Osoyoos (BC) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Osoyoos.
Climate overview of Osoyoos
The climate in Osoyoos, British Columbia, Canada, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in July to 1°C (34°F) in December.
The city tends toward dry conditions, with around 313 mm (12 in) of rain/snowfall per year. It does, however, have two distinct dry seasons, January to May and July to November, with very warm summers and very cold winters.
Osoyoos Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Osoyoos - and find the best time to visit.
Monthly Temperature in Osoyoos
In Osoyoos, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a very cold 1°C (34°F) in the coolest month, December.
Nights vary from 15°C (59°F) in July to around -4°C (25°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Osoyoos
Osoyoos typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 313 mm (12 in). The climate in Osoyoos shows significant variation throughout the year. Expect moderate rainfall in June, the wettest month, with an average of 42 mm (1.7 in) of precipitation over 13 rainy days.
In contrast, the driest month September offers drier and sunnier days, with around 16 mm (0.6 in) of rainfall over 7 rainy days. For more details, please visit our Osoyoos Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Osoyoos
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July and August
- Fewest rainy days: August and September
- Seasonal pattern: Two distinct dry seasons, January to May and July to November, with very warm summers and very cold winters
- Coldest conditions: December, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Osoyoos
What is the best time to visit Osoyoos?
May, June and September typically offer the most optimal weather in Osoyoos. In contrast, January, November and December tend to have less optimal conditions. Osoyoos has two distinct dry seasons, January to May and July to November, with very warm summers and very cold winters.
What temperatures can I expect in Osoyoos?
Daytime highs range from 1°C (34°F) in December to 31°C (88°F) in July. Nighttime lows range from -4°C (25°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Osoyoos get?
Annual rainfall is around 313 mm (12 in). June is the wettest month with 42 mm (1.7 in), while September is the driest with 16 mm (0.6 in).
Osoyoos 3-Day Forecast
Osoyoos on the map
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