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Llandeilo Climate by Month

Llandeilo experiences great temperature shifts. The city's weather can transition from pleasant days to cold weather. It also has a notably wet climate with much precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

The climate in Llandeilo is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures range from a pleasant 20°C in July, the warmest time of the year, to a chilly 8°C during cooler months like February. At night, temperatures typically average around 3°C during these months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Llandeilo has a notably wet climate with abundant precipitation, recording 1354 mm of rain/snowfall per year. Year-round, Llandeilo has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 142 mm, and the driest month, April, with 90 mm, is minimal.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Seasonal changes in sunshine hours are quite dramatic in Llandeilo. While July receives considerable daily sunshine with up to 6.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.6 hours of sunlight per day.

Monthly hours of sunshine

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

Daily hours of sunshine

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

The best time of year to visit Llandeilo in the United Kingdom

Other facts from our historical weather data:
  • Which is the warmest month in Llandeilo?
    July has an average maximum temperature of 20°C and is the warmest month of the year.
  • Which is the coldest month in Llandeilo?
    The coldest month is February with an average maximum temperature of 8°C.
  • Which is the wettest month in Llandeilo?
    December tops the wettest month list with 142 mm of rainfall.
  • Which is the driest month in Llandeilo?
    April is the driest month with 90 mm of precipitation.
  • Which is the sunniest month in Llandeilo?
    July is the sunniest month with an average of 202 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Llandeilo

    Wed   Dec 11
    6°C | 2°C
    E 18 km/h
    overcast and no rain

    overcast and no rain

    Thu   Dec 12
    7°C | 2°C
    NE 11 km/h
    broken clouds and no rain

    broken clouds and no rain

    Fri   Dec 13
    8°C | 5°C
    NE 4 km/h
    5.1 mm
    overcast and rain

    overcast and rain