Shimojishima

Stay informed about the weather conditions in Shimojishima before starting your journey. We have gathered the most up-to-date data and forecasts here to help you plan your day with maximum comfort.

The climate of Shimojishima can be described as warm subtropical, making the island an attractive travel destination almost any time of year. Harsh winters are non-existent here: even in the "coldest" months of January and February, the average air temperature stays at a comfortable 19–20°C. This destination is perfect for travelers who prefer mild weather without extreme temperature fluctuations.

Summers on the island are hot and humid, with temperatures averaging 28–29°C in July and August. A notable feature of the local weather is the relatively high frequency of rainfall throughout the year. According to statistics, rainy days occur regularly—from 14 to 19 days per month—so travelers are advised to always keep an umbrella or raincoat handy, even if the sun is shining in the morning.

Overall, the weather in this part of the country (Japan) is remarkably stable. There is no sharp division between dry and wet seasons typical of some tropical regions; instead, you can expect a steady, warm climate with frequent intermittent clouds. This weather is ideal for those who don't handle intense heat well but love the warmth of the seaside.

The climate on the island of Shimojishima is remarkably stable and mild, making it a year-round resort. The concept of a harsh winter is virtually non-existent here: even in the coldest months of the year, January and February, the average air temperature does not drop below a comfortable 19–20°C. This temperature range allows you to enjoy outdoor activities without needing to bundle up in warm clothes, as winter here feels more like a warm spring.

The summer period brings true tropical warmth without extreme heat. The peak heat occurs in July and August, when temperatures consistently hover around 28–29°C. September continues the summer trend with figures around 28°C, and only by October does the air begin to gradually cool to 26°C. This time is perfect for those who love the sun and a warm sea.

A distinctive feature of the weather in Shimojishima is the surprisingly small daily temperature range. The difference between day and night temperatures is minimal—often only about 1–2 degrees. This means that evenings and nights are almost as warm as the days, providing maximum comfort for walks at any time of the day or night.

Precipitation on Shimojishima is distributed quite uniquely throughout the year: while the total volume of moisture is relatively low, rainy days occur frequently. Thanks to the warm climate, there is no snow, and precipitation falls exclusively as rain. Even during the "driest" months, travelers may encounter brief showers, as the number of rainy days varies from 14 to 19 per month.

The wettest month is August, which sees the maximum amount of rainfall (around 9 mm) and the highest number of rainy days (up to 19). The summer season and early autumn (June, September) are also characterized by a higher probability of rain. During this period, showers can be quite refreshing against the backdrop of high temperatures.

A relatively dry period occurs in late winter and mid-spring. The minimum rainfall is recorded in February (just 3 mm), while March and April have the lowest frequency of rain—about 14 days per month. Nevertheless, no matter what time of year you visit the island, it's worth bringing a light raincoat or umbrella, as the weather here is changeable.

Given the warm subtropical climate of Shimojishima, your wardrobe should primarily consist of light, breathable clothing. During the summer months, when temperatures rise to 29°C, opt for garments made from natural fabrics like cotton and linen to stay comfortable in the heat. As this is a sunny island resort, be sure to pack swimwear, a wide-brimmed hat, sunglasses, and high-SPF sunscreen to protect yourself from strong UV rays.

Even in the "coldest" months (January and February), temperatures rarely drop below 18°C, so you definitely won't need heavy winter coats or down jackets. However, a light windbreaker, hoodie, or cardigan will be very useful for cool evenings, breezy weather by the sea, or air-conditioned rooms. Pay special attention to rain protection: statistics show a high number of rainy days throughout the year (often more than 15 days per month), making a compact umbrella or a quality raincoat an essential item in your suitcase.

For exploring the island's scenic spots, comfortable, broken-in walking shoes or sneakers—preferably water-repellent—are your best bet. Don't forget a pair of sandals or flip-flops for the beach. We recommend following the layering principle with your clothing to easily adapt to weather changes, adding or removing layers depending on the wind and sudden showers.