Cheltenham
United Kingdom
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cheltenham, United Kingdom

September, the first month of the autumn, in Cheltenham, is also an enjoyable month, with average temperature ranging between max 18.3°C (64.9°F) and min 10°C (50°F).

Temperature

In Cheltenham, the average high-temperature is practically the same as in August - a comfortable 18.3°C (64.9°F). In Cheltenham, in September, the average low-temperature is 10°C (50°F).

Rainfall

In September, in Cheltenham, the rain falls for 13 days. Throughout September, 62mm (2.4") of precipitation is accumulated. In Cheltenham, during the entire year, the rain falls for 183 days and collects up to 717mm (28.2") of precipitation.

Daylight

In September, the average length of the day is 12.6h.

Sunshine

The average sunshine in Cheltenham is 4.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Cheltenham?

The average high-temperature, in September, in Cheltenham, United Kingdom, is 18.3°C (64.9°F), while the average low-temperature is 10°C (50°F).

How many days does it rain in September in Cheltenham?

In Cheltenham, United Kingdom, in September, during 13 rainfall days, 62mm (2.4") of precipitation is typically accumulated.

What is the average length of the day in September in Cheltenham?

The average length of the day in September in Cheltenham is 12.6h.

How long on average sun shines in September in Cheltenham?

The average sunshine in September in Cheltenham, United Kingdom, is 4.6h.

How high is the UV index in September in Cheltenham?

In Cheltenham, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in September - Cheltenham, United Kingdom
  • Average high temperature in September: 18.3°C

The warmest month (with the highest average high temperature) is July (21.7°C).
The month with the lowest average high temperature is January (6.7°C).

  • Average low temperature in September: 10°C

The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (1.3°C).

Average rainfall in September - Cheltenham, United Kingdom
  • Average rainfall in September: 62mm

The wettest month (with the highest rainfall) is December (74mm).
The driest month (with the lowest rainfall) is February (50mm).

Average rainfall days in September - Cheltenham, United Kingdom
  • Average rainfall days in September: 13 days

Months with the highest number of rainy days are January and December (18 days).
The month with the lowest number of rainy days is July (12 days).

Average daylight in September / Average sunshine in September - Cheltenham, United Kingdom
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.6h).
The month with shortest days is December (Average daylight: 7.9h).

  • Average sunshine in September: 4.6h

The month with most sunshine is June (Average sunshine: 6.2h).
The month with least sunshine is December (Average sunshine: 1.5h).

Average UV index in September - Cheltenham, United Kingdom
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 0).