I do wonder sometimes who writes the forecasts on the MetO website, as they're incredibly sloppy at times. It may sound pedantic, but the Met Office have precise definitions for temperatures - it's one thing for a random guy on the street to misuse terms, but the Met Office should uphold the standards.
For reference, my nearest official station (Faversham), has a mean high of 7.9 in January and a mean low of 2.3. It will be colder further inland.
Today's SE forecast is typical:
Today:
Cool. Maximum temperature 9 °C.("Cool" should only be used in summer, and it's for temperatures 4 to 5C below average. 9C is above average, so isn't cool - at best, it's normal.)
Tonight:
Cold. Minimum temperature 4 °C.(4C isn't "cold", it's above average. Again, a description of "normal" would be the correct terminology. "Cold" in winter means 4-5C below average.)
Outlook for Tuesday to Thursday:
Temperatures around normal.(The raw forecast highs for Faversham for Tuesday to Thursday are 12, 10, 10. That's not "around normal", that's "very mild" becoming "mild")
Incidentally the definitions are quite hard to track down these days (they used to be on the MetO website 10-15 years ago), but you can find them elsewhere, e.g.
here . I suspect the fact they're hidden away these days means the youngsters joining the service aren't aware of them, which is a shame.
For reference, in winter (which is actually mid-November to mid-March in terms of the original Met Office style guide):
6C or more above: Exceptionally Mild
4-5C above: Very Mild
2-3C above: Mild
1C below to 1C above: Normal
2-3C below: Rather Cold
4-5C below: Cold
6C or more below: Very Cold