Bellingham Weather in September

Bellingham in September sees pleasant temperatures, with highs around 20°C (68°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 64 mm (2.5 in) on average, so pack waterproofs just in case.

Rainfall in Bellingham in September

Rain is expected on roughly 11 days, totalling around 64 mm (2.5 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Bellingham in September

September is one of the better months to visit Bellingham. Expect 20°C (68°F) during the day and 10°C (50°F) at night. September is known for being in the summer season. Conditions are often most pleasant around the middle of the day. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Bellingham in September

The area enjoys a moderate level of sunlight, with around 188 hours. It's a good balance between sunny and cloudy days.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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• January
• February
• March
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• May
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• August

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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 Bellingham's climate page.

Bellingham Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 38%  

Precipitation 64 mm (2.5 in)  

Rainy days 11 days  

Sunshine 188 hours  

Percentage Sunshine  

What to Wear in Bellingham in September

For Bellingham in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Bellingham in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

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 Bellingham's climate page.

More climate data for Bellingham

Temperature Rainfall Sunshine

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