Llantwit Major weather in September (Glamorgan, United Kingdom)

What kind of weather does September bring to Llantwit Major? Explore our page to find a thorough overview of this month's weather conditions.

Temperatures

In September, Llantwit Major tends to experience pleasant temperatures and moderate rainfall. September is part of the summer season. The temperature during the day can rise to approximately 18°C. At night, it falls to around 12°C.

Precipitation

Llantwit Major in September usually receives moderate rainfall, averaging around 93 mm for the month. On average, there are about 16 days with rain during this month.

Average sunshine

The area enjoys a balanced 149 hours of sunlight, ensuring it's neither too overcast nor too sunny.

In case you lean more towards enjoying temperate temperatures and rain-free days July typically offers the most optimal weather. In contrast, January, February, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Llantwit Major climate page with graphs.

 

Llantwit Major, monthly averages in September

Min Temperature 12°C  

Max Temperature 18°C  

Water Temperature 15°C *  

Chance of Rain 53%  

Precipitation 93 mm  

Rainy days 16 days  

Humidity 81% *  

Windspeed 14 km/h *  

Sunshine 149 hours *  

Percentage Sunshine 37% *  

Data from: Cardiff, the United Kingdom (9 KM, 5 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 Llantwit Major, 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. With a water temperature of around 15°C there is no need to bring your swimwear.

What To Do

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Llantwit Major.

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.