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Llandeilo Weather and Climate: A Comprehensive Guide

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 maximum day and minimum night temperature

The climate in Llandeilo is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum 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 drop to an average of around 3°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

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. Visit our detailed sunshine hours page for more information.

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).

Forecast for Llandeilo

Sun   Jan 12
8°C | 2°C
S 5 m/s
broken clouds and no rain

broken clouds and no rain

Mon   Jan 13
8°C | 3°C
S 7 m/s
overcast and no rain

overcast and no rain

Tue   Jan 14
10°C | 5°C
SW 5 m/s
overcast and no rain

overcast and no rain

Select a Month of Interest

Check the conditions for any month of the year.

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.