The cool northeasterly breeze brought another cool day on Sunday with the thermometer struggling to reach 6.1C, which was 1.9C below average and the first below average maximum since the 10th.
The fog lingered all day, easing just after midday, but thickening again late afternoon.
Overnight the breeze picked up and the temperature began to rise from its minimum of 2.2C, average for December. This resulted in the fog evaporating so that on Monday morning the visibility had improved under low, thick cloud. By 08.00 the temperature had lifted to 4.8C.