Climate Overview
The climate in Saunalahti is cold. The average annual temperature is -7°C and approximately 197mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Saunalahti is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: January, February, June. The coldest months are December, November, July, when temperatures can drop to -19°C. Snowfall occurs from January to December, with around 195cm accumulating over the season.
Temperature
Saunalahti sees moderate temperature variation throughout the year, ranging from -19°C to 0°C. January is the warmest month, though highs remain moderate at 0°C with a mean of -1°C. December brings the harshest conditions, with lows dropping to -19°C and an average temperature of -17°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.
Precipitation
Saunalahti is a quite dry location, receiving approximately 197mm of precipitation annually, which averages out to around 16mm per month. The wettest month is October, averaging 33mm of rainfall. November and December also tend to see above-average precipitation. The driest month is March, with just 1mm. That's 32mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Snowfall is a regular feature from January to December, with around 195cm accumulating over the season. October typically sees the most snow at around 33cm.
Wind
Saunalahti is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.
Seasons
18 days until Autumn
It is currently summer in Saunalahti, which began on June 21, 2026. Saunalahti 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 January at around 0°C, while the coldest stretch bottoms out in December near -19°C. Autumn is next, beginning on September 23, 2026 — 18 days from now.
Spring
Temperatures range from -9 to -3°C. Precipitation is minimal, with only around 10mm for the entire season. Winds are generally light, averaging 3km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from -9 to -3°C. Precipitation is minimal, with only around 40mm for the entire season. Winds are generally light, averaging 5km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -13 to -4°C. Rainfall is relatively light, with around 94mm over the season and a monthly average of 31mm. Expect around 94cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from -19 to 0°C. Rainfall is relatively light, with around 53mm over the season and a monthly average of 18mm. Expect around 52cm of snow accumulation during this period. Winds are generally light, averaging 7km/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 Saunalahti 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.
