Weather in Ibaraki

Be prepared for any whims of nature in the city of Ibaraki. In this section, you will find the freshest weather data, detailed forecasts, and clear charts for comfortably planning your journey.

The climate in Ibaraki can be characterized as temperate and humid, with four distinct seasons, which is typical for this part of Honshu island. The weather here is quite mild, without extreme freezing temperatures in winter, but with hot and humid summers. This makes the region accessible for visits all year round, although your choice of clothing and plans will depend heavily on the month of your trip.

Winter in the prefecture is cool and dry: in January and February, the temperature holds at an average of about 4–6°C, and rainfall occurs extremely rarely. Summer, on the contrary, brings heat and high humidity. The hottest month is August, when daytime temperatures often exceed 30°C. Travellers should pay attention to June and July — this is the period with the highest number of rainy days (up to 19 days per month), which is associated with seasonal monsoons.

Spring and autumn are considered the most comfortable transitional seasons. In spring, the air gradually warms from 9°C in March to a pleasant 18°C in May, creating ideal conditions for admiring the blossoming nature. In autumn, the heat subsides, and by October, a comfortable temperature of around 17–18°C settles in, which is excellent for long walks and exploring local attractions.

The temperature regime in Ibaraki changes noticeably depending on the season, offering travellers a variety of climatic conditions. The coldest month of the year is January, when the average temperature drops to +4.6°C, and at night the air cools down to +0.8°C. In contrast, August represents the peak of summer heat, when average figures reach +27.1°C, and daytime maximums often exceed the +30°C mark.

Summer here can be characterized as hot and humid. In July and August, the daytime temperature remains stable around +29°C... +30.1°C, creating ideal conditions for those who love warmth, although high humidity can intensify the sensation of heat. Winters in this region of Japan, conversely, are quite mild and cool, without extreme frosts. During the day in December and February, the thermometer often rises to a comfortable +9°C... +10°C, which is quite suitable for excursions if appropriate clothing is worn.

In the transitional seasons, spring and autumn, moderate and pleasant temperatures are observed, however, daily fluctuations should be taken into account. For example, in April or October, the difference between daytime warmth (about +18°C... +20°C) and nighttime coolness can be 4–6 degrees or more. Travellers are advised to dress in layers to easily adapt to weather changes throughout the day, especially during long walks.

When planning a journey to Ibaraki, it is important to consider the seasonal features of the local climate. The distribution of precipitation here is uneven: the year is clearly divided into a drier winter period and a humid summer season. Knowing these nuances, you will be able to pack your luggage correctly and choose the ideal time for excursions around this picturesque region.

Summer and early autumn are the wettest times of the year. Starting from June right through to September, the probability of precipitation increases significantly. The peak of rainy weather falls in July, when about 19 rainy days are recorded. During this period, warm rains occur frequently, and high humidity is characteristic of the traditional Tsuyu season, so a high-quality raincoat or umbrella will become your best companions.

Winter months, especially January and December, are conversely considered the driest. At this time, the frequency of precipitation drops to a minimum — on average only about 7 days with precipitation per month. Although temperatures in winter can drop quite low, clear weather prevails, making this season comfortable for those who wish to avoid prolonged downpours.

A trip to Ibaraki requires a thoughtful approach to your wardrobe, as the climate here has distinct seasonality. In spring and autumn, when the temperature fluctuates between 10°C and 18°C, the principle of layering is the best solution. Take t-shirts, light jumpers, and a windbreaker with you: such a set will allow you to feel comfortable both in the cool morning and during the warm day. Be sure to take care of comfortable, broken-in shoes, as you will have to walk a lot when exploring parks and temples.

Summer in this region of Japan can be hot and humid, with average temperatures around 26–27°C. At this time of year, it is worth preferring loose clothing made of natural breathable fabrics, such as cotton or linen, and do not forget sunscreen, sunglasses, and a head covering. In winter, when the thermometer drops to 4–6°C, a warm jacket, a cosy scarf, and gloves will become your main companions for comfortable walks in the fresh air.

Particular attention should be paid to protection from precipitation, as rain is not uncommon here, especially in June and July, when the number of rainy days can reach 19 per month. A compact folding umbrella or a high-quality raincoat will not take up much space in your luggage but will prove to be indispensable helpers. If your trip falls during the rainy season or early autumn, it makes sense to bring waterproof shoes so that the whims of the weather do not spoil your impressions of the trip.