Weather in Hemel Hempstead in September
Hemel Hempstead, United Kingdom averages a high of 18°C (64.4°F) and low of 10.9°C (51.6°F) in September, with 9 rain days and 8 hours of daily sunshine. Travel score: 70/100 (Good). The best time to visit Hemel Hempstead is July.
High
18°C64°F
Low
11°C52°F
🌧️
9
rain days
☀️
8
hrs/day sunshine
💧
79%
humidity
70— Good
September in Hemel Hempstead is mild and occasionally wet — good for most activities.
What are the average temperatures in Hemel Hempstead?
How much does it rain in Hemel Hempstead in September?
Hemel Hempstead receives an average of 51.4mm of rainfall across 9 rainy days in September. The annual total is 668.7mm.
What should I pack for Hemel Hempstead in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 18°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
Traveling to United Kingdom in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31