Izumisano

Planning your adventures in Izumisano? Check out the latest weather data, including detailed forecasts and visual charts, right here in this section.

The climate in Izumisano can be described as temperate, with four distinct seasons. The city enjoys warm, and sometimes hot, humid summers and cool, relatively dry winters. This creates a variety of conditions for visiting throughout the year, allowing you to choose the most comfortable time for your trip based on your preferences.

The summer months, especially July and August, are the warmest, with average temperatures reaching 26-28°C; this is also the period with the highest rainfall and the most rainy days. Winter, by contrast, brings cooler weather, with average temperatures around 5-7°C in January and February, and significantly less precipitation. Spring and autumn offer pleasant transitional periods with moderate temperatures and variable weather, perfect for walking and exploring the surroundings.

Overall, the weather in Izumisano follows a classic seasonal cycle. A notable feature is the increase in precipitation and rainy days during the summer months, which is typical for many regions of Japan. When planning your trip, it is worth considering these seasonal fluctuations to ensure your journey is as comfortable as possible.

Izumisano experiences a noticeable annual temperature range typical of a temperate climate. The hottest month is usually August, with an average temperature of 28.2°C and daytime highs reaching up to 31.4°C. The coldest month is January, with an average temperature of 5.2°C and nighttime lows dropping to an average of 2.0°C. Thus, the annual range of average temperatures is over 20 degrees, ensuring a clear change of seasons.

Summer months in Izumisano, especially July and August, are characterized by hot weather. Average daytime temperatures consistently stay above 25°C (the average maximum in June is 25.7°C, in July – 29.6°C, in August – 31.4°C), and nights remain warm, with temperatures rarely falling below 19°C in June and 23-25°C in July–August. Winter, by contrast, brings a chill. From December to February, average temperatures range from 5.2°C to 7.1°C. Daytime highs during this period usually do not exceed 8.5-10.4°C, while nighttime lows can drop to 2-4°C, creating a crisp feel but generally without severe frost.

Temperature differences between day and night in Izumisano are noticeable throughout the year, averaging 6-8°C. This is especially felt in the transitional seasons—spring (March–May) and autumn (September–November). For example, in March, the average maximum reaches 14.1°C and the minimum is 5.9°C. Similar fluctuations are observed in autumn; for example, in November, the maximum temperature is around 16.6°C and the minimum is 9.1°C. Summer nights, though warm, still bring some relief from the daytime heat, with a temperature difference of about 6°C, while winter nights can be quite cold compared to daytime figures.

Izumisano has a fairly clear distribution of precipitation throughout the year, with a pronounced wet period and drier months. Overall, precipitation occurs year-round, but its intensity and frequency change significantly depending on the season.

The wettest period in Izumisano is summer, especially June and July. These months see the highest amount of precipitation, reaching an average of 8 mm, and the number of rainy days is also at its peak: in July, for example, it rains for an average of 17 days, and in June, 15 days. March, August, and September can also be considered months with higher humidity: precipitation ranges from 4 to 6 mm, and the number of rainy days fluctuates between 13 and 14. This summer period can be described as a rainy season, when precipitation can be more intense and frequent.

On the other hand, late autumn and winter, from November to February, are the driest months in Izumisano. During this period, the average monthly precipitation decreases significantly to just 2 mm. The number of rainy days is also minimal: for example, in November, there are only about 7, and in January, February, and December, about 9 days. Precipitation in these months is generally less heavy and shorter in duration compared to the summer period. Based on the average temperatures, snow is not typical for Izumisano, so precipitation mostly falls as rain.

When planning a trip to Izumisano, it's important to choose the right wardrobe to feel comfortable in any weather. Given the distinct change of seasons, layering will be your best friend. In summer, especially in June, July, and August, when average temperatures reach 22-28°C and rainfall is at its peak (up to 8 mm and 15-17 rainy days), you will need light, breathable fabrics. Don't forget an umbrella or a light raincoat, as well as sunscreen and a hat to protect yourself from the sun on clear days. Comfortable walking shoes are a must, as you'll surely want to explore the city.

Spring (March–May) and autumn (September–November) in Izumisano delight with moderate temperatures (from 10°C to 25°C), but the weather can be changeable. During these seasons, it's worth bringing clothes that are easy to combine: T-shirts, long-sleeved shirts, a light sweater or fleece, and a windbreaker or mid-season jacket. An umbrella will also come in handy, as the number of rainy days is still significant (7-14 days per month). In winter (December–February), it gets cool, with average temperatures dropping to 5-7°C and nighttime temperatures potentially nearing 2°C. During this period, you will need warm clothes: sweaters, a warm jacket, a hat, a scarf, and gloves. Although there is less precipitation in winter (about 2 mm), waterproof shoes and warm socks will make your walks more comfortable.

Regardless of the time of year, comfortable shoes are the key to an enjoyable trip, as you will be doing a lot of walking. An electronics adapter, if needed for your devices, is also worth packing. And, of course, don't forget your camera to capture all the beauty of Izumisano!