In tropical countries like Indonesia, season changes may not bring snow or spring
blossoms—but they do bring something else: health risks. The transition between dry and rainy
seasons in Indonesia causes fluctuating weather, rising humidity, and unpredictable
temperatures. This shift can have serious impacts on your immune system and overall
well-being.
Whether you’re an expat, long-time resident, or traveler in Bali, understanding how to protect
yourself during seasonal changes is key to staying healthy.
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What Happens During Season Change in Indonesia?
The weather during the seasonal change in Indonesia becomes erratic. One minute it’s sunny,
the next it’s a tropical downpour. These shifts often lead to a spike in common diseases in
Indonesia, especially respiratory infections, skin conditions, and digestive issues.
Humidity levels soar, creating the perfect environment for bacteria, mold, and allergens to thrive.
As a result, seasonal allergies in Indonesia tend to flare up—especially for those sensitive to
airborne particles, dust, or pollution.
Common Illnesses & Vulnerable Groups
Some of the most common health issues during seasonal transitions include:
● Flu and colds
● Asthma and bronchitis
● Allergic rhinitis
● Diarrhea and foodborne illness
● Skin rashes and infections
Vulnerable groups such as young children, the elderly, and individuals with compromised
immune systems are most at risk. Tourists unfamiliar with the tropical climate may also be more
susceptible.
Watch Out for Dengue Season
Another major concern is the dengue season in Indonesia, which peaks during and after the
rainy season. The increased rainfall leads to more mosquito breeding grounds—especially in
stagnant water.
Dengue fever can be severe and even life-threatening. It’s essential to wear mosquito repellent,
sleep under nets if needed, and avoid areas with known outbreaks.
What to Wear & When to Go Out During Season Changes
● Do: Wear lightweight, breathable clothes that cover your arms and legs.
● Don’t: Ignore weather warnings or venture out during storm alerts.
● Do: Carry a rain jacket, a set of dry clothes, and extra flip-flops for sudden rain.
● Don’t: Walk barefoot outside—wet surfaces are breeding grounds for fungus.
Timing matters too. Limit outdoor activities during mid-afternoon when heat and humidity peak,
especially if you’re prone to heat exhaustion or allergies.
Health Services in Bali You Can Trust
Bali is home to numerous reputable healthcare facilities and emergency units ready to handle
seasonal illnesses. Some top providers include BIMC, Siloam, and Kasih Ibu Hospital.
Whether you’re in Seminyak or Ubud, you’ll find a mix of public and private clinics. Many cater to
expats and tourists, with English-speaking staff and international insurance acceptance.
Why Health Insurance Matters More During Season Changes
It’s during these unpredictable moments that having the right insurance plan truly pays off. API
Pacific offers expat-friendly health insurance coverage in Bali that adapts to your lifestyle.
We’ve been in Bali for over 30 years, so we know what expats need: flexible plans, essential
hospitalisation coverage, and fast support when you need it most.
Explore how we can help: API Pacific Globalis Health Insurance Plans
Final Tips for Staying Healthy
● Stay hydrated: Humid climates make you sweat more—often without noticing. Drink
plenty of water, coconut water, or juices to stay hydrated and flush out toxins.
● Boost your immune system: Consider adding probiotics (from yogurt, tempeh, or
supplements) to your diet. Zinc and vitamin D are also great immune allies, especially if
you’re indoors more due to rain.
● Keep Mosquito Protection Handy: For dengue season in Indonesia, insect repellent
and covered clothing aren’t just smart—they’re necessary.
● Wash Hands Frequently: Tropical heat and damp environments can spread germs fast.
Keep a hand sanitizer with you and wash hands often—especially before eating or after
being outdoors.
● Check forecasts and stay indoors during extreme weather
● Register with a local clinic and know your nearest emergency facility
Need more advice? Visit our blog on Health Tips.