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Canada weather

Weather in Banff for May 2026

Your guide to Banff weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Banff during May is quite rare, with fewer than 2 snowy days on average.
    According to Banff snow forecast for May 2026, 5 snowy days are expected at the beginning of May. The first snowfall for May is expected in Wednesday, 6 May.

    • Temperatures

  • The forecast for the first days of May 2026 in Banff predicts a temperature of 10.4 °C, which is slightly above the historical average.

  • In general, the average temperature in Banff at the beginning of May is 12.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15 °C by the end of May.

    • Rain 🌧️

  • Banff experiences moderate rainfall in May, with an average of 10 rainy days and a total precipitation of 439.5 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/-2°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Banff Weather May

Move between months or click on a day
April
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain
11°
2
Patchy rain possible
12°
3
Sunny
16°
4
Sunny
20°
5
Sunny
22°
6
Patchy rain possible
6°
7
Moderate or heavy snow showers
2°
8
Moderate or heavy snow showers
1°
9
Moderate or heavy snow showers
1°
10
Mist
4°
11
Patchy light rain with thunder
9°
12
Patchy rain possible
12°
13
Patchy light rain with thunder
10°
14
Light rain
9°
15
Patchy light rain with thunder
11°
16
Patchy rain possible
11°
17
Patchy light rain with thunder
8°
18
Patchy light rain with thunder
6°
19
Light rain shower
8°
20
Patchy light rain with thunder
6°
21
Light rain shower
8°
22
Light sleet showers
7°
23
Patchy light rain with thunder
6°
24
Fog
11°
25
Moderate or heavy rain with thunder
15°
26
Light rain shower
14°
27
Partly cloudy
13°
28
Patchy rain possible
19°
29
Patchy light rain with thunder
16°
30
Thundery outbreaks possible
12°
31
Patchy rain possible
16°

Temperatures trend during May in Banff

See the weather trend as well as the moving average line

May weather in Banff day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Moderate rain
Moderate rain
 11° /-2° 7.1 mm 0 cm
2 May Patchy rain possible
Patchy rain possible
 12° /-2° 4.2 mm 0 cm
3 May Sunny
Sunny
 16° /-4° 0 mm 0 cm
4 May Sunny
Sunny
 20° /-1° 0 mm 0 cm
5 May Sunny
Sunny
 22° /2° 0 mm 0 cm
6 May Patchy rain possible
Patchy rain possible
 6° /1° 4 mm 0.7 cm
7 May Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-2° 3.4 mm 2.5 cm
8 May Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-3° 4.8 mm 3.5 cm
9 May Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-7° 2.5 mm 1.8 cm
10 May Mist
Mist
 4° /-13° 1.4 mm 0.1 cm
11 May Patchy light rain with thunder
Patchy light rain with thunder
 9° /-9° 1.2 mm 0 cm
12 May Patchy rain possible
Patchy rain possible
 12° /-6° 0.5 mm 0 cm
13 May Patchy light rain with thunder
Patchy light rain with thunder
 10° /-1° 9.3 mm 3.8 cm
14 May Light rain
Light rain
 9° /1° 5.6 mm 0 cm
15 May Patchy light rain with thunder
Patchy light rain with thunder
 11° /-1° 4.5 mm 3.1 cm
16 May Patchy rain possible
Patchy rain possible
 11° /1° 7.5 mm 0 cm
17 May Patchy light rain with thunder
Patchy light rain with thunder
 8° /-1° 11.1 mm 0.3 cm
18 May Patchy light rain with thunder
Patchy light rain with thunder
 6° /-2° 18.5 mm 0.2 cm
19 May Light rain shower
Light rain shower
 8° /-1° 3 mm 0.1 cm
20 May Patchy light rain with thunder
Patchy light rain with thunder
 6° /-1° 2.9 mm 0 cm
21 May Light rain shower
Light rain shower
 8° /-2° 3.4 mm 0 cm
22 May Light sleet showers
Light sleet showers
 7° /-2° 31.1 mm 0.1 cm
23 May Patchy light rain with thunder
Patchy light rain with thunder
 6° /-3° 11.3 mm 0.9 cm
24 May Fog
Fog
 11° /1° 1.5 mm 0 cm
25 May Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 15° /1° 3.7 mm 0 cm
26 May Light rain shower
Light rain shower
 14° /3° 0.6 mm 0 cm
27 May Partly cloudy
Partly cloudy
 13° /2° 0 mm 0 cm
28 May Patchy rain possible
Patchy rain possible
 19° /5° 0 mm 0 cm
29 May Patchy light rain with thunder
Patchy light rain with thunder
 16° /2° 11 mm 0 cm
30 May Thundery outbreaks possible
Thundery outbreaks possible
 12° /1° 2.4 mm 0 cm
31 May Patchy rain possible
Patchy rain possible
 16° /3° 0.2 mm 0 cm
Next
Important Notice
Our weather forecast for Banff in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Banff forecast closer to your planned date for the most up-to-date weather information.
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Banff in May - FAQ

What are the expected maximum and minimum temperatures in Banff during May?

Prepare for cooler days with highs just around 15° and colder nights, dipping below -2°.

How much rainfall should be expected in Banff during May?

Significant rainfall exceeding 439.5 mm is expected in Banff during May, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Banff in May 2026?

Banff typically sees 53.4 cm of snowfall during May.

What are the typical wind conditions in Banff during May?

The average wind speed in Banff during May is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

Banff snow forecast May 2026

Track daily snowfall levels and discover Banff’s snowy potential this May ❄️

May rainfall patterns in Banff

Explore the daily rainfall trends and prepare for Banffs May weather 💧
Typically, Banff has 10 rainy days in May with a total of 439.5 mm of rainfall.

UV exposure in Banff during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️

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Get accurate weather forecasts for Banff, located at latitude 51.176 and longitude -115.57. Stay updated with localized weather information tailored for Banff.

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