Weather in Cancun in September

September in Cancun, Mexico is characterised by warm temperatures and high humidity, offering tropical conditions that many travellers find inviting. Despite the occasional rain showers, the weather is generally favourable for outdoor exploration, blending sunshine and warmth with refreshing breezes. However, it’s worth noting the potential for sudden downpours, making the atmosphere feel more tropical and lush.

September Climate Overview

• Average Temperature: 27°C to 32°C
• Rainfall: 181 mm
• Sunshine Hours: 7 hours per day
• Humidity: High, around 80%
• Wind Speed: Moderate, averaging 14 km/h

What to Expect in September

Daytime Conditions

During the day, temperatures range from the mid to high twenties, often reaching up to 32°C. The sun is strong, providing ample daylight, but the high humidity can make it feel warmer. Wearing light, breathable clothing is advisable to stay comfortable in the sunny and sometimes sweltering conditions.

Rainfall Patterns

Rainfall in September is common, with showers typically being brief yet intense. These tropical bursts can come and go quickly, often leaving the air feeling fresher. Travellers should be prepared for sudden rain, which is an integral part of the September experience. Keeping an umbrella or raincoat handy is recommended.

Evening Conditions

Evenings in Cancun bring a slight drop in temperature, providing some relief from the daytime heat. The consistent breezes from the Caribbean Sea help lower the humidity, making nights more pleasant for outdoor activities or leisurely strolls.

Best Activities in Cancun in September

• Outdoor Activities: Exploring the lush, vibrant jungles or joining guided tours of archaeological sites can be rewarding in the moderate sun.
• Seasonal Highlights: September is a period when the tropical flora is in full bloom, adding a rich tapestry of colours to the Cancun experience.
• Water-based or Nature-based Activities: Snorkelling or taking a boat trip can be quite enjoyable, with warm sea temperatures proving inviting.

What to Pack for September

• Light, breathable clothing suitable for warm temperatures during daytime
• Protective gear, including a hat and sunscreen, as well as a portable umbrella for rain
• Comfortable footwear appropriate for walking or light hiking
• Reusable water bottle to keep hydrated in the humidity