Brecon
United Kingdom
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Brecon, United Kingdom

September, the first month of the autumn, in Brecon, is still a mild month, with average temperature fluctuating between 8°C (46.4°F) and 15°C (59°F).

Temperature

In Brecon, the average high-temperature in September marginally drops, from a comfortable 18°C (64.4°F) in August, to a mild 15°C (59°F). In September, in Brecon, the average low-temperature is 8°C (46.4°F).

Rainfall

In September, in Brecon, the rain falls for 17 days. Throughout September, 142mm (5.6") of precipitation is accumulated. In Brecon, during the entire year, the rain falls for 212 days and collects up to 1705mm (67.1") of precipitation.

Daylight

In Brecon, United Kingdom, the average length of the day in September is 12.6h.

Sunshine

The average sunshine in September is 4h.

UV index

The average daily maximum UV index in Brecon is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Brecon?

In September, in Brecon, the average high-temperature is 15°C (59°F), and the average low-temperature is 8°C (46.4°F).

How much does it rain in Brecon in September?

In Brecon, United Kingdom, in September, during 17 rainfall days, 142mm (5.6") of precipitation is typically accumulated.

How many hours of daylight does Brecon have in September?

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

How many hours of sunshine does Brecon have in September?

In Brecon, United Kingdom, the average sunshine in September is 4h.

What is the UV index reading in September in Brecon?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Brecon, United Kingdom
  • Average high temperature in September: 15°C

Warmest months (with the highest average high temperature) are July and August (18°C).
Months with the lowest average high temperature are January and February (5°C).

  • Average low temperature in September: 8°C

Months with the highest average low temperature are July and August (10°C).
Coldest months (with the lowest average low temperature) are January and February (0°C).

Average rainfall in September - Brecon, United Kingdom
  • Average rainfall in September: 142mm

The wettest month (with the highest rainfall) is December (212mm).
The driest month (with the lowest rainfall) is July (90mm).

Average rainfall days in September - Brecon, United Kingdom
  • Average rainfall days in September: 17 days

The month with the highest number of rainy days is January (21 days).
The month with the lowest number of rainy days is July (14 days).

Average daylight in September / Average sunshine in September - Brecon, 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: 4h

The month with most sunshine is June (Average sunshine: 6h).
Months with least sunshine are January and December (Average sunshine: 1).

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

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