Llandeilo weather in September (Dyfed, United Kingdom)

How is the weather in Llandeilo in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.

In September, Llandeilo generally has moderate temperatures and high rainfall. Daytime temperatures hover around 18°C, while nights can cool down to about 10°C.

Llandeilo in September usually receives high rainfall, averaging around 102 mm for the month. Based on our climate data of the past 30 years, about 16 days of rain are anticipated.

The city usually sees around 149 hours of sunlight, indicating a moderately sunny period.

In case you lean more towards enjoying temperate temperatures and rain-free days July and August typically offer 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 Llandeilo climate page with graphs.

 

Llandeilo, monthly averages in September

Min Temperature 10°C  

Max Temperature 18°C  

Chance of Rain 54%  

Precipitation 102 mm  

Rainy days 16 days  

Humidity 81% *  

Sunshine 149 hours *  

Percentage Sunshine 37% *  

* Data from: Cardiff, the United Kingdom (69 KM, 43 Miles).

Where to go in the United Kingdom in September

Find out more about the weather in the United Kingdom in September and which places have the best weather 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 Llandeilo, 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 in September.

Swimming

6/10

Cycling

5/10

Walking

5/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

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

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 climate conditions. Find out where to go with our weather planner.