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

Lowest temperature is just after sunrise

09:00
6 January 2023

Coldest time of the day
Lowest temperature is just after sunrise

setting-sun

Did you know that the coldest time of the day is normally about half an hour after sunrise?

That surprises a lot of people because it seems logical that the coldest time should be in the middle of the night. However, all through the night the ground is losing heat and the air is steadily getting colder.

Then the sun pops over the horizon, but its first rays are very weak. When the sun initially rises, there is still more heat being lost then is being received.

After about half an hour or so, the sun is strong enough to add a little warmth and the temperatures can start to rise.

Of course there are plenty of things which can cause the temperature to change during the day. Warm air can drift in from another area or rain can drag the temperature down.

However, if nothing else is affecting the weather, the coldest time of the day will be just after dawn.

Weather & Radar editorial team
More on the topic
UK and Ireland map shaded in warm tones showing UV levels, with values up to 22 in southern England and lower values in Scotland, plus a circular UV icon.
Tuesday, 7 April 2026

Sunscreen season

UV levels rising with the warmth
A harbour in Crete with a reddish-brown, overcast sky
Friday, 3 April 2026

Blood red skies

Dust storm in Crete
Split UK map showing warm orange temperatures up to 26 degrees on the left transitioning to cooler green tones around 3 to 5 degrees on the right, with an arrow indicating change.
Wednesday, 8 April 2026

A quick shift

High of the year to a cooler spell
All weather news
This might also interest you
Split weather map showing UK wind speeds in orange-red shades up to 40 mph on the left and warning levels in green-yellow on the right, with a central wind warning sign.
Wednesday, 22 October 2025

Warnings active

Storm Benjamin impacts the UK
UK temperature map dated 14.02 showing widespread subzero values in blue shading, with readings such as −4 in Glasgow, −3 in Dublin, and −2 in London, alongside a blue thermometer icon.
Friday, 13 February 2026

Icy conditions

A frozen start to the weekend
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday, 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
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

facebooktwittertikToklinkList