Climate Insights for Penticton

The climate in Penticton is cool. The average annual temperature is 6°C and approximately 675mm of precipitation falls per year. November is the wettest month, receiving around 91mm of rainfall. Penticton is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are February, December, January, when temperatures can drop to -6°C. Penticton experiences heavy snowfall, typically from January through December.

Temperatures in Penticton vary considerably across the year, with a 32°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 18°C. The coldest month is February, when overnight lows fall to -6°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Penticton is a relatively dry area, receiving approximately 675mm of precipitation annually, which averages out to around 56mm per month. The wettest month is November, averaging 91mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 22mm. That's 69mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Penticton receives heavy snowfall, accumulating around 228cm annually from January through December. The snowiest month is December, with approximately 55cm. Winter travel should account for significant snow cover.

Penticton is relatively calm, with an average annual wind speed of 10km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 12km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, 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.

It is currently spring in Penticton, which began on March 20, 2026. Penticton 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 26°C, while the coldest stretch bottoms out in February near -6°C. Summer is next, beginning on June 21, 2026 — 88 days from now.

The best time to visit Penticton is during July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 23mm per month. By contrast, February can be quite cold with temperatures dropping to -6°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Penticton 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.