Climate Overview
The climate in Ostrovnoy is cool. The average annual temperature is 2°C and approximately 761mm of precipitation falls per year. Ostrovnoy receives a notable amount of rainfall throughout the year, including during its driest month. Ostrovnoy is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are January, February, March, when temperatures can drop to -7°C. Ostrovnoy experiences heavy snowfall, typically from January through December.
Temperature
Ostrovnoy sees moderate temperature variation throughout the year, ranging from -7°C to 12°C. July is the warmest month, though highs remain moderate at 12°C with a mean of 10°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -5°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between June and July, with a 4°C shift in average temperatures.
Precipitation
Ostrovnoy is a relatively dry area, receiving approximately 761mm of precipitation annually, which averages out to around 63mm per month. The wettest month is August, averaging 91mm of rainfall. October and September also tend to see above-average precipitation. The driest month is April, with just 47mm. That's 44mm less than August, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Ostrovnoy receives heavy snowfall, accumulating around 333cm annually from January through December. The snowiest month is January, with approximately 59cm. Winter travel should account for significant snow cover.
Wind
Ostrovnoy is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9km/h in winter, 7km/h in spring, 6km/h in summer, 7km/h in autumn.
Seasons
82 days until Autumn
It is currently summer in Ostrovnoy, which began on June 21, 2026. Ostrovnoy is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 12°C, while the coldest stretch bottoms out in January near -7°C. Autumn is next, beginning on September 23, 2026 — 82 days from now.
Spring
Temperatures range from -5 to 4°C. Precipitation is moderate at around 157mm for the season, averaging 52mm per month. Winds are generally light, averaging 7km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 4 to 12°C. Precipitation is moderate at around 210mm for the season, averaging 70mm per month. Winds are generally light, averaging 6km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -1 to 9°C. Precipitation is moderate at around 221mm for the season, averaging 74mm per month. Expect around 57cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -7 to -1°C. Precipitation is moderate at around 173mm for the season, averaging 58mm per month. Expect around 158cm of snow accumulation during this period. Winds are generally light, averaging 9km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Ostrovnoy based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.