Britain has experienced its warmest Halloween on record.

The record of 20C (68F) set at Dartford, in Kent, in 1968 was beaten before noon when the temperature reached 20.5C (68.9F) in Filton, Bristol, the Met Office said.

It posted a tweet saying: "It's officially the warmest Halloween on record with Filton recording 20.5C."

Forecasters say an unseasonably warm 21C (70F) could be recorded today in the South East, eight degrees higher than is normal for this time of year.

So far, 2014 is the warmest year on record, following consistently mild temperatures which have continued into autumn, weather forecaster MeteoGroup said.

But October will not break any records, despite being both warmer and wetter than average.

Nine out of the 10 months this year have seen above-average mean temperatures, with only August below average, the Met Office said.

The UK mean temperature for the month so far is 11C (51.8F), which is 1.5C above average - a few degrees short of the 12.2C (54F) record set in 2001.