Merthyr Tydfil weather in September (Glamorgan, United Kingdom)

What kind of temperatures can you expect in Merthyr Tydfil during September? Check out this detailed guide to the month’s weather conditions.

Temperatures

During September, Merthyr Tydfil usually has moderate temperatures and moderate rainfall. During the daylight hours, temperatures often reach 18°C. After dark they usually decrease to around 10°C.

Precipitation

Merthyr Tydfil in September usually receives moderate rainfall, averaging around 89 mm for the month. According to historical climate patterns, there are usually around 17 days days of rain.

Average sunshine

The area experiences a moderate amount of sunshine, with approximately 149 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

Should you favor a climate that's both dry and comfortably warm July typically offers the most agreeable circumstances. On the other hand, January, February, March, November and December tend to be characterized by conditions that may not be as optimal.

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

 

Merthyr Tydfil, monthly averages in September

Min Temperature 10°C  

Max Temperature 18°C  

Chance of Rain 55%  

Precipitation 89 mm  

Rainy days 17 days  

Humidity 81% *  

Sunshine 149 hours *  

Percentage Sunshine 37% *  

Data from: Cardiff, the United Kingdom (38 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 Merthyr Tydfil, 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

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Merthyr Tydfil.

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.