Helly Hansen
  • NEWSLETTER Signup to our newsletter
  • logoCreated with Sketch.
    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!


    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    You are now subscribed

    Your newsletter sign-up was successful


    An account already exists for this email address, please log in.
    Trending
    • Women in Sport 2026
    • Marie Claire Masters
    • Spring Summer 2026
    • Nail Trends 2026
    • Best Investment Bags
    • Best Perfumes
    • Digital Issues
    • Women Who Win
    1. Health and Fitness

    What to do when it's too hot to exercise

    Penny Goldstone's avatar
    By Penny Goldstone
    Published 25 July 2019 In Features

    When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

    • Facebook
    • X
    • Pinterest
    Share this article
    Join the conversation
    Follow us
    Add us as a preferred source on Google
    Subscribe to our newsletter

    Want to carry on training despite the heatwave? Follow these five tips by Lucie Cowan, master trainer from Third Space.

    Hold off on the HIIT

    If you usually spend that golden 45 minute lunch break in the HIIT studio, trying to pack in as many burpees or tuck jumps as possible before you’ve got to be back at your desk, take the heat wave as an opportunity to discover the many benefits of mixing it up. Steady-state cardio is continuous, moderate effort training which is sustained for an extended period of time. Aim to work at a 6 out of 10 on a perceived exertion scale where 10 your max. (So that’s roughly 65–70% of your max heart rate).

    For example, try ‘Just Ride’ at Third Space. A moderate intensity cycle class, where you can simply lose yourself in the music. Not only does this type of training promote recovery, but might leave you feeling far less stressed than your usual HIIT class once you’ve been turfed back to your desk!

    Alternatively, if the thought a cardio session is unappealing, here’s the push you needed give strength training a go. Hit the free weights for some heavy squats, luges and deadlifts- You’ll wonder how you ever lived without it.

    Hydrate

    Sorry to state the blindingly obvious, however the importance of adequate hydration is still too often overlooked. When we exercise, we lose water at an accelerated rate through faster, deeper breathing and increased sweat production, shedding our critical nutrients and electrolytes too.

    You may like
    • A woman on the beach, in a bikini, eating some fruit I'm an Exercise Physiologist—If You’re Feeling Puffy, Tired, and Achy This Summer, These Everyday Habits Could Be Playing a Role
    • Period in a heatwave: A woman holding a grapefruit to her stomach A Gynaecologist Explains Why Your Cycle Feels More Difficult During a Heatwave—And How to Make It a Bit More Bearable
    • Woman holding a yoga mat I Tried Red Light Pilates to Boost Recovery, Wellbeing and Longevity—Here's What Actually Happened

    As soon as your fluid levels begin to drop below recommended amounts, you’ll probably start to feel it. Reduced energy levels, muscle cramps, constipation, and dizziness may all become apparent, which of course can lead to reduced performance in the gym. If you feel thirsty, there’s a good chance that you are already dehydrated. That said, it’s possible, even common, for adults to be dehydrated without experiencing thirst. Sip water evenly throughout the day, throughout your workout and afterwards, alongside your meals, and add some electrolytes if you’ve sweated out buckets. After your workout, try snacking on water-dense foods such as cucumber, watermelon or oranges to help the body replenish what it’s lost.

    Careful of the sweat rash

    A common problem that is frequently experienced when training in the heat is sweat rash. Perhaps you have seen your skin break out after working out and wondered, can sweat cause a rash!? The answer is indeed yes- is a fungal yeast infection caused by a yeast known as candida. This rash after sweating develops from humidity, lack of ventilation and friction. Opt for lightweight, loose clothes, and as soon as you’ve finished your workout, don’t be temped to sit and have a smoothie and a chin-wag in those sweaty clothes- get straight into the shower and into clean dry clothes ASAP.

    Marie Claire Newsletter

    Celebrity news, beauty, fashion advice, and fascinating features, delivered straight to your inbox!

    By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over.

