How hot and humid does Orlando get in the summer?
Typical Summer Conditions
From June through September, Orlando sees average high temperatures around 91-93°F, with lows in the mid-70s. The humidity is consistently high, often above 70%, which pushes the heat index (feels-like temperature) to 100-110°F on many afternoons. The combination of heat and humidity can be draining, especially for those not accustomed to it.
Afternoon thunderstorms are a near-daily occurrence, typically between 2 PM and 6 PM, bringing brief heavy rain, lightning, and sometimes gusty winds. These storms can cool things down temporarily but often increase humidity afterward.
- Average high: 91-93°F
- Average low: mid-70s°F
- Heat index: 100-110°F
- Humidity: often 70%+
- Daily afternoon thunderstorms
Coping with the Heat
To stay comfortable, plan outdoor activities for early morning or evening, stay hydrated, and seek air-conditioned spaces during peak heat. Theme parks often have misting stations and indoor attractions. Lightweight, light-colored clothing and sunscreen are essential. Heat exhaustion is a real risk, so take breaks and watch for symptoms like dizziness or nausea.
If you're not used to humidity, it may take a week or two to acclimate. Many residents schedule indoor activities during the hottest part of the day.
Common mistakes
- Underestimating the heat index—it can feel 10-15°F hotter than the actual temperature.
- Forgetting that afternoon thunderstorms are almost daily and can disrupt outdoor plans.
- Not drinking enough water—dehydration can happen quickly in high humidity.
