Hanoi features a warm humid subtropical climate (Köppen Cwa) with plentiful precipitation. The city experiences the typical climate of northern Vietnam, where summers are hot and humid, and winters are, by national standards, relatively cold and dry. Summers, lasting from May to September, are hot and humid, receiving the majority of the annual 1,680 millimeters (66.1 in) of rainfall. The winters, lasting from November to March, are relatively mild, dry (in the first half) or humid (in the second half), while spring (April) can bring light rains. Autumn (October) is the best time of year in term of weather. The city is usually cloudy and foggy in the winter time with average monthly sunshine hours for February are only 1.8 h/day
