Why You Might Get Sick While Traveling in Phuket in September — And How to Stay Healthy
Phuket is a tropical paradise known for its beaches, food, and cultural richness. But if you’re visiting during September, which falls in the peak of the rainy season, there are certain health risks you should be aware of. While most visitors enjoy their trip without any issues, staying informed can help prevent illness and make your stay safe and enjoyable.
1. Dengue Fever – A Seasonal Risk

September is one of the wettest months in Phuket, making it a high-risk time for dengue fever. Stagnant rainwater creates breeding grounds for Aedes mosquitoes, which spread the dengue virus.
Common symptoms:
- High fever
- Muscle and joint pain
- Skin rash
- Headache or eye pain
Prevention tips:
- Use mosquito repellent regularly
- Wear long sleeves and pants, especially in the early morning and late afternoon
- Avoid areas with standing water
- Stay in accommodations with screens or air-conditioning
2. Foodborne Illness and Traveler’s Diarrhea

Heavy rain can sometimes lead to sanitation issues, especially at street food stalls. Contaminated water or food may lead to stomach upset, nausea, or diarrhea.
What to watch for:
- Diarrhea
- Vomiting
- Stomach cramps
- Fever
Prevention tips:
- Eat fresh, cooked food from clean vendors
- Drink bottled or boiled water
- Avoid ice in drinks if you’re unsure of the source
- Wash your hands before eating or use alcohol gel
3. Respiratory Infections

Humidity and sudden changes in temperature between air-conditioned rooms and the outdoors can trigger colds, sore throats, or even bronchitis.
Symptoms:
- Cough
- Runny nose
- Sore throat
- Mild fever
Tips to stay healthy:
- Avoid cold air directly after being wet from rain
- Keep yourself dry and warm
- Boost your immunity with vitamins, rest, and hydration
4. Skin Issues: Rashes, Fungal Infections, and Sunburn

The combination of humidity, sweat, and wet clothes can cause skin irritation or fungal infections. On the flip side, if the sun comes out, sunburn becomes a risk—especially for tourists unaccustomed to tropical UV levels.
Skin protection tips:
- Change out of wet clothes quickly
- Use medicated powder or antifungal creams as needed
- Apply sunscreen even on cloudy days
- Stay hydrated to keep skin healthy
5. Insect Bites and Allergies

Aside from dengue-carrying mosquitoes, other insects like sandflies, ants, and bees are more active during and after rainfall. Allergic reactions are not uncommon in tourists.
Prevention:
- Use insect repellent
- Sleep under a mosquito net if needed
- Carry antihistamines if you’re allergy-prone
If You Get Sick While in Phuket, Don’t Panic
Getting sick while traveling is unfortunate but manageable—especially when you act early.
Visit Doctor Karon Clinic for Trusted Care in Phuket
At Doctor Karon Clinic, we specialize in providing safe, fast, and affordable medical services for tourists and expatsin Phuket. Whether you have a fever, food poisoning, a rash, or need IV therapy for recovery—we’re here to help.
Services include:
- Dengue testing and monitoring
- Traveler’s diarrhea treatment
- Cold & flu management
- IV drip therapy & rehydration
- Skin condition treatments
- English-speaking doctors
We’re conveniently located near Karon Beach with walk-in and online booking options.
Contact us today: