Weather in Chelmsford in September

Chelmsford, United Kingdom averages a high of 18.6°C (65.5°F) and low of 11.8°C (53.2°F) in September, with 9 rain days and 8.6 hours of daily sunshine. Travel score: 72.5/100 (Good). The best time to visit Chelmsford is August.

High
19°C65°F
Low
12°C53°F
🌧️
9
rain days
☀️
8.6
hrs/day sunshine
💧
78%
humidity
73Good

September in Chelmsford is mild and occasionally wet — good for most activities.

What are the average temperatures in Chelmsford?

JanFebMarAprMayJunJulAugSep19°12°OctNovDec

How much does it rain in Chelmsford in September?

Chelmsford receives an average of 45.5mm of rainfall across 9 rainy days in September. The annual total is 609.8mm.

JanFebMarAprMayJunJulAugSep9dOctNovDec

What should I pack for Chelmsford in September?

Essentials

👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 19°C

Recommended

🧥
Light rain jacket
Some rainy days expected (9 days)
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods

🎉Visiting United Kingdom in September?

Don't miss any public holidays — check before you book!

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Data based on 1994–2024 averages · Last updated: 2024-12-31