Lynden Weather in September

Lynden in September averages 21°C (70°F) during the day and 9°C (48°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Lynden in September

Typically, about 11 days will experience rainfall, with an average of 67 mm (2.6 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Lynden in September

The temperature in Lynden in September is excellent. Daytime highs reach 21°C (70°F), with nights dropping to 9°C (48°F). This month falls in the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Lynden in September

The month brings about 188 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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

Lynden Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 37%  

Precipitation 67 mm (2.6 in)  

Rainy days 11 days  

Sunshine 188 hours *  

Percentage Sunshine *  

* Data from: Bellingham, the United States of America (21 KM, 13 Miles).

What to Wear in Lynden in September

For Lynden 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 Lynden 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

4/10

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 Lynden's climate page.

More climate data for Lynden

Temperature Rainfall Sunshine

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