Glacier Weather in September

September in Glacier typically sees daytime highs of 18°C (64°F) and nighttime lows of 8°C (46°F). Rainfall is also possible this month, so it's worth packing an umbrella. It falls within the summer season.

Rainfall in Glacier in September

Typically around 14 days of rainfall are expected, averaging 116 mm (4.6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Glacier in September

Temperatures in Glacier in September top out at 18°C (64°F) and drop to 8°C (46°F) overnight. The summer season is characteristic of September. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Glacier in September

The month experiences a moderate amount of sunlight, with 188 hours of sunshine. This provides a nice balance between sunshine and clouds.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
• February
• March
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Glacier's climate page.

Glacier Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 46%  

Precipitation 116 mm (4.6 in)  

Rainy days 14 days  

Sunshine 188 hours *  

Percentage Sunshine *  

* Data from: Bellingham, the United States of America (41 KM, 26 Miles).

What to Wear in Glacier in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Glacier in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Glacier's climate page.

More climate data for Glacier

Temperature Rainfall Sunshine

See the full Glacier climate overview or explore weather in the United States of America.