Could high humidity cause mold growth?« Back to Previous Page

After the rain last month, I noticed a strange dampness seeping into my bedroom walls, especially near the corner where the window meets the floor. The air feels heavier and more muggy than usual, even though the AC is running at full blast. My kids have been complaining of itchy throats, and now I’m worried about mold or mildew starting to grow. Could this be a sign of high humidity in my home?
Posted by Bhavna Yadav
Asked on January 3, 2026 11:39 am
Could high humidity cause mold growth?

Absolutely. High levels of humidity can indeed lead to the proliferation of mold and mildew within your home environment, particularly under conditions such as those you have described. In Dubai/UAE, during the winter months or after heavy rainfall, the relative humidity inside buildings can often rise significantly. This is because the air's capacity to hold moisture increases as temperatures drop, leading to a higher risk of condensation on cooler surfaces like walls and windows.

In your situation where there has been rain followed by noticeable dampness in your bedroom, especially near corners where windows meet floors, it suggests that moisture may be seeping through the walls or condensing due to the change in temperature. This creates an ideal environment for mold growth. Mold spores are omnipresent but require moisture and suitable temperatures (typically between 4°C and 37°C) to germinate and grow.

The presence of mold can have adverse health effects, especially on children who may experience itchy throats or other respiratory issues. According to UAE regulations, indoor air quality should be monitored regularly, particularly in regions with significant climatic changes like Dubai where the weather can fluctuate rapidly between seasons.

Given your concerns, a professional inspection is recommended. Saniservice, for instance, provides comprehensive mold testing and remediation services. Their hotline number 800-MOLDS (800-66537) or email hello@saniservice.com could be useful resources to contact for an assessment.

To proactively manage humidity levels in your home:
1. Utilize dehumidifiers, especially during periods of high rainfall.
2. Ensure proper ventilation through exhaust fans and opening windows when possible.
3. Use air conditioning units equipped with moisture control features.
4. Regularly inspect and maintain the exterior of your property to prevent water infiltration.

By taking these steps, you can mitigate potential mold growth and ensure a healthier indoor environment for yourself and your family in Dubai/UAE.
Posted by Sani Admin
Answered on January 4, 2026 1:37 pm