Bangor
United Kingdom
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Bangor, United Kingdom

September, the first month of the autumn, in Bangor, is also an enjoyable month, with average temperature varying between 16°C (60.8°F) and 10°C (50°F).

Temperature

In Bangor, the average high-temperature in September is relatively the same as in August - a still enjoyable 16°C (60.8°F). In Bangor, in September, the average low-temperature is 10°C (50°F).

Rainfall

In Bangor, United Kingdom, in September, it is raining for 17 days, with typically 121mm (4.8") of accumulated precipitation. Throughout the year, in Bangor, there are 211 rainfall days, and 1360mm (53.5") of precipitation is accumulated.

Daylight

In September, the average length of the day in Bangor, United Kingdom, is 12.7h.

Sunshine

The average sunshine is 4h.

UV index

In Bangor, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from the 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 Bangor?

The average high-temperature, in September, in Bangor, United Kingdom, is 16°C (60.8°F), while the average low-temperature is 10°C (50°F).

How much does it rain in Bangor in September?

In September, in Bangor, the rain falls for 17 days. Throughout September, 121mm (4.8") of precipitation is accumulated.

How many hours of daylight does Bangor have in September?

The average length of the day in September in Bangor, United Kingdom, is 12.7h.

How many hours of sunshine does Bangor have in September?

In September, the average sunshine is 4h.

What is the UV index intensity in September in Bangor?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in September - Bangor, United Kingdom
  • Average high temperature in September: 16°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 (7°C).

  • Average low temperature in September: 10°C

Months with the highest average low temperature are July and August (11°C).
Coldest months (with the lowest average low temperature) are January and February (2°C).

Average rainfall in September - Bangor, United Kingdom
  • Average rainfall in September: 121mm

The wettest month (with the highest rainfall) is November (161mm).
Driest months (with the lowest rainfall) are April and May (79mm).

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

Months with the highest number of rainy days are January, November and December (21 days).
The month with the lowest number of rainy days is July (14 days).

Average daylight in September / Average sunshine in September - Bangor, United Kingdom
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 16.9h).
The month with shortest days is December (Average daylight: 7.6h).

  • Average sunshine in September: 4h

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

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

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