Hayward weather in September (California, United States of America)

How does the weather in Hayward usually fare in September? Here's what you need to know about the weather for the month.

Temperatures

You’ll find the weather in Hayward during September to be perfect, with high temperatures and almost no rainfall. September is known for being in the summer season. Daytime temperatures are expected to be around 25°C, cooling off to about 13°C at night. This period is characterized by high temperatures, often making it the hottest month of the year. Dressing in light, airy clothing will help you stay cool and comfortable.

Precipitation

Hayward in September usually receives almost no rainfall, averaging around 4.2 mm for the month. Climate statistics over the past 30 years suggest around a single day of rain.

Average sunshine

The city usually sees around 270 hours of sunlight, indicating many sunny days.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August, September and October typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Hayward climate page with graphs.

 

Hayward, monthly averages in September

Min Temperature 13°C  

Max Temperature 25°C  

Chance of Rain 3%  

Precipitation 4.2 mm  

Rainy days a single day  

Humidity 73% *  

Sunshine 270 hours *  

Percentage Sunshine 73% *  

Data from: San Francisco, the United States of America (27 KM, 16 Miles).

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.

What To Do

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

Interested in more climate information?

This site provides you with all the information you need about the climate in Hayward.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.