Izu

Discover the latest weather conditions in Izu. Below you will find current data, forecasts, and detailed weather charts to help you plan your day.

The climate in Izu, Japan, is generally temperate, featuring four distinct seasons. The city offers diverse weather conditions throughout the year, ranging from cool and relatively dry winters to warm and more humid (in terms of rainfall frequency) summers. Spring and autumn are pleasant transitional seasons with comfortable temperatures.

Winters (December-February) in Izu are mild, with average temperatures around 7-9°C and minimal precipitation (2-4 mm). Spring (March-May) brings gradual warming: average air temperatures rise from 10.5°C in March to 17.6°C in May, while the number of rainy days slightly increases. Summer (June-August) is the warmest season, with average temperatures reaching 24-26°C. A characteristic feature of the summer months, as well as September, is the highest number of rainy days (averaging 18-19 days per month), although the total rainfall remains moderate (7-11 mm), indicating frequent but generally light showers. In autumn (October-November), temperatures comfortably drop to 14-18°C, and the number of rainy days also decreases compared to summer, creating favorable conditions for visiting the city.

In Izu, there is a noticeable change of seasons with clear temperature fluctuations throughout the year. The hottest month is usually August, when the average temperature reaches 26.1°C, and daily maximums can rise to 28.0°C. In contrast, the coldest period is January, with an average temperature of 6.9°C and minimum night temperatures around 4.7°C. Thus, the annual temperature cycle shows a transition from a cool winter to a hot summer, covering a range from approximately 5°C to 28°C.

Summer months in Izu, especially July and August, are characterized by warm and hot weather. Average temperatures during this period consistently exceed 20°C: around 20.8°C in June, rising to 24.7°C in July, and peaking at 26.1°C in August. Daytime highs in the height of summer can reach 26.5-28.0°C, while nights remain very warm, with minimum temperatures around 22.8-24.2°C. Winter, by contrast, brings cool but mild weather. From December to February, average temperatures range from 6.9°C (January) to 9.0°C (December). Minimum night temperatures in the coldest month, January, drop to an average of 4.7°C, while daytime highs stay around 9.1°C, indicating an absence of severe frosts.

Spring and autumn in Izu are transitional seasons with comfortable temperatures. In spring, from March to May, there is a gradual warming: the average temperature rises from 10.5°C in March to 17.6°C in May. In autumn, from September to November, a smooth cooling occurs: while the average temperature in September is still quite high at 23.6°C, it drops to 14.1°C by November. Daily temperature fluctuations in Izu are generally moderate. The difference between the average monthly maximum and minimum temperatures usually ranges from 2-4 degrees in the summer months (e.g., 26.5°C max and 22.8°C min in July) to 4-5 degrees in the winter and shoulder seasons (e.g., 9.1°C max and 4.7°C min in January). This indicates an absence of sharp temperature swings between day and night.

The city of Izu experiences noticeable fluctuations in precipitation throughout the year. The driest months are January and December, with only about 2 mm of rainfall and approximately 8 rainy days each. A wetter period occurs from late spring to early autumn, showing a distinct seasonality in precipitation.

Peak rainfall by volume occurs in June, with an average of 11 mm. However, August leads in the number of rainy days, with about 19 days of precipitation, though the total volume for this month is 7 mm. Generally, during the summer months (June, July, August) and early autumn (September, October), rain occurs quite frequently, averaging 16 to 19 days per month. This suggests frequent but, judging by the total volume, not overly intense rainfall during this period.

The winter months, December and January, are characterized by the lowest rainfall and the fewest rainy days. Spring (March, April, May) and late autumn (November) are transitional periods. In March, the number of rainy days increases to 15 with a total volume of about 7 mm, while November sees a decline to 13 rainy days and 4 mm of rainfall, marking the gradual transition between the dry and wet seasons.

When planning a trip to Izu, it is important to consider the variable weather throughout the year to ensure your stay is as comfortable as possible. A key tip is to wear comfortable walking shoes, as the city and its surroundings are perfect for exploring on foot. Layering your clothes will also be your best friend, allowing you to easily adapt to temperature changes during the day, especially during the transitional seasons.

In winter (December to February), Izu is quite cool, with average temperatures ranging from 4°C to 11°C. Bring warm items such as sweaters, fleeces, a warm jacket, a hat, a scarf, and gloves. Although precipitation is low, around 2-4 mm, rainy days do occur (8-10 days per month), so a compact umbrella or a light waterproof jacket will be useful. Summer (June to August) is the warmest and most humid period. Temperatures stay in the 18-28°C range. You will need light, breathable clothing made from natural fabrics. Since rainfall increases to 7-11 mm per month and the number of rainy days reaches 18-19, a sturdy umbrella or raincoat will be indispensable. Don't forget sunscreen and a hat for protection on clear days.

Spring (March-May) and autumn (September-November) in Izu are characterized by pleasant but changeable weather. In spring, temperatures gradually rise from 8-13°C to 15-20°C, and in autumn, they drop from 21-25°C to 12-16°C. During these seasons, layering is particularly relevant: T-shirts, long-sleeved shirts, light sweaters or cardigans, and a windbreaker or mid-season jacket. Rainfall in spring and autumn is about 4-8 mm per month, with 13 to 18 rainy days, so an umbrella remains an important accessory. Regardless of the season, don't forget an electronics adapter if needed for your devices.