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.

---

• London - September »
  The average high-temperature and low-temperature in London during September are 19°C (66.2°F) and 11.3°C (52.3°F) respectively. An average low-temperature of 11.3°C (52.3°F) is observed during September nights in London, United Kingdom.
• Edinburgh - September »
  In Edinburgh, during September, the rain falls for 14.8 days and regularly aggregates up to 32mm (1.26") of precipitation. On the first day of September in Edinburgh, sunrise is at 6:18 am and sunset at 8:06 pm.
• Manchester - September »
  In Manchester during September, the rain falls for 16.2 days and regularly aggregates up to 38mm (1.5") of precipitation. On the first day of September in Manchester, sunrise is at 6:19 am and sunset at 7:58 pm.
• 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 »
  On the first day of September in Glasgow, sunrise is at 6:22 am and sunset at 8:10 pm. On the first day of September in Glasgow, sunrise is at 6:22 am and sunset at 8:10 pm.
• Liverpool - September »
  In Liverpool the average seawater temperature in September is 16.2°C (61.2°F). Liverpool records an average high-temperature of a still enjoyable 16.6°C (61.9°F) in September, closely mirroring the climate of the previous month.
• Bristol - September »
  January, April and September are months with the least rain in Bristol when the rain falls for 9 days and typically aggregates up to 12mm (0.47") of rain. In Bristol, during September, the rain falls for 9 days and regularly aggregates up to 12mm (0.47") of precipitation.
• Oxford - September »
  The months with the least rainfall in Oxford are March and September Rain falls for 11.3 days and accumulates 18mm (0.71") of rain. On the last day of September, in Oxford, sunrise is at 7:05 am and sunset at 6:44 pm BST.
• Cambridge - September »
  On the last day of September, in Cambridge, sunrise is at 6:59 am and sunset at 6:38 pm BST. In Cambridge, in September, it is raining for 11.5 days, with typically 22mm (0.87") of accumulated precipitation.
• Leeds - September »
  On the first day of September in Leeds, sunrise is at 6:15 am and sunset at 7:56 pm. In September, in Leeds, the rain falls for 12.5 days.
• Cardiff - September »
  The months with the warmest seawater in Cardiff are August and September, with an average sea temperature of 16.6°C (61.9°F). In Cardiff the average seawater temperature in September is 16.6°C (61.9°F).
• Belfast - September »
  The month with the warmest seawater in Belfast is September, with an average sea temperature of 14.3°C (57.7°F). In Belfast, United Kingdom, in September, it is raining for 16.4 days, with typically 40mm (1.57") of accumulated precipitation.