    Avoid training at the hottest time of the day

    Heat and humidity are far higher towards the end of the day, so an early morning workout is a better option in the hot weather. Alternatively, you could exercise late in the evening due to the longer daylight hours.

    Just keep swimming

    Panic not cardio bunnies, if you have no other option but to tackle the midday training session, when the weather is too hot to even think of that treadmill, swimming is the ideal replacement. In addition to being super refreshing on a scorching day, swimming is a fantastic low impact, total body workout, building endurance, stamina and strength. All our Third Space clubs have beautiful swimming pools to make you forget you’re in central London in a heat wave!

    Penny Goldstone
    Penny Goldstone
    Social Links Navigation
    Contributing Fashion Editor

    Penny Goldstone is the Contributing Fashion Editor at Marie Claire UK. She writes about catwalk trends and the latest high street and Instagram sartorial must-haves. She also helms the Women Who Win franchise.

    She has worked in fashion for over 10 years, contributing to publications such as Cosmopolitan, Red, Good Housekeeping, and Stylist.

    Read more
    A woman on the beach, in a bikini, eating some fruit
    Female health I'm an Exercise Physiologist—If You’re Feeling Puffy, Tired, and Achy This Summer, These Everyday Habits Could Be Playing a Role
    Period in a heatwave: A woman holding a grapefruit to her stomach
    Female health A Gynaecologist Explains Why Your Cycle Feels More Difficult During a Heatwave—And How to Make It a Bit More Bearable
     
     
    Woman holding a yoga mat
    Fitness I Tried Red Light Pilates to Boost Recovery, Wellbeing and Longevity—Here's What Actually Happened
    Author of The Path Through Objects, Neuro-Somatic Performance Coach and Yoga Instructor Eva Syti
    Wellbeing I've Led 500+ Sauna Sessions in the Last 18 Months—Almost Every Client Makes These 3 Mistakes
     
     
    Latest in Health and Fitness
    Arsenal footballer and Lioness Chloe Kelly
    Health and Fitness Women in Sport 2026: Featuring Chloe Kelly, Elite Beauty Products, Grand Prix 2.0 and So Much More
    Eva Syti, yoga coach, ARC sauna leader and breathwork practitioner
    Wellbeing Most People Think They're Manifesting Correctly—But Usually Miss These 3 Essential Steps
     
     
    A woman lying on the floor scrolling on her phone
    Female health If You're Frazzled, Overworked and At Your Limit, These 5 Science-Backed Tips Can Help Avoid Burnout
    Health freelancer Anna Bartter treating friendship as a wellness habit: at a concert, at a bar, and with friends
    Wellbeing I Treated Friendship Like a Wellness Habit for Two Months—It Changed My Mental Health More Than I Expected
     
     
    Latest in Features
    The long hair trend and the post-bob era
    Hair I’ve Spent Two Years Growing My Bob—Turns Out, There's a Reason Long Hair Is Trending
    @nlmarilyn in transitional autumn outfits
    Fashion Goodbye Summer Dresses, I'm in Autumn Outfit Planning Mode—These 5 Are Fresh
     
     
    Arsenal footballer and Lioness Chloe Kelly
    Health and Fitness Women in Sport 2026: Featuring Chloe Kelly, Elite Beauty Products, Grand Prix 2.0 and So Much More
    Mischa Anouk Smith on an astrology travel trip to Türkiye, where she got engaged less than 24 hours after a birth chart reading.
    Travel I Let Astrology Plan My Holiday—Less Than 24 Hours Later, I Was Engaged
     
     
    logoCreated with Sketch.
    • Site Archive
    • Contact Future's experts
    • Contact us
    • Terms and conditions
    • Advertise with us
    • Privacy policy
    • Cookies policy
    • About us
    Add as a preferred source on Google Add as a preferred source on Google

    Marie Claire UK is part of Future plc, an international media group and leading digital publisher. Visit our corporate site.

    © Future Publishing Limited Quay House, The Ambury, Bath BA1 1UA. All rights reserved. England and Wales company registration number 2008885.