Last updated: August 27, 2025
In Llanfair Caereinion, United Kingdom, the average temperature in September hovers around 13°C (56°F). Expect a wide temperature range, with minimums dipping to 1°C (34°F) and maximums soaring up to 27°C (80°F). Precipitation during this month totals 74 mm (2.9 in) over approximately 13 days, contributing to an average humidity of 85%. Perfect for cozy days in or a light rain jacket for your outdoor adventures!
In September in Llanfair Caereinion, the average temperature is 13°C (56°F), with maximums reaching 27°C (80°F) and minimums dipping as low as 1°C (34°F). Be prepared for a wide range of temperatures when traveling to Llanfair Caereinion during this time.
In Llanfair Caereinion in September, the precipitation amount is 74 mm (2.9 in) over the course of 13 days.
In Llanfair Caereinion in September humidity is 85%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that wraps around you, making outdoor activities feel heavier and less enjoyable, as layers of clothing cling to the skin and breath becomes visible in the moist air.
In Llanfair Caereinion in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Llanfair Caereinion.
UV Risk Categories
Weather in Llanfair Caereinion varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Llanfair Caereinion, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 66 mm (2.6 inches) | 89% | low |
| February Weather | 5°C (41°F) | 90 mm (3.5 inches) | 88% | low |
| March Weather | 6°C (43°F) | 91 mm (3.6 inches) | 86% | moderate |
| April Weather | 8°C (46°F) | 54 mm (2.1 inches) | 84% | moderate |
| May Weather | 11°C (52°F) | 69 mm (2.7 inches) | 79% | high |
| June Weather | 14°C (58°F) | 85 mm (3.3 inches) | 81% | very high |
| July Weather | 16°C (61°F) | 65 mm (2.6 inches) | 78% | very high |
| August Weather | 15°C (60°F) | 82 mm (3.2 inches) | 79% | high |
| September Weather | 13°C (56°F) | 74 mm (2.9 inches) | 85% | moderate |
| October Weather | 10°C (51°F) | 96 mm (3.8 inches) | 90% | moderate |
| November Weather | 7°C (45°F) | 79 mm (3.1 inches) | 91% | low |
| December Weather | 6°C (42°F) | 105 mm (4.1 inches) | 89% | low |