Climate Insights for Oni

The climate in Oni is cool. The average annual temperature is 3°C and approximately 1160mm of precipitation falls per year. Oni receives a notable amount of rainfall throughout the year, including during its driest month. Oni is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -11°C. Oni experiences heavy snowfall, typically from January through December.

Temperatures in Oni vary considerably across the year, with a 30°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 19°C with a mean of 14°C. The coldest month is January, when overnight lows fall to -11°C and the daily average is -8°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Oni is a moderately rainy area, receiving approximately 1160mm of precipitation annually, which averages out to around 97mm per month. The wettest month is June, averaging 132mm of rainfall. May and March also tend to see above-average precipitation. The driest month is August, with just 62mm. That's 71mm less than June, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Oni receives heavy snowfall, accumulating around 421cm annually from January through December. The snowiest month is March, with approximately 71cm. Winter travel should account for significant snow cover.

Oni 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 March, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently spring in Oni, which began on March 20, 2026. Oni 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 August at around 19°C, while the coldest stretch bottoms out in January near -11°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Oni 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.