September weather forecast
United Kingdom

September marks the transition from summer to autumn in the United Kingdom, characterized by a gradual decrease in temperatures and increased chances of rain. The weather remains pleasant, with lingering warmth, especially in the early part of the month, but notable changes emerge as autumn approaches.

In Scotland, temperatures cool down, ranging from 8°C (46.4°F) to 15°C (59°F). Although there is still sunshine to enjoy, particularly in the Lowlands, increased cloud cover and rain showers become more common. The Highlands start to experience crisper temperatures, ideal for scenic drives and outdoor excursions.

England's weather, particularly in southern regions like London, varies from 11°C (51.8°F) to 18°C (64.4°F). The early part of September can feel like an extension of summer, sometimes referred to as an Indian Summer, but the temperature gradually cools, and rain becomes more frequent as the month progresses.

Wales follows a similar weather pattern, with coastal areas experiencing temperatures from 10°C (50°F) to 17°C (62.6°F). Rain showers become more common, particularly in western and northern regions, but clear and sunny days continue to occur.

Northern Ireland sees temperatures typically between 9°C (48.2°F) to 16°C (60.8°F). Although the weather remains mostly mild, the occurrence of rain and wind increases, particularly in the west.

Daylight hours continue to decrease throughout September, signaling the arrival of shorter days and longer nights. This transition adds a different ambiance to the landscapes and urban areas, enriching the experience of outdoor activities and sightseeing.

Precipitation is more variable, with western and northern parts of the country receiving more rain. However, dry and clear spells still occur, particularly in the eastern regions.

The influence of the Atlantic Ocean diminishes slightly but continues to moderate the temperatures, especially in coastal areas. Winds might pick up along the shores, adding a refreshing touch to late summer days.

September's weather in the United Kingdom offers a blend of summer warmth and autumn coolness. The month provides opportunities for various outdoor activities, from beach outings in early September to hiking and exploring the changing foliage later in the month. Regional variations create diverse experiences, but overall, September's weather invites exploration and appreciation of the United Kingdom's natural beauty and cultural attractions. Whether seeking the lingering warmth of summer or the fresh coolness of approaching autumn, September presents an appealing climate for travelers and residents alike.

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• London - September »
  On the first day of September in London, sunrise is at 6:12 am and sunset at 7:48 pm. On the advent of September, London's average high-temperature exhibits a minor adjustment to a comfortable 19°C (66.2°F) from August's 21.9°C (71.4°F).
• Edinburgh - September »
  In Edinburgh, during September, the rain falls for 14.8 days and regularly aggregates up to 32mm (1.26") of precipitation. In Edinburgh, in September, during 14.8 rainfall days, 32mm (1.26") of precipitation is typically accumulated.
• Manchester - September »
  On the first day of September in Manchester, sunrise is at 6:17 am and sunset at 8:00 pm. The average relative humidity in September in Manchester is 84%.
• Birmingham - September »
  January and September are months with the least rain in Birmingham when the rain falls for 11 days and typically aggregates up to 17mm (0.67") of rain. January and September are months with the least rain in Birmingham when the rain falls for 11 days and typically aggregates up to 17mm (0.67") of rain.
• Glasgow - September »
  In Glasgow, United Kingdom, during September, the rain falls for 20 days and regularly aggregates up to 54mm (2.13") of precipitation. In September, the average relative humidity in Glasgow is 89%.
• Liverpool - September »
  September temperatures in Liverpool vary between a high-temperature of 16.6°C (61.9°F) and a low-temperature of 11.2°C (52.2°F). In Liverpool during September, the rain falls for 15 days and regularly aggregates up to 44mm (1.73") of precipitation.
• Bristol - September »
  On the last day of September, in Bristol sunrise is at 7:09 am and sunset at 6:51 pm BST. May through September, with an average maximum UV index of 4, are months with the highest UV index in Bristol, United Kingdom.
• Oxford - September »
  March and September are months with the least rain in Oxford when the rain falls for 11.3 days and typically aggregates up to 18mm (0.71") of rain. In Oxford during September, the rain falls for 11.3 days and regularly aggregates up to 18mm (0.71") of precipitation.
• Cambridge - September »
  In Cambridge, in September, during 11.5 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Cambridge, during September, the rain falls for 11.5 days and regularly aggregates up to 22mm (0.87") of precipitation.
• Leeds - September »
  In Leeds in September, it is raining for 12.5 days, with typically 27mm (1.06") of accumulated precipitation. On the first day of September in Leeds, sunrise is at 6:14 am and sunset at 7:57 pm.
• Cardiff - September »
  In Cardiff in September, the average water temperature is 16.6°C (61.9°F). May through September, with an average maximum UV index of 4, are months with the highest UV index in Cardiff, United Kingdom.
• Belfast - September »
  With an average sea temperature of 14.3°C (57.7°F), September is the month with the warmest seawater in Belfast, United Kingdom. On the first day of September in Belfast, United Kingdom, sunrise is at 6:30 am and sunset at 8:16 pm.