Temperate oceanic, mild and humid (more humid in Northern Ireland, in Scotland - more than a cold and dry). Weather is mainly formed by the warm Gulf Stream ocean currents. The coldest month - January (from +3 C to +7 C), the warmest - July (from +11 C to +17 C). The annual precipitation is 600-750 mm., Most of it falling from September to January in the form of rains, fogs are frequent. North-east of the island - the coldest region, while the London region, south-east and Westland - the warmest parts of the country.