Transit Desk

Climate

Weather in United Kingdom in September

Weather in United Kingdom, September
In September, United Kingdom sees average highs of 20.2°C (68°F) and lows of 12.1°C (54°F), with around 77 mm of rain.

United Kingdom — September

United Kingdom September
Daytime high
20.2°C (68°F)
Overnight low
12.1°C (54°F)
Rainfall
77 mm
Best-time rank
Off-peak

How September compares

United Kingdom, September vs. the annual average (2025)
This month20.2°C (68°F) / 12.1°C (54°F) · 77 mm
Yearly average15.4°C (60°F) / 7.9°C (46°F) · 62 mm

September in United Kingdom runs 4.8°C (8.6°F) warmer than the yearly average, and is wetter than the yearly average. Pack a warm jacket for cooler conditions.

Common questions

What is the weather like in United Kingdom in September?

Average highs of 20.2°C (68°F) and lows of 12.1°C (54°F), with around 77 mm of rain.

Is September a good time to visit United Kingdom?

It is an off-peak month for comfort in United Kingdom; June, July, August tend to be more pleasant.

Updated climate normals, 2025