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Heat health alert issued for the South West

The yellow heat health alert is in effect from 10AM on 11/07/2025 until 9AM on 10/07/2025 across the South West. The yellow alert has a matrix score of 9. This means:

There is potential for significant impacts across health and social care services from high temperatures, including:

a rise in deaths, particularly among those aged 65 and over or with health conditions. There may also be impacts on younger age groups
a likely increase in demand for health services
internal temperatures in care settings (hospitals and care homes) may exceed the recommended threshold for clinical risk assessment
the heat affecting the ability of the workforce to deliver services
indoor environments overheating increasing the risk to vulnerable people living independently in community and care settings

You can see all the weather health alerts currently in place across England on the UKHSA data dashboard.

How to take action if you have a duty to respond

Please review the Weather Health Alert System user guidance to explain how you can use the information contained within the alerts to respond to the forecast weather.

We provide guidance on how to take action for a range of professional groups with a duty to respond, with action cards available for commissioners, health and social care providers, voluntary and community sector, and national government.Summary action cards are also available below:

· commissioners

· voluntary and community sector

· care homes and other residential settings

· services delivering care to people in their homes

· hospitals and other healthcare settings

For an overview of the weather alerts in place across England, please check the UKHSA data dashboard.

The Met Office may issue National Severe Weather Warnings (for example, extreme heat) with short notice, so you can take appropriate action. Check the Met Office Website to see the National Severe Weather Warnings currently in place.

You can also find information of the latest weather forecast on the Met Office website.

How to protect yourself if you are vulnerable

While exposure to hot weather can affect anyone, some people are particularly at risk. We have published guidance on staying safe during hot weather.

Forecast issued by the Met Office on behalf of UKHSA on Friday, 08, August, 2025 at 09:05

Overview of hot weather over the next 5 days

A northwest-southeast split in conditions will start the period, with the southeast fine and warmest. Temperatures should then rise in earnest into the coming new working week, with low-thirties degrees Celsius developing more widely by day, perhaps locally supressed at times by the development of a few thunderstorms. Night-time temperatures will also increase by this time, reaching the high teens quite widely. The peak of the heat is currently thought to be Tuesday.

Overview of hot weather over the next 6 to 15 days

The slightly raised probabilities of exceedence into this period are influenced by the tail end of the forecast heatwave developing during days 1-5, with this displaced eastwards by ingress of weather systems from the Atlantic. For the period as a whole, above average temperatures are most likely, with a higher than normal chance of very warm or hot spells, especially across the southeast.

Overview of hot weather over the next 16 to 30 days

Settled conditions are most likely in this period, especially until the end of August. Some brief unsettled spells possible at times, these perhaps more probable later in the period. Above average temperatures remain most likely throughout, again with a higher than normal chance of very warm or hot spells, especially across the southeast.

Extreme Weather Alerts