Staying Safe in the Summer Sun with Diabetes 

Summer brings long days, warm weather, fresh air, and plenty of opportunities to be active. It’s a great time to enjoy exercise, fresh fruit and vegetables, and soak up some vitamin D. But the hot Australian sun can also pose health risks, especially if you have diabetes — so taking a few precautions is essential. 

Tips for Enjoying the Beach and Water 

Swimming is a fantastic way to stay active and social during Summer, but safety comes first. Here are some simple tips to keep in mind: 

• Wear identification to alert others that you have diabetes in case of an emergency. 
• Pack snacks so you can stay energised throughout the day. 
• Stay hydrated with plenty of water, especially in the heat. 
• Make sure to remember your hypo treatments, such as glucose gel pouches which can be safely attached to your swimwear. 
• Protect your feet with appropriate footwear, especially on rocky or public pool surfaces. 
• Swim in patrolled areas and avoid swimming alone. 

Snacks and Hydration 

If you are planning on being out for extended periods, it’s best to plan ahead so you don’t have to press pause on your activities. 

Make sure to bring plenty of snacks and fluids for the day and aim to consume 15-30g of carbohydrates every 30-60 minutes of mild to moderate exercise. 

It’s easy to get swept up in the fun when you’re out in the water, but remember to drink regularly – around 150–250ml every 15–20 minutes. 

Insulin Storage Tips 

Storage of insulin is very important in the warmer months – especially when heading out for the day. If you need to take insulin with you, keep it cool but not frozen, ideally in a cooler pack with an ice brick. Avoid direct contact between ice and insulin. 

Make sure to: 

• Store insulin out of direct sunlight – keeping below room temperature (up to 25°C) is ideal. 
• Bring a sharps container for safe disposal of used equipment. 
• Remember that cooling wallets or cases are helpful for keeping pumps and insulin at a safe temperature. 

Using Insulin Pumps in Summer 

If you are using an insulin pump, make sure to keep it out of direct sunlight when being worn, and in a cooler bag if it is removed. You might also like to bring a cooler pack to keep your insulin at the right temperature – cool but not cold.   

Whilst some pumps may be waterproof, it’s best to disconnect the pump if swimming in the ocean to make sure it doesn’t get lost or damaged. Remember to check your blood glucose levels regularly if you disconnect your pump while swimming, as this is physical activity too! Pack an extra cannula set and a small sharps container just in case. 

General Summer Safety Tips 

• Bring extra hypo supplies or fast-acting carbohydrates for the day. 
• Remember that hypos can occur 12–24 hours after exercise. 
• Stay hydrated and drink regularly, even if you don’t feel thirsty. 
• Be aware that upper body exercise, such as swimming, may lower blood glucose faster. 
• Dress for the sun: wear light-colored, loose clothing, slip on a shirt, slop on sunscreen (SPF 50+), and slap on a hat. Reapply sunscreen every 90 minutes and after swimming. 

With a few simple precautions, you can enjoy all that summer has to offer while keeping your diabetes safely managed. 

Content adapted from Diabetes Australia.