Rohnert Park Weather in September

September in Rohnert Park brings high temperatures, with highs of 28°C (82°F) and nights dropping to 10°C (50°F). Rainfall is very low this month, averaging just 4.1 mm (0.2 in).

Rainfall in Rohnert Park in September

The climate data from previous years indicates about a single day of rain, averaging 4.1 mm (0.2 in) for the month. On the rare occasion it rains, expect a brief, moderate shower rather than a heavy downpour.

Temperature in Rohnert Park in September

September is a excellent month in Rohnert Park, with 28°C (82°F) during the day and 10°C (50°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. 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. On average, it is the warmest month of the year.

Sunshine in Rohnert Park in September

Expect a lot of sunshine this month, with about 275 hours of sun. These sunny conditions add to the overall experience.

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

Rohnert Park Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 3%  

Precipitation 4.1 mm (0.2 in)  

Rainy days a single day  

Sunshine 275 hours *  

Percentage Sunshine 77% *  

* Data from: Healdsburg, the United States of America (33 KM, 20 Miles).

What to Wear in Rohnert Park in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Rohnert Park 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 Rohnert Park's climate page.

More climate data for Rohnert Park

Temperature Rainfall Sunshine

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