Home
Weather Dublin
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
    Home /

    Caution needed - Extreme heat takes hold

19:24
23 June 2026

Caution needed
Extreme heat takes hold

Split temperature maps of the UK for Wednesday 24.06 and Thursday 25.06 showing intensifying heat across Britain, with temperatures rising from 38°C near London on Wednesday to 37°C on Thursday, and a central heat warning symbol highlighting widespread extreme warmth.
Heat builds during the week, possibly hitting 40 °C locally.

Extreme heat will grip the UK this week, with rare heat warnings in force in parts of the country.

Amber extreme heat warnings are in effect from Monday into Tuesday, before a red warning covers parts of central England into Wales. This becomes just the second ever red extreme heat warning following the first in the historic heatwave of July 2022.

Daily highs are expected to exceed 37 °C even in shaded areas, and rising to around 40 °C in places, threatening the all-time UK heat record of 40.3 °C. Increasing humidity will also make conditions more oppressive along with tropical nights for some.

In Ireland, yellow heat warnings are active from Tuesday, after a rather overcast Monday it is turning sunnier and hotter from Tuesday onwards.

Later in the week, Thursday could mark the peak of the heat. However, there is also potential for widespread thunderstorms across the north of England into Scotland.

Temperatures will dip again from Friday, but it will remain warm through the weekend.

London

We
22
34
Th
20
32
Fr
23
34
Sa
22
31
Su
19
26
Mo
16
27
Tu
19
28
We
18
27
Th
18
29
Fr
18
30
Sa
19
30
Su
19
27
Mo
16
24
Tu
16
24
Max (°C)
Min (°C)
moreless

Manchester

We
18
30
Th
19
32
Fr
22
30
Sa
18
27
Su
18
23
Mo
14
22
Tu
15
24
We
16
23
Th
13
22
Fr
14
23
Sa
14
22
Su
14
22
Mo
14
22
Tu
13
21
Max (°C)
Min (°C)
moreless

Dublin

We
16
20
Th
16
25
Fr
19
25
Sa
18
21
Su
15
20
Mo
12
20
Tu
13
21
We
13
21
Th
11
20
Fr
11
19
Sa
12
19
Su
11
20
Mo
12
20
Tu
11
19
Max (°C)
Min (°C)
moreless

Edinburgh

We
15
24
Th
14
20
Fr
15
18
Sa
15
23
Su
16
20
Mo
13
20
Tu
13
21
We
14
21
Th
10
19
Fr
11
19
Sa
13
19
Su
12
20
Mo
12
20
Tu
11
19
Max (°C)
Min (°C)
moreless

Cardiff

We
20
33
Th
23
34
Fr
21
26
Sa
17
26
Su
17
22
Mo
14
22
Tu
16
24
We
16
24
Th
15
23
Fr
15
23
Sa
15
23
Su
15
22
Mo
15
22
Tu
15
21
Max (°C)
Min (°C)
moreless
Weather & Radar editorial team
More on the topic
50 years since historic 1976 heatwave. Three-month hot spell. . . Tuesday 23 June 2026
Black-and-white photograph from the 1976 UK heatwave showing a crowded outdoor swimming area packed with people bathing, wading, and sitting along the water's edge during extreme summer heat.
Tuesday 23 June 2026

Three-month hot spell

50 years since historic 1976 heatwave
The longest day of the year. Summer solstice. . . Sunday 21 June 2026
Split image showing crowds gathered at Stonehenge at dawn beneath a hazy sunrise sky on the left, and a UK and Ireland temperature map on the right with temperatures reaching 30 °C near London and a thermometer icon highlighting hot conditions.
Sunday 21 June 2026

Summer solstice

The longest day of the year
Trapped beneath a blanket of hot air. Heat dome. . . Monday 22 June 2026
Split graphic showing a heat dome illustration over Europe on the left with a high-pressure system trapping hot air, and an extreme temperature map on the right displaying widespread 40–41°C heat across France and Spain with a large thermometer icon.
Monday 22 June 2026

Heat dome

Trapped beneath a blanket of hot air
All weather news
This might also interest you
Rain warnings across southern Ireland. Overnight downpour. . . Thursday 18 June 2026
Satellite weather map of Ireland showing widespread rain bands and extensive precipitation across the west and north, with a heavy rain warning symbol, temperatures around 15 to 16°C, and cloud cover over much of the country.
Thursday 18 June 2026

Overnight downpour

Rain warnings across southern Ireland
Italy still facing severe weather. Damage in the north. . . Thursday 11 June 2026
Storm damage to buildings and a weather map showing severe thunderstorms near Verona in northern Italy on Wednesday.
Thursday 11 June 2026

Damage in the north

Italy still facing severe weather
Glaciers unprepared for coming heatwave. Little snow protection. . . Wednesday 17 June 2026
On the left is a webcam image of the Aletsch Glacier; on the right is the temperature radar, which shows the heat distribution in the Alps.
Wednesday 17 June 2026

Little snow protection

Glaciers unprepared for coming heatwave
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList