Campbell Weather in September

September in Campbell typically sees daytime highs of 27°C (81°F) and nighttime lows of 13°C (55°F). Minimal rainfall is typical for this month. It falls within the summer season.

Rainfall in Campbell in September

Climate statistics over the past 30 years suggest around a single day of rain, with 2.7 mm (0.1 in) average for the month. If rain does fall, it tends to be very light and barely worth getting out an umbrella for.

Temperature in Campbell in September

The temperature in Campbell in September is excellent. Daytime highs reach 27°C (81°F), with nights dropping to 13°C (55°F). Experience the summer season in September. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Campbell in September

With approximately 270 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Campbell.

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 Campbell's climate page.

Campbell Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 3%  

Precipitation 2.7 mm (0.1 in)  

Rainy days a single day  

Humidity 73% *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

* Data from: San Francisco, the United States of America (53 KM, 33 Miles).

What to Wear in Campbell in September

Warm but pleasant conditions in Campbell in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Campbell in September

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

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 Campbell's climate page.

More climate data for Campbell

Temperature Rainfall Sunshine Humidity

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