Climate Overview
The climate in Otta is cold. The average annual temperature is 1°C and approximately 772mm of precipitation falls per year. Otta receives a notable amount of rainfall throughout the year, including during its driest month. Otta is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, June, August. The coldest months are January, December, February, when temperatures can drop to -13°C. Otta experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Otta vary considerably across the year, with a 29°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 16°C with a mean of 12°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -10°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.
Precipitation
Otta is a relatively dry area, receiving approximately 772mm of precipitation annually, which averages out to around 64mm per month. The wettest month is July, averaging 112mm of rainfall. August and September also tend to see above-average precipitation. The driest month is February, with just 34mm. That's 77mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Otta receives heavy snowfall, accumulating around 215cm annually from January through December. The snowiest month is January, with approximately 37cm. Winter travel should account for significant snow cover.
Wind
Otta is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Otta, which began on March 20, 2026. Otta 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 16°C, while the coldest stretch bottoms out in January near -13°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from -9 to 10°C. Rainfall is relatively light, with around 132mm over the season and a monthly average of 44mm. Winds are generally light, averaging 11km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 6 to 16°C. Rainfall is heavy, totalling around 305mm across the season with a monthly average of 102mm. Winds are generally light, averaging 11km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -8 to 11°C. Precipitation is moderate at around 206mm for the season, averaging 69mm per month. Expect around 53cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -13 to -5°C. Rainfall is relatively light, with around 130mm over the season and a monthly average of 43mm. Expect around 98cm of snow accumulation during this period. Winds are generally light, averaging 10km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Monthly Climate Data
The table below shows monthly climate averages for Otta 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.
