Sumida

Planning your day in Sumida? Check out the latest weather data and forecasts right in this section. This information will help you make the most of your time in the city.

The climate in Sumida, Japan, can be described as temperate, with four distinct seasons. Travelers can expect a variety of weather throughout the year, ranging from cool winters to quite hot and humid summers. Spring and autumn offer pleasant transition periods with comfortable temperatures, perfect for walking and exploring the city.

Winters (December–February) in Sumida are fairly cool, with average temperatures around 4.9–7.1°C, while nighttime lows can drop close to freezing. In contrast, summer (June–August) is warm and sometimes hot, with average temperatures reaching 28°C in August. During the summer months and into early autumn (June–October), there is an increase in rainy days, which can be accompanied by high humidity, although overall precipitation remains relatively low throughout the year.

Sumida experiences a noticeable annual temperature cycle that reflects the changing seasons. The coldest month is typically January, with an average temperature of about 4.9°C and nighttime lows that can drop to 0.7°C. In contrast, the peak of the heat occurs in August, with an average temperature of 28.0°C and daytime highs reaching 31.0°C. Thus, the annual temperature range is quite wide, offering a variety of climatic conditions for visitors throughout the year.

The winter months in Sumida (December–February) are characterized by cool weather. Average daily temperatures range from 4.9°C in January to 7.1°C in December. At night, the thermometer regularly drops to near-zero levels, especially in January (average low 0.7°C) and February (1.9°C), creating a true winter feel, although severe frosts are untypical. Daytime highs during this period usually stay within 9–11°C. The difference between day and night temperatures is more pronounced in winter, reaching an average of 8–8.5°C, which is worth considering when planning evening walks.

Summer in Sumida (June–August) is warm and occasionally hot. June brings an average temperature of 22.5°C, which gradually rises to 28.0°C in August, the hottest month. Daytime highs in July and August often approach 30°C (29.7°C and 31.0°C respectively) and sometimes exceed this mark. Nights also remain warm, with minimum temperatures around 19.4°C in June and reaching up to 25.0°C in August. Given the significant number of rainy days in the summer months (13–15 days per month), high humidity can be expected, which may increase the perceived heat. Temperature fluctuations between day and night are less pronounced in summer compared to winter, at around 6°C.

Sumida does not have a sharply defined monsoon season; however, the amount and frequency of rainfall vary significantly throughout the year. Overall, the city receives a moderate amount of precipitation, but there is a trend toward an increasing number of rainy days from late spring to mid-autumn.

The wettest period is generally from June to October. The maximum amount of rainfall typically occurs in October, with an average of about 7 mm. This month, along with July, also sees the highest number of rainy days—approximately 15 days. Rain is also quite frequent in the summer months (June, July, August) and in September (13–14 rainy days), but the total amount of precipitation usually stays between 4–6 mm. This suggests that during this period, rainfall is frequent but not particularly intense.

The driest months in Sumida are December and January. December sees the least amount of precipitation all year—only about 1 mm—and the number of rainy days drops to 6. A similar pattern is observed in January, with about 2 mm of precipitation and also 6 rainy days. In winter, precipitation usually takes the form of light rain or drizzle. Given that minimum temperatures in January (0.7°C) and February (1.9°C) approach zero, sleet is possible during these months, although data does not indicate heavy or regular snowfall.

When planning a trip to Sumida, it's important to consider seasonal weather changes to ensure your wardrobe is both comfortable and practical. Generally, layering will be your best friend, as it allows you to easily adapt to temperature fluctuations throughout the day. Don't forget comfortable shoes for walking, as exploring the city on foot is a true pleasure.

In winter (December–February), Sumida is quite cool, especially in the mornings and evenings when temperatures can approach zero. Pack a warm jacket or coat, sweaters, a hat, a scarf, and gloves. Precipitation is minimal during this time, but light wind protection is still useful. In spring (March–May) and autumn (September–November), the weather is milder and more pleasant, but the number of rainy days increases. You'll need a light or medium-weight jacket, jumpers, and, of course, an umbrella or raincoat. Summer (June–August) in Sumida is hot and humid, with frequent, though not always heavy, rain. Pack light, breathable clothing made of natural fabrics, sunscreen, a hat, and definitely an umbrella. Regardless of the season, due to the changeable weather and the likelihood of rain—especially from May to October—a compact umbrella or a light raincoat will be indispensable companions.