Weather in Negombo in September

Weather in Negombo Lanka in September

Negombo, Sri Lanka in September experiences a tropical climate with warm temperatures, notable rainfall, and high humidity. Travellers can generally expect humid conditions with a mix of sunshine and rain. While outdoor exploration is possible, consideration for sudden weather changes is recommended. The month is ideal for experiencing the lush greenery resulting from the rains.

September Climate Overview

• Average Temperature: 26°C – 30°C
• Rainfall: Approximately 150mm
• Sunshine Hours: 6 hours per day
• Sea Temperature: 27°C
• Humidity: Around 80%
• Wind Speed: Light breezes, averaging 10 km/h

What to Expect in September

Daytime Conditions

Daytime in September is typically warm, with high temperatures reaching up to 30°C. The sun shines brightly for several hours, making sun protection a necessity. Humidity remains high, giving the air a warm, moist quality.

Rainfall Patterns

Rainfall in Negombo during September can be unpredictable, with sudden tropical showers appearing sporadically. It is not uncommon for intense but brief rainfall to occur, often cooling down the temperature temporarily. Travellers should plan indoor activities just in case.

Evening Conditions

The evenings in Negombo cool down to a pleasant range, providing relief from the daytime heat. Light breezes and decreased humidity make it comfortable for dining and peaceful walks.

Best Activities in Negombo Lanka in September

• Outdoor Activities: Explore the Muthurajawela Marsh for its diverse flora and fauna or visit the Negombo Fish Market early in the morning.
• Seasonal Highlights: The continuous rain supports lush, green landscapes perfect for photography and bird watching.
• Water-based or Nature-based Activities: Boat tours in the lagoon can be enjoyable if the weather permits.

What to Pack for September

• Light clothing for warm days, with options for cooler evenings
• Sun protection essentials like a hat and sunscreen and a portable umbrella for rain
• Comfortable footwear suitable for walking or exploring marshlands
• Reusable water bottle to stay hydrated in humid conditions