Llannon Weather in September

Llannon in September averages 18°C (64°F) during the day and 11°C (52°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Llannon in September

Looking at the last 30 years, the data shows about 16 days with rain, averaging 104 mm (4.1 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Llannon in September

September in Llannon brings typical temperatures with highs around 18°C (64°F) and lows of 11°C (52°F). The summer season is characteristic of September. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Llannon in September

You can expect a moderate amount of sunlight, with approximately 149 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Llannon.