Ticks and Fleas in Summer

Understanding why ticks and fleas thrive in summer

Fleas and ticks love warm, humid weather, which is why they’re much more active during the summer months.

Fleas can complete their entire life cycle in as little as 14 days when it’s warm, meaning they reproduce quickly and can become a problem fast. Ticks also thrive in warmer temperatures, especially in grassy or wooded areas, where they wait to latch onto passing pets.

Regional issues - areas in the UK or globally with increased seasonal activity

In the UK, ticks are more common in:

- Woodlands, moorlands, and grassy areas

- Coastal and rural areas, where wildlife is more active

- Regions with warmer, drier summers, like parts of central and eastern England

Globally, climate change is increasing flea and tick activity in more areas than ever before, so it’s important to be vigilant no matter where you are.

Ticks and Fleas in Summer: Signs to watch out for

You might not see fleas or ticks right away, but your pet will show signs of discomfort. Watch for:

Excessive scratching, biting, or licking

Hair loss or scabs

Red, inflamed skin

Tiny black specks in their fur (this could be flea dirt)

Visible ticks on the skin, especially around the ears, neck, and legs

Ticks and Fleas in Summer: Signs to watch out for

Prevention of Ticks and Fleas: what works best in warmer months

The best way to protect your pet is with a preventative routine, especially during the warmer months:

For your pet:

Use regular flea and tick treatments (spot-ons, tablets, collars, etc.)

Bathe and brush your pet regularly

Use a flea comb to check for signs of fleas or ticks

Wash your pet’s bedding and blankets often

For your home and garden:

Vacuum carpets and furniture regularly

Use household flea sprays if needed

Keep the garden tidy—cut grass short and avoid overwatering

Treat outdoor spaces like dog runs or shaded areas

Going on holiday in the UK? What to consider?

Even if you’re staying within the UK, flea and tick risks can vary depending on the location. If you’re heading to:

Countryside retreats

Coastal walks

Woodland or parklands

Make sure your pet is up to date on flea and tick prevention before you go. Always pack their treatments and give them a check over after walks.

If travelling abroad, check requirements via Defra
If you’re going abroad with your pet, check the travel rules on the DEFRA website and speak with your vet.

A rabies vaccine is mandatory

Tick treatment may not be required, but it’s strongly recommended

Your vet can advise the best protection for your destination

Prevention of Ticks and Fleas: what works best in warmer months

Treatment once ticks or fleas are detected

If you spot fleas or ticks on your pet, don’t panic, there are safe, effective treatments available:

- Topical treatments (spot-ons)

- Oral medications (chewables or tablets)

- Flea collars

- Medicated shampoos or wipes for itchy or irritated skin

- Home sprays and thorough vacuuming for your environment

Always follow your vet’s advice to make sure the treatment is right for your pet, and don’t forget to treat your home as well as your pet to stop the problem from coming back.

Need advice or treatment? We’re here to help. If you’re unsure which flea or tick prevention is right for your pet, or you’ve spotted something unusual, book a free consult today.

Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published May 2025 | Review date May 2027 | This advice is for UK pets only and is not a replacement for seeing a vet