Kurokawa, Aso, Kumamoto 869-2225   MAP

Current weather and clothing

The weather information shown here is the information closest to the station in question. Please note that there may be slight differences.

Yearly temperature changes and recommended clothing

Clothing recommendations for each temperature range

When traveling in Japan with the following average temperatures, the recommended clothing is as follows:

Monthly changes in temperature, precipitation, and snowfall (1991~2020 average, Japan Meteorological Agency survey)

Since there is no JMA station at Aso Station, we present the weather archive data for Aso Otohime, which is also located in Aso City.

Winter

December

December in Aso marks the beginning of winter. The average temperature drops to 3.8°C and precipitation is 86.9 mm. In addition to warm clothing, waterproof clothing, gloves, hats, and scarves are essential to stay warm and dry. Both men and women should wear warm clothes, winter jackets, and heavy coats with pants or jeans and closed-toe shoes or boots. It is important to dress in layers, especially in the evenings when the temperature drops.

January

January is the coldest month of the year in Aso, with an average temperature of 2°C. It is a dry month of the year, with an average precipitation of 92.7 mm. Visitors should expect cold, crisp air, and occasional snowfall. To stay warm, it is recommended to wear thermal underwear, thick jackets, pants, gloves, hats, and warm boots.

February

February is still cold in Aso, with an average temperature of 3.4°C. However, it is slightly less dry than January, with an average precipitation of 134.8 mm. Visitors should continue to dress warmly with layered clothing, including long sleeve shirts, sweaters, coats, scarfs, hats, and thick boots.

Spring

March

March marks the beginning of the spring season in Aso, with an average temperature of 6.9°C. While the weather is still chilly, visitors can expect milder temperatures than the previous months. The average precipitation in March is 197.2 mm, making it one of the wettest months in Aso. It is recommended to wear waterproof clothing, including jackets, pants, and shoes. Layered clothing is also advisable, including long-sleeved shirts and sweaters.

April

April is a beautiful time to visit Aso, with cherry blossoms in full bloom. The average temperature in April is 11.9°C, making it a comfortable time to travel. The average precipitation is 219.2 mm, and visitors should expect some rainy days. Light jackets and sweaters are recommended during the day, with warmer clothing at night.

May

May is a mild month in Aso, with an average temperature of 16.7°C. It is also a relatively wet month, with an average precipitation of only 261.3 mm. Visitors can expect comfortable weather, with occasional rain showers. It is recommended to wear lightweight clothing, such as t-shirts, shorts, and light jackets. A waterproof jacket is also recommended for the occasional rain showers.

Summer

June

June marks the beginning of the rainy season in Aso, with an average temperature of 20.2°C. Average precipitation in June is 667.9 mm, making it the wettest month of the year in Aso. Expect lots of rain and high humidity. In recent years, global warming has caused torrential rains, so please pay attention to the weather forecast. Light, breathable clothing such as cotton T-shirts and shorts is recommended. Rain gear such as waterproof jackets and pants are required.

July

July, along with August, is one of the hottest months of the year in Aso, with an average temperature of 23.8℃. It is also the wettest month following the previous month, with an average precipitation of 582.6 mm. Expect high temperatures, high humidity, and frequent rainfall. Light, breathable clothing such as cotton T-shirts and shorts are recommended. It is also essential to wear a hat and sunscreen to protect against the strong UV rays.

August

August is similar to July, with hot, humid weather and frequent rainfall. The average temperature in August is 24.2°C, and the average precipitation is 291 mm. Lightweight, breathable clothing is recommended, including t-shirts, shorts, and sundresses. A hat, sunscreen, and insect repellent are also recommended.

Autumn

September

September marks the start of autumn in Aso, with gradually cooling temperatures and less rainfall than the summer months. The average temperature in September is 20.8°C, and the precipitation is around 247.8 mm. While the days are still warm, the evenings can be cooler, so it is recommended to bring light jackets or sweaters. Men and women can opt for long-sleeved shirts, paired with pants or shorts, depending on their comfort level. Light, waterproof jackets or ponchos are recommended as September can see occasional rain.

October

In October, the weather turns autumnal, with the average temperature dropping to about 15.1℃. Average precipitation is about 118.7 mm. As the weather cools down, it is recommended to prepare long-sleeved shirts and blouses, pants, and jeans. A sweater or light jacket will also keep you warm until the evening. Waterproof outerwear is recommended, as there will be rainy days.

November

November in Aso is cool, with an average temperature of 9.2°C and around 109.7 mm of precipitation. The days can be sunny, but the nights are chilly, so it is advisable to pack thicker jackets, sweaters, or hoodies to keep warm. Men and women can opt for long-sleeved shirts or blouses, paired with jeans or pants. Heavy coats or parkas are not necessary, but if you tend to get cold easily, it might be helpful to pack one.