September weather forecast and climate
Bournemouth, United Kingdom

What is the temperature in September in Bournemouth?

In Bournemouth, United Kingdom, in September, the average high-temperature is 19.3°C (66.7°F), and the average low-temperature is 9.4°C (48.9°F).

How much does it rain in Bournemouth in September?

In Bournemouth, during September, the rain falls for 9 days and regularly aggregates up to 65.3mm (2.6") of precipitation.

What month is the sea warmest in Bournemouth?

With an average sea temperature of 17.3°C (63.1°F), September is the month with the warmest seawater. For most, swimming in 17.3°C (63.1°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How cold is the water in September in Bournemouth?

The average seawater temperature, in September, in Bournemouth, United Kingdom, is 17.3°C (63.1°F). For swimming, a surface water temperature of 17.3°C (63.1°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
Average temperature in September - Bournemouth, United Kingdom
  • Average high temperature in September: 19.3°C

The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (8.4°C).

  • Average low temperature in September: 9.4°C

The month with the highest average low temperature is July (11.9°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).

Average rainfall in September - Bournemouth, United Kingdom
  • Average rainfall in September: 65.3mm

The wettest month (with the highest rainfall) is October (100.7mm).
The driest month (with the lowest rainfall) is July (47.8mm).

Average rainfall days in September - Bournemouth, United Kingdom
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is January (12.8 days).
The month with the lowest number of rainy days is August (7.3 days).

Average sea temperature in September - Bournemouth, United Kingdom
  • Average sea temperature in September: 17.3°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).

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

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8.1h).

  • Average sunshine in September: 5.3h

The month with most sunshine is June (Average sunshine: 7.7h).
The month with least sunshine is December (Average sunshine: 1.9h).

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).

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