Westminster's climate is marked by moderate temperatures throughout the year, with a gradual warming trend from winter to summer. January and February are the coldest months, with average temperatures ranging from around 4-6°C, while December and November see slightly cooler averages around 7°C. As spring approaches, March and April experience gentle warming, with temperatures rising to an average of 7-11°C. Summer months of June, July, and August bring warmer temperatures, peaking at 18-23°C on average, before slowly cooling down in September and October. Autumn's chill sets in from November onwards, mirroring the winter temperatures of January and February.