Tatebayashi Geography and Climate Profile
Tatebayashi is a city situated in the extreme southeastern region of Gunma Prefecture, nestled within the expansive Kantō Plains. Its strategic location places it at the border of Tochigi Prefecture to the north, creating a geographic crossroads in the region.
The city's landscape is defined by its proximity to major waterways. Tatebayashi is effectively sandwiched between two significant rivers: the Tone River to the north and the Watarase River to the south.
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Surrounding Municipalities
Tatebayashi shares borders with several municipalities across two different prefectures, integrating it into the broader regional network of the Kantō area.
- Within Gunma Prefecture: Chiyoda, Itakura, Meiwa, and Ōra.
- Within Tochigi Prefecture: Ashikaga and Sano.
Climate and Weather Patterns
Tatebayashi experiences a Humid continental climate (classified as Köppen Cfa). This climate type is characterized by distinct seasonal shifts, featuring warm summers and cold winters that often bring heavy snowfall.
On average, the annual temperature in the city is 14.5 °C. The thermal extremes are most evident in August, where average temperatures peak at approximately 26.7 °C, and January, where they drop to an average of 3.3 °C.
Precipitation is a significant feature of the local environment, with an average annual rainfall of 1287 mm. September typically stands as the wettest month of the year.
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Key Facts
- Location: Southeastern Gunma Prefecture, Kantō Plains.
- Water Borders: Tone River (North) and Watarase River (South).
- Climate Type: Humid continental (Köppen Cfa).
- Average Annual Temperature: 14.5 °C.
- Average Annual Rainfall: 1287 mm.
- Wettest Month: September.
Detailed Climate Data
Based on normals from 1991 to 2020 and extremes recorded from 1979 to the present, the following table provides a comprehensive look at Tatebayashi's meteorological trends.
| Metric | Coldest Month (Jan) | Warmest Month (Aug) | Wettest Month (Sep) | Annual Average/Total |
|---|---|---|---|---|
| Mean Daily Maximum Temp (°C) | 9.6 | 32.7 | 28.3 | 20.8 |
| Daily Mean Temp (°C) | 4.0 | 27.3 | 23.4 | 15.4 |
| Mean Daily Minimum Temp (°C) | -0.7 | 23.5 | 19.8 | 11.0 |
| Average Precipitation (mm) | 37.2 | 143.9 | 167.9 | 1,202.6 |
Frequently Asked Questions
Where exactly is Tatebayashi located?
Tatebayashi is located in the extreme southeastern part of Gunma Prefecture in the Kantō Plains, bordering Tochigi Prefecture to the north.
Which rivers border the city?
The city is bordered by the Tone River to the north and the Watarase River to the south.
What is the climate like in Tatebayashi?
It has a Humid continental climate, which means it experiences warm summers and cold winters with heavy snowfall.
When is the rainiest time of the year?
September is the wettest month in Tatebayashi, contributing to the annual average rainfall of 1287 mm.
What are the typical temperature extremes?
The average temperatures are highest in August (around 26.7 °C) and lowest in January (around 3.3 °C), though record highs have reached 40.3 °C and record lows have dropped to -8.8 °C.