Hayward Weather in September

During September, Hayward experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 8°C (46°F). Expect quite a bit of rainfall. Around 93 mm (3.7 in) is typical.

Rainfall in Hayward in September

This month experiences about 12 days of rain according to historical data, averaging 93 mm (3.7 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Hayward in September

September is a perfect month in Hayward, with 21°C (70°F) during the day and 8°C (46°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Hayward.

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• January
• February
• March
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• May
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• July
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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 Hayward's climate page.

Hayward Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 21°C (70°F)  

Chance of Rain 40%  

Precipitation 93 mm (3.7 in)  

Rainy days 12 days  

What to Wear in Hayward in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.

What To Do in Hayward in September

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

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

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 Hayward's climate page.

More climate data for Hayward

Temperature Rainfall

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