Weather in Okushiri

Stay up to date with the meteorological situation in Okushiri. In this section, you will find fresh data on temperature, precipitation, and a detailed forecast for the near future.

The climate in the city of Okushiri can be described as temperate with a strong maritime influence. Thanks to its island location, there is no extreme heat here, and the temperature regime is characterised by its smoothness, although the overall weather picture is quite humid and cool compared to the southern regions of the country.

A distinct change of seasons is observed throughout the year. Summer here is mild and comfortable: in the warmest months, July and August, the thermometer hovers around +20...+22°C, making this period ideal for a visit. Winters, however, are quite severe and prolonged, with temperatures dropping slightly below freezing and high humidity.

A characteristic feature of the weather in Okushiri is the large number of days with precipitation during the winter period. From December to February, the weather is often overcast and snowy, and the number of "wet" days can reach 25–26 per month. Conversely, spring and early summer bring more stable and clear weather, when the amount of precipitation noticeably decreases.

A characteristic feature of the temperature regime in the city of Okushiri is its remarkable stability throughout the day. The difference between day and night readings here is minimal and often amounts to just 2–3 degrees regardless of the season. This means that tourists will not have to suffer from a sharp drop in temperature after sunset, making a stay on the island predictable and comfortable.

The coldest time of the year is traditionally January and February, when the average temperature drops slightly below freezing, reaching marks around -1°C. At this time, moderately frosty weather prevails, but extreme cold is a great rarity: even nightly minimums on average do not fall below -3°C.

The summer season in this corner of Japan can be described as very mild and pleasant, without any exhausting heat. The warmest month is August, when the air warms up to an average of +22.5°C, and daytime maximums reach +24°C. July and September also delight with warmth, keeping thermometer readings in the range of +20°C, which creates ideal conditions for viewing the natural beauty.

Precipitation on the island of Okushiri is distributed unevenly throughout the year, with a noticeable emphasis on the winter season. The wettest and cloudiest period falls on December and January, when 25 to 26 days with precipitation are recorded. Since the average temperature in these months drops below freezing, the region is often covered by snowfall, creating picturesque winter landscapes typical of the northern part of Japan.

Spring brings relative calm and clearer skies. April is statistically considered the driest month of the year: the number of wet days is reduced to a minimum (about 11). This time may be most favourable for those who prefer stable weather for walks and excursions.

In summer, the rains return, but they generally tend to be moderate in nature. The peak of summer precipitation often falls in August, when approximately 14 days of the month can be rainy. In autumn, humidity begins to rise again: already in November, the number of days with precipitation increases sharply to 21, signalling the imminent arrival of a snowy winter.

Travelling to Okushiri requires careful attention to packing your luggage, as the climate here is distinguished by high humidity and frequent precipitation all year round. In winter and early spring, when the temperature fluctuates around zero or drops below freezing, warm thermal underwear, a windproof winter jacket, and waterproof shoes with thick soles are vital necessities. Given the large number of "wet" days in December and January, a hat, scarf, and gloves will become mandatory accessories for protection against the piercing wind.

Summer on the island is quite mild and pleasant, without sweltering heat, so t-shirts and light trousers are suitable for daytime walks. However, even in July and August, the evenings can be cool, so it is worth taking a fleece jacket or a windbreaker with you. In the off-season, it is best to adhere to the principle of layering: a combination of light clothing with a warm sweater and a jacket will allow you to feel comfortable during any change in weather.

Regardless of the date of your trip, a reliable umbrella or a high-quality raincoat must be in your suitcase, as rain is a frequent phenomenon here. For long walks through the picturesque terrain, choose comfortable, broken-in shoes, preferably with water-repellent treatment. Also, do not forget sunscreen and sunglasses: the sea breeze can create a false sense of coolness, but the sun remains active even during variable cloudiness.