UTC Offset
UTC+01:00
Llandeilo, United Kingdom Snapshot 2026
Where is Llandeilo?
Llandeilo, United Kingdom
- Continent
- Europe
- Country
- United Kingdom
- City
- Llandeilo
- Population
- 1.8K
- Coordinates
- 51.88°, -3.99°
Llandeilo is a city in United Kingdom with a population of approximately 1.8K. Average temperatures range from 3°C (37°F) in January to 20°C (67°F) in July. The best time to visit is May, June, July, August, September.
Time in Llandeilo right now
Open full time & time zone page 23:07 07
Monday, June 15, 2026
IANA time zone
Europe/London
Daylight saving
DST in effect
GMT / BST
Next DST change
October 25
backward -1h
Live weather in Llandeilo
Daylight in Llandeilo today
View full sunrise & sunset page Sunrise
Sunset
Day length
16h 41m
Climate normals for Llandeilo
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Good June best
Good July best
Good August best
Good September best
Fair October
Poor November
Poor December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 3°C | 4°C / -1°C | 15days (120 mm) Wet | 3.8h Poor | 90% Very Muggy | 1 Low | Poor | View Details |
| February | 8°C / 3°C | 5°C / -1°C | 15days (122 mm) Wet | 5.1h Fair | 86% Very Muggy | 1.4 Low | Poor | View Details |
| March | 10°C / 4°C | 6°C / 0°C | 16days (115 mm) Wet | 7h Good | 84% Humid | 3.1 Moderate | Poor | View Details |
| April | 13°C / 5°C | 10°C / 2°C | 13days (77 mm) Wet | 9.4h Good | 78% Humid | 4.4 Moderate | Fair | View Details |
| May best | 16°C / 8°C | 15°C / 6°C | 13days (89 mm) Wet | 11h Excellent | 79% Humid | 5.4 High | Good | View Details |
| June best | 19°C / 11°C | 18°C / 10°C | 16days (97 mm) Wet | 10.9h Excellent | 80% Humid | 6 High | Good | View Details |
| July best | 20°C / 13°C | 19°C / 12°C | 15days (94 mm) Wet | 10.7h Excellent | 81% Humid | 5.3 High | Good | View Details |
| August best | 19°C / 13°C | 19°C / 12°C | 16days (103 mm) Wet | 9.8h Good | 83% Humid | 5 Moderate | Good | View Details |
| September best | 17°C / 11°C | 16°C / 10°C | 15days (131 mm) Wet | 7.4h Good | 86% Very Muggy | 3.5 Moderate | Fair | View Details |
| October | 14°C / 9°C | 12°C / 7°C | 17days (137 mm) Wet | 5.9h Fair | 88% Very Muggy | 2.3 Moderate | Poor | View Details |
| November | 10°C / 6°C | 8°C / 3°C | 16days (128 mm) Wet | 4.2h Fair | 90% Very Muggy | 1.2 Low | Poor | View Details |
| December | 9°C / 4°C | 5°C / 1°C | 18days (154 mm) Wet | 3h Poor | 92% Very Muggy | 0.8 Low | Wet | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 7°C / 3°C . Feb: 8°C / 3°C . Mar: 10°C / 4°C . Apr: 13°C / 5°C . May: 16°C / 8°C . Jun: 19°C / 11°C . Jul: 20°C / 13°C . Aug: 19°C / 13°C . Sep: 17°C / 11°C . Oct: 14°C / 9°C . Nov: 10°C / 6°C . Dec: 9°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 120 mm. Feb: 122 mm. Mar: 115 mm. Apr: 77 mm. May: 89 mm. Jun: 97 mm. Jul: 94 mm. Aug: 103 mm. Sep: 131 mm. Oct: 137 mm. Nov: 128 mm. Dec: 154 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 90%. Feb: 86%. Mar: 84%. Apr: 78%. May: 79%. Jun: 80%. Jul: 81%. Aug: 83%. Sep: 86%. Oct: 88%. Nov: 90%. Dec: 92%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 24 km/h . Mar: 22 km/h . Apr: 19 km/h . May: 18 km/h . Jun: 18 km/h . Jul: 18 km/h . Aug: 19 km/h . Sep: 20 km/h . Oct: 21 km/h . Nov: 22 km/h . Dec: 23 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 1. Feb: UV 1. Mar: UV 3. Apr: UV 4. May: UV 5. Jun: UV 6. Jul: UV 5. Aug: UV 5. Sep: UV 4. Oct: UV 2. Nov: UV 1. Dec: UV 1.
Frequently Asked Questions
Llandeilo has a population of approximately 1.8K.
The best months to visit Llandeilo are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Llandeilo receives approximately 1367mm of rainfall annually across 185 rainy days.
Llandeilo is located in United Kingdom, in the Europe region.