Weather in Atsugi

Planning to spend time in Atsugi? Discover the most up-to-date weather information, including detailed forecasts and visual charts, to make your stay as comfortable as possible.

The city of Atsugi, located in Japan, is characterised by a temperate climate with four distinct seasons. The weather here undergoes significant changes throughout the year, offering travellers diverse conditions: from a cool and relatively dry winter to a warm and humid summer.

Winters in Atsugi (from December to February) are quite cool, with the average temperature hovering around 4.5-6.8°C, while night-time temperatures can drop close to freezing. There is little precipitation during this period. Spring (March-May) brings gradual warming, with average temperatures rising from 9.5°C in March to 17.7°C in May, and the number of rainy days increases. Summer (June-August) is the warmest and most humid season. Average temperatures during this period range from 21-26°C, with August being the hottest month. The highest number of rainy days falls precisely during the summer months, especially from June to September, indicating a pronounced wet season. Autumn (September-November) is distinguished by a comfortable drop in temperatures after the summer heat, although October can also be quite rainy before the weather becomes drier and cooler in preparation for winter.

The climate in Atsugi is characterised by noticeable seasonal temperature fluctuations. Throughout the year, you can experience both the chill of winter and the warmth of summer. The coldest month is typically January, when the average temperature holds around 4.5°C, and nightly lows can drop to 0.5°C, while daytime highs rarely exceed 8.5°C. Conversely, August brings the hottest weather with an average temperature of 26.4°C, daytime peaks up to 29.1°C, and warm nights where the thermometer does not drop below 23.7°C. Thus, the annual temperature range is quite wide, offering diverse weather conditions for travellers.

The summer months in Atsugi, especially from June to August, are distinguished by consistently warm and hot weather. In June, the average temperature is about 21.0°C, gradually rising to peak values in August. Daytime and night-time temperatures during this period do not have sharp fluctuations: for example, in July, the difference between the average minimum (22.5°C) and maximum (27.9°C) temperature is just over 5 degrees. This creates a sensation of constantly warm, and at times sultry weather, characteristic of the Japanese summer, which is often accompanied by high humidity.

Winter in Atsugi, covering the period from December to February, brings a noticeable chill, but without extreme frosts. Average temperatures range from 4.5°C in January to 6.8°C in December. At night, the temperature can approach freezing, especially in January (averaging 0.5°C), while during the day it usually rises to 8-10°C. During the winter months, a more noticeable difference between day and night temperatures is observed compared to summer. For instance, in January, the difference between the average maximum (8.5°C) and minimum (0.5°C) temperature is about 8 degrees, indicating cooler nights and relatively mild days.

In the city of Atsugi, precipitation occurs year-round, however, its intensity and frequency vary by season. Although there is no clearly defined dry season, the winter months are characterised by the least amount of precipitation, while summer and early autumn see it more often.

The greatest amount of precipitation falls in June and October, when an average of 8 mm is registered. The summer months, especially July, August, and September, are distinguished by the highest frequency of precipitation – up to 18 days with precipitation in each of these months, with volumes ranging from 5 to 7 mm. The lowest figures for both the amount of precipitation (just 2 mm) and the number of days with it (8 days) occur in January and December.

The nature of precipitation in Atsugi depends on the season and temperature. In the warm season, from spring to autumn, it is predominantly rain. In winter, especially in January, when the average minimum temperature drops to 0.5°C, and in December (average minimum temperature 2.9°C), a small amount of precipitation (2 mm) may fall as light snow or sleet. In February, with minimum temperatures around 1.7°C, mixed precipitation is also possible. Overall, even in the wettest months, the total amount of precipitation remains moderate.

When planning a trip to Atsugi, it is important to choose the right wardrobe, taking into account the peculiarities of the local climate. Regardless of the season, you will need comfortable shoes for walking, as the city is conducive to exploration on foot. Considering that the number of rainy days in a month can be significant, especially from March to October (reaching 14-18 days), a compact umbrella or a light raincoat will become your reliable companion. The principle of layering clothing is an excellent solution for Atsugi, as it will allow you to easily adapt to temperature changes throughout the day.

The winter months (December-February) in Atsugi are quite cool, with an average temperature around 4.5-6.8°C, and night frosts are not uncommon when the temperature can drop close to 0°C. During this period, you should bring warm clothes: sweaters, fleece jumpers, an insulated jacket (preferably waterproof and windproof), a hat, gloves, and a scarf. Do not forget warm socks. Spring (March-May) and later autumn (October-November) are characterised by gradual temperature changes: from 9.5°C in March to 17.7°C in May, and from 17°C in October to 12.3°C in November. For these seasons, a mid-season jacket, jumpers, and cardigans that can be taken off or put on as needed will be suitable.

Summer in Atsugi (June-August) and the beginning of autumn (September) are characterised by warm and humid weather. Average temperatures in the summer months range from 21°C to 26.4°C, and in September constitute about 23.1°C. This period is also distinguished by a high probability of precipitation: June and October (although the latter already belongs to cooler autumn) stand out with the highest amount of precipitation (8 mm), while July, August, and September lead in the number of rainy days (up to 18 per month). Therefore, your luggage should include light, breathable clothing made from natural fabrics – T-shirts, shorts, sundresses. Do not forget headwear and sunscreen for protection against the sun on clear days. Despite the warmth, a light windbreaker or cape may be useful in the evening or during rain. Given the frequent precipitation, waterproof shoes or a spare pair will be very handy.