Tateyama

Planning your day in Tateyama? Check out the latest weather data, detailed forecasts, and visual charts right here.

The city of Tateyama, located in Japan, is characterized by a moderate climate with four distinct seasons. The weather here shows significant temperature fluctuations throughout the year, offering diverse conditions for visitors depending on the timing of their trip.

Winters in Tateyama (from December to February) are quite cool, with average temperatures hovering around 0.9°C - 3.4°C and frequent precipitation. Spring (from March to May) brings gradual warming, with temperatures ranging from 6°C to nearly 16°C. Summers (from June to August) are warm, with average temperatures from 19.5°C to 25°C, with July and August being the warmest months. Autumn (from September to November) is marked by a gradual cooling, with temperatures dropping from 21.5°C to 9.8°C.

One of the notable features of Tateyama's climate is the significant number of precipitation days throughout the year. While the monthly rainfall amounts are not extremely high (ranging from 6 to 12 mm), the number of days with precipitation is quite high, especially in January, July, and December (24 days). This suggests that visitors should be prepared for frequent, perhaps light, rain or overcast weather in any season, with some increased precipitation during the summer period, particularly in July.

The climate in Tateyama is marked by significant seasonal temperature variations throughout the year. The annual range of average temperatures spans from a cool 0.9°C in January to a warm 25.0°C in August. January is traditionally the coldest month, with average minimum temperatures dropping to -1.8°C and maximums rarely exceeding 3.6°C. Conversely, August is the hottest month, with average maximum temperatures reaching 27.9°C and minimum nighttime temperatures around 22.2°C.

Summer months in Tateyama, especially July and August, bring genuine warmth. Daytime temperatures during this period typically fluctuate between 26-28°C. It’s worth noting that July and August also feature a high number of wet days (24 and 21 days, respectively), which can create a feeling of increased humidity despite the moderate overall rainfall. Winter, spanning December, January, and February, is characterized by cool weather. Average daytime temperatures in January and February stay around 3-5°C, while nighttime temperatures can drop below freezing, especially in January (down to -1.8°C). March brings a gradual warming, with average temperatures around 6°C.

The transitional seasons—spring and autumn—show a smooth change in temperatures. In spring, from April to May, the temperature rises noticeably: the average temperature in April is 11.1°C, reaching 15.9°C by May. In autumn, from September to November, there is a gradual cooling: while the average temperature in September is still a comfortable 21.5°C, it drops to 9.8°C by November. The variation between day and night temperatures throughout the year averages between 5°C and 8°C, which is considered moderate. The greatest difference between the maximum and minimum average temperature is observed in April (about 8.1°C), while the smallest is in January, July, August, and September (about 5.4-5.7°C).

Precipitation occurs year-round in Tateyama, but its intensity and frequency vary by season. The highest amount of rainfall traditionally occurs in July, the wettest month, with an average of 12 mm and up to 24 precipitation days. Winter months like January and December also see high frequency—24 wet days each—though the total monthly volume during this period is slightly lower than in peak summer (7 mm in January and 8 mm in December).

In winter, especially in January when the average temperature stays around 0.9°C (with lows reaching -1.8°C), precipitation in Tateyama falls primarily as snow. Snowfalls or mixed precipitation of snow and cold rain are also likely in December and February. In other months, rain is the main type of precipitation. Relatively drier periods include the spring months of April and May, which record the fewest precipitation days (14 days each) and moderate rainfall (6 mm each). February, March, and November also see 6 mm of precipitation.

Summer months, particularly July and August, bring more frequent rain to Tateyama, though not always in large volumes at once. For example, precipitation is recorded on average for 24 days in July and 21 days in August. Rain is also regular in spring and autumn. June and September see 8 mm of precipitation with 17 and 18 precipitation days, respectively. October and November are characterized by 7 mm and 6 mm of precipitation across 16 days each.

When planning a trip to Tateyama, it's important to choose the right wardrobe to feel comfortable in any weather. Given the frequent precipitation throughout the year (from 14 to 24 "wet" days per month), your main companion should be waterproof clothing. Regardless of the season, be sure to bring comfortable walking shoes, as you will likely be doing a lot of exploring. Layering is your best friend in Tateyama, allowing you to easily adapt to temperature changes throughout the day.

During the colder months from December to March, when average temperatures range from 0.9°C to 6.0°C and nighttime temperatures can drop below freezing, you'll need serious insulation. Pack a warm jacket (preferably windproof and waterproof), sweaters or fleece tops, thermal underwear, a hat, gloves, and a scarf. Don't forget warm socks and waterproof footwear, as even a small amount of precipitation at low temperatures can cause discomfort. Transitional months like April, May, October, and November also require attention: days can be pleasant (9.8°C to 15.9°C), but evenings and mornings remain cool, so layering and a windbreaker will come in handy.

Summer months in Tateyama, from June to August, are warm with average temperatures between 19.5°C and 25.0°C. However, even in summer, the number of "wet" days remains high (17-24 days). Therefore, a lightweight waterproof jacket or a high-quality umbrella remains a must. Clothing should be light and breathable. T-shirts, shorts, and light trousers are suitable for daytime walks. Don't forget sunscreen and a hat for clear days. Even in the summer, evening chill or changeable mountain weather may require a light sweater or windbreaker.