Nishi-ku

Stay updated with the latest weather conditions in Nishi-ku, Yokohama. Below, you will find current data, forecasts, and helpful weather charts to help you plan your day.

The climate in Nishi-ku, Yokohama, can be described as temperate, with four distinct seasons. The city experiences significant temperature fluctuations throughout the year, offering diverse weather conditions for visitors planning a trip to Japan.

Winters (December–February) are quite cool, with average temperatures around 5–8°C and relatively low precipitation. Spring (March–May) brings gradual warming, with average temperatures rising from 10°C to nearly 19°C, and the number of rainy days increasing. Summers (June–August) in Nishi-ku are warm and humid, with average temperatures ranging from 22–27°C and the highest amount of rainfall. Autumn (September–November) begins with warm days, gradually transitioning into cooler weather, with temperatures starting at 24°C and dropping to 13°C by November, accompanied by moderate precipitation.

Precipitation occurs throughout the year; however, it is worth noting that the period from March to October is characterized by a higher number of rainy days, peaking in September (17 days). The highest volume of rainfall (8 mm) occurs during the summer months, especially June and July. Conversely, the winter months are the driest in terms of both the amount of precipitation and the number of rainy days. This means visitors should be prepared for the possibility of rain, especially if planning a trip between spring and autumn.

The climate in Nishi-ku, Yokohama, is characterized by significant seasonal temperature changes throughout the year. The hottest month is August, when the average temperature reaches 26.9°C, and daytime highs can climb to 29.4°C. Nights in August are also warm, with an average minimum temperature of 24.5°C. In contrast, the coldest month is January, with an average temperature of 5.5°C. In January, average minimum temperatures drop to 1.8°C, and daytime highs usually do not exceed 9.3°C. Thus, the annual range of average temperatures is quite wide, reflecting the changing seasons.

The summer period in Nishi-ku, spanning June, July, and August, is marked by warm and sometimes hot weather. In June, the average temperature is 21.8°C, gradually rising toward July (25.9°C) and peaking in August. A characteristic feature of the summer months, especially July and August, is the relatively small difference between daytime and nighttime temperatures—nights remain warm, which is typical for a maritime climate during this season. For example, in July, the difference between the average maximum (28.4°C) and minimum (23.5°C) temperature is about 5°C.

The winter months—December, January, and February—bring cool weather. Average temperatures during this period range from 5.5°C in January to 7.7°C in December. Nighttime frosts are not common, but temperatures can drop close to zero, especially in January (average minimum 1.8°C). During the day, the air warms up to an average of 9–11°C. Spring (March–May) and autumn (September–November) are transitional months, with a gradual rise or fall in temperature. During these seasons, the difference between daytime and nighttime temperatures can be more pronounced than in summer; for example, in April it is about 7°C (max 17.8°C, min 10.8°C), and in October about 6°C (max 21.0°C, min 15.2°C).

In Nishi-ku, Yokohama, precipitation levels change noticeably throughout the year, distinguishing between drier and wetter periods. The winter months, especially January and December, are the driest, with an average of only 2 mm of precipitation and 7–8 rainy days. February and November are also characterized by relatively low precipitation (3 mm) and about 10 rainy days. During the winter period, precipitation usually takes the form of light rain or drizzle, as average temperatures typically stay above freezing.

The wettest season in Nishi-ku occurs during the summer and early autumn months. The maximum volume of rainfall falls in June and July (8 mm each), with July also seeing a significant number of rainy days—around 16. However, the month with the highest frequency of precipitation is September, when it rains an average of 17 days, bringing about 6 mm of moisture. During the spring months (March, April, May) and in October, precipitation is moderate, ranging from 4 to 6 mm, while the number of rainy days fluctuates between 13 and 14. Overall, you can expect rain to be more frequent and potentially more intense during the summer and early autumn.

When planning a trip to Nishi-ku, Yokohama, it's important to choose the right wardrobe to stay comfortable in any weather. Year-round, you will need comfortable shoes for long walks around the city. Layering your clothes will be your best friend, as the weather in Japan can be changeable. Don't forget a power adapter if your devices have a different plug type.

Summer months (June–August) in Nishi-ku are warm and humid, with average temperatures around 22–27°C. This period sees a significant amount of rainfall, especially in June and July, which can have up to 15–16 rainy days per month. Therefore, be sure to pack light, breathable clothing made of natural fabrics, sunscreen, a hat, and a reliable umbrella or light raincoat. September and October are also quite warm (18–24°C), but the number of rainy days remains high, so rain protection is still essential.

Winter (December–February) is cool here, with average temperatures ranging from 5°C to 7°C, sometimes dropping to 1–2°C. Although there isn't much precipitation, about 7–10 days a month can be damp. It is recommended to bring warm clothing: sweaters, fleeces, a warm jacket (ideally wind- and waterproof), a hat, gloves, and a scarf. Spring (March–May) and late autumn (November) are transitional seasons with moderate temperatures ranging from 10°C to 18°C. Layered clothing, a light jacket, and an umbrella will also come in handy during these times, as the number of rainy days can reach 10–13 per month.