Climate Insights for Penticton

The climate in Penticton is cool. The average annual temperature is 7°C and approximately 720mm of precipitation falls per year. March is the wettest month, receiving around 83mm of rainfall. Penticton 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 February, January, December, when temperatures can drop to -7°C. Penticton experiences heavy snowfall, typically from January through December.

Temperatures in Penticton vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 18°C. The coldest month is February, when overnight lows fall to -7°C and the daily average is -4°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 7°C shift in average temperatures.

Penticton is a relatively dry area, receiving approximately 720mm of precipitation annually, which averages out to around 60mm per month. The wettest month is March, averaging 83mm of rainfall. November and October also tend to see above-average precipitation. The driest month is August, with just 12mm. That's 70mm less than March, 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. Penticton receives heavy snowfall, accumulating around 308cm annually from January through December. The snowiest month is January, with approximately 67cm. Winter travel should account for significant snow cover.

Penticton is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently summer in Penticton, which began on June 21, 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 August at around 26°C, while the coldest stretch bottoms out in February near -7°C. Autumn is next, beginning on September 23, 2026 — 93 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 20mm per month. By contrast, February can be quite cold with temperatures dropping to -7°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.