Welwyn Garden City weather in September (Hertfordshire, United Kingdom)

Is September a good time to explore Welwyn Garden City weather-wise? See what weather conditions to anticipate this month with our guide.

Temperatures

Expect perfect weather in Welwyn Garden City during September, which means pleasant temperatures and moderate rainfall. As the day progresses, temperatures can peak at 20°C. Luckily at nightfall, they typically drop to 11°C.

Precipitation

Welwyn Garden City in September usually receives moderate rainfall, averaging around 55 mm for the month. You can typically expect 12 days days of rain this month, based on climate records.

Average sunshine

Expect a moderate amount of sunlight, with approximately 155 hours. This means a pleasant mix of sun and clouds.

So this is a great month to visit if you prefer dry days with pleasant temperatures. June, July, August and September typically offer the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Welwyn Garden City climate page with graphs.

 

Welwyn Garden City, monthly averages in September

Min Temperature 11°C  

Max Temperature 20°C  

Chance of Rain 40%  

Precipitation 55 mm  

Rainy days 12 days  

Humidity 73% *  

Sunshine 155 hours *  

Percentage Sunshine 40% *  

* Data from: London, the United Kingdom (39 KM, 24 Miles).

Where to go in the United Kingdom in September

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Welwyn Garden City, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

8/10

Outdoor sports

10/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Welwyn Garden City.

Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.