Kootenay National Park Weather by Month — Temperature & Rainfall Guide

Kootenay National Park is a region in Canada. Many people wonder what the weather conditions are in Kootenay National Park over the year. What is the best time to visit Kootenay National Park?

This page shows the average weather conditions by month in Kootenay National Park over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

January is a winter month. The average maximum daytime temperatures are very low and range from -10°C (14°F) in Castle Junction to -5°C (23°F) in Radium Hot Springs. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Kootenay National Park in January here.

February is a winter month. The average maximum daytime temperatures are very low and range from -7°C (19°F) in Castle Junction to -3°C (27°F) in Radium Hot Springs. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Kootenay National Park in February here.

The average maximum daytime temperatures are very low and range from -3°C (27°F) in Castle Junction to 2°C (36°F) in Radium Hot Springs. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Kootenay National Park in March here.

The average maximum daytime temperatures are low and range from 2°C (36°F) in Castle Junction to 6°C (43°F) in Radium Hot Springs.

Find more detailed climate information for Kootenay National Park in April here.

The temperatures range from low in Castle Junction with 8°C (46°F) to moderate in Radium Hot Springs with 12°C (54°F).

Find more detailed climate information for Kootenay National Park in May here.

June is a summer month. The temperatures range from low in Castle Junction with 12°C (54°F) to moderate in Radium Hot Springs with 17°C (63°F).

Find more detailed climate information for Kootenay National Park in June here.

July is a summer month. The temperatures range from moderate in Castle Junction with 17°C (63°F) to pleasant in Radium Hot Springs with 22°C (72°F). On average, this month is the warmest month of the year in Kootenay National Park.

Find more detailed climate information for Kootenay National Park in July here.

August is a summer month. The temperatures range from moderate in Castle Junction with 17°C (63°F) to pleasant in Radium Hot Springs with 21°C (70°F).

Find more detailed climate information for Kootenay National Park in August here.

The temperatures range from low in Castle Junction with 12°C (54°F) to moderate in Radium Hot Springs with 16°C (61°F).

Find more detailed climate information for Kootenay National Park in September here.

The average maximum daytime temperatures are low and range from 3°C (37°F) in Castle Junction to 7°C (45°F) in Radium Hot Springs.

Find more detailed climate information for Kootenay National Park in October here.

The average maximum daytime temperatures are very low and range from -6°C (21°F) in Castle Junction to -1°C (30°F) in Radium Hot Springs. It is a very cold month in some areas, so be prepared and make sure to dress up warm.

Find more detailed climate information for Kootenay National Park in November here.

December is a winter month. The average maximum daytime temperatures are very low and range from -11°C (12°F) in Castle Junction to -7°C (19°F) in Radium Hot Springs. On average, this month is one of the coldest months of the year in Kootenay National Park. So be prepared and make sure to dress up warm.

Find more detailed climate information for Kootenay National Park in December here.