Weather in Mexico in September

September in Mexico typically features warm temperatures, increased rainfall, and high humidity. Travellers can expect a blend of sunny and rainy days with a notable tropical vibe. Despite the rain, the conditions are generally suitable for exploration, with the landscape appearing lush. Seasonal highlights may include vibrant foliage and unique local festivals.

September Climate Overview

• Average Temperature: 20°C to 28°C
• Rainfall: Heavy, especially in the southern regions
• Sunshine Hours: Around 6 hours per day
• Sea Temperature: 27°C (only for coastal areas)
• Humidity: High, often exceeding 80%
• Wind Speed: Moderate breezes

What to Expect in September

Daytime Conditions

During the day, temperatures can reach a warm 28°C, with high humidity adding to the tropical feel. Despite ample sunshine, scattered clouds and rainfall are common, with sunblock and hydration being crucial for comfort.

Rainfall Patterns

September is known for its significant rainfall, often occurring as intense afternoon showers, particularly in southern regions. While these are generally short-lived, they can disrupt outdoor plans temporarily. Travellers should keep flexible schedules and pack rain gear.

Evening Conditions

Evenings bring cooler, more comfortable temperatures, often dropping to around 20°C. The humidity remains, though breezes along coastal areas can offer some relief. These conditions are pleasant for enjoying evening walks or exploring markets.

Best Activities in Mexico in September

• Outdoor Activities: Hiking and sightseeing can be rewarding with lush landscapes and cooler evenings. Markets offer vibrant opportunities to engage with local culture.
• Seasonal Highlights: September sees numerous local festivals celebrating Mexican independence and autumn harvests, providing cultural insights.
• Water-based or Nature-based Activities: River and lake activities are enjoyable when weather permits, though caution is advised during rain.

What to Pack for September

• Appropriate clothing for daytime and evening temperatures
• Protection from sun or rain (hat, sunscreen, umbrella, etc.)
• Footwear suitable for local terrain (e.g., walking, hiking, city streets)
• Reusable water bottle