Weather in Banff National Park, Canada in September

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Visiting Banff National Park, Canada in September

September is one of the best months to visit Banff National Park for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in September is significantly cooler than the previous month and temperatures continue to drop markedly into October. September has average maximum temperatures of 13°C (55°F) which is too cold for sunbathing. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

September has total rainfall of 8.9cm (3.5inches) making it often dry with only light showers. There are 16 days with some rainfall so you can still enjoy the beach on the clear days.

Sea temperatures are a cold 14°C (57°F). September is too cold for swimming in Banff National Park for any length of time, unless you have a wetsuit. The sea temperature in September is slightly warmer than the previous month.

Also consider visiting Banff National Park in one of the other best months of June, July, August, for the best beach weather. Also consider one of our other suggestions for September.

Can you sunbathe in Banff National Park in September?

No, September is not a good time for sunbathing in Banff National Park.

September has average maximum temperatures of 13°C (55°F) which is too cold for sunbathing. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. September has total rainfall of 8.9cm (3.5inches) making it often dry with only light showers. There are 16 days with some rainfall so you can still enjoy the beach on the clear days.

More about September temperature and sunshine.

Can you swim in Banff National Park in September?

No, September is too cold for swimming in Banff National Park for any length of time, with the sea water at 14°C (57°F), unless you have a wetsuit.

More about September sea temperatures.

Is September a good time to holiday in Banff National Park?

No, September is not a good time for a holiday in Banff National Park.

September has average maximum temperatures of 13°C (55°F) which is too cold for sunbathing. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day. September has total rainfall of 8.9cm (3.5inches) making it often dry with only light showers. There are 16 days with some rainfall so you can still enjoy the beach on the clear days. Sea temperatures are a cold 14°C (57°F). September is too cold for swimming in Banff National Park for any length of time, unless you have a wetsuit.

More about the September temperatures and sunshine.

Is Banff National Park warm in September?

No, Banff National Park is too cold for sunbathing in September.

The average maximum temperature in Banff National Park in September is 13°C (55°F). The average maximum temperature is 19°C (67°) in the previous month and 4°C (40°F) in the next month.

The average temperature in Banff National Park in September is 7°C (45°F). The average temperature is 12°C (53°F) in the previous month and 1°C (33°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Banff National Park in September?

The average day light hours per day in Banff National Park in September are 12.7. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

More about September sunshine.

Temperature in Banff National Park in September

The weather in September is significantly cooler than the previous month and temperatures continue to drop markedly into October. The average maximum temperature in Banff National Park in September is 13°C (55°F). The average maximum temperature is 19°C (67°F) in the previous month and 4°C (40°F) in the next month.

The average temperature in Banff National Park in September is 7°C (45°F). The average temperature is 12°C (53°F) in the previous month and 1°C (33°F) in the next month.

The average minimum temperature in Banff National Park in September is 2°C (35°F). The minimum temperature is 4°C (40°F) in the previous month and -3°C (26°F) in the next month.

Sunshine in Banff National Park in September

The days in September are shorter than the previous month and days continue to get shorter into October. September shows a significant drop in hours of sunshine than the previous month and hours of sunshine continue to drop quickly into October. During September the average day light hours are 12.7 per day in Banff National Park. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 6.2 hours of sunshine per day.

The ultraviolet index in Banff National Park in September is typically 5.8 during September. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Banff National Park in September

The average sea water temperature in Banff National Park in September is 14°C (57.2°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea. The sea temperature in September is slightly warmer than the previous month.

Rainfall in Banff National Park in September

September weather is slightly wetter than the previous month. September has a few more days of rain than the previous month. The average total rainfall in Banff National Park in September is 8.9cm (3.5inches) and on average there are 16 rainy days in September making it a wet time to visit the beach.

Humidity in Banff National Park in September

The maximum dew point (an indicator of humidity) in Banff National Park in September is 6°C (42°F) which is a bit dry for some. The dew point is 8°C (47°F) in the previous month and 0°C (0°F) in the next month.

The average maximum relative humidity in Banff National Park in September is typically 94%. The maximum relative humidity is 93.3% in the previous month and 94.6% in the next month.

The average relative humidity in Banff National Park in September is typically 78.7%. The average relative humidity is 71.7% in the previous month and 83.9% in the next month.

Wind Speed in Banff National Park in September

The average maximum wind speed in Banff National Park in September is typically 25KM/H (16MPH). The average maximum wind speed is 25KM/H (15MPH) in the previous month and 27KM/H (17MPH) in the next month.

The average wind speed in Banff National Park in September is typically 12KM/H (7MPH). The average wind speed is 10KM/H (6MPH) in the previous month and 15KM/H (9MPH) in the next month.

The average wind direction in Banff National Park in September is from the West-Southwest.

Monthly Averages

Suggested Beaches in September

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Need Inspiration?

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